多选题What are two design guidelines for VoIP networks？（）ADelay should be no more than 10 ms.BLoss should be no more than 1 percent.CJitter should be less then 40 ms.DManaged bandwidth is strongly recommended for voice control traffic.

题目
多选题
What are two design guidelines for VoIP networks？（）
A

Delay should be no more than 10 ms.

B

Loss should be no more than 1 percent.

C

Jitter should be less then 40 ms.

D

Managed bandwidth is strongly recommended for voice control traffic.

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3.What are two design guidelines for VoIP networks? ()A.Delay should be no more than 10 ms.B.Loss should be no more than1 percent.C.Jitter should be less then 40 ms.D.Managed bandwidth is strongly recommended for voice control traffic.

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更多“多选题What are two design guidelines for VoIP networks？（）ADelay should be no more than 10 ms.BLoss should be no more than 1 percent.CJitter should be less then 40 ms.DManaged bandwidth is strongly recommended for voice control traffic.”相关问题

  • 第1题：

    For acceptable voice calls, the packet error rate should be less than()%

    A.0.01

    B.0.1

    C.1

    D.2.5


    参考答案：C

  • 第2题：

    Anchor shackles should have a breaking strength that is ______．

    A.equal to the chains they are connecting

    B.25% more than the chains they are connecting

    C.50% more than the chains they are connecting

    D.100% more than the chains they are connecting


    正确答案：A

  • 第3题：

    For acceptable voice calls， the packet error rate should be no higher than what value？（）

    • A、0.1%
    • B、1%
    • C、2.5%
    • D、25%

    正确答案:B

  • 第4题：

    When provisioning for Interactive-Video（e，g，video conferencing traffic）which three statementsdepicts the correct requirements？（）

    • A、Loss should be no more than 1 percent.
    • B、One-way latency should be no more than 150 ms
    • C、Jitter should be no more than 30 ms
    • D、Loss should be no more than 3 percent
    • E、One-way latency should be no more than 150/2=75 ms
    • F、Jitter should be no more than 300 ms

    正确答案:A,B,C

  • 第5题：

    For acceptable voice calls, the packet error rate should be less than（）%

    • A、0.01
    • B、0.1
    • C、1
    • D、2.5

    正确答案:C

  • 第6题：

    Which statement is NOT a key QoS recommended requirement for voice bearer traffic?（）

    • A、Voice traffic should be marked to DSCP EF per the QoS baseline and RFC3246.
    • B、Voice traffic loss should be no more than 3%.
    • C、One-way latency （mouth-to-ear） should be less than 150 msec.
    • D、Average one way jitter should be targeted to less than 30 msec.
    • E、21-320 Kbps of guaranteed priority bandwidth is required per call depending on sample rate，codec，and  layer 2 overhead.

    正确答案:B

  • 第7题：

    A server is configured with two network cards. To utilize the bandwidth of both network cards at the same time without assigning more than one IP address, which of the following load balancing techniques should be used?（）

    • A、Clustering
    • B、NIC teaming
    • C、OSPF
    • D、VLAN tagging

    正确答案:B

  • 第8题：

    多选题
    Which of the following statements is true about the 80/20 rule （Select all that apply）？（）
    A

    20 percent of the traffic on a network segment should be local.

    B

    no more than 20 percent of the network traffic should be able to move across a backbone.

    C

    no more than 80 percent of the network traffic should be able to move across a backbone.

    D

    80 percent of the traffic on a network segment should be local.


    正确答案： B,D
    解析： 暂无解析

  • 第9题：

    多选题
    What are two indicators that a customer should consider the installation of a Wireless LAN Controller? （）
    A

    need one access point

    B

    want to provide unsecured wireless access

    C

    need between two and three access points

    D

    want to provide employee wireless access

    E

    need more than four access points

    F

    want to provide guest wireless access


    正确答案： C,A
    解析： 暂无解析

  • 第10题：

    单选题
    When you enable port security on an interface that is also configured with a voice VLAN，  what is the maximum number of secure MAC addresses that should be set on the port？（）
    A

    No more than one secure MAC address should be set.

    B

    The default will be set.

    C

    The IP phone should use a dedicated port， therefore only one MAC address is needed per port.

    D

    No value is needed if the switchport priority extend command is configured. 

    E

    No more than two secure MAC addresses should be set.


    正确答案： E
    解析： 暂无解析

  • 第11题：

    单选题
    Which statement is NOT a key QoS recommended requirement for voice bearer traffic?（）
    A

    Voice traffic should be marked to DSCP EF per the QoS baseline and RFC3246.

    B

    Voice traffic loss should be no more than 3%.

    C

    One-way latency （mouth-to-ear） should be less than 150 msec.

    D

    Average one way jitter should be targeted to less than 30 msec.

    E

    21-320 Kbps of guaranteed priority bandwidth is required per call depending on sample rate，codec，and  layer 2 overhead.


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following will those worrying about the trend support?
    A

    Professors working in profitable fields are less reliable.

    B

    More support should be given to musty areas other than profit-generating ones.

    C

    Professors in technology-related fields should earn more than their counterparts do in industry.

    D

    People working in pharmaceutical and high-tech companies should earn the biggest money.


    正确答案： C
    解析：
    推断题。文章第四段讲到了一些人的担心，其中提到他们担心“相对于musty areas而言，学校会不会更支持那些profitable fields的项目呢？”由此我们可推知，在他们看来学校应多支持musty areas。故选项B正确。

  • 第13题：

    The passage mainly tells us that______.

    A. money is the most important thing

    B. there is something more important than money

    C. we should look into their eyes while talking to people

    D. the more money you have, the less happy you would be


    正确答案：B
     这是文章的主题。作者的中心观点在第二、三段中说得很清楚；世上有比钱更重要、更使人幸福的东西。

  • 第14题：

    There is no reason they should limit how much vitamin you take，( )they can limit how much water you drink.

    A.much more than
    B.no more than
    C.no less than
    D.any more than

    答案：D
    解析：
    考查比较结构。A项意为“比...多得多”；B项意为“和……一样不，仅仅”；C项意为“多达”；D项no...more than意为“两者都不”，其强调形式为not...any more than。由于前一句已有否定词no，因此D项正确。故本题选D。句意：正如他们无权限制人们喝多少水一样，他们也没有理由限制人们摄入多少维生素。

  • 第15题：

    What are two design guidelines for VoIP networks? （）

    • A、Delay should be no more than 10 ms.
    • B、Loss should be no more than1 percent.
    • C、Jitter should be less then 40 ms.
    • D、Managed bandwidth is strongly recommended for voice control traffic.

    正确答案:B,D

  • 第16题：

    Which of the following statements is true about the 80/20 rule （Select all that apply）？（）

    • A、20 percent of the traffic on a network segment should be local.
    • B、no more than 20 percent of the network traffic should be able to move across a backbone.
    • C、no more than 80 percent of the network traffic should be able to move across a backbone.
    • D、80 percent of the traffic on a network segment should be local.

    正确答案:B,D

  • 第17题：

    When you enable port security on an interface that is also configured with a voice VLAN，  what is the maximum number of secure MAC addresses that should be set on the port？（）

    • A、No more than one secure MAC address should be set.
    • B、The default will be set.
    • C、The IP phone should use a dedicated port， therefore only one MAC address is needed per port.
    • D、No value is needed if the switchport priority extend command is configured. 
    • E、No more than two secure MAC addresses should be set.

    正确答案:B

  • 第18题：

    What are two design guidelines for VoIP networks？（）

    • A、 Delay should be no more than 10 ms.
    • B、 Loss should be no more than 1 percent.
    • C、 Jitter should be less then 40 ms.
    • D、 Managed bandwidth is strongly recommended for voice control traffic.

    正确答案:B,D

  • 第19题：

    多选题
    When provisioning for Interactive-Video（e，g，video conferencing traffic）which three statementsdepicts the correct requirements？（）
    A

    Loss should be no more than 1 percent.

    B

    One-way latency should be no more than 150 ms

    C

    Jitter should be no more than 30 ms

    D

    Loss should be no more than 3 percent

    E

    One-way latency should be no more than 150/2=75 ms

    F

    Jitter should be no more than 300 ms


    正确答案： E,A
    解析： 暂无解析

  • 第20题：

    单选题
    If the effective bearing area has been reduced , remedial action should be taken（）
    A

    by more than 5 percent

    B

    by less than 10 percent

    C

    to 95 percent

    D

    to less than 90 percent


    正确答案： C
    解析： 暂无解析

  • 第21题：

    多选题
    What are two design guidelines for VoIP networks? （）
    A

    Delay should be no more than 10 ms.

    B

    Loss should be no more than1 percent.

    C

    Jitter should be less then 40 ms.

    D

    Managed bandwidth is strongly recommended for voice control traffic.


    正确答案： C,B
    解析： 暂无解析

  • 第22题：

    单选题
    Anchor shackles should have a breaking strength that is（）.
    A

    equal to the chains they are connecting

    B

    25% more than the chains they are connecting

    C

    50% more than the chains they are connecting

    D

    100% more than the chains they are connecting


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    For acceptable voice calls, the packet error rate should be less than（）%
    A

    0.01

    B

    0.1

    C

    1

    D

    2.5


    正确答案： C
    解析： 暂无解析

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