参考答案和解析
正确答案:

IP包在SDH或DWDM上传输

更多“什么是IP OVER SDH IP OVER DWDM? ”相关问题
  • 第1题:

    Network managers have long(140)practical voice-over-IP(VOIP)solutions. VOIP(141)ease network management and decreases costs by converging a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's head-quarters with far-reaching branch offices can(142)tremendous amounts of(143)in long distance phone bills, provided that solution delivers POTS-like voice(144)over the Internet.

    A.await

    B.awaited

    C.awaiting

    D.awaits


    正确答案:B

  • 第2题:

    Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises ease network management and decreases(66)by converging a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's head-quarters with far-reaching branch offices can(67)tremendous amounts of money in long distance phone bills, provided that solution delivers POTS-like voice(68)over the Internet.

    VOIP gateways are designed to convert voice from the(69)domain to the circuit switched domain. VOIP solutions use a digital signal processor(DSP)to process the voice data, preparing the voice sample for transmission by compressing voice and removing jitter. The VOIP equipment must comply with the(70)H.323 standard defined by the International Telecommunication Union, or ITU.

    A.time

    B.cash

    C.costs

    D.space


    正确答案:C

  • 第3题:

    (14)不属于网络基础平台的传输技术。

    A.基于IP的语音传输(VoIP)
    B.准同步数字序列(PDH
    C.波分复用(DWDM)
    D.同步数字序列(SDH)

    答案:A
    解析:
    网络基础平台传输技术目前常用的有:DWDM(波分复用)、综合布线系统(PDS)、同步数字序列(SDH)、准同步数字序列(PDH)、数字微波传输系统、VSAT数字卫星通信系统及有线电视网(CATV)等。

  • 第4题:

    ()不属于网络基础平台的传输技术。

    A.基于IP的语音传输(VoIP)

    B.准同步数字序列(PDH)

    C.波分复用DWDM)

    D.同步数字序列SDH1


    参考答案:A

  • 第5题:

    Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises(71)network management and decreases costs by(72)a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company' s head -quarters with far -reaching branch offices can(73)tremendous amounts of(74)in long distance phone bills, provided that solution delivers POTS -like voice(75)over the Internet.

    A.complicated

    B.useful

    C.ease

    D.orderly


    正确答案:C

  • 第6题:

    extra-的反义前缀是什么?

    A.intra-

    B.super-

    C.in-

    D.over-


    intra-;in-