Change sets are the native way to move metadata customizations between sandboxes and your production environment1. They have the following characteristics:

• Change sets can only be used between related organizations, such as those that are linked by a deployment connection2. You cannot use change sets to deploy metadata to unrelated organizations, such as those belonging to different customers.
• Change sets can only deploy metadata, not data. You cannot use change sets to transfer records, such as accounts, contacts, or custom objects records, from one organization to another2. To move data between organizations, you need to use a data loader tool or an API.
• Sending a change set between two orgs requires a deployment connection to be established between the source and the target org2. The deployment connection allows the source org to upload outbound change sets and the target org to receive inbound change sets. The target org can then deploy the change set to apply the metadata changes.
• Change sets can deploy custom settings data only if the custom settings are defined as hierarchy and not list. Also, the custom settings data can only be deployed to other sandboxes, not to production3.
• Deployment is done in a one-way, single transaction. The source org sends the change set to the target org, but the target org does not send any confirmation or feedback to the source org. The deployment is either successful or fails as a whole, and it cannot be undone2. References:
• Everything You Need to Know About Salesforce Change Sets
• Deployments by using change sets - Salesforce Tutorial
• Using Change Sets To Deploy Apex - Salesforce Developers

The @TestSetup annotation method is used to create records for every method in the test class. This method is executed before any test method in the class and the records created in this method are available to all test methods in the class. The records are rolled back at the end of the test class execution. If a test method modifies or deletes the records created in the test setup method, those changes are rolled back after each test method finishes execution. The next executing test method gets access to the original unmodified state of those records. This annotation method can reduce test execution times and improve system resource efficiency compared to creating records for each test method individually. References: Using Test Setup Methods, Free Salesforce Platform Developer 1 Practice Exam (With Answers), SALESFORCE CERTIFIED PLATFORM DEVELOPER I

 A developer can execute tests in an org using the following methods:

• Setup Menu: By browsing to setup->Apex Test Execution, the developer can select and run tests from the user interface1.
• SalesforceDX: By using the Salesforce CLI on the command line, the developer can run tests in an org using the force:apex:test:run command2. This command can also be used from Salesforce Extensions for VS Code or from within third-party continuous integration tools, such as Jenkins or CircleCI2.
• Tooling API: The developer can also run tests using the Tooling REST API. Use the /runTestsAsynchronous/ and /runTestsSynchronous/ endpoints to run tests asynchronously or synchronously3.

References:

• 1: Get a Refresh on Testing Unit | Salesforce Trailhead
• 2: Run Apex Tests | Salesforce DX Developer Guide | Salesforce Developers
• 3: What are three ways for a developer to execute tests in an Org?

The Create Records element allows you to create one or more new records of a specific object type in a Flow1. In this case, the developer needs to create a new Contact record and store its ID on the Opportunity record. The other options are either incorrect or unnecessary, as they do not create a new record or assign its ID to another record23. References:

• Create Records | Flow Builder | Salesforce Developers
• Get Records | Flow Builder | Salesforce Developers
• Update Records | Flow Builder | Salesforce Developers

An Assignment Flow element is a logic element that allows you to set values in variables, collection variables, record variables, record collection variables, and global variables1. You can use an Assignment Flow element to assign the support representative name to the custom field on the Case object based on the case origin. This way, you can automate the case assignment process without writing any code or using any formula. A trigger, a formula field, and a validation rule are not the best solutions for this scenario, as they either require code, are not dynamic, or do not change the field value. References: 1: Flow Element: Assignment - Salesforce

A record-trigger flow on Opportunity is the most efficient way for a developer to implement this requirement, because it allows the developer to automate the creation and assignment of a Task without writing any code. A record-trigger flow can be configured to run when a record is created, updated, or deleted, and it can access and update related records using flow elements1. A record-trigger flow on Opportunity can also use the $Record global variable to access the Opportunity Owner and assign the Task to them2.

An auto-launched flow on Task is not an efficient way to implement this requirement, because it requires the developer to manually invoke the flow from another process, such as a trigger or a button3. An auto-launched flow on Task cannot access the Opportunity record or its Owner without a lookup element, which adds complexity and reduces performance.

An Apex trigger on Task is not an efficient way to implement this requirement, because it requires the developer to write and maintain code, which is more prone to errors and harder to debug than a flow. An Apex trigger on Task also cannot access the Opportunity record or its Owner without a SOQL query, which consumes governor limits and increases the risk of hitting the 101 SOQL limit.

A Task action is not an efficient way to implement this requirement, because it requires the user to manually create and assign the Task from the Opportunity record page. A Task action does not automate the process, and it relies on the user to remember and follow the business rule. References:

• 1: Automate Your Business Processes with Record-Triggered Flows
• 2: Use the $Record Global Variable in Record-Triggered Flows
• 3: Automate Your Business Processes with Scheduled and Platform Event–Triggered Flows
• : Access and Update Related Records in Flows
• : Apex Triggers
• : Apex Governor Limits
• : Create Actions for the Action Bar

The correct definition of the Apex method is shown in option C. This Apex method is defined as an invocable method, meaning it can be called from a process or flow. It’s marked with the @InvocableMethod annotation. The method returns a list of lists of recommendations and takes a list of ContactWrapper objects as input, which allows for bulk processing of records in flows. References:

• Certification - Platform Developer I - Trailhead, Section 5. Exam Outline, Topic: Logic and Process Automation, Weight: 46%, Objective: Describe how to use declarative and programmatic methods to create custom user interfaces on the Lightning Platform.
• [Call Apex Methods from Lightning Web Components], Trailhead Module, Unit: Call Apex Methods Imperatively
• [SOQL and SOSL Queries], Salesforce Developer Guide, Chapter: SOQL and SOSL Reference

The Apex method that is wired to the searchResults property should be defined as a static method with the @AuraEnabled(cacheable=true) annotation. This annotation enables the method to be called from the Lightning component and also allows the method to be cached by the Lightning Data Service. Caching the method improves the performance and user experience of the component, as it reduces the number of server requests and displays the data faster. The cacheable attribute should be set to true only for methods that return data that does not change frequently or does not depend on the user context. The term parameter should be used to filter the Opportunities based on the user input. References: Call Apex Methods, Improve Performance with Storable Actions, Prepare for Your Salesforce Platform Developer I Credential

 The best technology to create a custom user interface component that allows users to enter and validate information about their accounts is Lightning Web Components. Lightning Web Components are reusable HTML elements that use modern JavaScript and web standards to create fast and efficient user interfaces on the Lightning Platform. Lightning Web Components can leverage the Lightning Data Service to access and manipulate Salesforce data, and use the Lightning Design System to ensure a consistent look and feel. Lightning Web Components can also use Apex methods, wire adapters, and wire functions to perform complex logic and validations on the user input before saving it to the database. Flow is a declarative tool that allows users to automate business processes and guide users through screens, but it is not a technology to create custom user interface components. Visualforce is a framework that allows developers to create custom web pages and components using a tag-based markup language and Apex controllers, but it is not as fast, efficient, or modern as Lightning Web Components. VUE JavaScript framework is an external framework that can be used to create reactive user interfaces, but it is not a native Salesforce technology and it requires additional configuration and integration to work with Salesforce data and services. References:

• Lightning Web Components (Salesforce Developer Documentation)
• Build Lightning Web Components (Trailhead Trail)
• Flow Basics (Trailhead Module)
• Visualforce Basics (Trailhead Module)
• VUE JavaScript Framework (Official Website)

https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_sosc_custom_button.htm

External IDs are useful for data integration and synchronization between Salesforce and other external platforms. By mapping records based on the External ID, you can easily import, update, or upsert data from external sources without relying on the Salesforce record ID. External IDs are also indexed, which means they can speed up the SOQL queries that use them as filters or join conditions. References: External ID in Salesforce: Everything You Need To Know, Relating Records by Using an External ID, Certification - Platform Developer I - Trailhead

When deploying to a production org, all Apex code, including triggers, must have at least 75% test coverage. This means that at least 75% of the lines of code in each Apex class and trigger must be executed by unit tests. This is a requirement to ensure the quality and reliability of the code and to prevent any unexpected behavior or errors in production. Test coverage is calculated by dividing the number of covered lines by the total number of lines in each class or trigger. Test coverage can be measured by running tests in the Developer Console, the Salesforce CLI, or the Apex Test Execution page in Setup. Test coverage can also be viewed in the Code Coverage page in Setup or in the Problems tab in the Developer Console. Test coverage is different from test results, which indicate whether the tests passed or failed based on the assertions and expected outcomes. Test results do not affect the deployment, but they can help identify and fix any bugs or issues in the code. Test coverage and test results are both important aspects of testing Apex code and ensuring its functionality and performance. References:

• Testing Apex from the Apex Developer Guide
• Get Started with Apex Unit Tests from the Salesforce Trailhead
• Deploying Apex to a Production Organization from the Apex Developer Guide

The correct answers are option C and option D. Lightning Web Components are self-contained and reusable units of an application that follow web standards and can leverage modern web features. They also benefit from a rich component ecosystem that includes standard components, custom components, and third-party components. Visualforce, on the other hand, is a legacy framework that relies on server-side rendering and proprietary markup. It does not offer the same level of modularity, performance, and interoperability as Lightning Web Components. References: The information can be referenced from the official Salesforce documentation and learning materials available on Trailhead. Specifically, it aligns with the objectives outlined in Lightning Web Components Basics, where the benefits and features of Lightning Web Components are discussed. Lightning Web Components Basics

The Limits class contains methods that return limit information for specific resources, such as the number of DML statements, the amount of CPU time, or the number of SOQL queries. There are two versions of every method: the first returns the amount of the resource that has been used while the second version contains the word limit and returns the total amount of the resource that is available. See Execution Governors and Limits1. References: 1: Limits Class | Apex Reference Guide | Salesforce Developers(https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_methods_system_limits.htm)

Cascading delete operations occur when a record that has a master-detail relationship with another record is deleted, and the child records are also deleted as a result. This action may cause triggers to fire on both the parent and the child records, depending on the trigger definition and the operation type. For example, if a trigger is defined on the child object to execute after delete, it will fire when the parent record is deleted and the child records are cascaded. Similarly, if a trigger is defined on the parent object to execute before delete, it will fire when the parent record is deleted and before the child records are cascaded. However, updates to feed items, renaming or replacing a picklist entry, and changing a user’s default division do not directly cause triggers to fire, unless they are part of a larger transaction that involves a DML operation on a trigger-enabled object. References: Triggers and Merge Statements, Triggers and Recovered Records, Triggers

The code block provided will not insert any accounts because it violates Salesforce’s governor limits. In Salesforce, you cannot perform DML (Data Manipulation Language) operations like insert, update, delete inside a loop as it can quickly exceed the governor limits (for example, you can only do 150 DML operations per transaction). Since the ‘insert’ operation is inside a for loop that iterates 500 times, this code will hit the limit and throw an error. References: The information is based on the understanding of governor limits in Salesforce which is crucial for writing efficient and optimized code. More details can be found in the Apex Developer Guide on Governor Limits: Salesforce Governor Limits

To find the current user’s default record type for a given object, such as Opportunity, the developer can use the Opportunity.SObjectType.getDescribe().getRecordTypeInfos() method to get a list of RecordTypeInfo objects that represent the record types available to the current user1. Then, the developer can iterate through the list and check the isDefaultRecordTypeMapping() method on each RecordTypeInfo object to determine which one is the default record type for the current user2. The default record type is the one that is automatically assigned to new records created by the user, unless the user selects a different record type3.

The developer cannot use the other options to find the current user’s default record type. Option A is incorrect because there is no such method as profile.Opportunity.getDefaultRecordType(). Option C is incorrect because there is no such class as Schema.userInfo. Option D is incorrect because it does not find the default record type before inserting the record, but rather after creating the record, which may not be the same as the default record type. References:

• RecordTypeInfo Class | Apex Reference Guide | Salesforce Developers
• Get Default Record Type Id & Name in Apex - Salesforce Stack Exchange
• Set Record Type Preferences - Salesforce Help

Cross site scripting (XSS) is a vulnerability that occurs when an attacker can insert unauthorized HTML or JavaScript code into a web page viewed by other users. This can lead to hijacking the user’s session, stealing confidential information, or defacing the page. To prevent XSS, the developer should always validate and encode any user-supplied data before displaying it on the page. The ApexPages.currentPage() .getParameters() .get(‘url_param’) method returns the value of the URL parameter as a string, but does not perform any validation or encoding. Therefore, it is vulnerable to XSS if the parameter contains malicious code. The ApexPages.currentPage() .getParameters() .get(‘url_param’) .escapeHtml4() method escapes the HTML characters in the parameter value, such as <, >, &, and ", but does not prevent JavaScript code from being executed. Therefore, it is also vulnerable to XSS if the parameter contains a script tag or an event handler attribute. The String.escapeSingleQuotes(ApexPages.currentPage() .getParameters(). get(‘url_param’)) method escapes the single quotes in the parameter value, but does not affect any other characters. Therefore, it is also vulnerable to XSS if the parameter contains any HTML or JavaScript code. The String.ValueOf(ApexPages.currentPage() .getParameters() .get(‘url_param’)) method converts the parameter value to a string and encodes any HTML characters as HTML entities, such as <, >, &, and ". This prevents any HTML or JavaScript code from being rendered or executed on the page. Therefore, it is the best option to prevent XSS. References: You can learn more about XSS and how to prevent it in Apex from the following sources:

• Cross Site Scripting (XSS) | Apex Developer Guide
• Secure Coding Cross Site Scripting | Secure Coding Guide
• Cross-Site Scripting in Apex | SecureFlag Security Knowledge Base

 In order to update a record of a junction object, you must have Read/Write access on the primary relationship and Read/Write access on the junction object. A junction object is a custom object that is used to create a many-to-many relationship between two other objects via two master-detail relationships. The primary relationship is the first master-detail relationship that is created on the junction object, and the secondary relationship is the second master-detail relationship that is created on the junction object. To update a record of a junction object, you need to have Read/Write access on both the junction object and the primary relationship, because:

• Read/Write access on the junction object allows you to modify the fields and values of the junction object record, such as the name, description, or custom fields.
• Read/Write access on the primary relationship allows you to change the parent record of the junction object record, which is also known as reparenting. Reparenting is the process of moving a child record from one parent record to another in a master-detail relationship. Reparenting is not allowed by default in master-detail relationships, but it can be enabled by selecting the Allow reparenting option on the relationship field.

Read access on the primary relationship and Read/Write access on the secondary relationship are not sufficient to update a record of a junction object, because:

• Read access on the primary relationship does not allow you to change the parent record of the junction object record, which may be necessary for some updates. For example, if you want to move an OrderItem record from one Order record to another, you need to have Read/Write access on the primary relationship between OrderItem and Order.
• Read/Write access on the secondary relationship does not affect the update of the junction object record, because the secondary relationship is not involved in the update operation. The secondary relationship is only used to associate the junction object record with another parent record, but it does not allow you to modify the junction object record itself.

References: Junction Object, Reparent Records in Master-Detail Relationships, Prepare for Your Salesforce Platform Developer I Credential

A SOQL query can return a list of sObjects, a list of primitive data types, or a list of lists of primitive data types. A list is a collection of elements of the same data type. An sObject is a generic abstract type that corresponds to any Salesforce object, such as Account, Contact, or custom objects. A primitive data type is a basic data type, such as String, Boolean, Integer, Double, Date, or DateTime. A long is not a valid data type in Apex or SOQL, and an integer is a subtype of double, so they are not distinct return types for a SOQL query. References: Salesforce Object Query Language (SOQL), SOQL SELECT Syntax

The developer can update the method to prevent a SOQL injection attack by using variable binding and replacing the dynamic query with a static SOQL, or by using the escapeSingleQuote method to sanitize the parameter before its use. These are two ways to avoid concatenating user input directly into the query string, which can allow malicious input to alter the query logic and expose sensitive data. For example, the developer can rewrite the method as follows:

// Using variable binding and static SOQL List performSearch(String lastName){ String queryName = ‘%’ + lastName + ‘%’; return [SELECT Id, FirstName, LastName FROM Contact WHERE LastName LIKE :queryName]; }

// Using escapeSingleQuote method List performSearch(String lastName){ String sanitizedLastName = String.escapeSingleQuotes(lastName); return Database.query(‘SELECT Id, FirstName, LastName FROM Contact WHERE LastName LIKE '%’ + sanitizedLastName + ‘%'’); }

Using a regular expression on the parameter to remove special characters is not a reliable way to prevent a SOQL injection attack, because it may not cover all possible scenarios and may also remove valid input. Using the @Readonly annotation and the with sharing keyword on the class is not relevant to the SOQL injection issue, because they affect the data access and performance of the class, not the security of the query.

References: SOQL Injection, Invoking Callouts Using Apex, Prepare for Your Salesforce Platform Developer I Credential

 To create a Lightning component on a Visualforce page, you need to use the Lightning Components for Visualforce JavaScript library, which is included by the apex:includeLightning/ tag. This library provides the $Lightning object, which has two methods: $Lightning.use and $Lightning.createComponent. The $Lightning.use method references a Lightning dependency app that declares the component dependencies. The $Lightning.createComponent method creates an instance of the component and renders it on the page. See Use Lightning Components in Visualforce Pages1 for more details. References: 1: Use Lightning Components in Visualforce Pages | Lightning Aura Components Developer Guide | Salesforce Developers(https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/components_visualforce.htm)

A developer can execute tests in an org using different methods, depending on the context and the tools available. The Tooling API1 allows developers to run tests programmatically by making REST or SOAP calls. The Setup Menu2 provides a user interface for running tests in the Salesforce org. Salesforce DX3 is a command-line tool that enables developers to create, test, and deploy applications using scratch orgs, which are temporary and customizable orgs for development and testing purposes. References: 1: Tooling API | Apex Developer Guide | Salesforce Developers(https://cloudely.com/salesforce-interview-questions-with-answers/),  2: Run Unit Tests | Apex Developer Guide | Salesforce Developers(https://www.exam4training.com/what-are-three-ways-for-a-developer-to-execute-tests-in-an-org-choose-3/),  3: Salesforce DX | Salesforce Developers(https://www.freecodecamp.org/news/types-of-software-testing/)

Fast field updates record-triggered flow and account trigger are two automation tools that can be used to implement the feature of updating the Timezone field based on the postal code. A fast field update is a type of flow action that can update one or more fields on a record without using any Apex code1. A record-triggered flow can be configured to run when a record is created or updated, and can perform actions such as fast field updates, invocable actions, or subflows2. An account trigger is a piece of Apex code that can execute before or after an account record is inserted, updated, deleted, or undeleted, and can perform complex logic or callouts to external services3. Both of these tools can access the PostalCodeToTimezone_c custom object and update the Timezone field accordingly. References:

• Fast Field Updates, Trailhead module
• Record-Triggered Automation, Trailhead module
• Apex Triggers, Trailhead module

This SOQL query will get the record for the Viridian City gym and its trainers by using a subquery to fetch the related records from the Trainer_c object. The subquery uses the relationship name Trainer_c, which is the plural form of the custom object name with a suffix of __c. The main query uses the Name field of the Gym_c object to filter by the gym name. The query also uses the correct syntax for SOQL, which requires the use of the equal sign (=) for comparison operators, and single quotes (') for string literals. References: SOQL SELECT Syntax, [SOQL Relationships Between Objects], [SOQL Subquery]

https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_relationships.htm : https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_select_subquery.htm

A polymorphic lookup field is a relationship field that can reference one of several different types of objects. For example, the Who relationship field of a Task can be a Contact or a Lead. The WhatId field on the standard Event object is another example of a polymorphic lookup field, as it can reference any object that allows activities, such as Account, Opportunity, Case, etc. To determine the type of the referenced object, you can use the What.Type field in a SOQL query. You can also use the TYPEOF clause to filter or select fields based on the object type. References:

• Understanding Relationship Fields and Polymorphic Fields
• Working with Polymorphic Relationships in SOQL Queries
• Lookup Search Cheat Sheet

The best technique to streamline the data upload is to update the primaryid__c field definition to mark it as an External Id. An external ID is a custom field that has the “External ID” attribute, meaning that it contains unique record identifiers from a system outside of Salesforce. When you select this option, the field becomes searchable in Salesforce and you can use it to integrate with external systems and import data more efficiently1. By marking the primaryid__c field as an external ID, the developer can use it to match the records in the CSV file with the existing records in the candidate_c object, without creating duplicates or errors2.

References:

• 1: Create an External ID Field
• 2: Import Data with External IDs

According to the order of execution rules, the first step that happens when a record is saved is the JavaScript validation on the browser, if the record contains any dependent picklist fields. This validation limits each dependent picklist field to its available values. No other validation occurs on the client side. The other steps happen later on the server side, after the record is submitted to the server. References:

• Triggers and Order of Execution, Apex Developer Guide, Section: Triggers and Order of Execution
• Learn Salesforce Order of Execution, Salesforce Ben, Section: Order of Execution from Developer Docs API v54

Aura Components and Lightning Web Components are two technologies that are built on a framework that fully supports the business requirement of building a responsive application capable of responding to touch events, that will be executed on stateful clients. Both technologies are part of the Lightning Component Framework, which is a modern UI framework for developing dynamic web apps for mobile and desktop devices. The Lightning Component Framework uses standard web technologies, such as HTML, CSS, JavaScript, and Web Components, to create reusable and interoperable components that can adapt to different screen sizes, devices, and orientations. The framework also provides features such as data binding, event handling, state management, and server-side integration, to enable developers to create rich and interactive user interfaces.

Aura Components are the original technology for creating Lightning components. They use a custom XML-based markup language, Aura, to define the component structure and behavior. Aura Components can respond to touch events using the ui:input component, which provides a generic input element that can handle different input types, such as text, number, date, checkbox, radio, toggle, and email. The ui:input component also supports touch gestures, such as swipe, tap, and pinch, by using the ontouchstart, ontouchend, ontouchmove, and ontouchcancel attributes. Aura Components are stateful, meaning that they maintain their state on the client-side and communicate with the server only when necessary. This reduces the network traffic and improves the performance and user experience.

Lightning Web Components are the newer technology for creating Lightning components. They use standard HTML, CSS, and JavaScript to define the component structure and behavior. Lightning Web Components can respond to touch events using the standard HTML input element, which provides a native input element that can handle different input types, such as text, number, date, checkbox, radio, toggle, and email. The input element also supports touch gestures, such as swipe, tap, and pinch, by using the standard touch event listeners, such as touchstart, touchend, touchmove, and touchcancel. Lightning Web Components are also stateful, meaning that they maintain their state on the client-side and communicate with the server only when necessary. This reduces the network traffic and improves the performance and user experience.

Visualforce Components and Visualforce Pages are two technologies that are not built on a framework that fully supports the business requirement of building a responsive application capable of responding to touch events, that will be executed on stateful clients. Visualforce Components are reusable UI elements that can be used in Visualforce Pages. Visualforce Pages are web pages that can display and interact with Salesforce data and logic. Visualforce Components and Pages use a custom XML-based markup language, Visualforce, to define the UI elements and behavior. Visualforce Components and Pages can be made responsive by using the Salesforce Lightning Design System (SLDS), which is a collection of design guidelines, components, and resources that enable developers to create consistent and beautiful user interfaces across devices. However, Visualforce Components and Pages do not have native support for touch events, and require custom JavaScript code to handle them. Visualforce Components and Pages are also stateless, meaning that they do not maintain their state on the client-side and communicate with the server on every request. This increases the network traffic and affects the performance and user experience.

References:

• Lightning Component Framework
• Aura Components Developer Guide
• Lightning Web Components Developer Guide
• Visualforce Developer Guide
• Salesforce Lightning Design System

A master-detail relationship is a parent-child relationship in which the master (parent) record controls certain behaviors of the detail (child) record, such as security, ownership, and deletion. A re-parentable master-detail relationship allows the detail record to be moved to a different master record, as long as the user has the appropriate permissions. This relationship implementation supports the requirements of calculating the total amount on an Order, calculating the line amount for each Line Item, and moving Line Items to a different Order. A lookup relationship is a looser association between two objects, in which the parent record does not control the behaviors of the child record. A re-parentable lookup relationship also allows the child record to be moved to a different parent record, but it does not support the automatic roll-up summary fields or cascade deletion that are needed for the requirements. Therefore, option A is the correct relationship implementation for the scenario. References: Relationships Among Objects | Salesforce Help, Cert Prep: Platform Developer I: Data Modeling

• SVG resources, content asset files, and static resources are three Salesforce resources that can be accessed from a Lightning web component. They are used to store and display images, icons, fonts, stylesheets, JavaScript libraries, and other files that are required by the component12.
• SVG resources are Scalable Vector Graphics files that can be used to create and display icons and images in a Lightning web component. They can be referenced by using the @salesforce/resourceUrl import in the JavaScript file of the component12.
• Content asset files are files that are uploaded to the Salesforce Content Library and can be used to store and display images and other media in a Lightning web component. They can be referenced by using the @salesforce/contentAssetUrl import in the JavaScript file of the component12.
• Static resources are files or archives that are uploaded to the Static Resources page in Salesforce Setup and can be used to store and access stylesheets, JavaScript libraries, fonts, and other files in a Lightning web component. They can be referenced by using the @salesforce/resourceUrl import in the JavaScript file of the component12.
• Third-party web components and all external libraries are not Salesforce resources that can be accessed from a Lightning web component. They are not supported or recommended by Salesforce for security and performance reasons12.
• Third-party web components are web components that are created by other vendors or developers and are not part of the Lightning web components framework. They may not follow the same standards, specifications, or best practices as Lightning web components and may introduce security risks or compatibility issues12.
• All external libraries are JavaScript libraries that are hosted on external servers or CDNs and are not part of the Salesforce platform. They may not be compatible with the Lightning web components framework or the Locker Service, which enforces strict security policies and restrictions on the code execution and access12.

References:

• 1: Lightning Web Components Developer Guide
• 2: Cert Prep: Platform Developer I: User Interface

 A Full Sandbox is a type of sandbox that has a complete duplicate copy of the production org, including all the data and configuration. A Full Sandbox is useful for testing and development purposes, as it allows the developer to perform any changes or operations without affecting the production org. A Full Sandbox also supports performance testing, load testing, and staging1.

The other options are not correct because:

• A Developer Pro Sandbox is a type of sandbox that has a copy of the production org’s configuration (metadata) and some data. A Developer Pro Sandbox is limited by storage space and can only hold up to 1 GB of data1.
• A Partial Copy Sandbox is a type of sandbox that has a copy of the production org’s configuration and a sample of the data. A Partial Copy Sandbox is limited by storage space and can only hold up to 5 GB of data. The data is selected based on a sandbox template that defines the objects and records to include1.
• A Production org is not a duplicate copy of itself, but the original org where the live data and processes are stored. A Production org is not meant for testing or development purposes, as any changes or operations can affect the users and the business2.

References:

• 1: Sandbox Types and Templates
• 2: Salesforce Environments

To satisfy this requirement, a developer should use an invocable method. An invocable method is a method that can be called from a flow and can perform complex logic or integrate with an external system. An invocable method can also return data to the flow, such as a list of order numbers and dates. An invocable method can be annotated with @InvocableMethod to make it available in Flow Builder as an Apex action. An Apex controller is used to provide data and logic to a Visualforce page or a Lightning component, not a flow. An Apex REST class is used to expose custom REST API endpoints, not to retrieve data from an external system. An outbound message is used to send notifications to external systems when a certain event occurs in Salesforce, not to display data on a screen. References:

• Call Apex Code from a Flow
• InvocableMethod Annotation
• Free Salesforce Platform Developer 1 Practice Exam (With Answers)

To share a specific Case-Defect_c record with a user, the developer should share the parent Case and Defect_c records. This is because the Case-Defect_c object is a junction object that has two master-detail relationships with the Case and Defect_c objects. A junction object inherits the sharing and security settings from its two master objects, so the user needs to have access to both of them to view the junction object record1. Sharing only one of the parent records is not sufficient, as the user will not be able to see the other related record. Sharing only the junction object record is not possible, as it does not have its own sharing settings.

References:

• 1: Create a Junction Object

The correct implementation is to implement the line amount as a numeric formula field and the order amount as a roll-up summary field. This is because formula fields can calculate values based on other fields, such as quantity and price, without requiring any code or process1. Roll-up summary fields can aggregate values from related records, such as the sum of line amounts for an order, without requiring any code or process2. This solution is the most declarative and efficient way to achieve the requirement.

References:

• 1: Create Formula Fields
• 2: Define Roll-Up Summary Fields

 the current user has the permission to delete Account records, and false otherwise. This method is part of the Schema.DescribeSObjectResult class, which provides information about the metadata and permissions of an sObject type. The other options are incorrect because they either use invalid syntax or refer to the wrong object or variable. The accountRec variable is an instance of an Account record, not an sObject type, and it does not have an isDeletable() method. The Account sObject type does not have an isDeletable() method either, it is a property of the Schema.DescribeSObjectResult class. The AccountRec.ObjectType property returns the sObject type of the accountRec variable, which is Account, but it does not have an isDeletable() method either. References:

• Schema.DescribeSObjectResult Class
• Schema.sObjectType Class
• Apex Developer Guide: Checking User Permissions

To create test data within the unit test with the least amount of code, you can use Test.loadData to populate data in your test methods from a static resource containing test data. This way, you don’t have to write code to insert each record individually, and you can reuse the same data for multiple test methods. Test.loadData also allows you to specify the number of records to load, so you can easily test with 200 account records. Using the @isTest(isParallel=true) annotation in the test class does not affect the creation of test data, but it allows the test class to run in parallel with other test classes, which can improve performance. Using the @isTest(seeAllData=true) annotation in the test class is not recommended, as it makes the test methods rely on data in a particular organization, which can cause unexpected failures or inconsistencies. It is also a bad practice to use real data for testing, as it can expose sensitive information or cause unwanted side effects. References:

• Testing Best Practices
• Free Salesforce Platform Developer 1 Practice Exam (With Answers)
• Developer Best Practices Checklist

QUESTION: 130

The Job_Application__c custom object has a field that is a Master-Detail relationship to the Contact object, where the Contact object is the Master. As part of a feature implementation, a developer needs to retrieve a list containing all Contact records where the related Account Industry is ‘Technology’ while also retrieving the contact’s Job_Application__c records.

Based on the object’s relationships, what is the most efficient statement to retrieve the list of contacts?

A. [SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE

Account.Industry = ‘Technology’];

B. [SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE

Accounts.Industry = ‘Technology’];

C. [SELECT Id, (SELECT Id FROM Job_Applications_c) FROM Contact WHERE

Accounts.Industry = ‘Technology’];

D. [SELECT Id, (SELECT Id FROM Job_Application_c) FROM Contact WHERE

Account.Industry = ‘Technology’];

Answer: A

To query child records from a parent object, you need to use a subquery inside parentheses. The subquery should specify the fields to retrieve from the child object, and the relationship name to use. The parent object should be specified after the FROM clause, and any filter conditions on the parent object should be specified after the WHERE clause. In this case, the parent object is Contact, the child object is Job_Application__c, the relationship name is Job_Applications__r, and the filter condition is Account.Industry = 'Technology'.

The other options are incorrect because they use the wrong relationship name or syntax. Option B uses Accounts instead of Account, which is not a valid field on the Contact object. Option C uses Job_Applications_c instead of Job_Applications__r, which is not a valid relationship name. Option D uses Job_Application_c instead of Job_Applications__r, which is also not a valid relationship name. References:

• Trailhead: Write SOQL Queries
• Trailhead: Querying Data with SOQL
• Salesforce Developer Guide: Relationship Queries

The code snippet uses a for loop to create a list of 200 Account objects, each with a unique name. Then, it uses the Database.insert method to insert the list of accounts into the database in one DML operation. The Database.insert method returns a list of Database.SaveResult objects, which contain information about the success or failure of each record insertion. However, the code snippet does not check the results or handle any errors that might occur. Therefore, the result of the code snippet is that 200 accounts are inserted, unless an exception is thrown due to a trigger, validation rule, governor limit, or other reason. References:

• Apex Developer Guide: Using Database Methods
• Apex Developer Guide: Bulk DML Exception Handling
• Trailhead: Apex Basics & Database

• Bulk API is a RESTful API that allows you to load or delete large sets of data in Salesforce. It does not bypass the storage limits of your environment, but it can handle more records and run faster than other APIs12. Bulk API is useful for development, testing, and integration scenarios.
• Developer and Developer Pro sandboxes are two types of sandboxes that you can use to create and test applications in Salesforce. They have different storage limits and refresh intervals. Developer sandboxes have a 200 MB data storage limit and can be refreshed once per day. Developer Pro sandboxes have a 1 GB data storage limit and can be refreshed once every 5 days3 .
• Data import wizard is a web-based tool that you can use to import or update up to 50,000 records in Salesforce. It is not a client application, but a feature that is available in the Setup menu of Salesforce .

References:

• 1: Bulk API Developer Guide
• 2: Cert Prep: Platform Developer I: Data Modeling and Management
• 3: Sandbox Types and Templates
• : Cert Prep: Platform Developer I: Testing and Debugging
• : [What Is the Data Import Wizard?]
• : Cert Prep: Platform Developer I: Business Logic and Process Automation

 A developer can use a validation rule or a trigger to prevent Opportunities from being edited when they reach the Closed/Won stage. A validation rule can check the stage value and display an error message if the user tries to modify the record. A trigger can also check the stage value and throw an exception if the user tries to update the record. Both of these strategies can enforce the business logic at the database level and prevent unwanted changes.

An after-save flow or the Process Automation settings are not suitable for this requirement, because they are executed after the record is saved to the database. They can perform actions based on the record changes, but they cannot prevent the record from being edited in the first place.

References:

• 1: Validation Rules (Salesforce Help)
• 2: Triggers (Apex Developer Guide)
• 3: Run Flows After a Record Is Saved (Lightning Flow Developer Guide)
• 4: Process Automation Settings (Salesforce Help)

Scratch orgs are short-term Salesforce environments that you can spin up to work on a feature. They are source-driven, disposable, and fully configurable. To create scratch orgs, you need to use the Salesforce CLI, which is a command-line tool that lets you interact with Salesforce orgs and perform various tasks. You can use the Salesforce CLI to create a scratch org definition file, which specifies the features and settings of the scratch org, and then run the force:org:create command to create the scratch org. You can also use the force:org:open command to open the scratch org in a browser without logging in.

References: The use of Salesforce CLI to create scratch orgs can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Salesforce DX and scratch orgs, such as:

• Get Started with Salesforce DX
• Scratch Orgs
• Develop in Scratch Orgs

The error occurs because the code is not bulkified, meaning it doesn’t efficiently handle more than one record at a time. In Salesforce, there are governor limits that restrict the number of records you can process to ensure that no single operation consumes too many resources. In this case:

• Option C: Moving the DML that saves opportunities outside of the for loop will help in bulkifying the code to handle multiple records efficiently without hitting governor limits.
• Option D: Querying for existing opportunities outside of the for loop will also contribute to making sure that the code is bulkified and efficient.

References: Apex Developer Guide on Bulkifying Code (1

To declare variables that cannot change once a value is assigned, the developer can use the final keyword, which means that the variable can only be assigned a value once, either when declaring the variable or inside a constructor1. For example:

Java

// Declare a final variable and assign its value when declaring

final Integer creditAmount = 1000;

// Declare a final variable and assign its value in the constructor

final Integer debtAmount;

public MyClass() {

debtAmount = 500;

}

AI-generated code. Review and use carefully. More info on FAQ.

The developer cannot use the static keyword to achieve the same effect, as static variables are not final by default. Static variables are used to store class-level information that is shared across all instances of the class, and they can be changed by any method in the class or by external classes2. For example:

Java

// Declare a static variable and assign its value in the class constructor

static Integer creditAmount;

public MyClass() {

creditAmount = 1000;

}

// Declare a static variable and assign its value in a static initializer

static Integer debtAmount;

static {

debtAmount = 500;

}

// Change the value of the static variables in a method

public void updateAmounts(Integer newCredit, Integer newDebt) {

creditAmount = newCredit;

debtAmount = newDebt;

}

AI-generated code. Review and use carefully. More info on FAQ.

References:

• Using the final Keyword | Apex Developer Guide | Salesforce Developers
• Using the static Keyword | Apex Developer Guide | Salesforce Developers

The correct statement is D, because it uses the SOSL syntax to search for the phrase ‘ACME’ in all fields of the Contact and Lead objects, and returns a list of sObjects that match the criteria. The other statements are incorrect because:

• A uses the SOQL syntax, which can only query one object at a time, and the LIKE operator requires a wildcard character (%) before and after the search term.
• B uses the SOSL syntax, but returns a list of lists of sObjects, which is not the expected output.
• C uses the SOSL syntax, but returns a map of sObjects, which is not the expected output. References:
• SOSL Syntax - Salesforce
• SOSL Statements - Salesforce
• SOQL and SOSL Reference - Salesforce

The number of times a trigger can fire depends on the number of records that are processed and the number of DML operations that are performed. Some operations can cause the trigger to fire multiple times, either by updating the same records or by updating related records. These operations include:

• Process Flows: A process flow is a declarative tool that can automate complex business processes by executing actions based on criteria. A process flow can update the same record that triggered it, or a related record, which can cause the trigger to fire again1.
• Workflow Rules: A workflow rule is a declarative tool that can automate tasks and field updates based on criteria. A workflow rule can update the same record that triggered it, or a related record, which can cause the trigger to fire again2.
• Roll-Up Summary fields: A roll-up summary field is a custom field that aggregates child record information into a parent record. A roll-up summary field can update the parent record when a child record is inserted, updated, deleted, or undeleted, which can cause the trigger to fire again3.

The other options do not affect the number of times a trigger can fire. Criteria-based sharing calculations and email messages do not update records or cause DML operations. References:

• Process Automation | Salesforce Help
• Workflow Rules | Salesforce Help
• Roll-Up Summary Fields | Salesforce Help

Debug logs are used to track events that occur in an org, such as database operations, Apex code execution, workflow processes, and API calls. Debug logs have different categories, levels, and filters that determine what information is logged and how much detail is included. Some of the statements about debug logs are:

• Debug log levels are cumulative, where FINE log level includes all events logged at the DEBUG, INFO, WARN, and ERROR levels. This means that setting a higher log level for a category will also log the events from the lower levels. For example, if the log level for Apex Code is FINE, then the debug log will include log messages generated by DML statements, inline SOQL or SOSL queries, the start and completion of any triggers, and the start and completion of any test method.
• The maximum size of a debug log is 5 MB. Debug logs that are larger than 5 MB are reduced in size by removing older log lines, such as log lines for earlier System.debug statements. The log lines can be removed from any location, not just the start of the debug log.
• System debug logs are retained for 24 hours. Monitoring debug logs are retained for seven days. System debug logs are generated when you have active user-based trace flags, when you run Apex tests, and when executed code or API requests include debugging parameters or headers. Monitoring debug logs are generated when you set debug log filters for specific users, classes, and triggers.

The other statements are not accurate because:

• Only the 20 most recent debug logs for a user are kept. This is not true, because the number of debug logs that are kept for a user depends on the log size and the retention period. For example, if a user has 10 debug logs that are each 1 MB in size, and another user has 10 debug logs that are each 500 KB in size, then the first user will have more debug logs retained than the second user, even if they both generated the same number of logs.
• Debug logs can be set for specific users, classes, and triggers. This is partially true, but not entirely. You can set debug log filters for specific users, classes, and triggers, but you cannot set debug log levels for them. Debug log levels are set at the org level, and they apply to all debug logs that are generated in the org.

References:

• : Debug Log Levels and Filters
• : Debug Log Size and Retention
• : Set Debug Log Filters

 Validation rules and record-triggered flows are two declarative options for building out the business logic layer of a Salesforce application. Validation rules allow the developer to define criteria and error messages to prevent invalid data from being saved1. Record-triggered flows allow the developer to automate actions based on changes in records, such as creating, updating, or deleting related records2. Both of these options can be configured and maintained by a Salesforce administrator without writing code. References:

• Validation Rules, Trailhead module
• Record-Triggered Automation, Trailhead module

The correct answer is option B. Use Security.stripInaccessible to remove fields inaccessible to the current user. This method takes a list of records and an access type (READ, UPDATE, CREATE, or UPSERT) and returns a new list of records with the inaccessible fields removed. This way, the Lightning web component can display the records without throwing any errors due to field-level security.

Option A is incorrect because WITH SECURITY_ENFORCED is a SOQL clause that enforces field-level security on all fields in the query. If the query returns any fields that the user does not have access to, the query will throw an exception. This is not desirable for the Lightning web component, as it will prevent the component from displaying any records at all.

Option C is incorrect because Lightning Data Service is a layer of Lightning web components that provides access to Salesforce data and metadata, cache management, and data synchronization. However, Lightning Data Service does not automatically handle field-level security for the records it retrieves. The developer still needs to use Security.stripInaccessible or another method to remove the inaccessible fields.

Option D is incorrect because Lightning Locker Service is a security feature that isolates Lightning web components from each other and from the rest of the page. It does not enforce sharing rules or field-level security for the data that the components access.

References: Security.stripInaccessible (Apex Developer Guide)), WITH SECURITY_ENFORCED (Apex Developer Guide)), Lightning Data Service Basics (Trailhead)), Lightning Locker (Lightning Web Components Developer Guide))

• By providing device-awareness for mobile and desktops. This is true because the Lightning Component framework is a UI framework for developing Lightning components for mobile and desktop devices. Lightning web components and Aura components can coexist and interoperate on a page. The framework takes care of rendering the components appropriately for different devices and screen sizes1.
• By providing an Agile process with default steps. This is false because the Lightning Component framework does not provide any specific process or methodology for developing solutions. Developers can use any process that suits their needs, such as Agile, Waterfall, or Scrum2.
• By providing code review standards and processes. This is false because the Lightning Component framework does not provide any code review standards or processes. Developers are responsible for ensuring the quality and maintainability of their code, and they can use tools such as code analysis, testing, and debugging to help them3.
• By providing change history and version control. This is false because the Lightning Component framework does not provide any change history or version control features. Developers can use tools such as Git, SVN, or Salesforce DX to manage their source code and track changes.

References:

• 1: Introducing Aura Components
• 2: Agile Development with Salesforce
• 3: Code Quality and Code Analysis
• : Source Control and Salesforce Development

A screen-based flow is a type of flow that allows you to create a guided, visual experience for users to collect and update data, execute logic, call Apex classes, and more. Screen-based flows are ideal for creating interactive processes that require user input and feedback, such as the scenario of processing damaged or stolen credit cards. A screen-based flow can be embedded in a Lightning page, a Visualforce page, a utility bar, or a custom tab, and can be launched from various places, such as a button, a link, a Lightning component, or a process. A screen-based flow can also leverage standard and custom objects, variables, formulas, and other elements to create dynamic and complex business logic. References: Screen-Based Flows Salesforce Platform Developer 1 Exam Guide, page 7.

Creating a test class to execute the business logic and run the test in the Developer Console is the best approach to ensure that the Apex class is working according to specification. Test classes are used to verify the functionality, performance, and security of the Apex code, and to provide code coverage for deployment. Test classes can also use assertions to validate the expected outcomes of the code. The Developer Console provides a user interface to create, run, and debug test classes, and to view the test results and code coverage1.

Including a savepoint and Database.rollback is not a valid approach to test the Apex class, as it is used to undo the changes made by the DML operations in a transaction2. This does not verify the functionality or performance of the Apex code, nor does it provide code coverage.

Including a try/catch block to the Apex class is not a sufficient approach to test the Apex class, as it is used to handle the exceptions that may occur during the execution of the code3. This does not verify the functionality or performance of the Apex code, nor does it provide code coverage. Moreover, a try/catch block should be used in conjunction with a test class, not as a replacement.

Running the code in an Execute Anonymous block in the Developer Console is not a recommended approach to test the Apex class, as it is used to execute arbitrary Apex code that is not saved as part of the application. This does not verify the functionality or performance of the Apex code, nor does it provide code coverage. Moreover, running the code in an Execute Anonymous block may have unintended consequences on the data and the application, as it does not follow the best practices of testing.

References:

• 1: Test Classes | Apex Developer Guide | Salesforce Developers
• 2: Savepoints and Rollbacks | Apex Developer Guide | Salesforce Developers
• 3: Exception Handling | Apex Developer Guide | Salesforce Developers
• : [Execute Anonymous | Apex Developer Guide | Salesforce Developers]
• : [Best Practices for Testing | Apex Developer Guide | Salesforce Developers]

 Importing data using the Data Loader and the Bulk API causes a before trigger to fire by default for Accounts. A before trigger is a type of trigger that executes before a record is saved to the database. A before trigger can be used to validate or modify the record values before they are inserted or updated1. When using the Data Loader or the Bulk API to import data, the before trigger will run for each batch of records that are processed2.

The other options are not correct because:

• Renaming or replacing picklist values does not cause a before trigger to fire, as it does not affect the record values directly. However, it may affect the validation rules or formulas that reference the picklist values3.
• Converting Leads to Contact accounts does not cause a before trigger to fire, as it is a special operation that bypasses the standard trigger execution order. Instead, the LeadConvert class can be used to override the default lead conversion process and invoke custom logic.
• Updating addresses using the Mass Address update tool does not cause a before trigger to fire, as it is a tool that allows users to update address fields on multiple records at once. However, it may cause an after trigger to fire, as it updates the records in the database.

References:

• 1: Triggers and Order of Execution
• 2: Bulk API Developer Guide
• 3: Rename or Replace Picklist Values
• : Apex Developer Guide: LeadConvert Class
• : Mass Update Addresses

The first step towards troubleshooting the issue is to check the asynchronous job monitoring page to view the job status and logs. This page shows the progress, state, and results of the batch Apex job, as well as any errors or exceptions that occurred during the execution. The developer can use this information to identify the cause of the timeout and take appropriate actions to fix it. References: Using Batch Apex, Use Batch Apex Unit, Execute a batch Apex from Developer Console

Apex test methods should not depend on existing data in the sandbox, because they may not have access to the same data when they run in a different environment, such as production. Test methods should create their own test data, or use the @testSetup annotation to create common test data for all test methods in a class12. The Execute Anonymous tool runs the code in the context of the current user and the current data, so it may not reproduce the same behavior as the test method3. References:

• Get Started with Apex Unit Tests Unit | Salesforce Trailhead
• Using Test Setup Methods | Apex Developer Guide - Salesforce Developers
• Test Class | Apex Reference Guide | Salesforce Developers

The given Apex code snippet initializes an integer variable x with a value of 0. It then enters a do-while loop where x is set to 1 and then incremented by one before the loop condition is checked. Since the loop only iterates once (as x is now greater than 1), the final value of x when written to the debug log will be 1. References: The explanation can be inferred from understanding the basic working of loops and variables in Apex, as covered in Salesforce Platform Developer I Learning documents. You can also refer to the Apex Developer Guide for more details on Apex syntax and features.

• Validation Rules. This is true because validation rules are a declarative way of enforcing data quality and business logic on the Salesforce objects. Validation rules can prevent users from saving records that do not meet certain criteria, such as required fields, unique values, or custom formulas1.
• Record-Triggered Flow. This is true because record-triggered flows are a declarative way of automating business processes and logic on the Salesforce objects. Record-triggered flows can perform actions such as creating, updating, or deleting records, sending emails, or calling Apex classes when a record is created, updated, or deleted2.
• Remote Actions. This is false because remote actions are a programmatic way of invoking Apex methods from Visualforce pages or Lightning components. Remote actions require writing Apex code and using the @RemoteAction annotation to expose the methods to the client-side3.
• Batch Jobs. This is false because batch jobs are a programmatic way of processing large sets of data or records in batches using Apex. Batch jobs require writing Apex code and implementing the Database.Batchable interface to define the start, execute, and finish methods of the job.

References:

• 1: Validation Rules
• 2: Record-Triggered Flows
• 3: Remote Actions
• : Batch Jobs

 To satisfy the requirements, a developer should implement a flow and an invocable method. A flow is a declarative tool that allows you to automate business processes by collecting data and performing actions in your org or an external system1. An invocable method is a method that can be called by a flow, a process, or another Apex method2. By using a flow and an invocable method, the developer can achieve the following steps:

• Create a flow that guides the sales rep through the scripted steps with each new customer they create1.
• In the flow, use an Apex action to invoke an invocable method that calls the REST endpoint of UC’s ERP system and passes the customer information as a parameter23.
• In the invocable method, use the HttpRequest and HttpResponse classes to send a GET request to the REST endpoint and receive a response that contains the customer data4.
• In the invocable method, parse the response body and return the customer data as an output parameter to the flow24.
• In the flow, use a screen element to display the customer data to the sales rep if the customer exists in the ERP system1.

Using a future method or a trigger are not effective ways to satisfy the requirements. A future method is a method that runs in the background, asynchronously, after the current transaction finishes5. A trigger is a piece of Apex code that executes before or after a record is inserted, updated, deleted, or undeleted. Neither of these options can interact with the flow or the sales rep, and they are not suitable for calling a REST endpoint that requires a synchronous response5 . References: 1 Automate Your Business Processes with Flows | Salesforce Trailhead1, 2 InvocableMethod Annotation | Apex Developer Guide | Salesforce Developers2, 3 Call Apex Code from a Flow | Salesforce Trailhead3, 4 Apex REST Callouts | Apex Developer Guide | Salesforce Developers4, 5 Asynchronous Apex | Apex Developer Guide | Salesforce Developers5, Triggers | Apex Developer Guide | Salesforce Developers

An error condition formula on a validation rule on Opportunity is the automation that allows the developer to satisfy the requirement in the most efficient manner. A validation rule is a declarative feature that allows you to define criteria for data quality and integrity. It can prevent users from saving records that do not meet the specified conditions. In this case, the developer can create a validation rule on the Opportunity object that checks if the user profile is not Sales Manager, the Opportunity Status is Closed Lost, and the lost reason is blank. If these conditions are true, the validation rule can display an error message and prevent the record from being saved12.

References:

• 1: Validation Rules
• 2: Cert Prep: Platform Developer I: Data Modeling and Management

A custom controller is an Apex class that uses the default, no-argument constructor for the outer, top-level class. You cannot create a custom controller constructor that includes parameters. A custom controller is needed to perform complex validation that involves multiple objects and then redirect the user to another Visualforce page upon success. A custom controller can override the standard actions of a standard controller, such as save, edit, view, or delete, and define new actions. A custom controller runs in system mode, so the user’s permissions and field-level security do not apply. References: You can find more information about custom controllers in the Visualforce Developer Guide and the Apex Developer Guide on Salesforce’s official website.

A developer can execute tests in an org using the Tooling API or the Developer Console. The Tooling API allows developers to run tests programmatically by making REST or SOAP calls1. The Developer Console is a web-based tool that provides a user interface for running tests, viewing test results, and debugging code2. The Bulk API and the Metadata API are not used for executing tests, but for loading and managing large sets of data and metadata respectively3 .

References:

• Apex Developer Guide - Run Unit Test Methods
• Salesforce Help - Developer Console
• Salesforce Developer - Bulk API
• Salesforce Developer - Metadata API

Aura Component-based development is a framework for creating Lightning web components, which are the building blocks of modern Salesforce applications. Lightning web components are self-contained and reusable units of an application, which means they can be composed together to create complex user interfaces. They also benefit from a rich component ecosystem, which includes standard components provided by Salesforce, custom components created by developers, and third-party components available on AppExchange. These advantages make Aura Component-based development more flexible, modular, and efficient than Visualforce, which is an older framework based on HTML, JavaScript, and Apex. See Aura Components Basics1 and Lightning Web Components Basics2 for more details. References: 1: Aura Components Basics | Trailhead(https://stackoverflow.com/questions/26685/what-is-mvc-and-what-are-the-advantages-of-it),  2: Lightning Web Components Basics | Trailhead(https://www.marks4sure.com/pdi-platform-developer-i-questions.html)

The component is used to create editable fields that respect the field-level security and other attributes of the specified field on an object. It works with the component to display and save the values of record fields. The component automatically displays the correct input type based on the data type of the field. For example, if the field is a currency field, the component renders as a currency input. The component also respects the user’s locale and currency settings. See lightning-input-field1 for more details. References: 1: lightning-input-field | Apex Reference Guide | Salesforce Developers(https://developer.salesforce.com/docs/component-library/bundle/lightning-input/documentation)

A. if (Schema.sObjectType.Contact.isUpdatable()) - This checks if the Contact object is updatable for the current user. B. if (Schema.sObjectType.Contact.fields.Is_Active__c.isUpdateable()) - This checks if the Is_Active__c field on the Contact object is updatable for the current user.

These checks should be performed before executing DML statements to ensure that security is not bypassed.

C and D are incorrect because: C. It only checks if the Contact object is accessible, not whether it’s updatable. D. Checking ownership does not necessarily enforce field-level and object-level permissions.

References:

• Apex Developer Guide
• Trailhead: Data Security

I also noticed that you sent me an image along with your question. It seems to be a snippet of code written in Apex, which is used for Salesforce development. It shows a public method named updateContact that accepts a Contact object as a parameter. Inside this method, there’s an assignment operation where Is_Active__c field of thisContact object is set to false. A try/catch block follows where an attempt to update thisContact record occurs within try; any exceptions caught during this process are handled in catch block. If an exception occurs during update operation, an error message string gets concatenated with exception’s message and displayed using ApexPages.addmessage.

If you are looking for more resources to study for the Platform Developer I exam, you can check out the following links from my web search results:

• Free Salesforce Platform Developer 1 Practice Exam (With Answers): This is a website that offers 60-question practice exam with answers and explanations, written by a Salesforce Developer.
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I: This is a PDF document that provides the exam guide, sample questions, and answers for the certification exam.
• Salesforce Platform Platform Developer I Exams – Courses: This is a website that offers 4 full-length practice exams with 60 questions each, written by a Salesforce Developer

The correct definition of a Lightning Web Component property that uses the getAccounts method is option C. In Salesforce, the @wire decorator is used to read data from one of the wire adapters built into Lightning Web Components or create a JavaScript property in a Lightning web component. The property is then provisioned with data, error, or both. A provisioned property has a specific shape—data and error properties—designed for working with wire services.

In this case, @wire(getAccounts, { searchTern: '$searchTern' }) accountList; is the correct syntax where:

• getAccounts is the Apex method.
• { searchTern: '$searchTern' } are parameters passed to the Apex method.
• accountList is the JavaScript property that gets assigned the data returned by getAccounts.

References: Lightning Web Components Developer Guide

Custom exceptions in Apex are user-defined exception classes that can have their own member variables, methods, constructors, and interfaces. They must extend the system Exception class and have a class name that ends with “Exception”. They cannot extend other classes besides the Exception class. Custom exceptions enable more detailed error messages and custom error handling in catch blocks. They can also be rethrown as inner exceptions to preserve the stack trace information.

References:

• Create Custom Exceptions | Apex Developer Guide
• Exception Class and Built-In Exceptions | Apex Reference Guide
• Handling Exceptions in Apex: Creating and Using Custom Exceptions
• Custom Or User-Defined Exception In Apex | Salesforce Developer Tutorials
• Using custom exception types | Mastering Apex Programming

The statement Database.insert (records, false) should be used to allow some of the records in a list of records to be inserted if others fail to be inserted. This statement uses the Database class method insert with the allOrNone parameter set to false. This means that the operation allows partial success, and if some records fail, the remainder of the DML operation can still succeed. The method returns a list of Database.SaveResult objects, which contain the status and error information for each record. The developer can use this information to handle the failed records accordingly. The other statements either use the standard DML statement insert, which rolls back the entire transaction if any record fails, or use the allOrNone parameter set to true, which has the same effect as the standard DML statement. References: Database Class, Inserting and Updating Records, Database.insert(list,false) in apex

In this scenario, a formula field is the most appropriate choice to calculate the ratio between rejected and approved timesheets for a given project. This is because formula fields automatically calculate their values based on other fields’ values, requiring no additional maintenance or manual intervention. They are used for read-only purposes and are visible to users if they have read access to the object containing the formula field. To create the formula field, the developer can use the following expression:

IF(Total_Approved_Timesheets__c > 0, Total_Rejected_Timesheet__c / Total_Approved_Timesheets__c, 0)

This expression checks if the total approved timesheets is greater than zero, and if so, divides the total rejected timesheets by the total approved timesheets. Otherwise, it returns zero. This formula field will display the ratio as a decimal number, which can be formatted as a percentage if desired.

References: The use of formula fields for automatic calculations can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover objects and fields management, such as:

• Create Object Relationships
• Data Modeling
• Formula Operators and Functions by Context