在Windows操作系统中，某主机运行（）命令后显示的信息如下图所示，则该网卡IP地址为（），默认网关为（）。 该网卡IP地址为（）。

A:119.245.67.209 B:119.245.67.254 C:127.0.0.1 D:240.0.0.0

在Windows操作系统中，某主机运行（）命令后显示的信息如下图所示，则该网卡IP地址为（），默认网关为（）。 默认网关为（）。

A:119.245.67.209 B:119.245.67.254 C:127.0.0.1 D:240.0.0.0

The presentation layer is concerned with the （）and semantics of the information exchanged between two systems. The processes in two systems are usually exchanging information in the form of character （）, numbers, and so on. The information should be changed to bit （） before being transmitted. Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods. The presentation layer at the sender changes the information from its sender-dependent format into a common format. The presentation layer at the receiving machine changes the common format into its （） -dependent format.

The presentation layer is concerned with the （）and semantics of the information exchanged between two systems.

A:frequency B:syntax C:dialog D:format

The presentation layer is concerned with the （）and semantics of the information exchanged between two systems. The processes in two systems are usually exchanging information in the form of character （）, numbers, and so on. The information should be changed to bit （） before being transmitted. Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods. The presentation layer at the sender changes the information from its sender-dependent format into a common format. The presentation layer at the receiving machine changes the common format into its （） -dependent format.

The processes in two systems are usually exchanging information in the form of character （） , numbers, and so on.

A:numbers B:functions C:strings D:codes

The presentation layer is concerned with the （）and semantics of the information exchanged between two systems. The processes in two systems are usually exchanging information in the form of character （）, numbers, and so on. The information should be changed to bit （） before being transmitted. Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods. The presentation layer at the sender changes the information from its sender-dependent format into a common format. The presentation layer at the receiving machine changes the common format into its （） -dependent format.

The information should be changed to bit （）before being transmitted.

A:systems B:characters C:layers D:streams

The presentation layer is concerned with the （）and semantics of the information exchanged between two systems. The processes in two systems are usually exchanging information in the form of character （）, numbers, and so on. The information should be changed to bit （） before being transmitted. Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods. The presentation layer at the sender changes the information from its sender-dependent format into a common format. The presentation layer at the receiving machine changes the common format into its （） -dependent format.

Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods.

A:capability B:interoperability C:reliability D:dependability

The presentation layer is concerned with the （）and semantics of the information exchanged between two systems. The processes in two systems are usually exchanging information in the form of character （）, numbers, and so on. The information should be changed to bit （） before being transmitted. Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods. The presentation layer at the sender changes the information from its sender-dependent format into a common format. The presentation layer at the receiving machine changes the common format into its （） -dependent format.

The presentation layer at the receiving machine changes the common format into its （） -dependent format.

A:receiver B:user C:server D:customer

某网络拓扑结构如图1-1所示，网络中心设在图书馆，均采用静态IP接入。   由图1-1可见，图书馆与行政楼相距350米，图书馆与实训中心相距650米，均采用千兆连接，那么①处应选择的通信介质是（1），②处应选择的通信介质是（2），诜择这两处介质的理由是（3）。 （1）、（2）备选答案（每种介质限选一次）： A.单模光纤 B.多模光纤 C.同轴电缆 D.双绞线

（1）A.单模光纤
（2）B.多模光纤
（3）图书馆和实训中心相距650米，通常多模光纤支持距离为550米以内，故（1）应选单模光纤：图书馆与行政楼之间相距350米，同轴与双绞线传输距离达不到，故选多模光纤。

某网络拓扑结构如图1-1所示，网络中心设在图书馆，均采用静态IP接入。   从表1-1中为图1-1的③~⑤处选择合适的设备，填写设备名称（每个设备限选一次）。

③Routerl或路由器
④Switchl或三层交换机
⑤Switch2或二层交换机

某网络拓扑结构如图1-1所示，网络中心设在图书馆，均采用静态IP接入。   该网络在进行lP地址部署时，可供选择的地址块为192.168.100.0/26，各部门计算机数量分布如表1-2所示。要求各部门处于不同的网段，表1-3给出了图书馆的lP分配范围，请将其中的（4）、（5）处空缺的主机地址和子网掩码填写在答题纸的相应位置。 为hostl配置Intemet协议属性参数。 lP地址：（6）；（给出一个有效地址即可） 子网掩码：（7）；

（4）192.168,100.14
（5）255.255.255.240
（6）192.168.100.33~192.168.100.62内任一地址
（7）255.255.255.224