Cisco Certified Network Associate (CCNA) Practice Exam

What should be the final command to save your configuration after setting up a Cisco device?

1. #end

2. #copy run start

3. #save config

4. #backup config

The correct answer is: #copy run start

The final command to save your configuration on a Cisco device is indeed "copy run start." This command is short for "copy running-config startup-config," which means you are taking the current (running) configuration that is actively being used by the device and saving it to the startup configuration file. This ensures that when the device is restarted, it will load the configurations you have just defined, maintaining any changes or settings you've applied during the current session. Using this command is important because the running configuration is stored in volatile memory (RAM), meaning it will be lost if the device loses power or is restarted. By saving it to the startup configuration, which is stored in non-volatile memory (NVRAM), you ensure that your changes persist across reboots. The other choices do not accomplish the task of saving the configuration: - Ending a session with "end" does not save configurations; it merely exits the configuration mode. - A command like "save config" is not recognized in Cisco IOS as a valid command for saving the configuration. - Similarly, "backup config" does not represent a valid command in the context of saving configurations on Cisco devices. Thus, "copy run start" is the essential command to ensure that all configurations are saved