Which of the following features would BEST be used to optimize real－time voice and video chat?()(Select TWO)A. Load balancingB. Caching enginesC. QosD. Fault tolerance systemsE. Traffic shaping

题目
Which of the following features would BEST be used to optimize real－time voice and video chat?()(Select TWO)

A. Load balancing

B. Caching engines

C. Qos

D. Fault tolerance systems

E. Traffic shaping

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更多“Which of the following features would BEST be used to optimize real－time voice and video chat?()(Select TWO) ”相关问题

  • 第1题：

    在VFP中，打开数据库和表的命令分别是( )。

    A．USE、OPEN

    B．SELECT、CREAT

    C．OPEN、USE

    D．CREAT、SELECT


    正确答案：C

  • 第2题：

    WhichphaseincludestheactivityofassistingthecustomertomonitortheirCiscoUnifiedCommunicationssystemperformanceandtorespondtotroublereports()

    A.Maintain

    B.Deploy

    C.Operate

    D.Optimize


    参考答案：C

  • 第3题：

    Refertotheexhibit.TheLC&FSoftballLeagueisestablishingvoice-mailgroupstomoreefficientlysendmessagesforraindelaysandotherimportantmatters.IftheorganizationcheckstheIntegratedMessagingbox,membersofthisgroupwillbeallowedwhatIMAP-enabledprivilege?（）

    A.e-mailandvoice-mailmessageintegration

    B.voice-mailandinstantmessageintegration

    C.email，voice-mailandinstantmessageintegration

    D.voice-mailmessagesmaybesentbyemail

    E.voice-mailmessagesmaybereceivedbyemail


    参考答案：E

  • 第4题：

    以下哪些关键字可以操作数据库?()

    A.create

    B.drop

    C.use

    D.select


    参考答案：A, B, C

  • 第5题：

    WhichphaseincludesconductingCiscoUnifiedCommunicationsnetworktrafficanalysisandcapacityplanninginordertoensurehighavailability()

    A.Design

    B.Prepare

    C.Maintain

    D.Optimize


    参考答案：D

  • 第6题：

    某企业职工关系EMP（E_no，E_name，DEPT，E_addr，E_tel）中的属性分别表示职工号、姓名、部门、地址和电话；经费关系FUNDS（E_no，E_limit，E_used）中的属性分别表示职工号、总经费金额和己花费金额。若要查询部门为"开发部"且职工号为"03015"的职工姓名及其经费余额，则相应的SQL语句应为:SELECT（请作答此空）FROM（ ）WHERE（ ）

    A.EMP.E_no,E_limit-E_used
    B.EMP.E_name,E_used-E_limit
    C.EMP.E_no,E_used-E_limit
    D.EMP.E_name,E_limit-E_used

    答案：D
    解析：
    本题考查数据库SQL语句的基础知识。查询的结果为职工姓名E_name，和经费余额，经费余额=总经费金额-已花费金额（E_limit-E_used）。

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