單項(xiàng)選擇題

As witch is configured as a vtp sever with a domain name of CCNA.Which cisco ios privileged mode command，followed by a reload of the swith，will reset the VTP management domain name of the switch to a NULL value？（）

A.#vtp domain unset
B.#delete vlan.dat
C.#no vtp domain
D.#vtp domain null

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