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Palo Alto Networks Network Security Analyst Sample Questions:

1. A large-scale smart city deployment includes thousands of IoT devices, ranging from smart streetlights to environmental sensors and traffic cameras. The security architect needs to design a scalable and flexible IoT security policy framework on Palo Alto Networks NGFWs, considering future growth and varying security requirements for different device types. Which of the following design principles and configurations are crucial for achieving this scalability and flexibility? (Multiple Response)

A) Integrate with a dedicated IoT security platform (e.g., IoT Security by Palo Alto Networks) for enhanced device visibility, behavioral analytics, and automated policy recommendations that feed into the NGFW.
B) Define custom 'Application Objects' for every unique IoT device communication pattern, and create one-to-one security rules for each device and its application.
C) Utilize 'IoT Device Groups' extensively, categorizing devices by type (e.g., 'Streetlight-IoT', 'Traffic-Camera-loT') and applying distinct 'IoT Security Profiles' and security policies to each group, rather than individual IPs.
D) Implement a hierarchical policy structure, with general 'Allow' rules for common IoT services at the top, followed by more specific 'Deny' rules for known threats or restricted applications at the bottom.
E) Leverage 'Policy Based Forwarding (PBF)' to direct IoT traffic to different security zones based on device vendor, allowing for vendor-specific security profiles.

2. During a breach investigation, a Network Security Analyst needs to retroactively search for specific malicious file hashes (MD5) that might have been downloaded or uploaded through the firewall within the last 30 days. These hashes were not known at the time of the initial traffic. The Incidents and Alerts page currently shows no alerts related to these hashes. Which of the following approaches is the MOST efficient and effective to perform this retrospective analysis using Palo Alto Networks tools, including Log Viewer and potentially other integrated services?

A) Leverage Cortex Data Lake (CDL) via the Log Viewer interface. Construct a highly specific query that targets 'threat' logs of 'file' type, including a filter for 'file- digest in ()'. This will provide historical matches efficiently.
B) Use the 'Threat Log' filter in the Log Viewer, specifically looking for 'file' type threats. Then, manually inspect the 'File Digest' column for each log entry and compare it against the known malicious hashes.
C) Export all 'data' logs from the Log Viewer for the last 30 days and use a custom script to parse them for the MD5 hashes. This is the only way as the firewall does not store hashes.
D) Go to the 'Monitor > Logs > URL Filtering' page and filter by destination URL to see if any known malicious domains associated with the hashes were accessed.
E) Upload the malicious hashes to the WildFire analysis cloud and request a re-scan of historical files. WildFire will then automatically generate alerts on the Incidents and Alerts page if matches are found.

3. An organization relies heavily on cloud applications. Due to compliance requirements, they must log all successful and unsuccessful login attempts to sensitive cloud applications, including the user, application, and source IP. Additionally, they need to generate real- time alerts for any failed login attempts exceeding a threshold (e.g., 3 failed attempts within 5 minutes) from a single source IP to a sensitive application. How would you configure Palo Alto Networks firewall logs and profiles to meet these requirements?

A) Enable 'Log at Session Start' for the security policy. Create a custom 'Log Forwarding Profile' to send all traffic logs to an external SIEM. Configure the SIEM to generate alerts based on failed authentication events and thresholds.
B) Enable 'Log at Session End' on the security policy for the sensitive applications. Configure an 'Alert Log' setting in the 'Monitor' tab for 'authentication-failed' messages with a threshold.
C) Enable 'SSL Decryption' for all cloud application traffic. Configure a 'Vulnerability Protection' profile with a custom signature to detect failed login attempts and set the action to 'alert'.
D) Set the security policy 'Action' to 'Deny' for sensitive applications, which will automatically log failed attempts. Use an 'External Dynamic List' for sensitive application URLs and link it to a 'URL Filtering' profile that generates alerts on block actions.
E) For the security policy governing sensitive cloud applications, set 'Log at Session End'. Create a 'Log Forwarding Profile' to forward 'Authentication' logs to the Panorama management server. On Panorama, configure a 'Managed Log Forwarding Profile' with an 'Email' alert for 'authentication-failed' events, and enable 'Alerting on Repeated Failures' with the specified threshold and timeframe.

4. A managed security service provider (MSSP) uses Strata Cloud Manager (SCM) to deliver security services to multiple distinct customers. Each customer requires strict logical separation of their firewall configurations, policies, and logs within SCM, while the MSSP's central operations team needs a consolidated view of all customer environments without cross-customer data leakage. Which SCM design principles and features are paramount for achieving this multi-tenancy with secure isolation?

A) Implementing separate SCM instances for each customer to ensure physical isolation.
B) Distributing management tasks to on-premise Panorama instances for each customer.
C) Leveraging SCM's Device Groups for logical separation, combined with granular Role-Based Access Control (RBAC) and explicit permissions per device group.
D) Utilizing a single SCM instance and relying solely on Application-ID for traffic segmentation.
E) Configuring SD-WAN overlays to segment customer traffic at the network layer.

5. You are managing a Palo Alto Networks firewall and need to allow access to an internal SSH server (10.0.5.22, TCP/22) from a specific partner's public IP address (20.20.20.20). However, due to port conflicts, the partner will be connecting to your public IP (203.0.113.50) on an alternate port, TCP/2222. You must configure a Destination NAT policy for this. Additionally, you want to log successful NAT translations and identify the original source and destination IPs, as well as the translated IPs and ports in the traffic logs. Which of the following configurations for the NAT policy and associated logging is correct and most informative?

A) The NAT rule should specify the Source Address as 20.20.20.20 and the Security Rule Destination Address as 203.0.113.50.
B) NAT Rule:
C) NAT Rule:
D) NAT Rule:
E) NAT Rule:

Solutions: