Palo Alto Networks PCNSE Palo Alto Networks Certified Security Engineer PAN-OS 11.0 Exam Practice Test

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Total 334 questions
Question 1

Certain services in a customer implementation are not working, including Palo Alto Networks Dynamic version updates. Which CLI command can the firewall administrator use to verify if the service routes were correctly installed and that they are active in the Management Plane?



Answer : C

When troubleshooting Palo Alto Networks services, such as dynamic updates, verifying the status of service routes is critical. Service routes determine how the firewall communicates with external services (e.g., Palo Alto Networks update servers, WildFire, DNS, etc.) from the Management Plane or data plane interfaces.

Why 'debug dataplane internal vif route 250' is Correct

Purpose of the Command:

This command allows administrators to view the service routes configured on the firewall and verify if they are installed correctly and actively working.

The number 250 specifically refers to service routes in the Management Plane.

Output:

The command displays detailed information about service routes, including routing decisions, source interfaces, and next-hop IPs.

Helps identify issues such as:

Incorrect interface configuration.

Invalid next-hop IPs.

Missing routes for specific services.

Analysis of Other Options

debug dataplane internal vif route 255

Incorrect:

The number 255 does not correspond to service routes but is used for internal route debugging unrelated to management plane service routes.

show routing route type management

Incorrect:

This command does not exist in PAN-OS CLI. It might be a misrepresentation of another command.

debug dataplane internal vif route 250

Correct:

As explained above, this is the correct command for verifying service routes in the Management Plane.

show routing route type service-route

Incorrect:

This is not a valid PAN-OS CLI command.

PAN-OS Documentation Reference

Service Routes in PAN-OS 11.0:

The configuration and verification of service routes are covered under the Device > Setup > Services section of the GUI.

For CLI, the debug dataplane internal vif route 250 command is specifically used for troubleshooting service routes in the Management Plane.

For more details, refer to:

PAN-OS 11.0 CLI Guide: Covers debugging tools and service route verification.

PCNSA Study Guide: Domain 1 includes service route configurations and their importance in maintaining connectivity for management services.


Question 2

An internal audit team has requested additional information to be included inside traffic logs forwarded from Palo Alto Networks firewalls to an internal syslog server.

Where can the firewall engineer define the data to be added into each forwarded log?



Answer : A

To facilitate the integration with external log parsing systems, the firewall allows you to customize the log format; it also allows you to add custom Key: Value attribute pairs. Custom message formats can be configured under DeviceServer ProfilesSyslogSyslog Server ProfileCustom Log Format. https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-admin/monitoring/use-syslog-for-monitoring/syslog-field-descriptions/custom-logevent-format

Step-by-Step Explanation:

Understanding Log Forwarding in PAN-OS:

Palo Alto Networks firewalls allow forwarding logs to external systems like syslog servers, SNMP servers, or email systems for external analysis or compliance.

Traffic logs can be customized to include additional information that meets the audit or operational requirements.

Syslog Server Profiles:

Syslog Server Profiles specify the format and destination of the log data sent to the syslog server.

These profiles allow customization through the Custom Log Format option, where the firewall engineer can add or modify log fields (e.g., source address, destination address, URL category).

Custom Log Format:

Navigate to Device > Server Profiles > Syslog.

Within the Syslog Server Profile, define a Custom Log Format for traffic logs.

Using this feature, the engineer can include additional fields requested by the internal audit team, such as threat severity, application details, or user ID.

Field Specification:

In the Custom Log Format, fields are defined using variables corresponding to the log fields in PAN-OS.

Example:

$receive_time,$src,$dst,$app,$action,$rule

The engineer can include specific details as requested by the audit team.

Comparison of Other Options:

Option B: Built-in Actions within Objects > Log Forwarding Profile

Log Forwarding Profiles are used to specify what logs are forwarded based on security policy matches. However, they do not control the format of logs.

Log Forwarding Profiles define actions (e.g., forwarding to syslog, SNMP), but customization of log data happens within Syslog Server Profiles.

Option C: Logging and Reporting Settings within Device > Setup > Management

These settings control general logging behavior and settings but do not allow customization of log data for syslog forwarding.

Option D: Data Patterns within Objects > Custom Objects

Data Patterns are used for identifying sensitive data or patterns in data filtering. They are unrelated to log customization.

Why A is Correct?

The Custom Log Format under Device > Server Profiles > Syslog is the only place where additional information can be defined and added to forwarded traffic logs.

This flexibility allows the firewall engineer to meet specific compliance or audit requirements.

Documentation Reference:

PCNSA Study Guide: Logging and Monitoring section discusses Syslog Server Profiles and log forwarding configurations.

PAN-OS Admin Guide: Covers Custom Log Format configuration under the Syslog Server Profile.


Question 3

A customer would like to support Apple Bonjour in their environment for ease of configuration.

Which type of interface in needed on their PA-3200 Series firewall to enable Bonjour Reflector in a segmented network?



Answer : D


Question 4

An organization has recently migrated its infrastructure and configuration to NGFWs, for which Panorama manages the devices. The organization is coming from a L2-L4 firewall vendor, but wants to use App-ID while identifying policies that are no longer needed.

Which Panorama tool can provide a solution?



Answer : B


Question 5

An engineer is configuring secure web access (HTTPS) to a Palo Alto Networks firewall for management.

Which profile should be configured to ensure that management access via web browsers is encrypted with a trusted certificate?



Answer : A


Question 6

Certain services in a customer implementation are not working, including Palo Alto Networks Dynamic version updates.

Which CLI command can the firewall administrator use to verify if the service routes were correctly installed and that they are active in the Management Plane?



Answer : B


Question 7

An administrator is troubleshooting application traffic that has a valid business use case, and observes the following decryption log message: "Received fatal alert UnknownCA from client."

How should the administrator remediate this issue?



Answer : C


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