C&C08机模块内交换网络以( )Mb/sHW进行时分交换。
A.2
B.8
C.16
D.32
A.2
B.8
C.16
D.32
第2题
A.双绞线传输率较低,一般为几个Mb/s
B.光纤传输率很高,为几百Mb/s
C.同轴电缆性价比较高,只能用于宽带传输
D.特殊情况下,可以使用微波、无线电和卫星等媒体传输数据
第5题
A、机房建在距离大楼外侧
B、机房内应设等电位连接网络
C、设置安全防护地与屏蔽地
D、在机房内布置设备的安放位置时,应该放在比较接近中心的位置,以与外墙特别是外墙立柱保持一定的距离
第6题
B、无线通信模块支持端口数据监视功能,监视当前模块状态、IP地址、模块与无线服务器之间的心跳、模块与终端之间的心跳等;具备网络中断自动重连功能;
C、配电终端与主站建立连接时间应小于60s;。
D、接受并执行主站系统下发的对时命令,光纤通道对时精度应不大于1s,无线通信方式对时精度应不大于10s。
第7题
从下面提供的答案中选出应填入下列英文语句中______内的正确答案。
In(1)software, one question of near-universal interest is how rapidly Windows NT, which began shipping last summer, will be(2)in the marketplace and for what uses. For the most part, observers are(3)the operating system's long term prospects, but expect it to remain on(4)rather than desktops during 1994, saying that it won't become a mainstream product until(5)PCs typically have 16 to 24 MB of RAM, which is unlikely to happen next year.
供选择的答案:
(1) applications (2) accepted (3) clients (4) enthusiastic (5) servers
(6) desktop (7) systems (8) replaced