Palo Alto Networks PAN-NSA Online Practice Questions and Exam Preparation

Palo Alto Networks PAN-NSA Online Questions & Answers

• Question 81:

  DNS rewrite can only be configured on a NAT rule with which type of destination address translation?

  A. Dynamic IP and Port (DIPP)
  B. Dynamic IP (with session distribution)
  C. Static IP
  D. Dynamic IP
  C. Static IP

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: In Palo Alto Networks PAN-OS, the DNS rewrite feature (often referred to as DNS Doctoring) is specifically designed to solve the issue of split-horizon DNS in environments where internal users must access an internal server using its public IP address. This occurs when the DNS server returns the public IP address of a server to an internal client, but the client and server are on the same or related internal networks. The firewall can only perform a DNS rewrite when a Static IP destination NAT rule is in place. When this option is enabled, the firewall monitors DNS responses passing through it. If a DNS response contains an IP address that matches the "Original Destination" IP in a static NAT rule, the firewall rewrites the DNS payload to the "Translated Destination" IP (the private IP of the server). This functionality is restricted to Static IP translation because it requires a 1-to-1, predictable mapping between the public and private addresses.

  Dynamic translation types (A, B, and D) involve pools of addresses or port-overloading, which makes it impossible for the firewall to determine which specific internal IP address should be written into the DNS response at any given time. By ensuring a static mapping, the Network Security Analyst guarantees that internal clients receive the correct internal IP address to reach their destination without hair-pinning traffic unnecessarily through the public interface.

• Question 82:

  A security administrator wants to determine which action a URL Filtering profile will take on the URL "www. chatgpt.com". The firewall has a custom URL object with "www.chatgpt.com" as a member called "Permitted-AI." The URL "www.chatgpt.com" is also categorized as "Artificial-Intelligence," "Computer-and-Internet-Info," and "Low-Risk." The URL Filtering profile has the following in descending order:

  Artificial-Intelligence set to continue Computer-and-Internet-Info set to block Low-Risk set to alert Permitted-AI set to allow

  Which action will the URL Filtering profile take when traffic matches the "www.chatgpt.com" URL on a rule with this profile attached? (Choose one answer)

  A. Allow
  B. Continue
  C. Block
  D. Alert
  A. Allow

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: When a Palo Alto Networks firewall evaluates a URL against a URL Filtering profile, it follows a strict order of precedence to determine the final action. Understanding this order is essential for a Network Security Analyst to troubleshoot unexpected web access behavior.

  The firewall prioritizes URL matches in the following specific order:

  Block List: Any URL explicitly listed in the profile's block list is blocked immediately.

  Allow List: Any URL explicitly listed in the profile's allow list is permitted immediately.

  Custom URL Categories: If the URL is not in the block or allow lists, the firewall checks custom URL categories.

  Predefined URL Categories: Finally, if no higher-priority match is found, it evaluates the predefined categories (like "Artificial-Intelligence" or "Low-Risk"). In this scenario, "Permitted-AI" is a custom URL object (Custom Category) containing "www.chatgpt.com". Even though the predefined category "Artificial-Intelligence" appears higher in the list provided in the question and is set to "continue," custom URL categories take precedence over predefined ones in the processing logic. Therefore, the firewall identifies the match for the custom category "Permitted-AI," which is explicitly set to "allow". This match triggers an immediate "Allow" action, bypassing the "continue," "block," or "alert" actions associated with the

  lower-priority predefined categories.

• Question 83:

  Which log type is most useful when determining whether a firewall blocked an HTTPS session because of a certificate issue encountered during decryption?

  A. System Log
  B. URL Filtering Log
  C. Decryption Log
  D. Authentication Log
  C. Decryption Log

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: The Decryption Log is the best source when troubleshooting certificate-related failures during decryption. It records the reasons a decrypted session was blocked or failed, including issues such as expired certificates, untrusted issuers, or name mismatches. This makes it the most direct log for confirming whether the problem lies with the remote server certificate or with the firewall's decryption policy and profile.

  Option A is incorrect because the System Log contains platform and administrative events, not the specific certificate-evaluation results tied to a user's traffic session.

  Option B is incorrect because URL Filtering Log entries focus on URL categories and web access actions rather than certificate validation outcomes.

  Option D is incorrect because Authentication Log entries relate to authentication workflows and not SSL/TLS decryption errors.

  For a Network Security Analyst, the ability to distinguish between a policy-based block and a certificate validation failure is important for rapid troubleshooting. A user may simply report that a website is unreachable, but the Decryption Log reveals whether the real issue is the external site's certificate hygiene. This supports faster resolution and better decision-making about whether to allow, block, or exempt traffic appropriately.

• Question 84:

  When using Strata Cloud Manager (SCM), which tool allows an analyst to automatically migrate local firewall configurations to a centralized management folder?

  A. Strata Cloud Manager Transition
  B. Policy Optimizer
  C. Config Audit
  D. Template Variable
  A. Strata Cloud Manager Transition

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: The Strata Cloud Manager Transition tool is specifically designed to facilitate the migration of local, standalone firewall configurations into the SCM centralized management framework. This is a critical workflow for analysts moving toward a "unified management" model. The tool analyzes the existing local configuration-including objects, policies, and network settings-and maps them to the appropriate Folders and Snippets within SCM. This ensures that the local "Source of Truth" is successfully shifted to the cloud management plane without losing granular security settings. During this process, the analyst can identify and resolve naming conflicts or redundant objects, cleaning up the configuration as it is centralized.

  Transitioning firewalls into SCM is a key objective as it unlocks AI-powered monitoring, centralized auditing, and simplified lifecycle management across the entire global estate.

• Question 85:

  An analyst notices latency on the firewall and wants to improve performance.

  Which steps can be taken to reduce management plane CPU while working to determine the underlying problem?

  A. Enable log forwarding from the firewall to an external destination.
  B. Disable log at session end and only log at session start.
  C. Enable logging for intrazone-default and interzone-default security rules.
  D. Disable log at session start and only log at session end.
  D. Disable log at session start and only log at session end.

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge:

  The Management Plane (MP) of a Palo Alto Networks firewall is responsible for administrative tasks, including logging and reporting. High MP CPU usage can often lead to latency in the web interface and delays in processing management tasks. One of the most common causes of excessive MP load is a high volume of log generation, particularly when "Log at Session Start" is enabled. By default, Palo Alto Networks firewalls are configured to "Log at Session End," which captures the complete session details (such as total bytes transferred) in a single log entry. If "Log at Session Start" is also enabled, the firewall must generate two logs for every single session-doubling the resources required by the logrcvr process on the management plane. Therefore, to immediately reduce MP CPU load without losing essential forensic data, an analyst should disable log at session start and ensure that only log at session end is active for critical rules. Options

  A and C would actually increase the CPU load by adding more logging or external processing tasks. Maintaining logging only at the end of a session is a standard troubleshooting step to stabilize a stressed management plane while investigating the root cause of network latency.

• Question 86:

  Which log type is the most useful for identifying if a user is repeatedly attempting to visit an "Unauthorized" website category that is being blocked by a security profile?

  A. Traffic Log
  B. URL Filtering Log
  C. System Log
  D. Authentication Log
  B. URL Filtering Log

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: While Traffic Logs show that a connection was denied, the URL Filtering Log provides the specific context required to understand why it was denied. It explicitly lists the URL being visited, the specific URL category (e.g., adult or gambling), and the action taken by the profile. For a Network Security Analyst, monitoring this log is a core objective for identifying potential "insider threats" or users who require additional security training. If a host is generating hundreds of "block" entries for high-risk categories in a short period, it could indicate that the device is infected with malware that is attempting to "call home" to a malicious site or that a user is actively trying to bypass security controls.

• Question 87:

  An analyst determines that several sanctioned, predefined applications are being intermittently blocked, even though there is an existing policy permitting them. An investigation reveals that the applications are using non-standard ports, which is causing them to be blocked. The applications are critical for business operations, and the analyst has approval to allow them.

  Which configuration adjustment should be implemented to ensure secure access to the applications?

  A. Apply Disable Server Response Inspection (DSRI) to the existing Security policy to allow the non-standard ports.
  B. Disable App-ID and port filtering and rely solely on IP addresses of the applications to allow the non-standard ports.
  C. Clone the existing Security policy rule and include the non-standard ports under services.
  D. Clone the existing Security policy rule and include unknown-tcp and unknown-udp applications with service set to "any"
  C. Clone the existing Security policy rule and include the non-standard ports under services.

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: In Palo Alto Networks PAN-OS, the "application-default" setting in a security policy rule ensures that an application is only allowed on its standard, well-known ports. If a sanctioned application (such as a custom internal tool or a specific SaaS app) is configured to use a non-standard port, the firewall will identify the application via App-ID but will drop the traffic because the port does not match the application's default definition. To resolve this securely, the most granular and best-practice approach is to clone the existing rule and explicitly define the non-standard ports in the Service column. By specifying the application (e.g., web-browsing) and a custom Service object (e.g., TCP/8088), the analyst ensures that only that specific application is allowed on that specific port. This maintains the security benefit of App-ID inspection-ensuring that only the sanctioned application is traversing the port-rather than simply opening the port to "any" traffic.

  Option B is incorrect as it negates the value of the Next-Generation Firewall.

  Option D is highly insecure as it allows unidentified ("unknown") traffic, which is a significant security risk.

  Option A (DSRI) is a performance optimization tool and does not resolve port-mismatch blocking.

• Question 88:

  A security team wants to dynamically block all newly discovered applications that Palo Alto Networks classifies as high risk and file-transfer capable, without manually updating a list each time.

  Which object type should be used?

  A. Application Group
  B. Application Filter
  C. Custom URL Category
  D. Service Group
  B. Application Filter

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: An Application Filter is the correct object because it dynamically groups applications based on matching criteria such as risk, category, subcategory, and characteristics. In this case, the analyst can define filter logic that matches applications classified as high risk and capable of file transfer, and the firewall will automatically include any new App-IDs that meet those conditions as content updates are installed.

  Option A is incorrect because an Application Group is static and requires the administrator to manually add or remove specific applications. That approach does not scale well in environments where new cloud services and applications appear regularly.

  Option C is incorrect because a Custom URL Category is used for URL-based matching, not App-ID-based application grouping.

  Option D is incorrect because a Service Group only groups Layer 4 protocol and port definitions.

  For a Network Security Analyst, using an Application Filter improves scalability and reduces administrative effort. It ensures that policy logic remains aligned with evolving App-ID intelligence without requiring constant manual maintenance.

  This is especially valuable in modern environments where unsanctioned or risky cloud applications can appear quickly. Dynamic application control helps preserve a current and proactive policy posture.

• Question 89:

  Beyond being a SaaS-based delivery platform, what is an advantage of Strata Cloud Manager (SCM) over Panorama? (Choose one answer)

  A. Live, inline best practice checks
  B. Real-time alerting
  C. Customizable dashboards
  D. NGFW and Prisma Access management
  A. Live, inline best practice checks

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: While Panorama has been the traditional standard for centralized management of Palo Alto Networks firewalls, Strata Cloud Manager (SCM) introduces significant AI-driven advancements that differentiate it from the legacy on-premises or virtual appliance management. A primary technical advantage of SCM over Panorama is the inclusion of Live, inline best practice checks. In a typical Panorama environment, evaluating security rules against Palo Alto Networks best practices often requires running a separate Best Practice Assessment (BPA) tool or utilizing a specific plugin after a configuration has been drafted. SCM, however, integrates these checks directly into the configuration workflow. As an analyst creates or modifies a security policy, SCM provides real-time, "inline" feedback. This ensures that the rule adheres to security standards-such as avoiding overly permissive rules, ensuring correct security profile application, or following naming conventions-before the configuration is even committed. This proactive approach reduces the likelihood of human error and significantly lowers the organizational risk profile by maintaining a standardized security posture across both hardware and cloud-based firewalls. While Panorama can manage both NGFW and Prisma Access (Option D) and offers customizable dashboards (Option C), the "live, inline" nature of security guidance is a unique capability of SCM's AI-powered management framework.

• Question 90:

  A company wants to ensure that all internal users are prevented from uploading sensitive documents to a specific personal cloud storage site.

  Which Security profile is specifically designed to inspect the content of file transfers for specific data patterns?

  A. File Blocking Profile
  B. Vulnerability Protection Profile
  C. Data Filtering Profile
  D. WildFire Analysis Profile
  C. Data Filtering Profile

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: While a File Blocking Profile (Option A) can block files based on their type (e.g., preventing any.docx upload), it does not look at the information within the file. The Data Filtering Profile is the tool designed for Data Loss Prevention (DLP). An analyst uses Data Filtering to scan file uploads and downloads for specific sensitive patterns, such as credit card numbers, Social Security numbers, or custom regex patterns (like internal project IDs). By attaching this profile to a security rule that allows access to the cloud storage application, the firewall can permit the use of the app while specifically blocking any session that contains unauthorized data. This provides a granular layer of security that protects intellectual property and ensures regulatory compliance without completely disabling the business applications users need to perform their jobs.