Cluster Networking — Certified Kubernetes Administrator (CKA) Practice Questions
Cluster networking in the CKA exam refers to the full set of mechanisms that allow pods, nodes, and external clients to communicate within and across a Kubernetes cluster. Candidates must understand how CNI plugins implement the pod network, how CoreDNS provides service discovery, and how kube-proxy programs node-level routing rules for Service traffic. The exam also covers NetworkPolicy objects, which restrict east-west pod communication using label-based ingress and egress rules. Diagnosing cluster networking failures, such as a pod that cannot resolve DNS or reach a service endpoint, is a practical skill tested directly in exam scenarios.
Free questions on cluster networking
What is the purpose of a Service in Kubernetes?
Free question · easy · full answer + explanation
More cluster networking questions in the full bank
- What is the default communication port for the kube-apiserver? Unlock answer & explanation →
- How do you debug DNS resolution issues in a cluster with CoreDNS? Unlock answer & explanation →
- What is Kubernetes DNS? Unlock answer & explanation →