多項選擇題When selecting a Network Interface Card (NIC), which of the following factors need to be considered?（）

A. The type of application used on the network
B. The type of system bus used by the computers
C. The type of memory installed in each computer
D. The type of media used in the network topology
E. The type of protocols used in the network
F. The physical layout of the network hosts


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1.多項選擇題On a Cisco network, which of the following modes of flow control are commonly used to mitigate the effects of busy data networks?（）

A. Source Quench.
B. Learning.
C. Buffering.
D. Windowing.
E. Cut-Through.

2.多項選擇題After replacing the NIC card of a PC on the LAN, your Cisco switch shows a new MAC address is attached to that port. Which of the following answer choices below correctly describe a MAC address?（）

A. It is a globally unique IP address.
B. It is a globally unique 48 bit address
C. It is provided by the manufacturer of the NIC.
D. It is used as part of the IPX/SPX configuration.
E. It is a logical address.

3.多項選擇題Which of the following correctly describe the various functions and virtues of a router?（）

A. Packet switching
B. Collision prevention on a LAN segment.
C. Packet filtering
D. Broadcast domain enlargement
E. Broadcast forwarding
F. Internetwork communication

4.多項選擇題When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements?（）

A. Bridges are faster than switches because they have fewer ports.
B. A switch is a multiport bridge,
C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.
D. A bridge will forward a broadcast but a switch will not.
E. Bridges and switches increase the size of a collision domain.
F. None of the above statements are true.

5.單項選擇題You wish to segment your LAN into multiple broadcast domains. Which technology method should you implement in order to do this?（）

A. Transparent bridging
B. Cut-through switching
C. Fragment-free switches
D. Virtual LANs
E. Store-and-forward switching