Which command is used to load the rescue configuration?

The command to load the rescue configuration is indeed "rollback rescue." This command allows a user to restore the previously saved rescue configuration on the device. The rescue configuration is a saved snapshot of the device's configuration that can be used to revert to a known and stable state in case the current configuration causes issues or instability.

When you execute "rollback rescue," the system replaces the active configuration with the rescue configuration, ensuring that any problems caused by recent configuration changes can be quickly mitigated. This is particularly useful in network management where uptime and reliability are critical, as it provides a straightforward method to recover from configuration errors.

In contrast, other commands such as "load factory-default" would be used to reset the device to its default settings, which is not the same as loading a specific saved configuration. The "load rescue" command does not exist as it is not a valid command for loading the rescue configuration, and "rollback configuration" does not specifically refer to the rescue configuration but rather to the last committed change. Thus, "rollback rescue" is the precise command needed for this operation.