
【名词&注释】
电信网(telecommunication network)、固定电话网(fixed telephone network)
[单选题]手机更新周期这一参数是由系统设置的,可从0-( )。
A. 255
B. 355
C. 455
D. 555
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举一反三:
[多选题]固定电话网是提供固定电话业务的电信网,其常见的类型包括()。
A. ISDN
B. PSTN
C. N-ISDN
D. B.ISDN
[单选题]CDMA系统(IS-95)使用了(36) 。
A. A.跳频扩频
B. 直接序列扩频
C. C.T
E. D.跳频扩频与直接序列扩频的混合
[单选题]The exponential growth of mobile broadband traffic is certainly () by both, the increasing demand for known and new data services,such as mobile internet access, social networking,location-based services/personal navigation and so on, and the data () and storage capabilities of state-of-the-art terminals, such as smartphones and the most recent tablets.
A. lead
B. creating C、caused
C. composing A、processing
D. calculatiaon C、mining
E. display
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