在TD-SCDMA系统2：4时隙配比下，单载波最多可同时配置多少套128kbps的MBMS业务？（）

A:6套 B:4套 C:3套 D:5套

BGAN700通信传送128kBps速率数据，最小信号值不小于（）.

A:30DBHz B:40DBHz C:54DBHz D:57DBHz

能支持128Kbps速率的设备是（）。

A:2601DTU B:2603DTU C:2701DTU D:2703DTU

8个128Kbps的信道通过统计时分复用到一条主干线路上，如果该线路的利用率为90%，则其带宽应该是（）Kbps。

A:922 B:1024 C:1138 D:2276

Serialization delay and（）delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the（）on the wire, and queuing delay (depth of the queue) are improved by increasing the（）from a 128kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an （）in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the（）of the application will only result in an increased bandwidth with no positive effects on performance.

A:electricity B:digital C:data D:variable

Serialization delay and（）delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the（）on the wire, and queuing delay (depth of the queue) are improved by increasing the（）from a 128kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an （）in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the（）of the application will only result in an increased bandwidth with no positive effects on performance.

A:memory B:cache C:bandwidth D:delay

一首5分钟的歌曲用128Kbps的MP3文件保存，需要占用的存储空间为______。

A:4800KB B:5MB C:640KB D:128KB

一首5分钟的歌曲用128Kbps的MP3文件保存，需要占用的存储空间为______。

A:4800KB B:5MB C:640KB D:128KB