多項(xiàng)選擇題As a Pass Guide instructor you are giving a lecture on the historical context of Cisco. You point out that a computer scientist started the Cisco Corporation. One of the attendants asks you when and where Cisco was founded. What should you respond? （）

A. 1978
B. 1984
C. 1991
D. 1996
E.Massachusetts Institute of Technology
F.California Polytechnic Institute
G.Harvard
H.Stanford


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1.單項(xiàng)選擇題Which benefit does digital subscriber line (DSL) systems for broadband access provide to the user?（）

A.Secure access to company extranet
B.Dedicated lines for high security data transfer
C.Simple solution for high-quality digital video using coaxial cable
D.Data and audio signals that share the same communications infrastructure

2.單項(xiàng)選擇題Which network technology allows for the monitoring of active communication networks to diagnose problems and gather statistics for network administration?（）

A.Network security
B.Content networking
C.Network management
D.Campus local-area networking

4.單項(xiàng)選擇題How does a switch respond when it receives a message?（）

A.It reads the Layer-5 information and sends the message directly to the intended computer.
B.It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.
C.It reads the Layer-5 information and broadcasts the message to all the computers that are connected to the switch.
D.It reads the Media Access Control (MAC) address and broadcasts the message to all the computers that are connected to the switch.

5.多項(xiàng)選擇題Which two Internet Protocol (IP) telephony devices are best categorized as infrastructure components? （）

A.IP telephones
B.Voice gateways
C.Call management software
D.Media Convergence Servers (MCSs)