单项选择题
What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）
A.The switch will not forward unicast frames.
B.The switch will forward the frame to a specific port.
C.The switch will return a copy of the frame out the source port.
D.The switch will remove the destination MAC from the switch table.
E.The switch will forward the frame to all ports except the port on which it was received.
相关考题
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多项选择题
WhichofthefollowingarekeycharacteristicsofPPP?(Choosethree.)（）
A.can be used over analog circuits
B.maps Layer 2 to Layer 3 address
C.encapsulates several routed protocols
D.supports IP only
E.provides error correction -
多项选择题
WhatTCP/IPstackconfigurationfeaturescanDHCPprovide,inadditiontoassigninganIPaddress?(Choosethree.)（）
A.default gateway
B.DNS servers
C.FTP server
D.helper address
E.subnet mask
F.TFTP server -
多项选择题
WhataretwocharacteristicsofTelnet?(Choosetwo.)（）
A.It sends data in clear text format.
B.It is no longer supported on Cisco network devices.
C.It is more secure than SSH
D.It requires an enterprise license in order to be implemented.
E.It requires that the destination device be configured to support Telnet connections.
