Juniper Exam JN0-213 Topic 1 Question 6 Discussion

Actual exam question for Juniper's JN0-213 exam

Question #: 6
Topic #: 1

You have started a container in Docker, made configuration changes to it, and stopped the container. You notice the next time that you execute the docker run command, the changes have not persisted.

What is the problem?

AThe docker load command must be used to persist the change.

BDocker images need to be recompiled to make any changes.

CThe docker run command starts a new copy of the container, not the existing version.

DThe docker exec command needs to be run first to save and exit the running container.

Show Suggested Answer

Suggested Answer: C

Docker containers are designed to be ephemeral, meaning they run based on their current configuration. When a Docker container is stopped, it does not automatically save changes made during its runtime. When you executedocker run, it starts a new instance of the container, not an existing version with its changes[14-16]. If you want to persist changes between runs, you need to commit changes to a new Docker image or use Docker volumes for data persistence[14-16]. Reference from Juniper site: Stack Overflow, Docker Docs

by Kimberlie at Oct 02, 2023, 10:04 PM

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