多項(xiàng)選擇題Given the address 192.168.20.19/28, which of the following are valid host addresses on this subnet?（）

A.192.168.20.29
B.192.168.20.16
C.192.168.20.17
D.192.168.20.31
E.192.168.20.0


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2.多項(xiàng)選擇題

Use the output from the router shown in the graphic above to determine which of the following are correct.（）

A. Router John uses a link-state routing protocol.
B. Router John will receive routing updates on the Serial0/0 interface.
C. Router John will receive routing updates on the Serial0/1 interface.
D. Router John will send routing updates out the Serial0/0 interface.
E. Router John will send routing updates out the FastEthernet0/0 interface.
F. Router John will send routing updates out the Serial0/1 interface.

3.多項(xiàng)選擇題

Which of the following statements describe the network shown in the graphic?（）

A. There are two broadcast domains in the network.
B. There are four broadcast domains in the network.
C. There are six broadcast domains in the network.
D. There are four collision domains in the network.
E. There are five collision domains in the network.
F. There are seven collision domains in the network.

4.多項(xiàng)選擇題Which characteristics are representative of a link-state routing protocol?（）

A. provides common view of entire topology
B. exchanges routing tables with neighbors
C. calculates shortest path
D. utilizes event-triggered updates
E. utilizes frequent periodic updates

5.多項(xiàng)選擇題Which of the following statements are true regarding bridges and switches?（）

A. Switches are primarily software based while bridges are hardware based.
B. Both bridges and switches forward Layer 2 broadcasts.
C. Bridges are frequently faster than switches.
D. Switches have a higher number of ports than most bridges.
E. Bridges define broadcast domains while switches define collision domains.
F. Both bridges and switches make forwarding decisions based on Layer 2 addresses.