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Q7. Which command can be used to view CDP information about a specific neighbor r1.mydomain.com. The output should include device ID, address, protocol, interface, hold time and version?

A. show cdp

B. show cdp neighbor

C. show cdp traffic

D. show cdp entry r1.mydomain.com

Correct Answer: D

Explanation:

show cdp: This command shows global CDP information including timer and hold-time information.
Show cdp neighbor: This command displays neighboring device information such as device Ids, device capability, hardware platforms, and port type. 
Show cdp neighbor detail: This command displays additional information about the neighboring devices that include network-layer protocol information and version.
Show cdp entry: This command is useful for further troubleshooting. It displays information about intended Cisco device. The information include device ID, address and protocol, interface, platform, hold time and version.

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