CCNA: Cisco Certified Network Associate — Question 349

A network engineer must create a diagram of a multivendor network. Which command must be configured on the Cisco devices so that the topology of the network is allowed to be mapped?

Answer options

• A. Device(config)#lldp run
• B. Device(config)#cdp run
• C. Device(config-if)#cdp enable
• D. Device(config)#flow-sampler-map topology

Correct answer: A

Explanation

The correct answer is A, as the command 'lldp run' enables the Link Layer Discovery Protocol, which is essential for discovering and mapping devices in a multivendor environment. Options B and C involve CDP (Cisco Discovery Protocol), which only works on Cisco devices, thus limiting the ability to map non-Cisco devices. Option D is unrelated to topology mapping.