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Certified Kubernetes Administrator CKA (Kubernetes v1.35 curriculum) · Domain 3: Services and Networking

Testing connectivity with temporary Pods (busybox, nicolaka/netshoot), nslookup, curl and nc

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Last reviewed September 25, 2026 · Leer en español

Many CKA tasks end with 'verify that ...', and many troubleshooting tasks start with 'Pod A cannot reach B'. The fastest tool is a throwaway Pod inside the cluster, because it sees the network exactly as your workloads do, including DNS and NetworkPolicies.

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