You have been asked to enable the Cisco IOS Resilient Configuration feature on a Cisco router. You issue the following commands on the router:
Router#configure terminal Router(config)#secure boot-image
Which of the following commands are you most likely to issue next to complete the configuration? (Select the best answer.)
- confreg 0x2102
- secure boot-config
- secure boot-config restore
Most likely, you will next issue the secure boot-config command if you are enabling the Cisco IOS Resilient Configuration feature on a Cisco router. The Resilient Configuration feature is designed to protect system and configuration files from tampering and accidental deletion. You can issue the following block of commands to enable the Resilient Configuration feature:
When the feature is enabled, the primary system image file and associated running configuration are securely archived in local persistent storage? you cannot select a remote storage location. The secure boot-image command enables the image resilience component of the Resilient Configuration feature and effectively hides the system image from the directory structure. This means that the system image will no longer be displayed when the dir command is issued from the command prompt of an EXEC shell? you can issue the show secure bootset command to verify that the system image has been archived. In addition, because the system image file is not copied to a secure location, extra storage is not required to secure it. By contrast, the secure bootconfig command creates a hidden copy of the running configuration file. The secured versions of the system image and running configuration are referred to as the primary bootset.
Once the system image and running configuration have been secured, the router will track version mismatches and produce a console message if the system image or running configuration have mismatched versions. Once the Resilient Configuration feature is enabled, it can only be disabled from the console.
You would not issue the confreg 0x2102 command. The confreg 0x2102 command configures the router to load an IOS image from flash memory. This is the factory default setting on a Cisco router. You would not issue the secure boot-config restore command. You would issue the secure boot-config restore filename command, where filename is the filesystem and file name under which you want to save the restored file, only if you were attempting to recover the hidden running configuration. The secure boot-config command should be issued from global configuration mode.
You would not issue the reload command. The reload command reloads the startup configuration into the running configuration. Issuing the reload command is not required to enable the Cisco IOS Resilient Configuration feature.