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Exam Information
Official specifications published by Palo Alto Networks
Exam Format
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Skills this practice test covers
- Plan high availability, security zones and traffic flows for a firewall design.
- Configure interfaces, NAT rules and security profile groups on PAN-OS.
- Control traffic by application with App-ID and by user with User-ID.
- Set up IPsec tunnels, GlobalProtect remote access and SSL decryption.
- Manage firewalls at scale with Panorama device groups and template stacks.
- Troubleshoot NAT, policy and VPN faults with CLI commands and packet captures.
Explore related topics
PCNSE exam content
5 domains · 36 topics · 230 of 395 questions sorted by domain
Planning and Core Concepts19%30 questions
This domain covers design choices made before any configuration. Candidates explain how the platform inspects traffic, choose a high availability model, and plan security zones and the flows between them.
Skills tested
- Explain how the single-pass architecture inspects each packet once for all security functions.
- Apply Zero Trust ideas to a zone design that limits traffic between segments.
- Choose active/passive or active/active high availability to meet a business need.
- Show how Palo Alto Networks products work together to detect and prevent threats.
Official topics
- Palo Alto Networks Architecture
- High Availability Planning
- Zone-Based Architecture
Deploy and Configure32%95 questions
The largest domain is hands-on firewall setup. Candidates configure interfaces, NAT, security profiles, App-ID, User-ID, VPNs and decryption on PAN-OS.
Skills tested
- Configure tap, virtual wire, Layer 2 and Layer 3 interfaces with management profiles.
- Write source, destination and U-turn NAT rules, and fix rules that do not match.
- Build security profile groups from antivirus, anti-spyware and file blocking profiles.
- Identify applications with App-ID, create custom applications, and base policy on User-ID and dynamic user groups.
- Set up IPsec site-to-site VPNs, GlobalProtect portals and gateways, and SSL Forward Proxy decryption.
Official topics
- Interface Configuration
- Security Profiles
- NAT Configuration
- App-ID Configuration
- User-ID Configuration
- VPN Configuration
- Decryption
Deploy and Configure Firewalls Using Panorama13%17 questions
Panorama manages many firewalls from one console. Candidates design the device group hierarchy, push settings with templates, and collect logs with Log Collectors.
Skills tested
- Design a device group hierarchy so shared policies and objects are inherited correctly.
- Push network and device settings with templates and template stacks.
- Set up Log Collectors and collector groups, with log forwarding and retention.
Questions by topic
- Distributed Log Collection4
- Templates and Template Stacks10
- Objects3
Manage and Operate16%39 questions
This domain is the routine work of keeping firewalls healthy. Candidates monitor the firewall, read its logs, schedule updates, and back up and restore configurations.
Skills tested
- Monitor firewall health and read traffic, threat and system logs.
- Schedule content updates and plan PAN-OS software upgrades.
- Save configuration snapshots and recover a firewall from a backup.
Questions by topic
- Monitoring and Reporting7
- Software and Content Updates7
- Backup and Recovery5
- Configuration Management5
- Threat Prevention1
- Automation1
- Log Forwarding6
- Policy Optimizer7
Troubleshooting20%49 questions
When traffic fails, candidates must find out why. This domain covers connectivity, policy, NAT, VPN and performance problems, worked through with CLI commands and packet captures.
Skills tested
- Find why traffic is denied by checking zones, security rule matches and NAT.
- Debug IKE negotiation and IPsec tunnel failures.
- Use show, test and debug commands, and take packet captures at each processing stage.
- Trace high CPU or memory use and session capacity problems to their cause.
Questions by topic
- Connectivity Troubleshooting5
- High Availability Troubleshooting5
- Performance Troubleshooting4
- Panorama Troubleshooting8
- Tools and Commands4
- Policy Troubleshooting5
- User-ID Troubleshooting4
- Policy Based Forwarding2
- GlobalProtect1
- Distributed Log Collection1
- App-ID4
- Threat Prevention1
- VPN Configuration1
- Log Forwarding2
- SD-WAN2
Requirements
- No formal prerequisites.
- Recommended: three to five years of networking or network security experience.
- Recommended: a year or more managing Palo Alto Networks firewalls, including PAN-OS, Panorama and GlobalProtect.
- Recommended: the PCNSA certification first.
About the PCNSE exam
PCNSE tests whether an engineer can plan, deploy, run and troubleshoot Palo Alto Networks next-generation firewalls. The firewalls run PAN-OS, and Panorama manages many of them from one console. The exam expects real experience with both: Palo Alto Networks recommends several years in network security and the PCNSA administrator certification first. Passing earns the Palo Alto Networks Certified Network Security Engineer certification.
Deploy and Configure is the largest domain, so the PlanetCert practice test gives the most questions to NAT, security profiles, App-ID, User-ID, VPNs and decryption. The explanations show how the firewall treats the traffic. One example is destination NAT, where the security rule uses the pre-NAT address but the post-NAT zone. Study Mode suits the troubleshooting domain, where each CLI command needs a careful read. Brainy AI Assistant can explain an unfamiliar command's output or write a new question on the same NAT case.
How to earn the certification
- Earns
- Palo Alto Networks Certified Network Security Engineer (PCNSE)Professional
The PCNSE certification stays valid for two years.
- Before
- PCNSA Network Security Administrator
The administrator exam usually taken first. It covers everyday firewall setup, and PCNSE builds on it.
- PCNSA Network Security Administrator
- After
- NetSec-Architect Palo Alto Networks Certified Network Security Architect
Palo Alto Networks' architect-level certification. It moves from configuring firewalls to designing network security as a whole.
- NetSec-Architect Palo Alto Networks Certified Network Security Architect
How to prepare for PCNSE
- 1
Confirm which exam to book
This practice test follows the PCNSE objectives. Palo Alto Networks' newer firewall engineer exam is Next-Generation Firewall Engineer, so check which exam the booking page lists before planning study time.
- 2
Run a lab firewall with Panorama
Use a PAN-OS virtual firewall, managed by Panorama if possible, so every task in the syllabus can be tried by hand.
- 3
Pair every NAT rule with its policy
Deploy and Configure is the largest domain. Build source, destination and U-turn NAT, and check which address and which zone each matching security rule must use.
- 4
Practise reading CLI output
Run show, test and debug commands on working and broken setups, and take packet captures. The troubleshooting domain is built on this skill.
- 5
Drill weak domains, then time it
Work through the PCNSE practice test one domain at a time in Study Mode, then take a full run in Timed Mode. Repeat every missed NAT or VPN case in the lab.
Start a timed PCNSErun
Palo Alto Networks recommends Firewall Essentials: Configuration and Management (EDU-210), Panorama: Managing Firewalls at Scale (EDU-220) and Firewall: Troubleshooting (EDU-330).
Who PCNSE is for
- Network security engineers who build and run Palo Alto Networks firewalls for their organization.
- Firewall administrators who hold PCNSA and want engineer-level skills.
- Engineers who manage many firewalls through Panorama.
- Security staff who troubleshoot VPN, NAT and policy problems on PAN-OS.
Typical job titles: Network security engineer · Firewall engineer · Security architect · Firewall administrator · Security operations engineer · Network engineer
PCNSE glossary
18 terms from the exam objectives and the vendor's official material, each defined in a sentence.
- Active/Passive
- A high availability mode in which one firewall handles all traffic while its peer waits to take over.
- App-ID
- The firewall feature that identifies the application in a traffic flow, whatever port it uses.
- Device group hierarchy
- Panorama's nested device groups, where lower groups inherit policies and objects from the groups above.
- Dynamic user groups
- Groups whose members change automatically when users are tagged, so policy follows the tag.
- GlobalProtect
- Palo Alto Networks' remote access VPN, made up of a portal, gateways and an app on each device.
- HIP checks
- Host information profile checks, which test a device's state, such as its patch level, before access is allowed.
- Packet capture
- A recording of packets at chosen stages inside the firewall, used to find where traffic is dropped.
- PAN-OS
- The operating system that runs on Palo Alto Networks next-generation firewalls.
- Panorama
- Palo Alto Networks' central manager for configuring many firewalls and collecting their logs.
- Panorama Log Collectors
- Devices that receive and store firewall logs for Panorama, so log storage can grow on its own.
- Security profile groups
- Bundles of security profiles, such as antivirus and anti-spyware, that attach to a rule in one step.
- Single-Pass Architecture
- The firewall design that processes each packet once for all its security checks, instead of passing it through separate engines.
- SSL Forward Proxy
- Decryption of outbound traffic in which the firewall stands between the user and the website and presents its own certificate.
- SSL Inbound Inspection
- Decryption of traffic going to an internal server, using a copy of that server's certificate and private key.
- Template stacks
- Ordered sets of Panorama templates that combine to give each firewall its network and device settings.
- U-Turn NAT
- A NAT setup that lets internal users reach an internal server through its public address.
- User-ID
- The feature that maps IP addresses to user names, so rules can allow or block traffic by user or group.
- Zero Trust Architecture
- A security model that trusts no user, device or network by default and checks every connection.
Related practice tests
- PCCPCertified Cybersecurity Practitioner
- NetSec-ArchitectPalo Alto Networks Certified Network Security Architect
- NGFW-ENGINEERNext-Generation Firewall Engineer
- SD-WAN-EngineerPalo Alto Networks Certified SD-WAN Engineer
- sse-engineerSecurity Service Edge Engineer (2025)