Which two statements about queuing mechanisms are true? ()A、FIFO queuing is only appropriate for slower serial interfacesB、weighted fair queuing is the default queuing mechanism used for all but slower than E1 rate interfacesC、only one queuing mechanism t

题目

Which two statements about queuing mechanisms are true? ()

  • A、FIFO queuing is only appropriate for slower serial interfaces
  • B、weighted fair queuing is the default queuing mechanism used for all but slower than E1 rate interfaces
  • C、only one queuing mechanism type can be applied to an interface
  • D、weighted fair queuing does not require the configuration of access lists to classify traffic  
  • E、flow-based weighted fair queuing provides for queues to be serviced in a round-robin fashion

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参考答案和解析
正确答案:C,D
更多“Which two statements about queuing mechanisms are true? ()A、FIFO queuing is only appropriate for slower serial interfacesB、weighted fair queuing is the default queuing mechanism used for all but slower than E1 rate interfacesC、only one queuing mechanism t”相关问题
  • 第1题:

    Which two queuing methods will allow a percentage of the available bandwidth to be allocated to each queue?()

    • A、first-in, first-out queuing (FIFO)
    • B、priority queuing (PQ)
    • C、custom queuing (CQ)
    • D、weighted fair queuing (WFQ)
    • E、class-based WFQ (CBWFQ)
    • F、low latency queuing (LLQ)

    正确答案:E,F

  • 第2题:

    Which statement is true about the Call Admission Control (CAC) feature in VoIP networks?()

    • A、 CAC is used to allocate enough bandwidth for the number of calls that are allowed on the VoIP network.
    • B、 CAC is used to protect the quality of the voice calls by preventing call establishment if enough resources are not available on the network.
    • C、 CAC provides queuing mechanisms for voice calls if the packets exceed the configured or budgeted rate.
    • D、 In a VoIP network the CAC can be replaced with the LLQ QoS mechanism if it has been properly implemented.

    正确答案:B

  • 第3题:

    SDM creates a low latency queuing (LLQ) service policy with its associated classes. What are the two types of low latency queuing available using the SDM QoS wizard?()

    • A、 FIFO queuing, which provides a means to hold packets while they are waiting to exit an interface
    • B、 Priority queuing, which ensures a fixed amount of bandwidth
    • C、 Custom queuing (CQ), which provides a queuing tool that services all queues, even during times of congestion
    • D、 Bandwidth queuing, which ensures a minimum amount of bandwidth
    • E、 Weighted fair queuing (WFQ), which classifies packets based on flows

    正确答案:B,D

  • 第4题:

    你想在你的网络中实现congestion avoidance,下面哪种机制可以实现有选择的丢弃数据包?()

    • A、 Weighted Random Early Detection (WRED)
    • B、 Low Latency Queuing (LLQ)
    • C、 Class-based Weighted Fair Queuing (CBWFQ)
    • D、 Modified Deficit Round Robin (MDRR)

    正确答案:A

  • 第5题:

    Which two statements about the QoS functionality of the Cisco SDM are true?()

    • A、the first step when using the SDM QoS wizard is to select the inbound interface on which the QoS policy must be applied
    • B、the SDM QoS wizard can be used to optimize LAN, WAN, and VPN interfaces
    • C、he SDM QoS wizard supports network-based application recognition (NBAR) to provide deep and stateful packet inspection
    • D、he SDM QoS wizard will apply custom queuing and priority queuing policies to the identified interfaces
    • E、he SDM QoS wizard will apply low latency-queuing,custom-queuing and priority-queuing policies to the identified interfaces
    • F、to create and manage the QoS settings, the user must select the QoS wizard task under the Monitor option

    正确答案:B,C

  • 第6题:

    Which two queuing methods are supported by outbound QoS?() (Choose two.)

    • A、weighted fair priority
    • B、weighted fair queuing
    • C、weighted strict priority
    • D、weighted strict queuing

    正确答案:B,C

  • 第7题:

    多选题
    SDM creates a low latency queuing (LLQ) service policy with its associated classes. What are the two types of low latency queuing available using the SDM QoS wizard?()
    A

    FIFO queuing, which provides a means to hold packets while they are waiting to exit an interface

    B

    Priority queuing, which ensures a fixed amount of bandwidth

    C

    Custom queuing (CQ), which provides a queuing tool that services all queues, even during times of congestion

    D

    Bandwidth queuing, which ensures a minimum amount of bandwidth

    E

    Weighted fair queuing (WFQ), which classifies packets based on flows


    正确答案: E,A
    解析: 暂无解析

  • 第8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9题:

    多选题
    Which two statements about queuing mechanisms are true? ()
    A

    FIFO queuing is only appropriate for slower serial interfaces

    B

    weighted fair queuing is the default queuing mechanism used for all but slower than E1 rate interfaces

    C

    only one queuing mechanism type can be applied to an interface

    D

    weighted fair queuing does not require the configuration of access lists to classify traffic

    E

    flow-based weighted fair queuing provides for queues to be serviced in a round-robin fashion


    正确答案: C,E
    解析: 暂无解析

  • 第10题:

    单选题
    你是企业的网络管理员,你想在你的企业里实现QOS以确保VOIP的数据流保证带宽为256K,低延时,你用下面哪种队列实现?()
    A

     Weighted Fair Queuing (WFQ)

    B

     Priority Queuing (PQ)

    C

     Class-based WFQ (CBWFQ)

    D

     Low Latency Queuing (LLQ)


    正确答案: C
    解析: 暂无解析

  • 第11题:

    多选题
    Which two queuing methods will allow a percentage of the available bandwidth to be allocated to each queue?()
    A

    first-in, first-out queuing (FIFO)

    B

    priority queuing (PQ)

    C

    custom queuing (CQ)

    D

    weighted fair queuing (WFQ)

    E

    class-based WFQ (CBWFQ)

    F

    low latency queuing (LLQ)


    正确答案: A,D
    解析: 暂无解析

  • 第12题:

    多选题
    Which two queuing methods are supported by outbound QoS?() (Choose two.)
    A

    weighted fair priority

    B

    weighted fair queuing

    C

    weighted strict priority

    D

    weighted strict queuing


    正确答案: A,C
    解析: 暂无解析

  • 第13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14题:

    Which statement is true about the components of a queuing mechanism?()

    • A、Each subinterface has its own hardware queue and can experience congestion just like its main interface
    • B、Hardware queuing is only used if the software queues are experiencing congestion.
    • C、Hardware queues and software queues are not used concurrently.
    • D、The hardware queuing system always uses the FIFO queuing mechanism.

    正确答案:D

  • 第15题:

    What are two QoS mechanisms that are used to prevent packet loss?()

    • A、header compression
    • B、payload compression
    • C、low latency queuing (LLQ)
    • D、weighted random early detection (WRED)
    • E、traffic policing
    • F、traffic shaping

    正确答案:C,D

  • 第16题:

    Which two QoS statements are true about the use of the SDMQoS wizard?()

    • A、business-critical traffic includes VoIP and voice signaling packets
    • B、SDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces andIPsec tunnels
    • C、SDM can provide QoS for real-time traffic and business-critical traffic
    • D、SDM creates a custom-queuing (CQ) or a priority-queuing (PQ) policy
    • E、SDM creates a low latency queuing (LLQ) service policy with its associated classes
    • F、when allocating bandwidth, values can be entered in either bandwidth percentage or kilobytes per second (kBps)

    正确答案:C,E

  • 第17题:

    你是企业的网络管理员,你想在你的企业里实现QOS以确保HTTP的应用数据流保证最小带宽为1M,你用下面哪种队列实现?()

    • A、 Weighted Fair Queuing (WFQ)
    • B、 Priority Queuing (PQ)
    • C、 Class-based WFQ (CBWFQ)
    • D、 Low Latency Queuing (LLQ)

    正确答案:C

  • 第18题:

    多选题
    What are three of the functions that AutoQoS performs when it is configured on a switch?()
    A

    synchronizes FIFO, PQ, CQ, and MDRR, with WFQ, CBWFQ, and LLQ

    B

    enables strict priority queuing for voice traffic, and weighted round robin queuing for data traffic

    C

    enables low latency queuing to ensure that voice traffic receives priority treatment

    D

    enforces a trust boundary on switch access ports and uplinks/downlinks

    E

    modifies queue sizes as well as queue weights where required

    F

    adjusts link speeds to adapt to QoS needs


    正确答案: A,B
    解析: 暂无解析

  • 第19题:

    单选题
    Which statement is true about the components of a queuing mechanism?()
    A

    Each subinterface has its own hardware queue and can experience congestion just like its main interface

    B

    Hardware queuing is only used if the software queues are experiencing congestion.

    C

    Hardware queues and software queues are not used concurrently.

    D

    The hardware queuing system always uses the FIFO queuing mechanism.


    正确答案: A
    解析: 暂无解析

  • 第20题:

    单选题
    你想在你的网络中实现congestion avoidance,下面哪种机制可以实现有选择的丢弃数据包?()
    A

     Weighted Random Early Detection (WRED)

    B

     Low Latency Queuing (LLQ)

    C

     Class-based Weighted Fair Queuing (CBWFQ)

    D

     Modified Deficit Round Robin (MDRR)


    正确答案: D
    解析: 暂无解析

  • 第21题:

    多选题
    Which two QoS statements are true about the use of the SDM QoS wizard? ()
    A

    Business-critical traffic includes VoIP and voice signaling packets.

    B

    SDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces and IPsec tunnels.

    C

    SDM can provide QoS for real-time traffic and business-critical traffic.

    D

    SDM creates a custom-queuing (CQ) or a priority-queuing (PQ) policy.

    E

    SDM creates a low latency queuing (LLQ) service policy with its associated classes.

    F

    When allocating bandwidth, values can be entered in either bandwidth percentage or kilobytes per second (kBps).


    正确答案: D,E
    解析: 暂无解析

  • 第22题:

    多选题
    What are two QoS mechanisms that are used to prevent packet loss?()
    A

    header compression

    B

    payload compression

    C

    low latency queuing (LLQ)

    D

    weighted random early detection (WRED)

    E

    traffic policing

    F

    traffic shaping


    正确答案: F,A
    解析: 暂无解析

  • 第23题:

    多选题
    Which two statements about the QoS functionality of the Cisco SDM are true?()
    A

    the first step when using the SDM QoS wizard is to select the inbound interface on which the QoS policy must be applied

    B

    the SDM QoS wizard can be used to optimize LAN, WAN, and VPN interfaces

    C

    he SDM QoS wizard supports network-based application recognition (NBAR) to provide deep and stateful packet inspection

    D

    he SDM QoS wizard will apply custom queuing and priority queuing policies to the identified interfaces

    E

    he SDM QoS wizard will apply low latency-queuing,custom-queuing and priority-queuing policies to the identified interfaces

    F

    to create and manage the QoS settings, the user must select the QoS wizard task under the Monitor option


    正确答案: F,E
    解析: 暂无解析