北邮光网络阶段作业

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北邮光网络阶段作业一、单项选择题(共20道小题,共100.0分)1. (错误)在我国的SDH复用结构中所使用的三种容器分别是C-12、和C-4。

该容量是用于承载 PDH信号的。

A. C-3、1.544Mb/sB. AU-4、2.048Mb/sC. C-3、34Mb/sD. TU-3、140Mb/s知识点: 第5章学生答标准答[] C 案: 案:试题分得分: [0] 5.0 值:提示:2. (错误)指标反映出系统的抗干扰能力。

A. ESRB. SESRC. BERD. BBER知识点: 第5章学生答标准答[] B 案: 案:试题分得分: [0] 5.0 值:提示:3. (错误)AU-PTR用来指示VC-n净负荷在AU帧中的。

to East for the neijiang-Kunming highway bridge across the River, maming Creek Bridge, pond bridge, bridge, rongzhou bridge, and South Bridge. There are two bridges across the minjiang River: minjiang River Bridge on neikun highway bridge. Inner-city transportation: Shu Nan road, binjiang road, North Road, the minjiang River, the Yangtze River Road, lingangA. 终止位B. 中间位C. 平衡位D. 起始位知识点: 第5章学生答标准答[] D 案: 案:试题分得分: [0] 5.0 值: 提示:4. (错误)STM-1是同步数字体系的。

A. 逻辑功能块B. 三次群模块C. 二阶模块D. 最基本模块知识点: 第5章学生答标准答[] D 案: 案:试题分得分: [0] 5.0 值: 提示:5. (错误)在SDH网络中是按复接来实现同步复用的。

A. 帧B. 位C. 字节D. 比特知识点: 第5章学生答[] 标准答Cto East for the neijiang-Kunming highway bridge across the River, maming Creek Bridge, pond bridge, bridge, rongzhou bridge, and South Bridge. There are two bridges across the minjiang River: minjiang River Bridge on neikun highway bridge. Inner-city transportation: Shu Nan road, binjiang road, North Road, the minjiang River, the Yangtze River Road, lingang案: 案:试题分得分: [0] 5.0 值: 提示:6. (错误)传输设备与其他网元之间的接口,即网络节点之间的接口,常被称为。

A. NNIB. UNIC. VD. 2M接口知识点: 第5章学生答标准答[] A 案: 案:试题分得分: [0] 5.0 值: 提示:7. (错误)虚容器VC是由有效信息和用于对其进行操作、管理和控制的构成。

A. STM-1B. MSOHC. POHD. RSOH知识点: 第5章学生答标准答[] C 案: 案:试题分得分: [0] 5.0 值: 提示:to East for the neijiang-Kunming highway bridge across the River, maming Creek Bridge, pond bridge, bridge, rongzhou bridge, and South Bridge. There are two bridges across the minjiang River: minjiang River Bridge on neikun highway bridge. Inner-city transportation: Shu Nan road, binjiang road, North Road, the minjiang River, the Yangtze River Road, lingang8. (错误)STM-1的码速率等于。

A. 2.048Mbit/sB. 622 .08Mbit/sC. 139.264Mbit/sD. 155.520Mbit/s知识点: 第5章学生答标准答[] D 案: 案:试题分得分: [0] 5.0 值: 提示:9. (错误)是指复用器与中继器之间、中继器与中继器之间传输线路。

A. 通道B. 再生段C. 复用段D. 耗尽层知识点: 第5章学生答标准答[] B 案: 案:试题分得分: [0] 5.0 值: 提示:10.(错误)STM-4的码速率等于。

A. 2.048Mbit/sto East for the neijiang-Kunming highway bridge across the River, maming Creek Bridge, pond bridge, bridge, rongzhou bridge, and South Bridge. There are two bridges across the minjiang River: minjiang River Bridge on neikun highway bridge. Inner-city transportation: Shu Nan road, binjiang road, North Road, the minjiang River, the Yangtze River Road, lingangB. 155.520Mbit/sC. 622 .08Mbit/sD. 139.264Mbit/s知识点: 第5章学生答标准答[] C 案: 案:试题分得分: [0] 5.0 值: 提示:11.(错误)在使用EDFA的WDM系统中,色散受限中继距离可达到 km左右.A. 600B. 280C. 180D. 420知识点: 第5.2章学生答标准答[] A 案: 案:试题分得分: [0] 5.0 值: 提示:12.(错误)在WDM系统中采用以提高无电再生中继距离。

A. 光滤波器B. 光隔离器C. 光放大器D. 波长转换器知识点: 第5.2章学生答[] 标准答Cto East for the neijiang-Kunming highway bridge across the River, maming Creek Bridge, pond bridge, bridge, rongzhou bridge, and South Bridge. There are two bridges across the minjiang River: minjiang RiverBridge on neikun highway bridge. Inner-city transportation: Shu Nan road, binjiang road, North Road, the minjiang River, the Yangtze River Road, lingang案: 案:试题分得分: [0] 5.0 值: 提示:13.(错误)在WDM系统中只能通过采用技术来改善其色散特性。

A. 内调制B. 外调制C. 强度调制D. 相干解调知识点: 第5.2章学生答标准答[] B 案: 案:试题分得分: [0] 5.0 值: 提示:14.(错误)光纤的非线性效应与有关。

A. 入纤光功率B. 光纤的衰减系数C. 光纤的色散系数D. 数据速率知识点: 第5.2章学生答标准答[] A 案: 案:试题分得分: [0] 5.0 值: 提示:to East for the neijiang-Kunming highway bridge across the River, maming Creek Bridge, pond bridge, bridge, rongzhou bridge, and South Bridge. There are two bridges across the minjiang River: minjiang River Bridge on neikun highway bridge. Inner-city transportation: Shu Nan road, binjiang road, North Road, the minjiang River, the Yangtze River Road, lingang15.(错误)G.652光纤的色散最小点处于处。

A. 1510nmB. 1310nmC. 1550nmD. 1380nm知识点: 第5.2章学生答标准答[] B 案: 案:试题分得分: [0] 5.0 值: 提示:16.(错误)目前实用的波分复用器是一个光学器件。

A. 有源晶体B. 有源C. 无源半导体D. 无源纤维知识点: 第5.2章学生答标准答[] D 案: 案:试题分得分: [0] 5.0 值: 提示:17.(错误)在波分复用系统中的OTU负责将光信号转换成符合G.957技术标准的光信号。

A. 非标准波长B. 放大to East for the neijiang-Kunming highway bridge across the River, maming Creek Bridge, pond bridge, bridge, rongzhou bridge, and South Bridge. There are two bridges across the minjiang River: minjiang River Bridge on neikun highway bridge. Inner-city transportation: Shu Nan road, binjiang road, North Road, the minjiang River, the Yangtze River Road, lingangC. 整形D. 非线性知识点: 第5.2章学生答标准答[] A 案: 案:试题分得分: [0] 5.0 值: 提示:18.(错误)ASE噪声的产生是因为在系统中引入了。