A cloud engineer wants to delete all unused networks that are not referenced by any container. Which of the following commands will achieve this goal?

The correct answer is C. docker network prune. 'docker network prune' removes all networks that are not currently used by at least one container. This is the correct cleanup command for orphaned networks. 'docker network erase' (A) and 'docker network clear' (B) are not valid Docker commands and will produce errors. 'docker…

Scripting, Containers, and Automation

Question

Options

Adocker network erase
Bdocker network clear
Cdocker network prune
Ddocker network rm

How the community answered

(51 responses)

A
2% (1)
B
6% (3)
C
90% (46)
D
2% (1)

Explanation

'docker network prune' removes all networks that are not currently used by at least one container. This is the correct cleanup command for orphaned networks. 'docker network erase' (A) and 'docker network clear' (B) are not valid Docker commands and will produce errors. 'docker network rm' (D) is a valid command but requires you to specify individual network names or IDs explicitly - it does not automatically identify and remove all unused networks. The 'prune' subcommand is Docker's standard mechanism for cleaning up unused resources (also available for images, containers, and volumes).

Topics

#Docker#Container Networking#Resource Cleanup#CLI Commands

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