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Cisco試題庫:ccna真題(下)(4)

時間:2013-11-22 16:53:00   來源:無憂考網     [字體: ]
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17: a new network is being designed for your company, acme, inc. if you use a class c ip network, which subnet mask will provide one usable subnet per department while allowing enough usable host addresses for each department specified in the table?   department   number of users      corporate   7      customer support   15      financial   13      hr   7      engineering   16      a. 255.255.255.0

  b. 255.255.255.192

  c. 255.255.255.224

  d. 255.255.255.240

  e. 255.255.255.248

 18: which of these protocols provides data transport, relying on the error correction capabilities of the application itself?

  a. udp

  b. tcp

  c. snmp

  d. icmp      19: which of the following are used by tcp to ensure reliable delivery of data? (choose two.)

  a. mac address resolution

  b. sequence numbers

  c. acknowledgments(GbbFi,tk k&dF={(GbbFi,tk k&dF={t$

  d. ping

  e. routing updates      20: you discover that you are able to adjust the window size of the tcp segment. you increase the window size to test the results. what will you observe happening on your network?

  a. increased throughput

  b. decreased throughput

  c. increased latency

  d. decreased reliability