多选题Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?（）Aoptical technology for transmitting up to 32 channels over multiple fiber strandsBoptical technology for transmittin

题目
多选题
Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?（）
A

optical technology for transmitting up to 32 channels over multiple fiber strands

B

optical technology for transmitting up to 16 channels over multiple fiber strands

C

a WDM system that is compatible with EDFA technology

D

a technology for transmitting more closely packed optical signals using more sophisticated transceiver designs than CWDM .

相似考题

1.在通信专业中，WDM的英文全称是（ ），“吞吐量”英文通常翻译为（ ）。[1分]A.Wierless Digital ModulationB.Wave Division MultiplexingC.Wavelength Division MultiplexingD.Wireless Data Modulation

2.对于LTE物理层的多址方案，在下行方向上采用基于循环前缀(Cyclic Prefix，CP)的正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)，在上行方向上采用基于循环前缀的单载波频分多址(Single Carrrier-Frequency Division Multiplexing Access，SC-FDMA)。()

3.F－OFDM英文全称是Flexible Orthogonal Frequency Division Multiplexing,中文叫灵活的正交频分复用。()此题为判断题(对，错)。

4.在通信专业中，WDM的英文全称是（），“吞吐量”英文通常翻译为（）。A．Wierless Digital Modulation B．Wave Division Multiplexing C．Wavelength Division Multiplexing D．Wireless Data Modulation A．traffic flow B．rate C．throughout D．throughput

更多“Dense Wavelength Division Multiplexing (DWDM) is an importan”相关问题

  • 第1题：

    In order to link data centers, a customer is evaluating the installation of fiber optic cable between buildings that are 400 meters apart. The installation will require multiple patch panels and cables.Which of the following is the most critical factor to consider for this installation?（）

    A. I/O rate

    B. bandwidth

    C. signal loss

    D. Dense Wavelength Division Multiplexing (DWDM)


    参考答案：C

  • 第2题：

    Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?()

    A. optical technology for transmitting up to 32 channels over multiple fiber strands

    B. optical technology for transmitting up to 16 channels over multiple fiber strands

    C. a WDM system that is compatible with EDFA technology

    D. a technology for transmitting more closely packed optical signals using more sophisticated transceiver designs than CWDM .


    参考答案：C, D

  • 第3题：

    Time division multiplexing时分多路复用


    正确答案: 一种通用的多路复用技术，容许多个发送方通过公共介质发送，各发送方轮流使用介质。

  • 第4题：

    Which two statements are true about optical networks?（）

    • A、SONET and SDH both use time-division multiplexing.
    • B、An optical transport network system uses time-division multiplexing.
    • C、SONET and SDH both use wavelength-division multiplexing.
    • D、An optical transport network system uses wavelength-division multiplexing.

    正确答案:A,D

  • 第5题：

    For a DWDM system, the wavelength selection and frequency spacing comply with（），recommendation while that of a CWDM system comply with the requirements of （）。


    正确答案:G.692；G.694.2

  • 第6题：

    FDM的英文是（）

    • A、Overload Frequency Division Multiplexing 
    • B、Orthogonal Frequency Division Multiplexing 
    • C、Overwhelming Frequency Division Multiplexing 
    • D、Outstanding Frequency Division Multiplexing

    正确答案:B

  • 第7题：

    You are the Cisco Network Designer in Cisco.com. Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual ring topology?（）

    • A、DynamicTrunking Protocol
    • B、Resilient Packet Ring
    • C、Synchronous Digital Hierarchy
    • D、Coarse Wave Division Multiplexing

    正确答案:B

  • 第8题：

    WDM与（）本质是相同的。

    • A、OFDM(optical frequency division multiplexing)
    • B、OTDM(optical time division multiplexing)
    • C、CDM(code division multiplexing)
    • D、EDFA(erbium doped fiber amplifier)

    正确答案:A

  • 第9题：

    DWDM全称为（）。

    • A、dense wavelength division multiplexing
    • B、dense waveguide division multiplexing
    • C、divided wavelength dimension multiplexing
    • D、divided waveguide dimension mode

    正确答案:A

  • 第10题：

    单选题
    在向用户介绍DWDM网络时，有时候需要解释DWDM的英文全写，关于DWDM的两个“D”英文全写分别是（）
    A

    Dense；Division

    B

    Division；Dense

    C

    Dense；Distribution

    D

    Meissner；Division


    正确答案： A
    解析： 暂无解析

  • 第11题：

    多选题
    Which two statements are true about optical networks?（）
    A

    SONET and SDH both use time-division multiplexing.

    B

    An optical transport network system uses time-division multiplexing.

    C

    SONET and SDH both use wavelength-division multiplexing.

    D

    An optical transport network system uses wavelength-division multiplexing.


    正确答案： A,B
    解析： 暂无解析

  • 第12题：

    名词解释题
    frequency division multiplexing频分多路复用

    正确答案： 一种常用的多路复用技术，容许多个发送方通过公共介质发送。由于每个发送方使用不同的频率，多个发送方能同时发送而不会冲突。
    解析： 暂无解析

  • 第13题：

    OFDM的英文是()

    A.OverloadFrequencyDivisionMultiplexing

    B.Orthogonal?Frequency?Division?Multiplexing

    C.Overwhelming?Frequency?DivisionMultiplexing

    D.Outstanding?Frequency?Division?Multiplexing


    正确答案：B

  • 第14题：

    frequency division multiplexing频分多路复用


    正确答案: 一种常用的多路复用技术，容许多个发送方通过公共介质发送。由于每个发送方使用不同的频率，多个发送方能同时发送而不会冲突。

  • 第15题：

    Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?（）

    • A、optical technology for transmitting up to 32 channels over multiple fiber strands
    • B、optical technology for transmitting up to 16 channels over multiple fiber strands
    • C、a WDM system that is compatible with EDFA technology
    • D、a technology for transmitting more closely packed optical signals using more sophisticated transceiver designs than CWDM .

    正确答案:C,D

  • 第16题：

    DWDM英文全称Dense Wavelengh Division Multiplexing，中文释义为（）。


    正确答案:密集波分复用

  • 第17题：

    对于LTE物理层的多址方案，在下行方向上采用基于循环前缀（Cyclic Prefix，CP）的正交频分复用（Orthogonal Frequency Division Multiplexing，OFDM），在上行方向上采用基于循环前缀的单载波频分多址（Single Carrrier-Frequency Division Multiplexing Access，SC-FDMA）。在上行方向上采用基于循环前缀的单载波频分多址（Single Carrrier-Frequency Division Multiplexing Access，SC-FDMA）。


    正确答案:正确

  • 第18题：

    802.11b是基于正交频分复用（Orthogonal Frequency Division Multiplexing，简称OFDM）技术的协议。


    正确答案:错误

  • 第19题：

    In order to link data centers, a customer is evaluating the installation of fiber optic cable between buildings that are 400 meters apart. The installation will require multiple patch panels and cables. Which of the following is the most critical factor to consider for this installation?（）

    • A、I/O rate
    • B、bandwidth
    • C、signal loss
    • D、Dense Wavelength Division Multiplexing (DWDM)

    正确答案:C

  • 第20题：

    WDM全称为（）。

    • A、wavelength division multiplexing
    • B、waveguide division multiplexing
    • C、wavelength dimension multiplexing
    • D、waveguide division mode

    正确答案:A

  • 第21题：

    单选题
    In order to link data centers, a customer is evaluating the installation of fiber optic cable between buildings that are 400 meters apart. The installation will require multiple patch panels and cables. Which of the following is the most critical factor to consider for this installation?（）
    A

    I/O rate

    B

    bandwidth

    C

    signal loss

    D

    Dense Wavelength Division Multiplexing (DWDM)


    正确答案： D
    解析： 暂无解析

  • 第22题：

    判断题
    802.11b是基于正交频分复用（Orthogonal Frequency Division Multiplexing，简称OFDM）技术的协议。
    A

    对

    B

    错


    正确答案： 错
    解析： 暂无解析

  • 第23题：

    单选题
    You are the Cisco Network Designer in Cisco.com. Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual ringtopology？（）
    A

     Dynamic Trunking Protocol

    B

     Resilient Packet Ring

    C

     Synchronous Digital Hierarchy

    D

     Coarse Wave Division Multiplexing


    正确答案： A
    解析： 暂无解析

  • 第24题：

    名词解释题
    Time division multiplexing时分多路复用

    正确答案： 一种通用的多路复用技术，容许多个发送方通过公共介质发送，各发送方轮流使用介质。
    解析： 暂无解析

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