CN-Series firewall is the Palo Alto Networks firewall that provides network security when deploying a

microservices-based application. A microservices-based application is an application that consists of

multiple independent and loosely coupled services that communicate with each other through APIs.

A microservices-based application requires network security that can protect the inter-service

communication from cyberattacks and enforce granular security policies based on application or

workload characteristics. CN-Series firewall is a containerized firewall that integrates with

Kubernetes and provides visibility and control over container traffic. CN-Series firewall can provide

network security when deploying a microservices-based application by inspecting and enforcing

security policies on traffic between containers within a pod, across pods, or across namespaces in a

Kubernetes cluster. PA-Series, VM-Series, and HA-Series are not Palo Alto Networks firewalls that

provide network security when deploying a microservices-based application, but they are related

solutions that can be deployed on different platforms or environments. Reference: Palo Alto

Networks Certified Software Firewall Engineer (PCSFE), [CN-Series Datasheet], [CN-Series Concepts],

[What is a Microservices Architecture?]