2018年中级通信工程师互联网技术每日一练（8-1）

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1、IP地址129.168.1.1的地址类型是（），其掩码为（）。

A．A类

B．B类

C．C类

D．D类

A．255.255.255.255

B．255.255.255.0

C．255.255.0.0

D．255.0.0.0

2、在图像存储中，将不经常用到的，访问量不大的数据，存放在性能较低的存储设备上，这种存储方式叫做（）。

A．离线存储

B．近线存储

C．静态存储

D．备份存储

3、IPV6支持任播地址，网络处理目的地为任播地址的数据报的方式为（）。

A．将数据报投递到当前子网内任意一台计算机

B．将数据报投递到当前子网内所有计算机

C．将数据报投递到一组计算机中的任意一台计算机

D．将数据报投递到一组计算机中的所有计算机

4、数值数据在计算机中的二进制表示方法有很多种，目前广泛使用的X86系列PC机Windows系统中数值表示的方法是（）。

A．原码

B．补码

C．反码

D．ASCII码

5、当电信业务经营者发现电信用户出现异常的巨额电信费用，即突然出现超过电信用户此前3个月平均电信费用（）以上的费用时，电信业务经营者应当尽可能迅速告知电信用户，并采取相应的措施。

A．2倍

B．3倍

C．5倍

D．8倍

6、当两个规模差异较大的网络实现互联时，两者从互联获得的收益关系是（ ）。

A．小型网络所获得的收益通常要比大型网络少

B．小型网络所获得的收益通常要比大型网络多

C．两网络所获得的收益完全相等

D．两网络所获得的收益无法比较

7、按照国际电信联盟IMT-2000的标准定义，3G业务为慢速移动用户提供的接入速率应达到（ ）。

A．144kbps

B．384kbps

C．2Mbps

D．20Mbps

8、【With the 4G telecommunications systems now starting to be deployed,people are looking towards the development of 5th generation or 5G technology services.Although the deployment of any wireless or cellular system take years,development of the 5G technology systems is being investigated.The new 5G technologies will need to be chosen developed and perfected to enable timely and reliable deployment. The new 5th generation,5G technology for cellular systems will probably start to come to fruition around 2020.

The current status of the 5G technology for cellular systems is very much in the early development stages.Many companies are looking into the technologies that could be used to become part of the system.In addition to this,a number of universities have set up 5G research units focused on developing the technologies for 5G. In addition, the standards bodies,particularly 3GPP are aware of the development but are not actively planing the 5G systems yet.Many of the technologies to be used for 5G will start to appear in the systems used for 4G and then as the new 5G cellular system starts to formulate in a more concrete manner,they will be incorporated into the new 5G cellular system.

The major issue with 5G technology is that there is such an enormously wide variation in the requirements:super fast downloads to small data requirements for IoT than any one system will not be able to meet these needs.Accordingly a layer approach is likely to be adopted.As one commentator stated:5G is not just a mobile technology.It is ubiquitous access to high & low data rate services.】

Based on the paragraph above,at present,5G technology for cellular systems （ ）, many of the technologies to be used for 5G （ ） in the systems used for 4G,the major issue facing with 5G technology is （ ）.

A．has matured

B．has setup its standards

C．is very much in the early development stages

D．is in use

A．is being developed

B．already appeared

C．will not appear

D．will start to appear

A．super fast downloads

B．small data requirements for IoT

C．4G system has already satisfied these needs

D．an enormously wide variation in the requirements

9、通过部署智能网，交换层的任务变更为（ ）。

A. 交换与业务控制

B. 只完成最基本的呼叫连接

C. 与静止轨道卫星相等

D. 不确定

10、电子商务系统的功能不包括（ ）。

A.内容管理

B.协同处理

C.面对面交易

D.电子交易

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