The router has several modes:

• User EXEC mode
• Privileged EXEC mode
• Global configuration mode
• Other configuration modes

The command-line interface may be used to make changes to the configuration:

• Setting the hostname
• Setting passwords
• Configuring interfaces
• Modifying configurations
• Showing configurations

An understanding of the following key points should have been achieved:

• Configuration standards are key elements in the success of any organization maintaining an efficient network.
• Interface descriptions can include important information to help network administrators understand and troubleshoot their networks.
• Login banners and messages-of-the-day provide users with information upon login to the router.
• Host name resolutions translate names to IP addresses to allow the router to quickly convert names to addresses.
• Configuration backup and documentation is extremely important to keep a network operating smoothly.