【名词&注释】
国家安全、时分多址(tdma)、码分多址(cdma)、宽带网(broadband network)、长途电话(toll telephone)、数字网(digital network)、频分多址(frequency division multiaddress)、公用电话交换网(public switched telephone network)、电信业务经营者、服务于(service to)
[多选题]电信业务经营者在电信网络的设计、建设和运行中，应当做得与国家安全和电信网络安全的需求（）。
A. 同步规划
B. 同步建设
C. 同步运行
D. 同步管理
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举一反三：
[单选题]修改路由参数的指令是()。
A. EXROI
B. EXRBC
C. EXROP
D. EXDRI
[单选题]网状网稳定性好可靠性高，通常用于（ ）网络。[1分]
A. 核心
B. 用户
C. 配线
D. 接入
[多选题]智能网的目标是服务于(service to)所有的基础网络，包括（）和宽带网。
A. 公用电话交换网(public switched telephone network)
B. 综合业务数字网
C. 移动通信网
D. 公用分组交换数据网
[多选题]通信设备障碍的分类有()。
A. 电路障碍
B. 设备障碍
C. 人为障碍
D. 不明障碍
[单选题]我国用户进行国际长途电话直拨时，国际字冠是（ ）。
A. 86
B. 00
C. 001
D. 108
[多选题]【 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 cyber physical 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).
A. environmental monitoring
B. intelligent transportation
C. energy management
D. all ofthe above
[单选题]低轨道卫星和静止轨道卫星相比，其运动速度（）。
A. 比静止轨道卫星快
B. 比静止轨道卫星慢
C. 与静止轨道卫星相等
D. 时快时慢
[单选题]当以传输信号的载波频率的不同划分来建立多址接人时，称为()。
A. 频分多址(frequency division multiaddress)方式
B. 时分多址方式
C. 码分多址方式
D. 频编码多址
[单选题]将波长间隔在（）的复用称之为密集波分复用（DWDM）。
A. 零点零零几纳米
B. 零点零几纳米
C. 零点几纳米
D. 零点几纳米
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