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多項選擇題

You are a technician at TestKing. Your newly appointed TestKing trainee wants to know what the CDP is.What would your reply be?()

A. It is globally enabled by default on Cisco routers.
B. It is globally enabled by default on all routers.
C. It is a proprietary protocol.
D. It is a non-proprietary protocol.
E. It can be used to gather hardware and protocol information about neighbor devices.

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