2. 计算机
  3. When　you　think　of　the　Internet,　you　probably　think　of　".com."　Just　what　do　those　three　letters　at　the　end　of　a　World　Wide　Web　ad

When　you　think　of　the　Internet,　you　probably　think　of　".com."　Just　what　do　those　three　letters　at　the　end　of　a　World　Wide　Web　ad

admin2009-02-15  15
问题 When　you　think　of　the　Internet,　you　probably　think　of　".com."　Just　what　do　those　three　letters　at　the　end　of　a　World　Wide　Web　address　mean?　Every　computer　that　hosts　data　on　the　Internet　has　a(71)numerical　address.　For　example,　the　numerical　address　for　the　White　House　is　198.137.240.100.　But　since(72)people　want　to　remember　long　strings　of　numbers,　the(73)was　developed.　It　is　a　critical　part　of　the　Internet’s　technical　infrastructure,　correlates　a　numerical　address　to　a　word.　To(74)the　White　House　website,　you　could　type　its　numerical　address　into　the　address　box　of　your　web　browser.　But　most　people　prefer　to　use　"www.　whitehouse.　gov."　In　this　case,　the　domain　name　is(75).
选项 A、DHCP
B、DNS
C、RIP
D、WINS
答案B
解析
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