2. 计算机
  3. A　socket　is　basically　an　end　point　of　a　communication　link　between　two　applications.　Sockets　that　extend　over　a　network　connect　

A　socket　is　basically　an　end　point　of　a　communication　link　between　two　applications.　Sockets　that　extend　over　a　network　connect　

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问题 A　socket　is　basically　an　end　point　of　a　communication　link　between　two　applications.　Sockets　that　extend　over　a　network　connect　two　or　more　applications　running　on(61)computers　attached　to　the　network.　A　socket(62)two　addresses:(63).　Sockets　provide　a(64)communication　channel　between　one　or　more　systems.There　are(65)sockets　separately　using　TCP　and　UDP.
选项 A、full-duplex
B、half-duplex
C、simplex
D、complex
答案A
解析
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