Command to Remove Configuration Elements

C

The correct answer is C. "delete."

In Junos OS, the "delete" command is used to remove configuration elements from a device. This command can be used to delete an entire configuration stanza or a specific configuration parameter.

For example, to delete the entire configuration stanza for the interface ge-0/0/0, the command would be:

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delete interfaces ge-0/0/0 

To delete a specific configuration parameter within an interface stanza, the command would be:

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delete interfaces ge-0/0/0 unit 0 family inet address 10.0.0.1/24 

It is important to note that the "delete" command only removes configuration from the candidate configuration. To commit the changes and remove the configuration from the running configuration, the "commit" command must be used.

The other answer options, "undo," "remove," and "unset" are not valid commands in Junos OS. "Undo" is not a recognized command in Junos, while "remove" and "unset" are not used to remove configuration elements.