Cisco
640-461 · Question #251
640-461 Question #251: Real Exam Question with Answer & Explanation
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Question
A Cisco IP phone fails to register with the Cisco CallManager. Which choice should be checked first to isolate the issue?
Options
- ACisco Discovery Protocol is enabled on the switch.
- BThe phone generates dhcp request packets.
- CThe phone generates TFTP request packets.
- DDelete and re-create the phone.
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