Pass the Paloalto Networks Network Security Administrator SSE-Engineer Questions and answers with CertsForce

When implementingAI Access Security,tagsare applied toGenerative AI applicationsto classify them assanctioned, tolerated, or unsanctioned. This allows organizations to enforcepolicy-based access controlover AI tools, ensuring that onlyapproved applicationsare accessible while restricting or monitoring usage ofuntrusted or high-risk AI platforms. This classification helps security teamsmanage AI-related risks and complianceeffectively.

In Prisma Access's default routing mode, the service connections establish BGP sessions with the customer premises equipment (CPE) in the data centers. To ensure traffic destined for mobile users in a specific region (e.g., North America) traverses the service connection in that same region, you need to control the route advertisements.

Filtering out the mobile user pool prefixes from the other region on each service connection achieves this by:

Preventing the data center in one region from learning the specific mobile user prefixes of the other region.For example, the North American service connection would filter out the mobile user pool prefixes allocated to European users.

Ensuring that when a data center needs to send traffic to a mobile user, it will only see and use the route advertised by the service connection in the appropriate geographical region.This forces the traffic to enter the Prisma Access infrastructure through the intended regional service connection.

Let's analyze why the other options are incorrect based on official documentation regarding default routing mode:

A. Configure BGP on the customer premises equipment (CPE) to prefer the assigned community string attribute on the mobile user prefixes in its respective Prisma Access region.While BGP communities can be used for influencing routing decisions, in the context ofdefault routing modeand ensuring regional traffic flow, relying solely on the CPE to prefer community strings might not be the most robust or direct method to guarantee traffic traverses the correct regional service connection. The service connection itself needs to control the advertisement of prefixes.

C. Configure BGP on the customer premises equipment (CPE) to prefer the MED attribute on the mobile user prefixes in its respective Prisma Access region.The BGP MED (Multi-Exit Discriminator) attribute is primarily used to influence the path selectionbetweenautonomous systems (AS) or within the same AS at different entry points. In this scenario, where serviceconnections are advertising prefixes, filtering at the source (service connection) is a more direct and reliable way to ensure regional traffic flow than relying on the MED attribute on the CPE.

D. Configure each service connection to prepend the BGP ASN five times for mobile user pool prefixes originating from the other region.BGP AS path prepending is a mechanism to make a path less desirable. While this could influence routing, it doesn't guarantee that traffic will always take the intended regional path. Filtering provides a more definitive control over which routes are advertised and learned.

Therefore, configuring each service connection to filter out the mobile user pool prefixes from the other region in the advertisements to the data center is the verified method to ensure traffic destined for mobile users traverses the service connection in the appropriate region when using Prisma Access in default routing mode.

InPrisma Access, security policies are evaluated based on theirconfiguration scope. If the engineer configured aSecurity policyunder theRemote Networks scope, but traffic from the branch locations is instead matching aSecurity policy under the Prisma Access configuration scope, the intended policy will not take effect. This happens becausePrisma Access evaluates security rules based on the highest-level applicable configuration first, which can override more specific Remote Networks policies.

SincePhase 1 of the IPSec tunnel is establishedbutPhase 2 traffic is not being received, theTunnel logsinStrata Logging Serviceshould be reviewed.Tunnel logsprovide visibility into IPSec tunnel establishment,Phase 2 negotiation, and any errors or dropped packets related to encrypted traffic. This will help identify whetherESP (Encapsulating Security Payload) traffic is being blocked, mismatched security associations (SAs) exist, or if there are other issues with Prisma Access responding to Phase 2-encrypted packets.

Palo Alto Networks documentation explicitly states that the"Preview Changes"functionality within the Strata Cloud Manager (SCM) push dialogue allows engineers to review a detailed summary of all modifications that will be applied to the Prisma Access configuration before committing the changes. This is the primary and most reliable method to ensure only the intended changes are deployed.

Let's analyze why the other options are incorrect based on official documentation:

A. Review the SCM portal for blue circular indicators next to each configuration menu item and ensure only the intended areas of configuration have this indicator.While blue circular indicators might signify unsaved changes within a specific configuration section, they do not provide a comprehensive, consolidated view ofallpending changes across different policy areas. This method is insufficient for verifying the entirety of the intended modifications.

B. Compare the candidate configuration and the most recent version under "Config Version Snapshots".While comparing configuration snapshots is a valuable method for understanding historical changes and potentially identifying unintended deviationsaftera push, it does not provide a real-time preview of thependingchanges before they are applied during the current modification session

C. Select the most recent job under Operations > Push Status to view the pending changes that would apply to Prisma Access.The "Push Status" section primarily displays the status anddetails ofcompletedorin-progresspush operations. It does not offer a preview of the changesbeforea push is initiated.

Therefore, the "Preview Changes" feature within the push dialogue is the documented and recommended method for an engineer to verify that only the intended changes will be applied when modifying Prisma Access policy configuration in Strata Cloud Manager (SCM).

To meet the customer’s requirements, two separate Prisma Access instances should be deployed:

Instance 1should includemobile users, remote networks, and private accessfor internal connectivity. This ensures that mobile users can access the internet, data centers, and remote branch locations while enforcing security policies.

Instance 2should be configured withremote networks and private application accessfor B2B connections. This instance will restrict access to only the required internally developed applications using non-standard ports, ensuring that partners cannot access other corporate resources.

By usingspecific configuration scopes for different connection types, the security team can manage access to mobile users and branch locations, while the network team can manage B2B partner connections. This ensuresproper segmentation of management responsibilitieswhile maintaining security and compliance.

The error messages indicate that Prisma Access is encountering certificate issues while attempting to decrypt traffic to "google.com." This suggests that theserver has pinned certificates, meaning it does not allow man-in-the-middle (MITM) decryption by Prisma Access. Since pinned certificates prevent traffic decryption, a solution is tocreate a "do not decrypt" rule for the hostname "google.com."This will allow traffic to flow without triggering certificate errors while maintaining secure communication with Google's servers.

Prisma Access applies security rules in a hierarchical order, where rules at higher levels take precedence over those at lower levels. If a more permissive rule is placed higher in the hierarchy, it may allow traffic before the restrictive Web Security rule is evaluated. To resolve this, the engineer shouldreorder the rules to ensure the restrictive Web Security rule is positioned higher in the hierarchyso it is applied before any broader or conflicting rules.

When a large branch office experiences a high volume of employees logging in within a short time frame, the following apply:

Maximum pending TCP DNS requests is 64– This means that Prisma Access can queue up to 64 pending DNS requests over TCP before dropping additional requests. If more requests are received simultaneously, some may fail or experience delays.

Maximum number of TCP DNS retries is 3– If a DNS request fails over TCP, Prisma Access will attempt to retry the request up to three times before failing over to another method or returning an error.

By usingsecurity checks under posture settingsinStrata Cloud Manager (SCM), the senior engineer can enforcepolicy compliance standardsbyautomatically denyingany security policy that does notalign with best practices. This ensures that junior engineers can create policies while preventing configurations that might introduce security gaps. This proactive approacheliminates manual oversightand enforces compliance at the time of policy creation, reducing risk and ensuring consistent security enforcement.