640-821 試験問題を無料オンラインアクセス

HOTSPOT
lab

正解：

Which command displays the status of the network layer protocols active on a router?

• A.show flash
• B.show protocols
• C.show network protocols
• D.show version
• E.show stacks

Refer to the exhibit. SwitchA receives the frame with the addressing shown. According to the command output also shown in the exhibit, how will SwitchA handle this frame?

• A.It will flood the frame out all ports.
• B.It will flood the frame out all ports except Fa0/3.
• C.It will forward the frame out port Fa0/3 only.
• D.It will drop the frame.

Refer to the exhibit. Why was this message received?

• A.No console password has been set.
• B.No VTY password has been set.
• C.No enable secret password has been set.
• D.No enable password has been set.
• E.The login command has not been set on CON 0.
• F.The login command has not been set on the VTY ports.

How does a switch differ from a hub?

• A.A switch decreases the number of broadcast domains.
• B.A switch does not induce any latency into the frame transfer time.
• C.A switch decreases the number of collision domains.
• D.A switch operates at a lower, more efficient layer of the OSI model.
• E.A switch tracks MAC addresses of directly-connected devices.