网络协议也是计算机网络的重要组成部分。
网络协议也是计算机网络的重要组成部分。
相关考题：
When the system upon which a transport entity is running fails and subsequently restarts,the(21) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connections can close the connection using a(22)timer. This timer measures the time the transport machine will continue to await an (23) of a transmitted segment after the segment has been retransmitted the maximum number of times.When the timer (24),the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the (25) number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.空白处（21）应选择（）A、dataB、stateC、signalD、control
EPON是一种重要的接入技术，其信号传输模式可概括为（）。A、采用广播模式，上下行均为CSMA/CD方式B、采用点到多点模式，下行为广播方式，上行为TDMA方式C、采用点到点模式，上下行均为WDM方式D、采用点到点模式，上下行均为CSMA/CD方式
在PPP链路建立以后，接着要进行认证过程。首先由认证服务器发送一个质询报文，终端计算该报文的Hash值并把结果返回服务器，然后服务器把收到的Hash值与自己计算的Hash值进行比较以确定认证是否通过。在下面的协议中，采用这种认证方式的是（）。A、CHAPB、ARPC、PAPD、PPTP
面向连接的服务意味着（）的提交。A、不保证可靠和顺序B、不保证可靠，但保证顺序C、保证可靠，但不保证顺序D、可靠、顺序