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

Palo Alto Networks PAN-NSA Online Questions & Answers

• Question 41:

  A company requires that all encrypted traffic from the "Accounting" department be decrypted for inspection, while all other departments remain encrypted.

  How should the analyst configure the Decryption Policy?

  A. Create a single rule with "Source Zone" set to Accounting and "Action" to Decrypt.
  B. Create a "No Decrypt" rule for all zones except Accounting.
  C. Use "User-ID" in the Decryption Policy to target only members of the Accounting group.
  D. Apply a decryption profile to the Accounting Security Policy rule.
  C. Use "User-ID" in the Decryption Policy to target only members of the Accounting group.

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: The most granular and efficient way to apply decryption to a specific department is by using User-ID within the Decryption Policy. This ensures that the policy follows the users themselves, regardless of which specific IP address or zone they are currently using.

  By selecting the "Accounting" group from the identity provider (e.g., Active Directory) in the "Source User" column, the analyst ensures that only their SSL/TLS sessions are decrypted for threat inspection. This objective balances high-security requirements for sensitive departments with the privacy expectations and performance considerations of the rest of the organization. It is a key best practice for a Network Security Analyst to use identity as the primary factor in decryption decisions, as it provides the most persistent and accurate control over the security posture.

• Question 42:

  Which type of object should be used to ensure that a Security policy rule automatically updates when a new virtual machine is spun up in a public cloud environment and assigned a specific tag?

  A. External Dynamic List (EDL)
  B. Dynamic Address Group (DAG)
  C. Static Address Group
  D. Application Filter
  B. Dynamic Address Group (DAG)

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: A Dynamic Address Group (DAG) is a powerful object type used to create agile security policies in environments where IP addresses change frequently, such as cloud-based infrastructures. Unlike a static group, where an analyst must manually add or remove IP addresses, a DAG uses tags as its membership criteria.

  In this scenario, as a new virtual machine is deployed with a specific tag (e.g., "Web-Server"), the firewall or Panorama learns the IP address associated with that tag via the XML API or a VM Information Source. The firewall then automatically populates that IP address into the DAG. Because the Security policy refers to the DAG rather than specific IPs, the rule immediately applies to the new VM without requiring a manual configuration change or a commit. This automation is a fundamental objective for analysts working in DevOps or cloud-native environments, as it ensures that security scales at the same pace as the infrastructure.

• Question 43:

  A company wants to ensure that any file uploaded to a specific cloud storage provider is immediately analyzed for malware, even if the file has never been seen before.

  Which action should be set in the WildFire Analysis Profile?

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

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: In a WildFire Analysis Profile, the primary action for unknown files is to Forward them to the WildFire cloud for sandbox analysis. Unlike a standard "block" or "allow" action, forwarding initiates a behavioral analysis to determine if the file exhibits malicious characteristics. For an analyst, the objective is to ensure that all relevant file types (PDFs, executables, etc.) are set to forward. If WildFire determines a file is malicious, it generates a new signature in as little as 5 minutes and pushes it to all firewalls globally. Some advanced implementations allow for "inline" blocking of files until the WildFire result is returned, but the fundamental configuration step for all zero-day protection is the forwarding of unknown content to the threat intelligence cloud.

• Question 44:

  A user reports that they can reach a website, but the page elements are not loading correctly. The analyst suspects that a security profile is silently dropping some of the web content.

  Which log, when filtered by the user's IP, will show the specific Content-ID match that is causing the partial page failure?

  A. Traffic Log
  B. Threat Log
  C. URL Filtering Log
  D. Data Filtering Log
  B. Threat 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 (Option A) show the initial connection success, they often lack the detail needed to diagnose why specific content within a session is failing. When a security profile-such as Anti-Spyware or Vulnerability Protection-detects a malicious or suspicious element within a web page, it triggers a Threat Log entry.

  The Threat Log provides the most granular information regarding the "Session ID" and the specific "Threat ID" that caused the action. For partial page loads, this often happens because the main HTML is allowed, but a secondary script or image is identified as a threat and blocked by the firewall. By filtering the Threat Log by the user's IP address, the analyst can identify the exact signature being triggered. This allows them to determine if the block is a valid security event or a false positive that requires a signature exception. This level of troubleshooting is a critical objective for ensuring that security does not unnecessarily impede legitimate business traffic.

• Question 45:

  Which action ensures that sensitive information such as medical records, financial transactions, and legal communications are not decrypted and that they maintain strong security?

  A. Create a log forwarding filter to exclude sensitive information.
  B. Disable decryption globally to avoid exposing sensitive data.
  C. Create an SSL Inbound Inspection policy to identify users sending sensitive information.
  D. Create a no-decrypt policy for traffic matching specific URL categories.
  D. Create a no-decrypt policy for traffic matching specific URL categories.

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: In a Palo Alto Networks environment, decryption is essential for visibility, but legal and compliance requirements often dictate that certain types of traffic-specifically those involving sensitive personal data-must remain encrypted. To comply with these regulations while still inspecting other high-risk traffic, a Network Security Analyst should create a "no-decrypt" policy for traffic matching specific URL categories (D). Palo Alto Networks provides predefined URL categories such as

  financial-services, health-and-medicine, and government. When these categories are used as matching criteria in a Decryption Policy rule with the action set to "No Decrypt," the firewall will bypass the SSL/TLS decryption process for that specific traffic. This ensures that the privacy of sensitive transactions, like medical records or banking, is maintained and that the raw data is never exposed in the firewall's memory or logs. Furthermore, to maintain "strong security" as requested, the analyst should attach a Decryption Profile to this no-decrypt rule. This profile can be configured to block sessions that use weak protocols (like SSLv3 or TLS 1.0) or expired certificates, ensuring that even if the traffic is not decrypted, it is still forced to meet modern security standards before entering or leaving the network.

• Question 46:

  A financial company is deploying NGFWs with the Advanced SD-WAN subscription to improve uptime and bandwidth across thousands of ATMs. The company requires that traffic flows to the internal application needed by the ATMs always use the path with the lowest latency and packet loss.

  Which unique SD-WAN rule parameters meet this criteria?

  A. Application/Service: "Internal Application for ATMs" # Path Selection: "Best Available Path" in Traffic Distribution Profile.
  B. Application/Service: "Internal Application for ATMs" & "Management" in Path Quality Profile # Path Selection "Any."
  C. Application/Service: "Internal Application for ATMs" # Path Selection "Weighted Distribution" in Traffic Distribution Profile.
  D. Application/Service: "Internal Application for ATMs" & "ATM Path(Custom)" in Path Quality Profile # Path Selection "Any."
  A. Application/Service: "Internal Application for ATMs" # Path Selection: "Best Available Path" in Traffic Distribution Profile.

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: Palo Alto Networks SD-WAN implementation utilizes Traffic Distribution Profiles to define how the firewall selects the optimal path for specific applications. To meet the requirement of selecting the path with the lowest latency and packet loss, the analyst must configure an SD-WAN policy rule that maps the specific application (the internal ATM app) to a distribution profile set to "Best Available Path." In this configuration, the firewall evaluates the real-time performance metrics of all available links (such as ISP1, ISP2, or LTE) based on a linked Path Quality Profile. The Path Quality Profile defines the specific thresholds for latency, jitter, and packet loss. When the "Best Available Path" selection is used, the firewall dynamically compares these metrics and steers the traffic to the interface that currently exhibits the highest quality relative to those thresholds. Option C is incorrect because Weighted Distribution is used for load sharing across multiple links based on a percentage, rather than selecting a single "best" path. Options B and D are incorrect because "Path Selection" logic is defined within the Traffic Distribution Profile, not the Path Quality Profile, and "Path

  Selection: Any" would not prioritize performance metrics. By choosing "Best Available Path," the Network Security Analyst ensures high availability and optimal performance for mission-critical financial transactions, which is a key objective in modern distributed enterprise environments.

• Question 47:

  A company wants to ensure that its internal web server is only accessible from the internet on port 443, but the server is actually listening on port 8443.

  Which NAT configuration should be used?

  A. Source NAT with Static IP translation.
  B. Destination NAT with Port Translation.
  C. Bi-directional NAT with Dynamic IP and Port.
  D. Hide NAT with Overload.
  B. Destination NAT with Port Translation.

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  Explanation

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

  443. The "Translated Packet" is then configured to redirect that traffic to the server's internal private IP on port 8443. This allows the server to remain "cloaked" on its non-standard port, while users on the internet can connect using a standard web port. This objective is critical for policy management, as it allows for flexible network design and improves security by obscuring the internal service details from external scans.

• Question 48:

  An organization uses several different web-conferencing tools (Zoom, Microsoft Teams, WebEx). The analyst wants to create a single security rule to allow all these tools without listing each App-ID individually.

  What should the analyst create?

  A. Application Filter
  B. Application Group
  C. Service Group
  D. Custom App-ID
  B. Application Group

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: To manage a specific, known set of applications, an Application Group is the most appropriate object. The analyst manually adds the specific App-IDs (Zoom, Teams, etc.) to the group and then uses that group object in the "Application" column of a security rule.

  This is distinct from an Application Filter (Option A), which dynamically groups applications based on shared characteristics like "Category: collaboration". While a filter is more automated, an Application Group provides the analyst with explicit control over which "sanctioned" apps are allowed. Using groups simplifies the rulebase, making it easier to read and audit. If the company decides to switch conferencing providers, the analyst only needs to update the single group object, and the change will automatically apply to all security rules referencing that group.

• Question 49:

  An analyst wants to find out whether a specific user is generating a large number of concurrent sessions that may be affecting firewall resources.

  Which monitoring tool gives the best real-time visibility into this condition?

  A. Threat Log
  B. Session Browser
  C. Config Audit
  D. URL Filtering Log
  B. Session Browser

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  Explanation

  Comprehensive and Detailed 150 to 250 words of Explanation From Palo Alto Networks Network Security Analyst Knowledge: Session Browser is the best tool for real-time visibility into active sessions on the firewall. It allows the analyst to filter by source IP address, user, destination, application, or other session attributes and inspect the currently active connections being processed by the data plane. This makes it highly effective when troubleshooting session-related resource concerns tied to a specific user.

  Option A is incorrect because the Threat Log records threat-related detections and actions, not the full live session table.

  Option C is incorrect because Config Audit is used for comparing changes in configuration history rather than observing runtime traffic conditions.

  Option D is incorrect because the URL Filtering Log is focused on web access categorization and actions, not current session counts.

  By using Session Browser, the analyst can determine whether the user has an unusually high number of active sessions, whether those sessions are stuck, and whether they are associated with a particular application or behavior. This is especially useful when diagnosing intermittent application issues, suspected abuse, or capacity concerns. Real-time visibility provides more immediate and actionable evidence than reviewing only historical logs, allowing faster isolation of the actual source of the problem.

• Question 50:

  A firewall administrator is creating an application override rule to bypass Layer 7 inspection for a pre-defined application.

  What is the expected behavior for Content-ID checks for this application?

  A. WildFire will only use inline-ML checks instead of sending items to WildFire Cloud.
  B. Threat inspection will occur if the pre-defined application supports threat inspection.
  C. DNS Security will have degraded performance for advanced features.
  D. No additional security checks will occur due to there being only Layer 4 handling.
  D. No additional security checks will occur due to there being only Layer 4 handling.

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  Explanation

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

  In the Palo Alto Networks environment, an Application Override rule is a specialized policy used to change how the firewall identifies and processes traffic. When an Application Override rule is triggered, the firewall skips the standard App-ID identification process (the Layer 7 signature matching) and forces the traffic to be identified as a specific, manually assigned application based on the Layer 4 criteria (Source/Destination IP and Port/Protocol). The critical consequence of using an Application Override is its impact on the Content-ID engine. Because the firewall is forced to treat the traffic as a simple Layer 4 stream without full Layer 7 context, the Content-ID engine-which is responsible for Antivirus, Anti-Spyware, Vulnerability Protection, and WildFire inspection-cannot be applied to the session. Effectively, once an application is overridden, the traffic is handled purely at the network and transport layers. As a result, no additional security checks will occur (D) for that traffic. This is why Application Overrides are typically reserved for trusted internal traffic, high-throughput applications that do not require inspection, or custom applications that might be misidentified by standard App-ID signatures. A Network Security Analyst must use this tool with caution, as it creates a "blind spot" in the security posture where threats, malware, and data exfiltration patterns will not be detected by the firewall's security profiles.