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單項選擇題

Which of the following is equipment provided by the telephone company that provides remotediagnostic and loopback services for subscriber lines?（）

A. 66 block
B. Demarc
C. Smart jack
D. 110 block

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單項選擇題

Which of the following routing protocols runs over UDP and determines path based upon distancevectors?（）

A.RIP
B.DSI
C.BGP
D.IS-IS

單項選擇題

Which of the following is a disadvantage of using the EIGRP protocol?（）

A. It does not scale well
B. It converges slower than OSPF
C. It is a proprietary protocol
D. It is a distance vector protocol