NETSEC-GENERALIST Question #12: Real Exam Question with Answer & Explanation

Question

What is the main security benefit of adding a CN-Series firewall to an existing VM-Series firewall deployment when the customer is using containers?

Options

• AIt provides perimeter threat detection and inspection outside the container itself.
• BIt prevents lateral threat movement within the container itself.
• CIt monitors and logs traffic outside the container itself.
• DIt enables core zone segmentation within the container itself.

Explanation

A CN-Series firewall is a container-native firewall designed to provide security inside Kubernetes environments. It is used in addition to a VM-Series firewall, which primarily protects cloud and virtualized workloads. The main security benefit of CN-Series is that it prevents lateral movement of threats within the container itself by enforcing: Microsegmentation within Kubernetes clusters Deep packet inspection for inter-container communication Zero Trust enforcement inside containerized applications Why Preventing Lateral Threat Movement is the Correct Answer? Containers are highly dynamic, and traditional firewalls cannot inspect intra-container traffic. The CN-Series firewall enforces microsegmentation, blocking unauthorized communication between compromised containers. Prevents malware or attackers from spreading within the Kubernetes environment.

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