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Docker Exam DCA Topic 6 Question 77 Discussion

Actual exam question for Docker's DCA exam
Question #: 77
Topic #: 6
[All DCA Questions]

Will this command mount the host's '/data* directory to the ubuntu container in read-only mode?

Solution. 'docker run -add-volume /data /mydata -read-only ubuntu'

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Suggested Answer: B

This command does not mount the host's /data directory to the ubuntu container in read-only mode. The --add-volume and --read-only flags do not exist and will cause an error. To mount a host directory or a named volume to a container, you need to use the -v or --volume flag. To mount the host's /data directory to the ubuntu container in read-only mode, you need to use -v /data:/mydata:ro instead. Reference: https://docs.docker.com/storage/bind-mounts/, https://docs.docker.com/engine/reference/run/#volume-shared-filesystems


by Loren at Nov 26, 2023, 05:47 AM

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