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» Cisco » Examen Cisco CCNA V3.1 » Module 2 » Chapitre 4 » Question 4/19

4.An administrator is attempting to enable CDP on the interface of a Cisco router. After issuing the command Router(config-if)# cdp enable, the router responds with an error stating that CDP is not active.
What might be the problem?

The cdp enable command must be issued from the global mode prompt.
The administrator needed to issue the command Router(config-if)# cdp run.
CDP has not been configured globally.
The administrator did not manually enter the CDP neighbors into the CDP table.