Which of the following authentication methods does not require the user name and password? ()

• A.authentication-mode local
• B.authorization-mode hwtacacs
• C.Authentication-mode hwtacacs
• D.authentication-mode none

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As shown in the figure, you only need to configure this static route on R1, and the two hosts can communicate with each other normally.

• A.False
• B.True

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The priority of the LACP protocol is shown in the figure. Switch A and Switch B adopt LACP mode link aggregation. And all interfaces join the link aggregation group. At the same time, set the maximum number of active ports to 3. Then which port of switch A is not the active port?

• A.G0/0/0
• B.G0/0/3
• C.G0/0/1
• D.G0/0/2

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Which layer of protocol does ARP belong to

• A.Physical layer
• B.Network layer
• C.data link layer
• D.Transport layer

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The WPLS tag header is encapsulated between the data link layer header and the network layer header of the message.

• A.False
• B.True

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