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CCNA 640-802 V14 题库(186-190)

2008-07-17 17:23 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(186-190)试题及答案。

AD:

186. Refer to the exhibit. Why are two OSPF designated routers identified on Core_Router?

  

A. Core_Router is connected to more than one multiaccess network.

B. The router at 208.149.23.130 is a secondary DR in case the primary fails.

C. Two router IDs have the same OSPF priority and are therefore tied for DR election.

D. The DR election is still underway and there are two contenders for the role.

Answer: A

187. Which two practices help secure the configuration utilities on wireless access points from unauthorizedaccess? (Choose two.)

A. assigning a private IP address to the AP

B. changing the default SSID value

C. configuring a new administrator password

D. changing the mixed mode setting to single mode

E. configuring traffic filtering

Answer: BC

188. Refer to the exhibit. The network administrator has discovered that the VLAN configuration of SwitchC isnot synchronized with the rest of the switched network. Why is SwitchC not receiving VTP updates?

  

A. SwitchB is not relaying VTP advertisements to SwitchC.

B. SwitchC has fewer existing VLANs than does SwitchA.

C. SwitchA supports a greater number of VLANs than does SwitchC.

D. SwitchC has a revision number higher than that being advertised.

E. SwitchC should be operating in VTP server mode to receive VTP updates.

F. SwitchB should be operating in VTP server or client mode to relay VTP updates.

Answer: D

189. DNS servers provide what service?

A. Given an IP address, they determine the name of the host that is sought.

B. They convert domain names into IP addresses.

C. They run a spell check on host names to ensure accurate routing.

D. They map individual hosts to their specific IP addresses.

Answer: B

190. What TCP/IP stack configuration features can DHCP provide, in addition to assigning an IP address? (Choose three.)

A. default gateway

B. DNS servers

C. FTP server

D. helper address

E. subnet mask

F. TFTP server

Answer: ABE

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