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Cisco CCNA 640-802试题(51-55)

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(51-55)试题及答案。

AD:

51. Refer to the exhibit. A problem with network connectivity has been observed. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. What would be an effect of this cable being disconnected?

A. Host B would not be able to access the server in VLAN9 until the cable is reconnected.
B. Communication between VLAN3 and the other VLANs would be disabled.
C. The transfer of files from Host B to the server in VLAN9 would be significantly slower.
D. For less than a minute, Host B would not be able to access the server in VLAN9. Then normal network
function would resume.

Answer: D

52. Refer to the exhibit. Router1 was just successfully rebooted. Identify the current OSPF router ID for Router1.

A. 190.172.32.10
B. 208.149.23.162
C. 208.149.23.194
D. 220.173.149.10  

Answer: C  TestInside    640-802 

53. What can a network administrator utilize by using PPP Layer 2 encapsulation? (Choose three.)

A. VLAN support
B. compression
C. authentication
D. sliding windows
E. multilink support
F. quality of service
Answer: BCE

54. Refer to the exhibit. What is the meaning of the term dynamic as displayed in the output of the show
frame-relay map command shown?

 

A. The Serial0/0 interface is passing traffic.
B. The DLCI 100 was dynamically allocated by the router.
C. The Serial0/0 interface acquired the IP address of 172.16.3.1 from a DHCP server.
D. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud.
E. The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP.
Answer: E

55. What is the function of the Cisco IOS command ip nat inside source static 10.1.1.5 172.35.16.5?

A. It creates a global address pool for all outside NAT transactions.
B. It establishes a dynamic address pool for an inside static address.
C. It creates dynamic source translations for all inside local PAT transactions.
D. It creates a one-to-one mapping between an inside local address and an inside global address.
E. It maps one inside source address to a range of outside global addresses.

Answer: D

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