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Cisco CCNA 640-802试题(66-70)

2007-12-24 11:17 佚名 51CTO.com 字号:T | T
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本文内容为Cisco CCNA认证考试640-802(66-70)试题及答案。

AD:

66. Which of the following statements are true regarding bridges and switches? (Choose 3.)

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.

Answer: BDF

67. Refer to the exhibit. A network administrator is adding two new hosts to SwitchA. Which three values could be used for the configuration of these hosts? (Choose three.)

A. host 1 IP address: 192.168.1.79
B. host 1 IP address: 192.168.1.64
C. host 1 default gateway: 192.168.1.78
D. host 2 IP address: 192.168.1.128
E. host 2 default gateway: 192.168.1.129
F. host 2 IP address: 192.168.1.190

Answer: ACF 

68. Which of the following describes the roles of devices in a WAN? (Choose three.)

A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.

Answer: ADE

69. What can be determined from the router output shown in the graphic?

A. 200.1.1.64 is a default route.
B. The output shows that there are three default routes.
C. The output came from router R2.  D. The output came from a router that has four physical interfaces.
E. EIGRP is in use in this network.

Answer: E

70. A router receives information about network 192.168.10.0/24 from multiple sources. What will the router consider the most reliable information about the path to that network?

A. a directly connected interface with an address of 192.168.10.254/24
B. a static route to network 192.168.10.0/24
C. a RIP update for network 192.168.10.0/24
D. an OSPF update for network 192.168.0.0/16
E. a default route with a next hop address of 192.168.10.1
F. a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop

Answer: A

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