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与HTTP相比, HTTPS 协议将传输的内容进行加密，更加安全。 HTTPS 基于（40）安全协议，其默认端口是（41）。(40)A.RSA B.DES C.SSL D.SSH(41)A.1023 B.443 C.80 D.8080
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routing in circuit-switching networks has traditionally involved a static routing strategy with the use of（71）paths to respond to increased load . modern routing strategies provide more adaptive and flexible approaches . the routing function of a packet-switching network attempts to find the least-cost route through the network , with cost based on the number of （72）,expected delay , or other metrics in virtually all packet-switching networks , some sort f adaptive routing technique is used . adaptive routing algorithms typically rely on the（73）information about traffic conditions among nodes . in most cases , adaptive strategies depend n status information that is（74）at one place but used at another . there is a tradeoff here tween the quality of the information and the amount of（75）. the exchanged information itself a load on the constituent networks , causing a performance degradation.(71)A.only B.single C.alternate D.series(72)A.hops B.sites C.members D.points(73)A.exchange B.transportationC.reception D.transmissio(74)A.rejected B.collected C.discarded D.transmitted(75)A.packets B.information C.data D.overhead
计算机执行指令的过程中，需要由（1）产生每条指令的操作信号并将信号送往相应的部件进行处理，已完成指定的操作。
DMA控制方式是在（2）之间直接建立数据通路进行数据的交换处理。
在（3）校验方法中，采用模2运算来构造校验位。
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