PSE-Strata-Pro-24 Palo Alto Networks Systems Engineer Professional - Hardware Firewall Question and Answers

SASE (Secure Access Service Edge) is a cloud-based solution that combines networking and security capabilities to address modern enterprise needs. However, there are scenarios where an on-premises solution is more appropriate.

A. High growth phase with existing and planned mergers, and with acquisitions being integrated.

This scenario typically favors a SASE solution since it provides flexible, scalable, and centralized security that is ideal for integrating newly acquired businesses.

B. Most employees and applications in close physical proximity in a geographic region.

This scenario supports the choice of an on-premises solution. When employees and applications are concentrated in a single geographic region, traditional on-premises firewalls and centralized security appliances provide cost-effective and efficient protection without the need for distributed, cloud-based infrastructure.

C. Hybrid work and cloud adoption at various locations that have different requirements per site.

This scenario aligns with a SASE solution. Hybrid work and varying site requirements are better addressed by SASE’s ability to provide consistent security policies regardless of location.

D. The need to enable business to securely expand its geographical footprint.

Expanding into new geographic areas benefits from the scalability and flexibility of a SASE solution, which can deliver consistent security globally without requiring physical appliances at each location.

Key Takeaways:

On-premises solutions are ideal for geographically concentrated networks with minimal cloud adoption.

SASE is better suited for hybrid work, cloud adoption, and distributed networks.

References:

Palo Alto Networks SASE Overview

On-Premises vs. SASE Deployment Guide

Panorama is Palo Alto Networks’ centralized management solution for managing multiple firewalls. It supports multiple deployment options to suit different infrastructure needs. The valid deployment options are as follows:

Why "As a virtual machine (ESXi, Hyper-V, KVM)" (Correct Answer A)?Panorama can be deployed as a virtual machine on hypervisors like VMware ESXi, Microsoft Hyper-V, and KVM. This is a common option for organizations that already utilize virtualized infrastructure.

Why "With a cloud service provider (AWS, Azure, GCP)" (Correct Answer B)?Panorama is available for deployment in the public cloud on platforms like AWS, Microsoft Azure, and Google Cloud Platform. This allows organizations to centrally manage firewalls deployed in cloud environments.

Why "As a dedicated hardware appliance (M-100, M-200, M-500, M-600)" (Correct Answer E)?Panorama is available as a dedicated hardware appliance with different models (M-100, M-200, M-500, M-600) to cater to various performance and scalability requirements. This is ideal for organizations that prefer physical appliances.

Why not "As a container (Docker, Kubernetes, OpenShift)" (Option C)?Panorama is not currently supported as a containerized deployment. Containers are more commonly used for lightweight and ephemeral services, whereas Panorama requires a robust and persistent deployment model.

Why not "On a Raspberry Pi (Model 4, Model 400, Model 5)" (Option D)?Panorama cannot be deployed on low-powered hardware like Raspberry Pi. The system requirements for Panorama far exceed the capabilities of Raspberry Pi hardware.

Discovering Applications on the Network (Answer A):

Policy Optimizeranalyzes traffic logs to identifyapplications running on the networkthat are currently being allowed by port-based or overly permissive policies.

It providesvisibilityinto these applications, enabling administrators to transition to more secure,application-based policies over time.

Converting Broad Rules into Narrow Rules (Answer B):

Policy Optimizer helps refine policies byconverting broad application filters(e.g., rules that allow all web applications) intonarrower rules based on specific application groups.

This reduces the risk of overly permissive access while maintaining granular control.

Migrating from Port-Based Rules to Application-Based Rules (Answer C):

One of the primary use cases for Policy Optimizer is enabling organizations tomigrate from legacy port-based rules to application-based rules, which are more secure and aligned with Zero Trust principles.

Policy Optimizer identifies traffic patterns and automatically recommends the necessary application-based policies.

Why Not D:

5-tuple attributes (source IP, destination IP, source port, destination port, protocol)are used in traditional firewalls. Simplifying these attributes to 4-tuple (e.g., removing the protocol) is not a use case for Policy Optimizer, as Palo Alto Networks NGFWs focus onapplication-based policies, not just 5-tuple matching.

Why Not E:

Automating tagging of rules based on historical log data is not a specific feature of Policy Optimizer. While Policy Optimizer analyzes log data to recommend policy changes, tagging is not its primary use case.

References from Palo Alto Networks Documentation:

Policy Optimizer Overview

Transitioning to Application-Based Policies

Aperimeter firewallis traditionally deployed at the boundary of a network to protect it from external threats. It provides a variety of protections, including blocking unauthorized access, inspecting traffic flows, and safeguarding sensitive resources. Here is how the options apply:

Option A (Correct):Perimeter firewalls providenetwork layer protectionby filtering and inspecting traffic entering or leaving the network at the outer edge. This is one of their primary roles.

Option B:Power utilization is not a functional or architectural aspect of a firewall and is irrelevant when describing the purpose of a perimeter firewall.

Option C:Securing east-west traffic is more aligned withdata center firewalls, whichmonitor lateral (east-west) movement of traffic within a virtualized or segmented environment. A perimeter firewall focuses on north-south traffic instead.

Option D (Correct):A perimeter firewall primarily securesnorth-south traffic, which refers to traffic entering and leaving the network. It ensures that inbound and outbound traffic adheres to security policies.

Option E (Correct):Perimeter firewalls play a critical role inguarding against external attacks, such as DDoS attacks, malicious IP traffic, and other unauthorized access attempts.

References:

Palo Alto Networks Firewall Deployment Use Cases: https://docs.paloaltonetworks.com

Security Reference Architecture for North-South Traffic Control.

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 isnot a User-ID agent. It synchronizes with identity providers like Azure AD and Okta.

This is incorrect.

References:

Palo Alto Networks documentation on User-ID

Knowledge Base article on User-ID Agent Options

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.

In this scenario, the company does not use on-premises Active Directory and manages devices with Entra ID and Jamf, which implies a cloud-native and modern management setup. Below is the evaluation of each option:

Option A: Captive portal

Captive portal is typically used in environments where identity mapping is needed for unmanaged devices or guest users. It provides a mechanism for users to authenticate themselves through a web interface.

However, in this case, the company is managing devices using Entra ID and Jamf, which means identity information can already be centralized through other means. Captive portal is not an ideal solution here.

This option is not appropriate.

Option B: User-ID agents configured for WMI client probing

WMI (Windows Management Instrumentation) client probing is a mechanism used to map IP addresses to usernames in a Windows environment. This approach is specific to on-premises Active Directory deployments and requires direct communication with Windows endpoints.

Since the company does not have an on-premises AD and is using Entra ID and Jamf, this method is not applicable.

This option is not appropriate.

Option C: GlobalProtect with an internal gateway deployment

GlobalProtect is Palo Alto Networks' VPN solution, which allows for secure remote access. It also supports identity-based mapping when deployed with internal gateways.

In this case, GlobalProtect with an internal gateway can serve as a mechanism to provide user and device visibility based on the managed devices connecting through the gateway.

This option is appropriate.

Option D: Cloud Identity Engine synchronized with Entra ID

The Cloud Identity Engine provides a cloud-based approach to synchronize identity information from identity providers like Entra ID (formerly Azure AD).

In a cloud-native environment with Entra ID and Jamf, the Cloud Identity Engine is a natural fit as it integrates seamlessly to provide identity visibility for applicationsand data.

This option is appropriate.

References:

Palo Alto Networks documentation on Cloud Identity Engine

GlobalProtect configuration and use cases in Palo Alto Knowledge Base

To answer this question, let’s analyze each Cloud-Delivered Security Service (CDSS) subscription and its role in inline machine learning (ML). Palo Alto Networks leverages inline ML capabilities across several of its subscriptions to provide real-time protection against advanced threats and reduce the need for manual intervention.

A. Enterprise DLP (Data Loss Prevention)

Enterprise DLP is a Cloud-Delivered Security Service that prevents sensitive data from being exposed. Inline machine learning is utilized to accurately identify and classify sensitive information in real-time, even when traditional data patterns or signatures fail to detect them. This service integrates seamlessly with Palo Alto firewalls to mitigate data exfiltration risks by understanding content as it passes through the firewall.

B. Advanced URL Filtering

Advanced URL Filtering uses inline machine learning to block malicious URLs in real-time. Unlikelegacy URL filtering solutions, which rely on static databases, Palo Alto Networks' Advanced URL Filtering leverages ML to identify and stop new malicious URLs that have not yet been categorized in static databases. This proactive approach ensures that organizations are protected against emerging threats like phishing and malware-hosting websites.

C. Advanced WildFire

Advanced WildFire is a cloud-based sandboxing solution designed to detect and prevent zero-day malware. While Advanced WildFire is a critical part of Palo Alto Networks’ security offerings, it primarily uses static and dynamic analysis rather than inline machine learning. The ML-based analysis in Advanced WildFire happens after a file is sent to the cloud for processing, rather than inline, so it does not qualify under this question’s scope.

D. Advanced Threat Prevention

Advanced Threat Prevention (ATP) uses inline machine learning to analyze traffic in real-time and block sophisticated threats such as unknown command-and-control (C2) traffic. This service replaces the traditional Intrusion Prevention System (IPS) approach by actively analyzing network traffic and blocking malicious payloads inline. The inline ML capabilities ensure ATP can detect and block threats that rely on obfuscation and evasion techniques.

E. IoT Security

IoT Security is focused on discovering and managing IoT devices connected to the network. While this service uses machine learning for device behavior profiling and anomaly detection, it does not leverage inline machine learning for real-time traffic inspection. Instead, it operates at a more general level by providing visibility and identifying device risks.

Key Takeaways:

Enterprise DLP, Advanced URL Filtering, and Advanced Threat Prevention all rely on inline machine learning to provide real-time protection.

Advanced WildFire uses ML but not inline; its analysis is performed in the cloud.

IoT Security applies ML for device management rather than inline threat detection.

Palo Alto Networks Next-Generation Firewalls (NGFWs) provide robust security features across a variety of use cases. Let’s analyze each option:

A. Code-embedded NGFWs provide enhanced IoT security by allowing PAN-OS code to be run on devices that do not support embedded VM images.

This statement is incorrect. NGFWs do not operate as "code-embedded" solutions for IoT devices. Instead, they protect IoT devices through advanced threat prevention, device identification, and segmentation capabilities.

B. Serverless NGFW code security provides public cloud security for code-only deployments that do not leverage VM instances or containerized services.

This is not a valid use case. Palo Alto NGFWs provide security for public cloud environments using VM-series firewalls, CN-series (containerized firewalls), and Prisma Cloud for securing serverless architectures. NGFWs do not operate in "code-only" environments.

C. IT/OT segmentation firewalls allow operational technology (OT) resources in plant networks to securely interface with IT resources in the corporate network.

This is a valid use case. Palo Alto NGFWs are widely used in industrial environments to provide IT/OT segmentation, ensuring that operational technology systems in plants or manufacturing facilities can securely communicate with IT networks while protecting against cross-segment threats. Features like App-ID, User-ID, and Threat Prevention are leveraged for this segmentation.

D. PAN-OS GlobalProtect gateways allow companies to run malware and exploit prevention modules on their endpoints without installing endpoint agents.

This is incorrect. GlobalProtect gateways provide secure remote access to corporate networks and extend the NGFW’s threat prevention capabilities to endpoints, but endpoint agents are required to enforce malware and exploit prevention modules.

Key Takeaways:

IT/OT segmentation with NGFWs is a real and critical use case in industries like manufacturing and utilities.

The other options describe features or scenarios that are not applicable or valid for NGFWs.

References:

Palo Alto Networks NGFW Use Cases

Industrial Security with NGFWs

Advanced WildFire is Palo Alto Networks' cloud-based malware analysis and prevention solution. It determines whether files are malicious by executing them in a sandbox environment and observing their behavior. To address the customer's concern about the file categorization, the systems engineer must provide evidence of the file's behavior. Here’s the analysis of each option:

Option A: Review the threat logs for information to provide to the customer

Threat logs can provide a summary of events and verdicts for malicious files, but they do not include the detailed behavior analysis needed to convince the customer.

While reviewing the logs is helpful as a preliminary step, it does not provide the level of proof the customer needs.

This option is not sufficient on its own.

Option B: Use the WildFire Analysis Report in the log to show the customer the malicious actions the file took when it was detonated

WildFire generates an analysis report that includes details about the file's behavior during detonation in the sandbox, such as network activity, file modifications, process executions, and any indicators of compromise (IoCs).

This report provides concrete evidence to demonstrate why the file was flagged as malicious. It is the most accurate way to assure the customer that WildFire's decision was based on observed malicious actions.

This is the best option.

Option C: Open a TAG ticket for the customer and allow support engineers to determine the appropriate action

While opening a support ticket is a valid action for further analysis or appeal, it isnot a direct way to assure the customer of the current WildFire verdict.

This option does not directly address the customer’s request for immediate proof.

This option is not ideal.

Option D: Do nothing because the customer will realize Advanced WildFire is right

This approach is dismissive of the customer's concerns and does not provide any evidence to support WildFire's decision.

This option is inappropriate.

References:

Palo Alto Networks documentation on WildFire

WildFire Analysis Reports

Cobalt Strike is a popular post-exploitation framework often used by attackers for Command and Control (C2) operations. Malleable C2 profiles allow attackers to modify the behavior of their C2 communication, making detection more difficult. Stopping these attacks inreal timerequires deep inline inspection and the ability to block zero-day and evasive threats.

Why "Advanced Threat Prevention and PAN-OS 10.2" (Correct Answer B)?Advanced Threat Prevention (ATP) on PAN-OS 10.2 usesinline deep learning modelsto detect and blockCobalt Strike Malleable C2 attacksin real time. ATP is designed to prevent evasive techniques and zero-day threats, which is essential for blocking Malleable C2. PAN-OS 10.2 introduces enhanced capabilities for detecting malicious traffic patterns and inline analysis of encrypted traffic.

ATP examines traffic behavior and signature-less threats, effectively stopping evasive C2 profiles.

PAN-OS 10.2 includes real-time protections specifically for Malleable C2.

Why not "Next-Generation CASB on PAN-OS 10.1" (Option A)?Next-Generation CASB (Cloud Access Security Broker) is designed to secure SaaS applications and does not provide the inline C2 protection required to stop Malleable C2 attacks. CASB is not related to Command and Control detection.

Why not "Threat Prevention and Advanced WildFire with PAN-OS 10.0" (Option C)?Threat Prevention and Advanced WildFire are effective for detecting and preventing malware and known threats. However, they rely heavily on signatures and sandboxing for analysis, which is not sufficient for stoppingreal-time evasive C2 traffic. PAN-OS 10.0 lacks the advanced inline capabilities provided by ATP in PAN-OS 10.2.

Why not "DNS Security, Threat Prevention, and Advanced WildFire with PAN-OS 9.x" (Option D)?While DNS Security and Threat Prevention are valuable for blocking malicious domains and known threats, PAN-OS 9.x does not provide the inline deep learning capabilities needed for real-time detection and prevention of Malleable C2 attacks. The absence of advanced behavioral analysis in PAN-OS 9.x makes this combination ineffective against advanced C2 attacks.

CN-Series firewalls are Palo Alto Networks’ containerized NGFWs designed for protecting Kubernetes environments. These firewalls provide threat prevention, traffic inspection, and compliance enforcement within containerized workloads. Deploying CN-Series in a Kubernetescluster requires specific configuration files to set up the management plane and NGFW functionalities.

Option A (Correct):PAN-CN-NGFW-CONFIGis required to define the configurations for the NGFW itself. This file contains firewall policies, application configurations, and security profiles needed to secure the Kubernetes environment.

Option B (Correct):PAN-CN-MGMT-CONFIGMAPis a ConfigMap file that contains the configuration for the management plane of the CN-Series firewall. It helps set up the connection between the management interface and the NGFW deployed within the Kubernetes cluster.

Option C:This option does not represent a valid or required file for deploying CN-Series firewalls. The management configurations are handled via the ConfigMap.

Option D:PAN-CNI-MULTUSrefers to the Multus CNI plugin for Kubernetes, which is used for enabling multiple network interfaces in pods. While relevant for Kubernetes networking, it is not specific to deploying CN-Series firewalls.

References:

CN-Series Deployment Guide: https://docs.paloaltonetworks.com/cn-series

Kubernetes Integration with CN-Series Firewalls:https://www.paloaltonetworks.com

To address the MSSP’s requirement for logically separated BGP peering setups while efficiently managing standard routing rules and updates, Palo Alto Networks offers theAdvanced Routing Engineintroduced in PAN-OS 11.0. The Advanced Routing Engine enhances routing capabilities, including support forlogical routers, which is critical in this scenario.

Why A is Correct

Logical routers enable the MSSP to create isolated BGP peering configurations for each customer.

The Advanced Routing Engine allows the MSSP to share standard routing profiles (such as filters, policies, or maps) across logical routers, simplifying the deployment and maintenance of routing configurations.

This approach ensures scalability, as each logical router can handle the unique needs of a customer while leveraging shared routing rules.

Why Other Options Are Incorrect

B:While using APIs to automate deployment is beneficial, it does not solve the need for logically separated BGP peering setups. Logical routers provide this separation natively.

C:While virtual routers in PAN-OS can separate BGP peering setups, they do not support the efficient sharing of standard routing rules and profiles across multiple routers.

D:Virtual systems (vsys) are used to segregate administrative domains, not routing configurations. Vsys is not the appropriate solution for managing BGP peering setups across multiple customers.

Key Takeaways:

PAN-OS Advanced Routing Engine with logical routers simplifies BGP peering management for MSSPs.

Logical routers provide the separation required for customer environments while enabling shared configuration profiles.

References:

Palo Alto Networks PAN-OS 11.0 Advanced Routing Documentation

When evaluating Palo Alto Networks products, prospective customers need tools that can help them assess compatibility, performance, and value within their existing architecture. The following tools are the most relevant:

Why "Proof of Concept (POC)" (Correct Answer A)?A Proof of Concept is a hands-on evaluation that allows the customer to deploy and test Palo Alto Networks products directly within their environment. This enables them to assess real-world performance, compatibility, and operational impact.

Why "Security Lifecycle Review (SLR)" (Correct Answer C)?An SLR provides a detailed report of a customer’s network security posture based on data collected during a short evaluation period. It highlights risks, vulnerabilities, and active threats in the customer’s network, demonstrating how Palo Alto Networks solutions can address those risks. SLR is a powerful tool for justifying the value of a product in the customer’s architecture.

Why "Ultimate Test Drive" (Correct Answer D)?The Ultimate Test Drive is a guided hands-on workshop provided by Palo Alto Networks that allows prospective customers to explore product features and capabilities in a controlled environment. It is ideal for customers who want to evaluate products without deploying them in their production network.

Why not "Policy Optimizer" (Option B)?Policy Optimizer is used after a product has been deployed to refine security policies by identifying unused or overly permissive rules. It is not designed for pre-deployment evaluations.

Why not "Expedition" (Option E)?Expedition is a migration tool that assists with the conversion of configurations from third-party firewalls or existing Palo Alto Networks firewalls. It is not a tool for evaluating the suitability of products in the customer’s architecture.

After a customer has concluded an evaluation of Palo Alto Networks solutions, it is critical to provide a detailed analysis of the results and benefits gained during the evaluation. The following two tools are most appropriate:

Why "Best Practice Assessment (BPA)" (Correct Answer A)?The BPA evaluates the customer's firewall configuration against Palo Alto Networks' recommended best practices. It highlights areas where the configuration could be improved to strengthen security posture. This is an excellent tool to showcase how adopting Palo Alto Networks' best practices aligns with industry standards and improves security performance.

Why "Security Lifecycle Review (SLR)" (Correct Answer B)?The SLR provides insights into the customer's security environment based on data collected during the evaluation. It identifies vulnerabilities, risks, and malicious activities observed in the network and demonstrates how Palo Alto Networks' solutions can address these issues. SLR reports use clear visuals and metrics, making it easier to showcase the benefits of the evaluation.

Why not "Firewall Sizing Guide" (Option C)?The Firewall Sizing Guide is a pre-sales tool used to recommend the appropriate firewall model based on the customer's network size, performance requirements, and other criteria. It is not relevant for showcasing the benefits of an evaluation.

Why not "Golden Images" (Option D)?Golden Images refer to pre-configured templates for deploying firewalls in specific use cases. While useful for operational efficiency, they are not tools for demonstrating the outcomes or benefits of a customer evaluation.