Step 1: Understand the Best Practice Assessment (BPA)

Purpose: The BPA assesses NGFW (e.g., PA-Series) and Panorama configurations against best practices, including Center for Internet Security (CIS) Critical Security Controls, to enhance security and feature adoption.

Process: Requires a Tech Support File (TSF) upload or telemetry data from onboarded devices to generate the report.

Evolution: Historically available via the Customer Support Portal, the BPA has transitioned to newer platforms like AIOps and Strata Cloud Manager.

When adopting additional security features over time, remaining aligned with Zero Trust principles requires a focus on constant visibility, control, and adherence to best practices. The following actions are the most relevant:

Why "Apply decryption where possible to inspect and log all new and existing traffic flows" (Correct Answer B)?Zero Trust principles emphasize visibility into all traffic, whether encrypted or unencrypted. Without decryption, encrypted traffic becomes a blind spot, which attackers can exploit. By applying decryption wherever feasible, organizations ensure they can inspect, log, and enforce policies on encrypted traffic, thus adhering to Zero Trust principles.

Why "Use the Best Practice Assessment (BPA) tool to measure progress toward Zero Trust principles" (Correct Answer C)?The BPA tool provides detailed insights into the customer’s security configuration, helping measure alignment with Palo Alto Networks’ Zero Trust best practices. It identifies gaps in security posture and recommends actionable steps to strengthen adherence to Zero Trust principles over time.

Why not "Turn on all licensed Cloud-Delivered Security Services (CDSS) subscriptions in blocking mode for all policies" (Option A)?While enabling CDSS subscriptions (like Threat Prevention, URL Filtering, Advanced Threat Prevention) in blocking mode can enhance security, it is not an action specifically tied to maintaining alignment with Zero Trust principles. A more holistic approach, such as decryption and BPA analysis, is critical to achieving Zero Trust.

Why not "Use the Policy Optimizer tool to understand security rules allowing users to bypass decryption" (Option D)?Policy Optimizer is used to optimize existing security rules by identifying unused or overly permissive policies. While useful, it does not directly address alignment with Zero Trust principles or help enforce decryption.

Step 1: Understanding User-to-IP Mappings

User-to-IP mappings are the foundation of User-ID, a core feature of Strata Hardware Firewalls (e.g., PA-400 Series, PA-5400 Series). These mappings link a user’s identity (e.g., username) to their device’s IP address, enabling policy enforcement based on user identity rather than just IP. Palo Alto Networks supports multiple methods to populate these mappings, depending on the network environment and authentication mechanisms.

Purpose: Allows the firewall to apply user-based policies, monitor user activity, and generate user-specific logs.

Strata Context: On a PA-5445, User-ID integrates with App-ID and security subscriptions to enforce granular access control.

A. Discuss the PAN-OS Policy Optimizer feature as a means to safely migrate port-based rules to application-based rules.

PAN-OS includes the Policy Optimizer tool, which helps migrate legacy port-based rules to application-based policies incrementally and safely. This tool identifies unused, redundant, or overly permissive rules and suggests optimized policies based on actual traffic patterns.

Why Other Options Are Incorrect

B: The migration wizard does not automatically convert port-based rules to application-based rules. Migration must be carefully planned and executed using tools like the Policy Optimizer.

C: Running two firewalls in parallel adds unnecessary complexity and is not a best practice for migration.

D: While port-based rules are supported, relying on them defeats the purpose of transitioning to application-based security.

User-ID is a feature in PAN-OS that maps IP addresses to usernames by integrating with various directory services (e.g., Active Directory). User-ID can be implemented through agents provided by Palo Alto Networks. Here’s how each option applies:

Option A: Integrated agent

The integrated User-ID agent is built into PAN-OS and does not require an external agent installation. It is configured directly on the firewall and integrates with directory services to retrieve user information.

This is correct.

Option B: GlobalProtect agent

GlobalProtect is Palo Alto Networks' VPN solution and does not function as a User-ID agent. While it can be used to authenticate users and provide visibility, it is not categorized as a User-ID agent.

This is incorrect.

Option C: Windows-based agent

The Windows-based User-ID agent is a standalone agent installed on a Windows server. It collects user mapping information from directory services and sends it to the firewall.

This is correct.

Option D: Cloud Identity Engine (CIE)

The Cloud Identity Engine provides identity services in a cloud-native manner but is not a User-ID agent. It synchronizes with identity providers like Azure AD and Okta.

This is incorrect.

Zero-day malware attacks are sophisticated threats that exploit previously unknown vulnerabilities or malware signatures. To provide protection against such attacks, the appropriate Cloud-Delivered Security Service subscription must be included.

Why "Advanced WildFire" (Correct Answer C)?Advanced WildFire is Palo Alto Networks’ sandboxing solution that identifies and prevents zero-day malware. It uses machine learning, dynamic analysis, and static analysis to detect unknown malware in real time.

Files and executables are analyzed in the cloud-based sandbox, and protections are shared globally within minutes.

Advanced WildFire specifically addresses zero-day threats by dynamically analyzing suspicious files and generating new signatures.

Why not "AI Access Security" (Option A)?AI Access Security is designed to secure SaaS applications by monitoring and enforcing data protection and compliance. While useful for SaaS security, it does not focus on detecting or preventing zero-day malware.

Why not "Advanced Threat Prevention" (Option B)?Advanced Threat Prevention (ATP) focuses on detecting zero-day exploits (e.g., SQL injection, buffer overflows) using inline deep learning but is not specifically designed to analyze and prevent zero-day malware. ATP complements Advanced WildFire, but WildFire is the primary solution for malware detection.

Why not "App-ID" (Option D)?App-ID identifies and controls applications on the network. While it improves visibility and security posture, it does not address zero-day malware detection or prevention.

When an existing customer expands their online business into physical stores and requires Next-Generation Firewalls (NGFWs) at those locations to handle SD-WAN, security, and data protection—while mandating a vendor-validated deployment method—a systems engineer must leverage Palo Alto Networks’ Strata Hardware Firewall capabilities and validated deployment strategies. The Strata portfolio, particularly the PA-Series NGFWs, is designed to secure branch offices with integrated SD-WAN and robust security features. Below is a detailed explanation of why options A and D are the correct actions, grounded in Palo Alto Networks’ documentation and practices as of March 08, 2025.

Step 1: Recommend Professional Services (Option A)

The customer’s requirement for a "vendor-validated deployment method" implies a need for expertise and assurance that the solution meets their specific needs—SD-WAN, security, and data protection—across new physical stores. Palo Alto Networks offers professional services, either directly or through certified partners, to ensure proper deployment of Strata Hardware Firewalls like the PA-400 Series or PA-1400 Series, which are ideal for branch deployments. These services provide end-to-end support, from planning to implementation, aligning with the customer’s mandate for a validated approach.

Professional Services Scope: Palo Alto Networks’ professional services include architecture design, deployment, and optimization for NGFWs and SD-WAN. This ensures that the PA-Series firewalls are configured to handle SD-WAN (e.g., dynamic path selection), security (e.g., Threat Prevention with ML-powered inspection), and data protection (e.g., WildFire for malware analysis and Data Loss Prevention integration).

Vendor Validation: By recommending these services, the engineer ensures a deployment that adheres to Palo Alto Networks’ best practices, meeting the customer’s requirement for a vendor-validated method. This is particularly critical for a customer new to physical store deployments, as it mitigates risks and accelerates time-to-value.

Strata Hardware Relevance: The PA-410, for example, is a desktop NGFW designed for small branch offices, offering SD-WAN and Zero Trust security out of the box. Professional services ensure its correct integration into the customer’s ecosystem.