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CCNA 640-802 V14 题库(51-55)

2008-07-17 09:54 佚名 51CTO.com 字号:T | T
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本文内容为Testinside CCNA 640-802 V14 最新题库(51-55)试题及答案。

AD:

51. Which two statements best describe the wireless security standard that is defined by WPA? (Choose two.)

A. It specifies use of a static encryption key that must be changed frequently to enhance security.

B. It requires use of an open authentication method.

C. It specifies the use of dynamic encryption keys that change each time a client establishes a connection.

D. It requires that all access points and wireless devices use the same encryption key.

E. It includes authentication by PSK.

Answer: CE

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

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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