
【名词&注释】
数据交换(data exchange)、数据通信(data communication)、基本单位(basic unit)、分组交换网(packet switching network)、中继线(junction)、港澳台、电信业务经营者
[单选题]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
查看答案&解析
点击获取本科目所有试题
举一反三:
[单选题]以下业务中,属于国际、港澳台电话业务的是()业务。
A. 200
B. 108
C. 600
D. 700
[单选题]下列选项中,( )不能度量存储器容量。
A. Byte
B. Bps
C. KB.
D. MB
[单选题]以下关于X.25分组交换网的叙述中,不正确的是( )。
A. 在中继线和用户线上传输时采用逐段独立的差错控制
B. 网络采用固定长度的“信元”作为数据交换的基本单位
C. 网络仅提供虚电路方式的数据通信服务,不提供数据报服务
D. 网络采用存储转发方式,可实现异种速率和类型的终端之间的通信
[多选题]【Recently, telecommunication carriers has been building All-IP core networks in order to effectively support various kinds of fixed and mobile broadband services,such as up-and down-loading You tube and SNS(Social Networking Services)with rich video file,as well as broadband mobile Internet services. Such All-IP network is called NGN(Next Generation Network),which guarantees secure authentication and QoS such as the bandwidth and the delay. From the service point of view,convergence of fixed and mobile communications,known as FMC(Fixed Mobile Convergence)is becoming a key increasing new services and expanding the market.】 Form the paragraph above,we can see that()can be defined as a network that can effectively support various kinds of fixed and mobile broadband services,with guaranteed QoS in terms of()and etc. And the key to develop new services and gain larger market share should be()
A. All-IP access network
B. broad band network
C. NGN
D. social network A.data rate
E. error rate
F. availability
G. band width, delay A.mobile communications
H. Internet
I. All-IP core network
J.
K. Fixed Mobile
L. Convergence
[单选题]下列业务中, ( )业务是基于智能网提供的被叫集中付费业务。
A. 200
B. 600
C. 700
D. 800
本文链接:https://www.zhukaozhuanjia.com/download/kw9qdv.html