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Cisco CCNA 640-802试题(41-45)

2007-12-19 09:43 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(41-45)试题及答案。

AD:

41. What is the maximum data rate specified for IEEE 802.11b WLANs?

A. 10 Mbps
B. 11 Mbps
C. 54 Mbps
D. 100 Mbps

Answer: B

42. Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)

A. It is locally significant.
B. It is globally significant. 
C. It is needed to identify a unique instance of an OSPF database.
D. It is an optional parameter required only if multiple OSPF processes are running on the router.
E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information.

Answer: AC

43. Refer to the exhibit. The FMJ manufacturing company is concerned about unauthorized access to the Payroll Server. The Accounting1, CEO, Mgr1, and Mgr2 workstations should be the only computers with access to the Payroll Server. What two technologies should be implemented to help prevent unauthorized access to the server?(Choose two.)

A. access lists
B. encrypted router passwords
C. STP
D. VLANs
E. VTP
F. wireless LANs
Answer: AD

44. Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choose
two.)

A. It establishes a static route to the 172.16.3.0 network.
B. It establishes a static route to the 192.168.2.0 network.
C. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network.
D. It configures the router to send any traffic for an unknown destination out the interface with the address
192.168.2.4. 
E. It uses the default administrative distance. 
F. It is a route that would be used last if other routes to the same destination exist.

Answer: AE

45. Which of the following are types of flow control? (Choose three.)

A. buffering
B. cut-through
C. windowing
D. congestion avoidance
E. load balancing

Answer: ACD

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