單項選擇題

Which of the following would be used to optimize network performance and increase bandwidth availability?（）

A. Packet analysis
B. QoS
C. Traffic shaping
D. Fault tolerance

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多項選擇題

Which of the following commands provides similar information about the current configuration ofactive local Ethernet adapters? (Select TWO)（）

A. traceroute
B. ipconfig
C. ifconfig
D. route
E. hostname

單項選擇題

Which of the following protocols is used to disable switch ports automatically to prevent switchingloops?（）

A.RIP
B.0S：F
C.STP
D.EGP