81、1MB表示的字节数是（）。
A．1048576
B.1024
C.1000000
D.1000
82、（）是连接外设与主机的硬件。
A．USB接口
B.控制器
C.总线
D.I/O接口
83、RAM具有的特点是（）。
A．少量存储
B.存储在其中的信息可以永久保存
C.一旦断电，存储在其上的信息将全部消失且无法恢复
D.存储在其中的数据不能改写
84、手机厂商宣传的手机64位处理器，是指CPU一次性可处理的数据量是（）字节。
A．1个
B.2个
C.4个
D.8个
85、有关计算机性能指标的时钟主频，下面的描述中，错误的是（）。
A．时钟主频是指CPU的时钟频率
B.时钟主频的高低一定程度上决定了计算机速度的高低
C.主频以MHz为单位
D.一般来说，主频越高，速度越快
86、计算机软件系统包括（）。
A．系统软件和应用软件
B.编译系统和应用软件
C.数据库及其管理软件
D.程序及其相关数据
87、大数据时代，数据使用的关键是（）。
A．数据收集
B.数据存储
C.数据分析
D.数据再利用
88、下列选项中，（）操作可能会感染病毒。
A．打开电子邮件
B.打开word文档
C.浏览网页
D.以上操作均可能
89、下列选项中，关于程序设计语言描述错误的是:（）。
A．C语言编写的程序必须经过编译或解释后才可以运行
B.用高级语言编写的程序被称作"源程序"
C.汇编语言就是机器语言，与CPU类型有关
D.高级语言经历了面向过程，面向对象到面向组件几个发展阶段
90、数据库系统中，DBA使用的数据视力用（）描述。
A．外模式
B.内模式
C.存储模式
D.概念模式

91-92
在通信系统中，SDN是网络虚拟化的一种实现方式，其英文全称是(  )。当前接入互联网的重要手段之WiFi的英文全称是()。
（91）A．Software Defined Network
B.Sun Developer Network
C.Specially Designated Network
D.Switched Digital Network
（92）A．Wireless Fidelity
B.Wire Fidelity
C.Wireless Find
D.Wireless Fine
93、Recently,telecommunication carriers has been building(  )core networks in order to effectively support various kinds of fixed and mobile broadband services.
A．NGN
B.social network
C.mobile network
D.AII-IP
94、When we use VolP service，the voice packets over the Internet arrive at their destination in a（）stream.
A．burst
B.delayed
C.interrupted
D.continuous
95、4G is the fourth generation wireless technology adopted by the(  )and carriers around the world.
A．ISO
B.IEEE
C.ITU
D.IETF
96、SMS was originally designed as part of(  )，but is now available on a wide range of networks，including 3G and 4G networks.
A．PHS
B.AMPS
C.GSM
D.GPRS
97、（）was frozen in December 2008 and this has been the basis for the first wave ofLTE equipment.LTE specifications are very stable，with and added benefit of enhancements having been introduced in all subsequent 3GPP Releases.
A．Release 1
B.Release 8
C.Release 10
D.Release 15
98-100
【The Internet ofthings(IoT)is the inter-networking ofphysical devices，vehicles，buildings，and other items embedded with electronics，software，sensors，actuators，and network connectivity which enable these objects to collect and exchange data.
In 2013 the Global Standards Initiative on Internet ofThings(IoT-GSI)defined the 10T as"a global infrastructure for the information society，enabling advanced services by interconnecting(physical and virtual)things based on existing and evolving interoperable information and communication technologies"and for these purposes a"thing"is"an object ofthe physical world(physical things)or the information world(virtual things).which is capable ofbeing identified and integrated into communication networks".The 10T allows objects to be sensed or controlled remotely across existing network infrastructure，creating opportunities for more direct integration of the physical world into computer-based systems，and resulting in improved efficiency.Accuracy and economic benefit in addition to reduced human intervention.
When IoT is augmented with sensors and actuators，the technology becomes an instance of the more general class of cyber­physical systems，which also encompasses technologies such as smart grids，virtual power plants，smart homes，intelligent transportation and smart cities.Each thing is uniquely identifiable through its embedded computing system but is able to interoperate within the existing Intemet infrastructure.Experts estimate that the 10T wi l1 consist of about 30 bi l1ion objects by 2020.】
Based on the paragraph above，we know that the applications ofthe 10T include(98).RFID technology makes it possible to automatically(99)every object on the Internet ofthings，and is the foundation ofnetworking.From the industry point of view，IoT is mainly involved in industries including(100).
（98）A．environmental monitoring
B.intelligent transportation
C.energy management
D.all ofthe above
（99）A．identify
B.find
C.track
D.encrypt
（100）A．electronics
B.communication
C.software
D.all of the above