Palo Alto Networks PCNSE Practice Test - Questions Answers, Page 27

A service route is the path from the interface to the service on a server. By default, the firewall uses the management interface to communicate to various servers, including DNS, Email, Palo Alto

Updates, User-ID agent, Syslog, Panorama, dynamic updates, URL updates, licenses, and AutoFocus.

etc. Sometimes, it is necessary to use an alternative path other than Firewall management IP due to many restrictions. To configure service routes for non-predefined services, the destination addresses can be manually entered in the Destination section under Device > Setup > Services > Service Route Configuration > Customize1. Option A is incorrect because it is used to configure static routes for network traffic, not service routes for firewall services. Option B is incorrect because it is used to configure general service settings such as NTP server and proxy server, not service routes for specific destinations. Option D is incorrect because it is used to configure service routes for predefined services such as DNS and Syslog, not service routes for non-predefined services2.

Template variables are placeholders that you can use in a template or a template stack to represent values that differ across firewalls, such as IP addresses, hostnames, or interface names. Template variables allow you to create a single network configuration that can be reused repeatedly for largescale deployments even if values of configured objects change1. Option A is incorrect because template stacks are used to group multiple templates together and apply them to firewalls or device groups. Template stacks do not allow you to use variables for different values2. Option C is incorrect because the Shared device group is used to push policies and objects that are common across all firewalls managed by Panoram a. The Shared device group does not allow you to use variables for different values3. Option D is incorrect because a device group is used to group firewalls that require similar policies and objects. A device group does not allow you to use variables for different values3.

A TAP interface is a dedicated interface on the firewall that can be connected to a switch SPAN or mirror port to passively monitor traffic flows across a network. A TAP interface provides application visibility and threat detection without being in the flow of network traffic. A TAP interface does not require any IP changes or service interruptions on the network segment1. Option B is incorrect because vwire interfaces are used to create virtual wires that transparently connect two network segments. Vwire interfaces require physical cabling changes and may cause service interruptions on the network segment2. Option C is incorrect because a Layer 3 interface is used to route traffic between different subnets. A Layer 3 interface requires IP changes and may cause service interruptions on the network segment2. Option D is incorrect because a new vsys is used to create a virtual system that can have its own set of policies and objects. A new vsys does not provide visibility or security for a specific network segment3.

Forwarding logs from firewalls only to Panorama and having Panorama forward logs to other external services is the best option for the administrator to reduce WAN traffic while maintaining support for all the existing monitoring/security platforms. This option minimizes the number of log forwarding destinations on each firewall and consolidates log forwarding on Panoram a. Panorama can forward logs to external destinations such as syslog servers, email servers, SNMP trap receivers, HTTP servers, or AutoFocus1. Option B is incorrect because configuring log compression and optimization features on all remote firewalls may reduce the size of log files but does not reduce the number of log forwarding destinations. Option C is incorrect because any configuration on an M-500 would not address the insufficient bandwidth concerns. An M-500 is a dedicated log collector that can store logs from multiple firewalls and Panorama appliances. However, it does not reduce the WAN traffic generated by log forwarding2. Option D is incorrect because forwarding logs from external sources to Panorama for correlation, and from Panorama send them to the NGFW does not reduce WAN traffic while maintaining support for all the existing monitoring/security platforms. This option would increase the WAN traffic by sending logs back and forth between Panorama and the NGFW1.

The best option for the ISP to configure unique service routes for different tenants is to use the Setup > Services > Virtual Systems > Set Location > Service Route Configuration > Customize option on the firewall. This option allows the ISP to customize the service routes for each virtual system that represents a tenant. A service route is the path from the interface to the service on a server, such as DNS, email, or Panorama. By customizing the service routes for each virtual system, the ISP can ensure that each tenant uses a different interface or IP address to access these services1. Option A is incorrect because it is used to inherit the global service route configuration for a virtual system, not to customize it.

Option B is incorrect because it is used to customize the global service route configuration for all virtual systems, not for a specific one. Option D is incorrect because it is used to use the management interface for all service routes, not to customize them1.

The compare option for a specific rule in the New App Viewer under Policy Optimizer allows an administrator to compare the applications configured in the rule with the applications seen from traffic matching the same rule. This option helps the administrator to identify any discrepancies between the intended and actual applications allowed by the rule. The administrator can then optimize the rule by adding or removing applications as needed1. Option A is incorrect because the compare option does not compare the running configuration with the candidate configuration of the firewall. That is done by using the Commit > Commit and Push option2. Option B is incorrect because the compare option does not compare applications configured in the rule with their dependencies. That is done by using the App Dependencies tab under Policy Optimizer1. Option D is incorrect because the compare option does not compare the security rule with any other security rule selected. That is done by using the Compare Rules option under Policies > Security3.

The destination zone in the NAT rule is determined after the route lookup of the destination IP address in the original packet (that is, the pre-NAT destination IP address).

https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-networking-admin/nat/nat-configurationexamples/destination-nat-exampleone-to-one-mapping

The NAT rule destination zone should be set to the zone where the traffic is destined before NAT. In this case, the traffic from the internet is destined to the pre-NAT IP address of the server, which is 153.6.12.10. This IP address belongs to the Outside zone, as shown in the routing and interfaces information. Therefore, the NAT rule destination zone should be set to Outside. The other options are not correct. None is not a valid option for the NAT rule destination zone. Inside and DMZ are the zones where the traffic is destined after NAT, which is 192.168.10.10. Reference: :

https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/networking/nat/source-anddestination-nat/configure-destination-nat

The default class that is assigned to traffic that does not match any QoS classes is class 4. Class 4 is the default class for any session not matched to a QoS policy. QoS policy, like security policy, is processed top to bottom and the first policy match will be applied. If no policy match is found, the traffic is assigned to class 412. Option A is incorrect because class 1 is not the default class for unmatched traffic. Class 1 is a user-defined class that can be used to assign traffic based on QoS policy criteria. Option B is incorrect because class 2 is not the default class for unmatched traffic. Class 2 is a userdefined class that can be used to assign traffic based on QoS policy criteria. Option C is incorrect because class 3 is not the default class for unmatched traffic. Class 3 is a user-defined class that can be used to assign traffic based on QoS policy criteria3.