单项选择题
What keywords do you need to the access-list to provide to the logging message like source address and source mac address？（）
A.Log
B.Log-input
C.Log-output
D.Logging
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相关考题
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单项选择题
Whiledeployinganewswitch，youaccidentlyconnectports3/12and3/18together，creatingaloop.STPdetecteditandplacedport3/18inblockingmode.WhydidSTPnotplaceport3/12inblockingmodeinstead？（）
A.Port 3/12 was already up and forwarding before the loop was created.
B.Port priority is based on lowest priority and lowest port number.
C.You connected the wire on port 3/18 last.
D.None of the above， it is purely random. -
问答题
第二条rate-limit的作用是什么？ -
单项选择题
Youdeployednewfibersinyournetworktoreplacecopperspansthatweretoolong.Whilereconnectingthenetwork，youexperiencednetworkproblemsbecauseyoureconnectedwrongfiberstowrongports.Whatcouldyoudotopreventthistypeofprobleminthefuture，particularlywhenconnectingandreconnectingfiberpairs？（）
A.Only use fiber in pairs.
B.Configure root guard on your switches.
C.Do not use fiber but use copper.
D.Configure UDLD to prevent one-way link conditions.
