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KCNA · Question #7

KCNA Question #7: Real Exam Question with Answer & Explanation

The correct answer is D: Network Policies. To control specific traffic flows for workloads in Kubernetes, the CNI plugin must support Network Policies.

Submitted by katya_ua· May 4, 2026Kubernetes Fundamentals

Question

What feature must a CNI support to control specific traffic flows for workloads running in Kubernetes?

Options

  • ABorder Gateway Protocol
  • BBorder Gateway Protocol
  • CPod Security Policy
  • DNetwork Policies

Explanation

To control specific traffic flows for workloads in Kubernetes, the CNI plugin must support Network Policies.

Common mistakes.

  • A. Border Gateway Protocol (BGP) is a routing protocol primarily used for routing between autonomous systems on the internet, or sometimes within a large cluster for advanced routing, but it's not the feature that directly enables Kubernetes Network Policies.
  • B. Border Gateway Protocol (BGP) is a routing protocol primarily used for routing between autonomous systems on the internet, or sometimes within a large cluster for advanced routing, but it's not the feature that directly enables Kubernetes Network Policies.
  • C. Pod Security Policy (PSP) controls security aspects of Pod creation and updates, such as privileged containers or host path access, not specific network traffic flows.

Concept tested. CNI and Network Policies

Reference. https://kubernetes.io/docs/concepts/services-networking/network-policies/

Topics

#Kubernetes Networking#Network Policies#CNI#Network Security

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