SSE-Engineer Palo Alto Networks Security Service Edge Engineer Question and Answers

AZTNA Connectorrequires astable and direct connectionto thecloud gateway. When the connector is deployed behind adouble NAT (Network Address Translation), it can cause issues withreachability and session establishmentbecause the cloud gateway may not be able to properly identify and communicate with the connector. Double NAT can interfere withsecure tunneling, IP address resolution, and authentication mechanisms, leading toconnection failures. To resolve this, the connector should be placed in a network segment witha single NAT or a public IP assignment.

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.

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.

Updating theCloud Services plugininPrisma Accessdoes not disrupt existing traffic flows because the upgrade process is designed to beseamless and transparent. Prisma Access ensures high availability by maintainingactive sessions and policieswhile applying the update in the background. This allows ongoing connections to continue without interruptions, minimizing impact on user experience.

After configuringdomain-based split tunnelingforzoom.us, the expected behavior can be confirmed by checking therouting table on the client machine. If split tunneling is correctly configured, the traffic forzoom.usshould be routedoutsidethe GlobalProtect VPN tunnel, while other traffic follows the tunnel path. Reviewing the routing table ensures thatonly the intended traffic is excluded from the tunnel, confirming that the split tunnel configuration is working as expected.

To enable App Acceleration for SaaS applications in Prisma Access, the following configurations must be enabled:

Trusted Root CA for the CA certificate ensures that Prisma Access can validate and trust the SaaS application's certificates, allowing seamless inspection and acceleration of traffic without security warnings.

Forward Trust Certificate for the CA certificate enables SSL decryption for SaaS applications, allowing Prisma Access to optimize traffic and apply acceleration techniques while maintaining security policies.

To meet the customer’s requirements,GlobalProtect and Remote Networksshould be used as follows:

GlobalProtect: This enables secure access for mobile users, ensuring internet filtering, data center connectivity, and access to branch locations.

Remote Networks: This is used to provide security and connectivity for branch locations, ensuring internet filtering and data center access.

Service Connections: These allow both mobile users and branch locations to securely connect to the data center for internal resources.

This configuration ensures that mobile users and branch locations can securely access the internet while maintaining asegregated and secureconnection to internal resources. It also aligns with Prisma Access's best practices forsecurity enforcement, traffic filtering, and centralized management.

InPrisma Access, configuring anotification profileallows engineers to receive alerts when IPSec tunnels experience downtime or instability. By definingspecific conditions for remote network IPSec tunnels, the notification profile ensures that the engineer is proactively informed abouttunnel failures, flapping, or degraded performance. This approach enables timely troubleshooting and minimizes disruptions for users relying on the IPSec tunnels.

When onboarding toPrisma Access, usingDedicated IP addresseshelps address concerns about the time required to updateSaaS-allowed IP lists. Withdedicated egress IPs, the customer receivesfixed, predictable IP addressesthat do not change dynamically. This eliminates the need to frequently updateSaaS providers' allowlists, ensuring seamless access to cloud applications without interruptions due to IP address changes.

Palo Alto Networks documentation clearly states that when configuring the traffic replication feature in Prisma Access, you mustspecify an internal security applianceas the destination for the mirrored traffic. This appliance, typically a Palo Alto Networks next-generation firewall or a third-party security tool, is responsible for receiving and analyzing the replicated traffic for various purposes like threat analysis, troubleshooting, or compliance monitoring.

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

B. Dedicated cloud storage location:While Prisma Access logs and other data might be stored in the cloud, themirrored trafficfor real-time analysis is directly streamed to a designated security appliance, not a passive storage location.

C. Panorama:Panorama is the centralized management system for Palo Alto Networks firewalls. While Panorama can receive logs and manage the configuration of Prisma Access, it is not the direct destination for real-time mirrored traffic intended for immediate analysis.  

D. Strata Cloud Manager (SCM):Strata Cloud Manager is the platform used to configure and manage Prisma Access. It facilitates the setup of traffic replication, including specifying the destination appliance, but it does not directly receive or analyze the mirrored traffic itself.  

Therefore, the mirrored traffic from the traffic replication feature in Prisma Access is directed to a specified internal security appliance for analysis.

This option ensures thatSSL Decryptionchecks for mismatches between theServer Name Indication (SNI) fieldin the TLS handshake and theCommon Name (CN) or Subject Alternative Name (SAN) in the server certificate. If a malicious user tries to bypass content filtering by spoofing theSNI while using the real blocked website in the HTTP host header, this setting will detect the discrepancy andblock the session, preventing unauthorized access.

TheSASE Health Dashboardprovides visibility intouser and group synchronizationbetween theCloud Identity Engine and the Security Processing Nodes (SPNs). It allows administrators to verifywhether a group from the Cloud Identity Engine is properly fetched and available on the SPN for policy enforcement. This feature helps in troubleshooting identity-based access control issues and ensures thatuser group mappings are correctly applied within Prisma Access.