Palo Alto Networks Certified Network Security Administrator (PCNSA)Palo Alto Networks Security PlatformHard
A managed security service provider (MSSP) offers security services to multiple clients. Each client requires its own isolated security policies, network zones, and virtual routers, all managed from a single physical Palo Alto Networks firewall. What feature allows the MSSP to achieve this multi-tenant isolation?
- ASecurity Profiles
- BVirtual Systems (vSys)
- CPolicy-Based Forwarding (PBF)
- DService Routes
Show answer & explanationAnswer & explanation
Correct answer: B. Virtual Systems (vSys)
Virtual Systems (vSys) allow a single physical Palo Alto Networks firewall to be partitioned into multiple logical firewalls, each with its own security policies, network zones, virtual routers, and administrators, providing true multi-tenant isolation.
Why the other options are wrong
- A. Security Profiles are individual security checks (e.g., Antivirus, Anti-Spyware) applied within policies, not for multi-tenant isolation.
- C. Policy-Based Forwarding (PBF) is used to override standard routing based on specific traffic criteria within a single virtual system, not to create isolated logical firewalls.
- D. Service Routes define how the firewall itself accesses external services (e.g., DNS, NTP, WildFire), not for multi-tenant isolation.
Virtual Systems (vSys)
Virtual Systems (vSys) is a feature on Palo Alto Networks firewalls that allows a single physical firewall to be logically partitioned into multiple independent firewalls, each with its own policies, zones, virtual routers, and administrators, enabling multi-tenancy.
- Partitions a single physical firewall into multiple logical firewalls
- Each vSys operates independently with its own configuration
- Provides true multi-tenancy for MSSPs or large enterprises
- Requires a specific license
Memory trick: Virtual Systems: Many small 'systems' inside one big box.