The discarding strategy in the congestion avoidance mechanism, which does not include? (Multiple choice)

• A.WRED
• B.RED
• C.WFQ
• D.FIFO

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Trunk ports can send both labeled data frames and unlabeled data frames.

• A.False
• B.True

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SNMP consists of which of the following parts? (Multiple choice)

• A.Management Information Base
• B.Agent process
• C.Network management system
• D.Managed objects

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The two switches shown in the figure below have both enabled the STP protocol, which port will eventually be in the Blocking state?

• A.G0/0/3 port of SWB
• B.G0/0/3 port of SWA
• C.G0/0/2 port of SWB
• D.G0/0/2 port of SWA

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An error occurred when the client accessed the FTP server. It was found that there is no problem with the connectivity between the server and the client. Which of the following server ports may be blocked to cause the problem? (Multiple choice)

• A.50649
• B.80
• C.21
• D.20

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