CKAD Multi-Container Pods and Init Containers 2

Question 1

What type of volume is created when a pod starts, lives as long as the pod, and is deleted when the pod is removed?

Accepted Answer

emptyDir

Answer

PersistentVolume

Answer

hostPath

Answer

configMap

Question 2

An Init Container needs to clone a Git repo before the main app starts. Which volume type is best for sharing the cloned files?

Accepted Answer

emptyDir

Answer

PersistentVolumeClaim

Answer

hostPath

Answer

nfs

Question 3

Which field in a pod spec lists init containers?

Accepted Answer

spec.initContainers

Answer

spec.containers

Answer

spec.setup

Answer

spec.beforeContainers

Question 4

In the Sidecar pattern, which describes the relationship between the sidecar and main container?

Accepted Answer

The sidecar enhances or extends the main container's functionality while running alongside it

Answer

The sidecar replaces the main container on failure

Answer

The sidecar intercepts all incoming traffic before it reaches the main container

Answer

The sidecar runs only during startup and exits

Question 5

What is a key difference between Init Containers and regular containers regarding running simultaneously?

Accepted Answer

Init containers run sequentially to completion before any app container starts

Answer

Init containers run in parallel with app containers

Answer

Init containers and app containers always run in parallel

Answer

Init containers run after app containers have started

Question 6

Which command shows the logs of a specific container named 'sidecar' in a multi-container pod named 'mypod'?

Accepted Answer

Both B and C are correct

Answer

kubectl logs mypod sidecar

Answer

kubectl logs mypod --container=sidecar

Answer

kubectl logs mypod -c sidecar