The correct way to dump a database from an Adobe Commerce Cloud environment is with the vendor/bin/ece-tools db-dump command.

A (db-snapshot) is not a valid ece-tools command.

B is incorrect: magento-cloud snapshot commands are for managing whole environment snapshots, not direct DB dumps.

C is correct: ece-tools db-dump provides the database export for staging/local replication.

Comprehensive and Detailed Explanation (with official references):

The correct answer is C. Restrict which resources (scripts, styles, images) are allowed to load on the website.

Adobe Commerce supports Content Security Policy (CSP) , a browser-level security feature that mitigates certain types of attacks such as Cross-Site Scripting (XSS) and data injection attacks .

By defining a CSP in Adobe Commerce, developers can control:

Which scripts can be executed (script-src).

Which stylesheets can be applied (style-src).

Which images and media can be loaded (img-src, media-src).

Whether inline scripts or styles are allowed.

This does not sanitize user input (A) nor restrict user access based on IP addresses (B). Instead, it focuses on restricting the sources of content that the browser can load .

Official Documentation Extracts:

“Content Security Policy (CSP) is an added layer of security that helps to detect and mitigate certain types of attacks, including Cross-Site Scripting (XSS) and data injection attacks. CSP works by restricting the sources from which content can be loaded.” — Adobe Commerce DevDocs: Content Security Policy

“A CSP allows developers to define approved sources of content that browsers can load. These policies help reduce the risk of malicious content injection in Magento storefronts.” — Adobe Commerce Security Guide

Adobe Commerce Cloud deployments can cause downtime if static content deployment happens during the deploy phase (when the site is live).

The recommended best practice is to move static content deployment to the build phase by configuring it in magento.env.yaml. This ensures static assets are generated before deployment, enabling zero-downtime deployments.

A is incorrect: deployment strategies belong in magento.env.yaml, not the global app YAML file.

B is incorrect: there is no such checkbox in the Cloud console.

C is correct and aligns with Adobe best practices.

The correct way to extend GraphQL is to extend the schema via schema.graphqls.

Define new fields for ProductInterface.

Provide a resolver class to return the attribute values.

B is incorrect: adding attributes in admin does not automatically expose them in GraphQL.

C is incorrect: repository plugins affect service contracts, not GraphQL schema definitions.

To add a custom salable quantity condition for use only during the add-to-cart flow, developers must extend the IsProductSalableForRequestedQtyConditionChainOnAddToCart virtual type. This chain is designed specifically for cart validation, ensuring the new condition runs only at that stage.

A would override the core class completely, not scoped to add-to-cart.

B relates to stock validator chains, not salable quantity conditions.

C is correct: defining a virtual type extension ensures proper conditional logic for reservations during cart validation.