2020 Optical Fiber Communications Engineering(南京信息职业技术学院)1458788441 最新满分章节测试答案

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-05-25到2020-09-15
本篇答案更新状态:已完结

【作业】Task 1 Cognition of Optical Fiber Communication System Coursework 1

1、 问题:Please refer to the data to list the optical communication technologies commonly used at present, and compare their characteristics.
评分规则: 【 Three or more technologies should be given
】

【作业】Task 3 Cognition of SDH transmission network Task 3 assignment

1、 问题: Briefly describe the advantages and disadvantages of SDH.
评分规则: 【 the advantages of SDH: in terms of interface, the use of worldwide unified standards and specifications; multiplexing mode, the use of byte interpolation multiplexing, so that the position of low-speed SDH signal in the frame of high-speed SDH signal is uniform and regular, that is to say, it is predictable; in terms of operation and maintenance, SDH has rich overhead bytes, so that the monitoring function of the network is greatly enhanced; compatibility, SDH has a strong compatibility. 
The disadvantages of SDH: low frequency band utilization, complex pointer adjustment mechanism, and the impact of extensive use of software on system security. 
】

【作业】Task 4 SDH transmission equipment networking Task 4 assignment

1、 问题:This paper briefly describes the function of NCP board of ZXMP S320
评分规则: 【  Monitoring a single SDH device
 Interface and analyze the commands from the network management center, send corresponding operation instructions to each veneer, and forward the veneer message to the network manager at the same time. 
Control the alarm output of the network element and detect the external alarm input. 
Forced reset of veneers
】

【作业】Task 2 Designing an Ideal Optical Transmission Model Coursework 2

1、 问题:Please draw the basic structure composition of the optical transmitter.Please draw the basic structure composition of the optical receiver.
评分规则: 【 Correct structure
Correct component.
】

Task 7 DWDM Networking Foundation Test7

1、 问题:The working window commonly used in WDM technology is
选项：
A:850nm
B:1310nm
C:1550nm
D:1800nm
答案: 【1550nm】

2、 问题:The wavelength interval of 40-wave DWDM system is
选项：
A:0.4nm
B:0.8nm
C:20nm
D:30nm
答案: 【0.8nm】

3、 问题:G.694.1 is the standard for
选项：
A:SDH
B:CWDM
C:DWDM
D:MSTP
答案: 【DWDM】

4、 问题:The network element that realizes the functions of optical transmission, multiplexing and demultiplexing is
选项：
A:OTM
B:OLA
C:OADM
D:OXC
答案: 【OTM】

5、 问题:The optical transmission unit is configured in the network element
选项：
A:OTM
B:OLA
C:OADM
D:OXC
答案: 【OTM】

6、 问题:Which factor does not affect the transmission distance of DWDM?
选项：
A:attenuation
B:dispersion
C:nonlinear effect
D:electromagnetic interference
答案: 【electromagnetic interference】

7、 问题:In the reference configuration of the DWDM system specified in the G.692 protocol, MPI-S refers to
选项：
A:channel sender point
B:main path interface sender
C:main path interface receiver
D:channel receiver point
答案: 【main path interface sender】

8、 问题:The electric relay function is realized by OTM which can realize the rebirth of optical signal.
选项：
A:正确
B:错误
答案: 【正确】

9、 问题:In order to reduce the attenuation, the optical signal through OSC channel needs to be amplified.
选项：
A:正确
B:错误
答案: 【错误】

10、 问题:Similar to EDFA, Raman amplifiers can only work in C and L bands.
选项：
A:正确
B:错误
答案: 【错误】

【作业】Task 8 OTN Networking Foundation Coursework8

1、 问题:Please explain the role of each overhead in the OTN frame
评分规则: 【 each overhead one point
】

【作业】Task 7 DWDM Networking Foundation Courework7

1、 问题:Please explain how the three multiplexing technologies of TDM, WDM and SDM are applied in the optical fiber communication system.
评分规则: 【 Three points for each technology
】

Task 8 OTN Networking Foundation Test8

1、 问题:The electrical layer of OTN does not include
选项：
A:OPU
B:ODU
C:OTU
D:OCH
答案: 【OCH】

2、 问题:The FEC overhead is generated at the 
选项：
A:OPU
B:ODU
C:OTU
D:OCH
答案: 【OTU】

3、 问题:The optical link between network elements of OTN is called
选项：
A:OTS
B:OMS
C:OCH
D:OXC
答案: 【OTS】

4、 问题:The first field of the OTN frame is
选项：
A:FAS
B:SM
C:PM
D:TDM
答案: 【FAS】

5、 问题:The OTN frame size is
选项：
A:9x270xN
B:4×4080
C:1024
D:53
答案: 【4×4080】

6、 问题:The framing of OTN data is completed in
选项：
A:OTU
B:OM
C:OLA
D:OD
答案: 【OTU】

7、 问题:When the client signal of the OTN system is adapted, it firstly enter
选项：
A:OPU
B:ODU
C:OTU
D:OCH
答案: 【OPU】

8、 问题:Compared with DWDM network, OTN improves the speed of optical transmission.
选项：
A:正确
B:错误
答案: 【错误】

9、 问题:The frame size of OTN is variable
选项：
A:正确