多項選擇題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)

6.單項選擇題What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）

A.QoS
B.Centrex
C.Packet encryption
D.Intelligent call routing

7.單項選擇題Why is QoS important in a converged network?（）

A.Because data does not need to arrive intact, so data transfer rates can be variable
B.Because lost voice-data packets must be retransmitted
C.Because voice data packets should arrive quickly and sequentially, and with no lost data
D.Because voice data packets must follow a single dedicated path through the network

9.單項選擇題Which network technology addresses these customer business needs: shrinking budgets and IT staffs, more complex networks, and an increased need for network security?（）

A.Optical network
B.Network management
C.Storage-area network (SAN)
D.Content delivery network (CDN)

10.單項選擇題What does a router do?（）

A.Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)
B.Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)
C.Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)
D.Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)