☁️ Free practice test question from: KCNA (KCNA)

Containers within the same Kubernetes pod share the same network namespace, which means they can communicate with each other using localhost (127.0.0.1) and can access each other's ports directly. This is one of the fundamental design patterns of pods in Kubernetes - co-located containers that need to communicate closely share the same network space and can talk to each other as if they were processes running on the same machine.

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East-West Traffic: Communication between services within the same network or data center, such as pod-to-pod communication within a Kubernetes cluster.

North-South Traffic: Communication between the outside world and your cluster (ingress and egress), such as external clients accessing your services or your services calling external APIs.