How to Restore a Junos Device to Its Default State

A

The correct answer to the question is A. "load factory-default" command is used to restore a Junos device to its default state.

Here is a detailed explanation of the answer and the other options:

A. "load factory-default": This command restores the device's configuration to the factory-default configuration. This command deletes the current configuration and replaces it with the default configuration. This command is useful if you want to start with a fresh configuration and remove any customizations or changes that have been made to the device's configuration.

B. "load override factory-default": This command is similar to the "load factory-default" command, but it overrides some parameters in the factory-default configuration. This command allows you to keep some customizations that you have made to the device's configuration while still restoring the default configuration for other parameters.

C. "load replace default": This command replaces the device's configuration with the default configuration, but it does not delete the existing configuration. Instead, it replaces only the configuration statements that are present in the default configuration. Any statements that are not present in the default configuration are not affected.

D. "load set default": This command is not a valid Junos command.

In conclusion, the correct command to restore a Junos device to its default state is "load factory-default".