Domain 2: Services & Networking

Certified Kubernetes Administrator (CKA) · this domain is approximately 20.0% of the exam · 0 practice questions.

Services and Networking covers how pods communicate with each other and with external clients in a Kubernetes cluster. The CKA exam tests the four Kubernetes Service types (ClusterIP, NodePort, LoadBalancer, and ExternalName), how kube-proxy implements service routing via iptables or IPVS, and how DNS resolution works through CoreDNS. Candidates must also understand Ingress resources and controllers for HTTP routing, NetworkPolicy for restricting pod-to-pod traffic, and the Container Network Interface model that underpins all cluster networking. Practical tasks in this domain include creating and debugging Services, resolving DNS failures, and applying NetworkPolicies to isolate namespaces.

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The full Certified Kubernetes Administrator (CKA) bank includes 0 more questions in this domain, each with a verified answer and a written explanation.