多选题To have the best possible voice quality and to utilize effectively the available bandwidth， which queuing and compression mechanisms need to be used？（）Aclass-based weighted fair queuing （CBWFQ）Blow latency queuing （LLQ）Cpriority queuing （PQ） or custom 

题目
多选题
To have the best possible voice quality and to utilize effectively the available bandwidth， which queuing and compression mechanisms need to be used？（）
A

class-based weighted fair queuing （CBWFQ）

B

low latency queuing （LLQ）

C

priority queuing （PQ） or custom queuing （CQ）

D

Real-Time Transport Protocol （RTP） header compression

E

TCP header compression

F

UDP header compression

相似考题

1.VThe Pareto Principle is a technique used to determine which quality control problems in a particular process should be corrected. Which of the following statements best represents the philosophy employed by this principle?A . In order to minimize financial losses from quality control problems, all problems which have a measureable cost should be correctedB . the majority of defects are caused by a small percentage of the identifiable problems. Improvement efforts should be reserved for these vital problems.C . in order to achieve zero defects, all quality control problems, including those which do not have a direct financial cost should be corrected.D . generally, 80% of the quality control problems are justifiable for correction via cost-benefit analysis. The remaining 20% are not financially worthy of improvement efforts.E . A and D

2.As you will see in our price-list, we have offered very competitive prices, supplying you our best quality goods.We solicit that you will favor us with your orders, which shall always have our best attention.(英译中)

3.The ERX Edge Router can utilize which two classifiers?()A.multi fieldB.policy classifierC.quality of serviceD.behavior aggregate

4.( ) you are in the world, when you walk in to our hotel we want you to have best lodging experience possible.A.WhoeverB.WhateverC.WheneverD.Wherever

更多“To have the best possible voice quality and to utilize effec”相关问题

  • 第1题：

    共用题干
    第二篇

    Although it can be argued that voice,and E-mail are more efficient,and in many ways,more convenient,I still prefer to communicate in person,or if that is not possible,by telephone.In my expenence,face-to-face interactions are best for a number of reasons.In the first place,when you hear the speaker's tone of voice,you are better able to judge the attitude and emotions that can be easily hidden in a written reply.In addition,the exchange is more immediate.Even instant messaging isn't as fast as a verbal interaction in person or by phone.E-mail seems efficient;however, sometimes multiple messages over several days are required to clarify the information that a short phone call would have taken care of in one communication.We have all tried to return a voice mail only to hear a recording on the original caller's voice mail. Clearly,no real communication is possible in a situation that only allows one person to talk.Moreover,the body language and the expression on the speaker's face often communicate more than the words themselves.Research indicates that more than 80 percent of a message is nonverbal.The way that a speaker stands or sits can indicate interest or disagreement.The eye contact and the movement of the eyebrows and the mouth can actually communicate the opposite of the words that the speaker is saying. Finally,no technology has succeeded in duplicating a firm handshake to close a deal,a hug to encourage a friend,or a kiss goodbye.Until E-mail and voice mail can provide the subtle communication,the immediate interaction,and the emotional satisfaction of a face-to-face conversation,complete with facial expressions and gestures,I will prefer to talk instead of to type.

    If communicating in person is not possible,the writer prefers to_________.
    A:use phone
    B:write E-mail
    C:leave a voice message
    D:send a mail

    答案：A
    解析：
    主旨推断题。选项A、C、D在文中都有所提及，只有B选项没有提及。
    细节题。文中第一句中说：尽管有人会说语音留言和电子邮件更为快捷，而且从很多方面来说更为便利，我还是喜欢面对面的交流，如果面对面的交流无法实现那就通过打电话来交流。因此本题选A。
    细节题。A、B、C在文章中都有所提及。关于D选项，文中第五句提到：甚至是即时通信服务也没有当面的口头交流或者电话交流那么迅速。由此可知D选项是不对的，因此本题选D。
    词义推断题。该句意思是：最后，到目前为止还没有哪项技术可以成功地复制出一笔买卖成交时有力的握手、鼓励朋友时的拥抱或者是道别时的亲吻。想要说明作者之所以喜欢面对面交流的最后一个原因就是可以获得那种情感上的满足，而现代化的通讯设施是无法复制出这个来的。duplicate“复制”。
    主旨题。本文第一句话开门见山就提出：我喜欢面对面的交流。接下来用“首先”“其次”和“最后”从三方面来讲述为什么我喜欢面对面的交流胜过其他一些现代化的通讯手段。因此选B。

  • 第2题：

    You have a good voice.（）

    AThank you

    BNot at all  

    CJust so so

    DMy voice isn't good


    A
    略

  • 第3题：

    Which two pairings match the application with the correct Cos value？（）

    • A、CoS 0 = Best-Effort Data
    • B、CoS 1 = Best-Effort Data
    • C、CoS 3 = High Priority
    • D、CoS 4 = High Priority Data
    • E、CoS 5 = Voice Bearer
    • F、CoS 7 = Voice Bearer

    正确答案:A,E

  • 第4题：

    To have the best possible voice quality and to utilize effectively the available bandwidth， which queuing and compression mechanisms need to be used？（）

    • A、class-based weighted fair queuing （CBWFQ）
    • B、low latency queuing （LLQ）
    • C、priority queuing （PQ） or custom queuing （CQ）
    • D、Real-Time Transport Protocol （RTP） header compression
    • E、TCP header compression
    • F、UDP header compression

    正确答案:B,D

  • 第5题：

    Which two statements correctly identify considerations to take into account when deciding onCampus QoS Design elements？ （）

    • A、 Voice needs to be assigned to the hardware priority queue
    • B、 Voice needs to be assigned to the software priority queue
    • C、 Call signaling must have guaranteed bandwidth service
    • D、 Strict-priority queuing should be limited to 50 percent of the capacity of the link
    • E、 At least 33 percent or the link bandwidth should be reserved tor default best effort class

    正确答案:A,C

  • 第6题：

    When QoS levels in the Cisco Wireless Control System （WCS） are entered， which profile names are used to identify the access categories？（）

    • A、 platinum， gold， silver， and bronze
    • B、 voice， gold， silver， and bronze
    • C、 low delay， network critical， business， best effort
    • D、 voice， video， background gold， background silver， and best effort
    • E、 voice， video， best effort， and background
    • F、 voice， video， best effort， background， and scavenger

    正确答案:A

  • 第7题：

    Voice quality is bad due to high delay and jitter on a link. Which two actions will improve the quality  of voice calls？（）

    • A、Increase the queue size of the voice class.
    • B、Guarantee bandwidth during congestion to the voice class with a bandwidth command.
    • C、Increase the tx-ring of the egress interface.
    • D、Implement LLQ for the voice class.
    • E、Decrease the rx-ring of the egress interface.
    • F、Decrease the queue size of the voice class.

    正确答案:D,F

  • 第8题：

    An administrator is overseeing the backup process and tapes utilized by a former employee.Which of the following is the BEST way for the administrator to proceed？（）

    • A、Utilize differential backups.
    • B、Verify the tape drives are functional.
    • C、Verify that the backups are functional.
    • D、Utilize incremental backups.

    正确答案:C

  • 第9题：

    多选题
    To have the best possible voice quality and to utilize effectively the available bandwidth， which queuing and compression mechanisms need to be used？（）
    A

    class-based weighted fair queuing （CBWFQ）

    B

    low latency queuing （LLQ）

    C

    priority queuing （PQ） or custom queuing （CQ）

    D

    Real-Time Transport Protocol （RTP） header compression

    E

    TCP header compression

    F

    UDP header compression


    正确答案： F,A
    解析： 暂无解析

  • 第10题：

    单选题
    You have a good voice.（）
    A

    Thank you

    B

    Not at all  

    C

    Just so so

    D

    My voice isn't good


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Which set of classes correctly identifies the four traffic classes， from highest priority to lowest priority， specified in the 802.11e standard？（）
    A

     gold， silver， bronze， and platinum

    B

     platinum， gold， silver， and bronze

    C

     titanium， gold， silver， and bronze

    D

     voice and video， best effort， background， and scavenger

    E

     voice， video， best effort， and background

    F

     voice， video， best effort， and scavenger


    正确答案： D
    解析： 暂无解析

  • 第12题：

    多选题
    Which two pairings match the application with the correct Cos value？（）
    A

    CoS 0 = Best-Effort Data

    B

    CoS 1 = Best-Effort Data

    C

    CoS 3 = High Priority

    D

    CoS 4 = High Priority Data

    E

    CoS 5 = Voice Bearer

    F

    CoS 7 = Voice Bearer


    正确答案： B,A
    解析： 暂无解析

  • 第13题：

    共用题干
    第二篇

    Although it can be argued that voice,and E-mail are more efficient,and in many ways,more convenient,I still prefer to communicate in person,or if that is not possible,by telephone.In my expenence,face-to-face interactions are best for a number of reasons.In the first place,when you hear the speaker's tone of voice,you are better able to judge the attitude and emotions that can be easily hidden in a written reply.In addition,the exchange is more immediate.Even instant messaging isn't as fast as a verbal interaction in person or by phone.E-mail seems efficient;however, sometimes multiple messages over several days are required to clarify the information that a short phone call would have taken care of in one communication.We have all tried to return a voice mail only to hear a recording on the original caller's voice mail. Clearly,no real communication is possible in a situation that only allows one person to talk.Moreover,the body language and the expression on the speaker's face often communicate more than the words themselves.Research indicates that more than 80 percent of a message is nonverbal.The way that a speaker stands or sits can indicate interest or disagreement.The eye contact and the movement of the eyebrows and the mouth can actually communicate the opposite of the words that the speaker is saying. Finally,no technology has succeeded in duplicating a firm handshake to close a deal,a hug to encourage a friend,or a kiss goodbye.Until E-mail and voice mail can provide the subtle communication,the immediate interaction,and the emotional satisfaction of a face-to-face conversation,complete with facial expressions and gestures,I will prefer to talk instead of to type.

    Which is the best title for the passage?
    A:Effective Communication.
    B:Why I Prefer Face-to-face Interaction.
    C:Nonverbal Language.
    D:Advantages of Modern Communication.

    答案：B
    解析：
    主旨推断题。选项A、C、D在文中都有所提及，只有B选项没有提及。
    细节题。文中第一句中说：尽管有人会说语音留言和电子邮件更为快捷，而且从很多方面来说更为便利，我还是喜欢面对面的交流，如果面对面的交流无法实现那就通过打电话来交流。因此本题选A。
    细节题。A、B、C在文章中都有所提及。关于D选项，文中第五句提到：甚至是即时通信服务也没有当面的口头交流或者电话交流那么迅速。由此可知D选项是不对的，因此本题选D。
    词义推断题。该句意思是：最后，到目前为止还没有哪项技术可以成功地复制出一笔买卖成交时有力的握手、鼓励朋友时的拥抱或者是道别时的亲吻。想要说明作者之所以喜欢面对面交流的最后一个原因就是可以获得那种情感上的满足，而现代化的通讯设施是无法复制出这个来的。duplicate“复制”。
    主旨题。本文第一句话开门见山就提出：我喜欢面对面的交流。接下来用“首先”“其次”和“最后”从三方面来讲述为什么我喜欢面对面的交流胜过其他一些现代化的通讯手段。因此选B。

  • 第14题：

    You have a good voice.（）

    • A、Thank you
    • B、Not at all  
    • C、Just so so
    • D、My voice isn't good

    正确答案:A

  • 第15题：

    Which set of classes correctly identifies the four traffic classes， from highest priority to lowest priority， specified in the 802.11e standard？（）

    • A、 gold， silver， bronze， and platinum
    • B、 platinum， gold， silver， and bronze
    • C、 titanium， gold， silver， and bronze
    • D、 voice and video， best effort， background， and scavenger
    • E、 voice， video， best effort， and background
    • F、 voice， video， best effort， and scavenger

    正确答案:E

  • 第16题：

    Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（）

    • A、IP telephone
    • B、Voice gateway
    • C、Private branch exchange (PBX)
    • D、Advanced audio conferencing software

    正确答案:D

  • 第17题：

    如果看到Voice quality models initialization failed消息，有那几步的解决方案？


    正确答案: 检查VQ连接线连接是否正确、可靠（连接方式如前所述）
    如果连线正确，尝试断开/连接VQ电源线
    重新激活设备

  • 第18题：

    You are the network administrator of an enterprise company that just deployed a global IP telephony environment. In order to guarantee good voice quality， you asked your provider to implement QoS on the CE routers of your MPLS network. On your LAN， you have also deployed QoS. Users， however， keep complaining about bad voice quality， and the provider does not see matches on the DSCP values that you have asked him to match upon. What is most likely the problem？（）

    • A、The phones are not sending traffic with the correct DSCP value.
    • B、The Cisco CallManager is not marking the traffic correctly.
    • C、This is most likely a bug on the CE routers.
    • D、Your LAN QoS is incorrectly configured.

    正确答案:D

  • 第19题：

    What can a network administrator utilize by using PPP Layer 2 encapsulation (Choose three.) （）。

    • A、VLAN support
    • B、compression
    • C、authentication
    • D、sliding windows
    • E、multilink support
    • F、quality of service

    正确答案:B,C,E

  • 第20题：

    The ERX Edge Router can utilize which two classifiers?（）

    • A、multi field
    • B、policy classifier
    • C、quality of service
    • D、behavior aggregate

    正确答案:A,D

  • 第21题：

    单选题
    Due to limitations affecting voice quality, which of the broadband speeds shown is preferred in order to achieve highest voice quality on a converged data and voice teleworker connection?（）
    A

    DSL with 128k uplink /128k downlink

    B

    cable with 256k uplink /256k downlink

    C

    DSL with 128k uplink /768k downlink

    D

    cable with 256k uplink /1.4M downlink


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    When QoS levels in the Cisco Wireless Control System （WCS） are entered， which profile names are used to identify the access categories？（）
    A

     platinum， gold， silver， and bronze

    B

     voice， gold， silver， and bronze

    C

     low delay， network critical， business， best effort

    D

     voice， video， background gold， background silver， and best effort

    E

     voice， video， best effort， and background

    F

     voice， video， best effort， background， and scavenger


    正确答案： E
    解析： 暂无解析

  • 第23题：

    多选题
    Voice quality is bad due to high delay and jitter on a link. Which two actions will improve the quality  of voice calls？（）
    A

    Increase the queue size of the voice class.

    B

    Guarantee bandwidth during congestion to the voice class with a bandwidth command.

    C

    Increase the tx-ring of the egress interface.

    D

    Implement LLQ for the voice class.

    E

    Decrease the rx-ring of the egress interface.

    F

    Decrease the queue size of the voice class.


    正确答案： D,F
    解析： 暂无解析

  • 第24题：

    问答题
    如果看到Voice quality models initialization failed消息，有那几步的解决方案？

    正确答案： 检查VQ连接线连接是否正确、可靠（连接方式如前所述）
    如果连线正确，尝试断开/连接VQ电源线
    重新激活设备
    解析： 暂无解析

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