对象的服务器之间的 RTT 。假设对象传输时间为 0 ,从客户点击连接到接收到对象需要多长时间? The total amount of time to get the IP address isn RTT RTT RTT ???? 21. Once the IP address is known, O RTT elapses to set up the TCP connection and another O RTT elapses to request and receive the small object. The total response time isn o RTT RTT RTT RTT ????? 212 4) Referring to question (4), suppose the page contains three very small objects. Neglecting transmission times, how much time elapses with (a) nonpersistent HTTP with no parallel TCP connections, (b) nonpersistent HTTP with parallel connections, (c) persistent HTTP with pipelining. 提到的问题( 4 ),假设该页面包含三个非常小的物体。忽略的传输时间,间隔时间多长(一) 非持久的 HTTP 没有并行的 TCP 连接,(b) 与并行连接的非持久的 HTTP ,(c) 与持久 HTT P 流水线。 a)oon RTT RTT RTT RTT 232 1?????? no RTT RTT RTT ????? 18 . b)oon RTT RTT RTT RTT 22 1?????
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