2012年思科认证(CCNA)考试练习题精选11
09-06
0


51. What type of network is best when using static routes (当使用静态路由时,何种类型的网络是最好的.?

  A. A large network with hundreds of routers and networks

  B. A complex internetwork that changes often

  C. An autonomous system with multiple connections to other autonomous systems

  D. A small network with few routers and infrequent changes   


52. What is an autonomous system (什么是自治系统.?

  A. An area

  B. A domain

  C. A contiguous set of routers defined within a larger internetwork, that do not share routing information with the external internetwork

  D. All of the above

  E. None of the above

  
53. What is a default route (什么是默认路由.?

  A. A type of static route

  B. A destination for any nonroutable packet

  C. Gateway of last resort

  D. All of the above

  E. None of the above

  
54. What type of information does a distance vector router build its routing table with (距离向量路由器用何种类型的信息来建立它的路由选择表.?
  
  A. 呼叫packets

  B. Second-hand information

  C. LSPs

  D. First-hand information

  
55. What is the count to infinity problem (什么是无限计数问题.?

  A. A routing loop that results from the way distance vector protocols use second-hand information

  B. The inability of routers to process more than 16 hops

  C. The excessive CPU overhead presented by distance vector algorithms

  D. The result of using both RIP and IGRP on the same internetwork
 

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