Cisco Certified Network Associate (CCNA) Practice Exam

Which command is used to save the running configuration after creating an EtherChannel?

1. write memory

2. copy run start

3. save config

4. commit

The correct answer is: copy run start

The command that is used to save the running configuration to the startup configuration after creating an EtherChannel is the one that copies the current running configuration to the startup configuration file in non-volatile memory. This ensures that any changes made, including the creation of the EtherChannel, are retained even after the device is rebooted. The chosen answer is correct because the command "copy run start" specifically performs this function. It effectively copies the active configurations, which includes the EtherChannel settings, to the startup configuration of the device, ensuring persistence across reboots. Other options have different functionalities. For instance, while "write memory" achieves a similar outcome (it also saves the running configuration), it is more of an older command and its usage has become less common in modern Cisco IOS. "Save config" is not a recognized command in Cisco IOS, and "commit" is typically associated with configuration changes in a different context, such as in a device utilizing a different command structure or in specific device types like Cisco's IOS-XR. Thus, "copy run start" is the most accurate and recognized command for this purpose in traditional Cisco IOS environments.