Paloalto Networks PSE-Strata-Pro-24 Palo Alto Networks Systems Engineer Professional - Hardware Firewall Exam Practice Test

Palo Alto Networks' PAN-OS supports API keys for authentication when interacting with the firewall’s RESTful and XML-based APIs. By default, API keys do not have an expiration time set, but the expiration time for API keys can be configured by an administrator to meet specific requirements, such as a time-based deactivation after two hours. This is particularly useful for compliance and security purposes, where API keys should not remain active indefinitely.

Here’s an evaluation of the options:

Option A: This is incorrect because the default setting for API keys does not include an expiration time. By default, API keys are valid indefinitely unless explicitly configured otherwise.

Option B: This is incorrect because PAN-OS fully supports API keys. The API keys are integral to managing access to the firewall's APIs and provide a secure method for authentication.

Option C: This is incorrect because PAN-OS does support API key expiration when explicitly configured. While the default is "no expiration," the feature to configure an expiration time (e.g., 2 hours) is available.

Option D (Correct): The correct response to the RFP clause is that the default API key settings need to be modified to set the expiration time to 120 minutes (2 hours). This aligns with the customer requirement to enforce API key deactivation based on time. Administrators can configure this using the PAN-OS management interface or the CLI.

How to Configure API Key Expiration (Steps):

Access the Web Interface or CLI on the firewall.

Navigate to Device > Management > API Key Lifetime Settings (on the GUI).

Set the desired expiration time (e.g., 120 minutes).

Alternatively, use the CLI to configure the API key expiration:

set deviceconfig system api-key-expiry

commit

Verify the configuration using the show command or by testing API calls to ensure the key expires after the set duration.

To configure GlobalProtect to authenticate users from multiple SAML identity providers (IdPs), the correct approach involves creating multiple authentication profiles, one for each IdP. Here's the analysis of each option:

Option A: GlobalProtect with multiple authentication profiles for each SAML IdP

GlobalProtect allows configuring multiple SAML authentication profiles, each corresponding to a specific IdP.

These profiles are associated with the GlobalProtect portal or gateway. When users attempt to authenticate, they can be directed to the appropriate IdP based on their domain or other attributes.

This is the correct approach to enable authentication for users from multiple IdPs.

Option B: Multiple authentication mode Cloud Identity Engine authentication profile for use on the GlobalProtect portals and gateways

The Cloud Identity Engine (CIE) can synchronize identities from multiple directories, but it does not directly support multiple SAML IdPs for a shared GlobalProtect setup.

This option is not applicable.

Option C: Authentication sequence that has multiple authentication profiles using different authentication methods

Authentication sequences allow multiple authentication methods (e.g., LDAP, RADIUS, SAML) to be tried in sequence for the same user, but they are not designed for handling multiple SAML IdPs.

This option is not appropriate for the scenario.

Option D: Multiple Cloud Identity Engine tenants for each business unit

Deploying multiple CIE tenants for each business unit adds unnecessary complexity and is not required for configuring GlobalProtect to authenticate users to multiple SAML IdPs.

This option is not appropriate.

DNS-based threats, such as DNS tunneling, phishing, or malware command-and-control (C2) activities, are commonly used by attackers to exfiltrate data or establish malicious communications. Palo Alto Networks firewalls provide several mechanisms to address these threats, and the correct method is DNS sinkholing.

Why "DNS sinkholing" (Correct Answer D)?DNS sinkholing redirects DNS queries for malicious domains to an internal or non-routable IP address, effectively preventing communication with malicious domains. When a user or endpoint tries to connect to a malicious domain, the sinkhole DNS entry ensures the traffic is blocked or routed to a controlled destination.

DNS sinkholing is especially effective for blocking malware trying to contact its C2 server or preventing data exfiltration.

Why not "DNS proxy" (Option A)?A DNS proxy is used to forward DNS queries from endpoints to an upstream DNS server. While it can be part of a network's DNS setup, it does not actively stop DNS-based threats.

Why not "Buffer overflow protection" (Option B)?Buffer overflow protection is a method used to prevent memory-related attacks, such as exploiting software vulnerabilities. It is unrelated to DNS-based threat prevention.

Why not "DNS tunneling" (Option C)?DNS tunneling is itself a type of DNS-based threat where attackers encode malicious traffic within DNS queries and responses. This option refers to the threat itself, not the method to stop it.

The appropriate CDSS subscription to inspect and mitigate suspicious DNS traffic is Advanced DNS Security. Here’s why:

Advanced DNS Security protects against DNS-based threats, including domain generation algorithms (DGA), DNS tunneling (often used for data exfiltration), and malicious domains used in attacks. It leverages machine learning to detect and block DNS traffic associated with command-and-control servers or other malicious activities. In this case, unusually high DNS traffic to an unfamiliar IP address is likely indicative of a DNS-based attack or malware activity, making this the most suitable service.

Option A: Advanced Threat Prevention (ATP) focuses on identifying and blocking sophisticated threats in network traffic, such as exploits and evasive malware. While it complements DNS Security, it does not specialize in analyzing DNS-specific traffic patterns.

Option B: Advanced WildFire focuses on detecting and preventing file-based threats, such as malware delivered via email attachments or web downloads. It does not provide specific protection for DNS-related anomalies.

Option C: Advanced URL Filtering is designed to prevent access to malicious or inappropriate websites based on their URLs. While DNS may be indirectly involved in resolving malicious websites, this service does not directly inspect DNS traffic patterns for threats.

Option D (Correct): Advanced DNS Security specifically addresses DNS-based threats. By enabling this service, the customer can detect and block DNS queries to malicious domains and investigate anomalous DNS behavior like the high traffic observed in this scenario.

How to Enable Advanced DNS Security:

Ensure the firewall has a valid Advanced DNS Security license.

Navigate to Objects > Security Profiles > Anti-Spyware.

Enable DNS Security under the "DNS Signatures" section.

Apply the Anti-Spyware profile to the relevant Security Policy to enforce DNS Security.

The question asks about the policies where Device-ID, a feature of Palo Alto Networks NGFWs, can be applied. Device-ID enables the firewall to identify and classify devices (e.g., IoT, endpoints) based on attributes like device type, OS, or behavior, enhancing policy enforcement. Let’s evaluate its use across the specified policy types.

Step 1: Understand Device-ID

Device-ID leverages the IoT Security subscription and integrates with the Strata Firewall to provide device visibility and control. It uses data from sources like DHCP, HTTP headers, and machine learning to identify devices and allows policies to reference device objects (e.g., “IP Camera,” “Medical Device”). This feature is available on PA-Series firewalls running PAN-OS 10.0 or later with the appropriate license.

Step 1: Understand the Requirement and Context

Customer Need: Segregate the internal network into unique BGP environments, suggesting multiple isolated or semi-isolated routing domains within a single organization.

BGP Basics:

BGP is a routing protocol used to exchange routing information between autonomous systems (ASes).

eBGP: External BGP, used between different ASes.

iBGP: Internal BGP, used within a single AS, typically requiring a full mesh of peers unless mitigated by techniques like confederations or route reflectors.

Palo Alto NGFW: Supports BGP on virtual routers (VRs) within PAN-OS, enabling advanced routing capabilities for Strata hardware firewalls (e.g., PA-Series).

The question asks how Palo Alto Networks (PANW) Strata Hardware Firewalls enable the mapping of transactions as part of Zero Trust principles, requiring a systems engineer (SE) to provide two narratives for a customer RFP response. Zero Trust is a security model that assumes no trust by default, requiring continuous verification of all transactions, users, and devices—inside and outside the network. The Palo Alto Networks Next-Generation Firewall (NGFW), part of the Strata portfolio, supports this through its advanced visibility, decryption, and policy enforcement capabilities. Below is a detailed explanation of why options B and D are the correct narratives, verified against official Palo Alto Networks documentation.

Step 1: Understanding Zero Trust and Transaction Mapping in PAN-OS

Zero Trust principles, as defined by frameworks like NIST SP 800-207, emphasize identifying and verifying every transaction (e.g., network flows, application requests) based on context such as user identity, application, and data. For Palo Alto Networks NGFWs, "mapping of transactions" refers to the ability to identify, classify, and control network traffic with granular detail, enabling verification and enforcement aligned with Zero Trust.

The PAN-OS operating system achieves this through:

App-ID: Identifies applications regardless of port or protocol.

User-ID: Maps IP addresses to user identities.

Content-ID: Inspects and protects content, including decryption for visibility.

Security Policies: Enforces rules based on these mappings.

To prevent malicious actors from abusing file-sharing applications for data exfiltration, App-ID provides a granular approach to managing application traffic. Palo Alto Networks' App-ID is a technology that identifies applications traversing the network, regardless of port, protocol, encryption (SSL), or evasive tactics. By leveraging App-ID, security engineers can implement policies that restrict the use of specific applications or functionalities based on job functions, ensuring that only authorized users or groups can use file-sharing applications while blocking unauthorized or malicious usage.

Here’s why the options are evaluated this way:

Option A: DNS Security focuses on identifying and blocking malicious domains. While it plays a critical role in preventing certain attacks (like command-and-control traffic), it is not effective for managing application usage. Hence, this is not the best approach.

Option B (Correct): App-ID provides the ability to identify file-sharing applications (such as Dropbox, Google Drive, or OneDrive) and enforce policies to restrict their use. For example, you can create a security rule allowing file-sharing apps only for specific job functions, such as HR or marketing, while denying them for other users. This targeted approach ensures legitimate business needs are not disrupted, which aligns with the requirement of not impacting valid users.

Option C: Blocking all file-sharing applications outright using DNS Security is a broad measure that will indiscriminately impact legitimate users. This does not meet the requirement of allowing specific users to continue using file-sharing applications.

Option D: While App-ID can block file-sharing applications outright, doing so will prevent legitimate usage and is not aligned with the requirement to allow usage based on job functions.

How to Implement the Solution (Using App-ID):

Identify the relevant file-sharing applications using App-ID in Palo Alto Networks’ predefined application database.

Create security policies that allow these applications only for users or groups defined in your directory (e.g., Active Directory).

Use custom App-ID filters or explicit rules to control specific functionalities of file-sharing applications, such as uploads or downloads.

Monitor traffic to ensure that only authorized users are accessing the applications and that no malicious activity is occurring.

When configuring Advanced URL Filtering on a Palo Alto Networks firewall, the "Ransomware" category should be explicitly blocked to protect customers from URLs associated with ransomware activities. Ransomware URLs typically host malicious code or scripts designed to encrypt user data and demand a ransom. By blocking the "Ransomware" category, systems engineers can proactively prevent users from accessing such URLs.

Why "Ransomware" (Correct Answer A)?The "Ransomware" category is specifically curated by Palo Alto Networks to include URLs known to deliver ransomware or support ransomware operations. Blocking this category ensures that any URL categorized as part of this list will be inaccessible to end-users, significantly reducing the risk of ransomware attacks.

Why not "High Risk" (Option B)?While the "High Risk" category includes potentially malicious sites, it is broader and less targeted. It may not always block ransomware-specific URLs. "High Risk" includes a range of websites that are flagged based on factors like bad reputation or hosting malicious content in general. It is less focused than the "Ransomware" category.

Why not "Scanning Activity" (Option C)?The "Scanning Activity" category focuses on URLs used in vulnerability scans, automated probing, or reconnaissance by attackers. Although such activity could be a precursor to ransomware attacks, it does not directly block ransomware URLs.

Why not "Command and Control" (Option D)?The "Command and Control" category is designed to block URLs used by malware or compromised systems to communicate with their operators. While some ransomware may utilize command-and-control (C2) servers, blocking C2 URLs alone does not directly target ransomware URLs themselves.

By using the Advanced URL Filtering profile and blocking the "Ransomware" category, the firewall applies targeted controls to mitigate ransomware-specific threats.

A perimeter firewall is 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 provide network layer protection by 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 with data center firewalls, which monitor 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 secures north-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 in guarding against external attacks, such as DDoS attacks, malicious IP traffic, and other unauthorized access attempts.

The SE has demonstrated an NGFW managed by SCM, and the CISO now wants the POV to show progress toward industry standards (e.g., CSC) and verify effective use of purchased features (e.g., CDSS subscriptions like Advanced Threat Prevention). The SE must ensure the POV delivers measurable evidence during the testing timeline. Let’s evaluate the options.

Step 1: Understand the CISO’s Request

Industry Standards (e.g., CSC): The Center for Internet Security’s Critical Security Controls (e.g., CSC 1: Inventory of Devices, CSC 4: Secure Configuration) require visibility, threat prevention, and policy enforcement, which NGFW and SCM can address.

Feature Utilization: Confirm that licensed functionalities (e.g., App-ID, Threat Prevention, URL Filtering) are active and effective.

POV Goal: Provide verifiable progress and utilization metrics within the testing timeline.

The question asks for three use cases specific to Policy Optimizer, a feature in PAN-OS designed to enhance security policy management on Palo Alto Networks Strata Hardware Firewalls. Policy Optimizer helps administrators refine firewall rules by leveraging App-ID technology, transitioning from legacy port-based policies to application-based policies, and optimizing rule efficiency. Below is a detailed explanation of why options A, C, and E are the correct use cases, verified against official Palo Alto Networks documentation.

Step 1: Understanding Policy Optimizer in PAN-OS

Policy Optimizer is a tool introduced in PAN-OS 9.0 and enhanced in subsequent versions (e.g., 11.1), accessible under Policies > Policy Optimizer in the web interface. It analyzes traffic logs to:

Identify applications traversing the network.

Suggest refinements to security rules (e.g., replacing ports with App-IDs).

Provide insights into rule usage and optimization opportunities.

Its primary goal is to align policies with Palo Alto Networks’ application-centric approach, improving security and manageability on Strata NGFWs.

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.

Prisma Access (Answer A):

Strata Cloud Manager (SCM) and Panorama provide centralized visibility and management for Prisma Access, Palo Alto Networks’ cloud-delivered security platform for remote users and branch offices.

NGFW (Answer D):

Both SCM and Panorama are used to manage and monitor Palo Alto Networks Next-Generation Firewalls (NGFWs) deployed in on-premise, hybrid, or multi-cloud environments.

Prisma SD-WAN (Answer E):

SCM and Panorama integrate with Prisma SD-WAN to manage branch connectivity and security, ensuring seamless operation in an SD-WAN environment.

Why Not B:

Prisma Cloud is a distinct platform designed for cloud-native security and is not directly managed through Strata Cloud Manager or Panorama.

Why Not C:

Cortex XSIAM (Extended Security Intelligence and Automation Management) is part of the Cortex platform and is not managed by SCM or Panorama.

References from Palo Alto Networks Documentation:

Strata Cloud Manager Overview

Panorama Features and Benefits

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.

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.

North-south traffic refers to the flow of data in and out of a network, typically between internal resources and the internet. To secure this type of traffic, Palo Alto Networks recommends specific CDSS subscriptions in addition to DNS Security:

A. SaaS Security

SaaS Security is designed for monitoring and securing SaaS application usage but is not essential for handling typical north-south traffic.

B. Advanced WildFire

Advanced WildFire provides cloud-based malware analysis and sandboxing to detect and block zero-day threats. It is a critical component for securing north-south traffic against advanced malware.

C. Enterprise DLP

Enterprise DLP focuses on data loss prevention, primarily for protecting sensitive data. While important, it is not a minimum recommendation for securing north-south traffic.

D. Advanced Threat Prevention

Advanced Threat Prevention (ATP) replaces traditional IPS and provides inline detection and prevention of evasive threats in north-south traffic. It is a crucial recommendation for protecting against sophisticated threats.

E. Advanced URL Filtering

Advanced URL Filtering prevents access to malicious or harmful URLs. It complements DNS Security to provide comprehensive web protection for north-south traffic.

Key Takeaways:

Advanced WildFire, Advanced Threat Prevention, and Advanced URL Filtering are minimum recommendations for NGFWs handling north-south traffic, alongside DNS Security.

SaaS Security and Enterprise DLP, while valuable, are not minimum requirements for this use case.

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.