Cisco Certified Network Associate (CCNA) Practice Exam

Which command initiates the configuration mode for the interface in a routing protocol setup?

1. #interface

2. #router

3. #set interface

4. #config interface

The correct answer is: #interface

The command that initiates the configuration mode for the interface is indeed the command used to specify the interface that you want to configure. This command is commonly used in Cisco IOS when configuring aspects of network devices, especially in routing protocol setups where interface properties must be adjusted to facilitate communication protocols. When you use the command to enter interface configuration mode, you can specify parameters such as IP addresses, bandwidth, and other settings that are critical for the interface's operation within a network. This level of specificity is essential for successful routing operations, as it allows the device to manage how it communicates with other networks effectively. The distinction between different commands is crucial in networking, as each serves a specific purpose. For example, the command typically used to enter the router configuration mode is not utilized for specific interface adjustments, and commands that involve general configurations do not directly take you to the task of setting up interface parameters. Understanding which command to use for entering interface configuration mode streamlines the process of setting up network routing protocols and ensures proper configuration of devices in a network environment.