Cisco Certified Network Associate (CCNA) Practice Exam

Which command is used to copy the running configuration to the startup configuration?

1. #copy run start

2. #copy run config

3. #save run start

4. #backup run start

The correct answer is: #copy run start

The command used to copy the running configuration to the startup configuration is indeed the one that begins with 'copy run start'. This command is crucial because it ensures that any changes made to the running configuration are saved so that they persist after the device is rebooted. This means that if the device goes down or is powered off for any reason, it will load the saved startup configuration upon restart, allowing you to retain your settings and configurations. The components of the command are as follows: "copy" is the action you want to perform, "run" refers to the running configuration which is currently active and in use, and "start" refers to the startup configuration, which is the configuration that the router uses when it boots up. When you execute this command, you are directly instructing the device to take the active settings and save them for future use. Other choices, while they may sound reasonable, either do not exist in Cisco command syntax or do not accomplish the task of saving the running configuration effectively. Therefore, using the correct command is critical for ensuring that your network configuration remains intact through reboots and outages.