200-901 Application Deployment and Security Practice Question
A Kubernetes pod runs two containers that need to share a filesystem. Which volume type should be used to enable file sharing between the containers within the same pod?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
emptyDir
An emptyDir volume is created empty when a pod is scheduled and can be mounted by multiple containers in the same pod, allowing them to share files.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
configMap
Why it's wrong here
Incorrect. ConfigMap is for configuration data, not for sharing files between containers.
- ✗
hostPath
Why it's wrong here
Incorrect. hostPath mounts a directory from the host node, not specific to the pod.
- ✗
persistentVolumeClaim
Why it's wrong here
Incorrect. PVC is for persistent storage, not ephemeral sharing within a pod.
- ✓
emptyDir
Why this is correct
Correct. emptyDir provides a shared volume for containers in the same pod.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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