CKA Storage and Volumes Flashcards
6 cards from real CKA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CKA Storage and Volumes flashcards as text
Which volume type stores data only for the lifetime of a Pod and is deleted when the Pod is removed?
Answer: emptyDir
An emptyDir volume is created when a Pod is assigned to a node and is erased permanently when the Pod terminates.
What is a key security risk of using the 'hostPath' volume type in Kubernetes?
Answer: It exposes files from the host node filesystem to the Pod, which can be exploited
A hostPath volume mounts a directory from the node's filesystem, potentially allowing a container to access or modify sensitive host files.
Which volume type is used to inject a ConfigMap's data as files into a Pod?
Answer: configMap
The configMap volume type allows individual keys from a ConfigMap to be exposed as files inside the container's filesystem.
What volume type would you use to expose Pod metadata (like labels and annotations) as files to a running container?
Answer: downwardAPI
The downwardAPI volume type projects Pod metadata fields such as labels, annotations, and resource limits into files inside the container.
Which volume type allows multiple Pods across different nodes to simultaneously read and write to the same shared storage?
Answer: nfs
An NFS volume provides shared network storage that can be mounted with ReadWriteMany access across many Pods on different nodes.
What is the purpose of a 'projected' volume in Kubernetes?
Answer: To combine multiple volume sources (secrets, configMaps, serviceAccountTokens) into a single mount point
A projected volume allows several existing volume types to be mapped into a single directory inside a Pod.
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