单项选择题
What is the function of the command switchport trunk native vlan 999 on a switch?（）
A. It designates VLAN 999 for untagged traffic.
B. It blocks VLAN 999 traffic from passing on the trunk.
C. It creates a VLAN 999 interface.
D. It designates VLAN 999 as the default for all unkown tagged traffic.
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相关考题
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单项选择题
Which IPsec security protocol should be used when confidentiality is required?（）
A. AH
B. MD5
C. PSK
D. ESP -
单项选择题
Which command can you use to manually assign a static IPV6 address to a router interface?（）
A. ipv6 address PREFIX_1::1/64
B. ipv6 autoconfig 2001:db8:2222:7272::72/64
C. ipv6 autoconfig
D. ipv6 address 2001:db8:2222:7272::72/64 -
单项选择题
Why will a switch never learn a broadcast address?（）
A. Broadcast frames are never sent to swiches.
B. Broadcast addresses use an incorrect format for the switching table.
C. A broadcast address will never be the source address of a frame.
D. Broadcasts only use network layer addressing.
E. A broadcast frame is never forwarded by a switch.
