单选题
单选题
单选题在100BASE-TX的24 口交换机中,若采用全双工通信,每个端口通信的数据速率最大可以达到( )
单选题HTML中的分行标记是______。
单选题数据库系统与文件系统的主要区别是 (23) 。
单选题用IE访问工业与信息化部教育与考试中心主页,正确的URL地址是______。
单选题下列( )命令不能用来关闭 Linux 操作系统
单选题The major problem with E-mail is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day. In addition, mail boxes require some management to (74) messages or archive those that might be required later. Senders don't always know about your E-mail backlog and often send (75) messages.
单选题Windows NT的结构可分为保护子系统和NT执行体两部分,其中保护子系统的结构为 (50) 。它有 (51) 等两种类型。在Windows NT中,网络功能 (52) ,它是一种 (53) 。
单选题下列叙述中错误的是 (30) 。
单选题某局域网通过两台路由器划分为3个子网,拓扑结构和地址分配如图6-3所示。为路由器R1的e0端口设置一条到达192.168.3.0/24网段的默认路由的配置语句是(49)。
单选题IP multicasting is a set of technologies that enable efficient delivery of data to manylocations on a network.Rather than making multiple copies of a message intended to bedistributed to multiple recipients at the (71) of origin of a message,multicasting initiallysends just one (72) and does not copy it to the individual recipients until it reaches theclosest common point on the network,thereby (73) the bandwidth consumed.Networkperformance is significantly (74) because it isn’t bogged down with the processing andtransmission of several large data files;each receiving computer doesn’t have to (75) thetransmitting server for the file.
单选题对8位代码01101101进行奇偶校验,正确的结果是 (23) 。
单选题若把操作系统看做计算机系统资源的管理者, (6) 不属于操作系统所管理的资源。
单选题调制解调器(Modem)的功能是实现 (2) 。在Internet上,可以利用 (3) 与网友直接聊天。
单选题计算机通信网中传输的是 (22) 。
单选题The error messages given by a C compiler show the message text, the most common cause of the error, and a suggestion for ______ the error. A.updating B.fixing C.changing D.Editing
单选题某计算机有4MB的内存,并按字节编址,为了能存取其中的内容,地址寄存器至少需要 (11) 位。平时,程序员所使用的地址为 (12) 。
单选题以下选项中,可以用于Internet信息服务器远程管理的是______。 A.Telnet B.RAS C.FFP D.SMTP
单选题
