What is an ephemeral container?

The correct answer is B. A specialized container that runs temporarily in an existing Pod. An ephemeral container (B) is a special type of container that can be injected into a running pod temporarily, primarily for live debugging and troubleshooting. Unlike regular containers, ephemeral containers are not defined in the pod spec at creation time and are not…

Submitted by certguy· May 4, 2026Kubernetes Fundamentals

Question

Options

AA specialized container that runs as root for infosec applications.
BA specialized container that runs temporarily in an existing Pod.
CA specialized container that extends and enhances the 'main' container in a Pod
DA specialized container that run before app container in a Pod

How the community answered

(64 responses)

A
2% (1)
B
91% (58)
C
5% (3)
D
3% (2)

Explanation

An ephemeral container (B) is a special type of container that can be injected into a running pod temporarily, primarily for live debugging and troubleshooting. Unlike regular containers, ephemeral containers are not defined in the pod spec at creation time and are not restarted when they exit. Option C describes a sidecar container. Option D describes an init container. Option A is incorrect - ephemeral containers have no requirement to run as root and are unrelated to infosec applications.

Topics

#Ephemeral Containers#Kubernetes Pods#Debugging#Troubleshooting

Community Discussion

No community discussion yet for this question.

Full KCNA Practice