Which three QoS mechanisms can be configured to improve VoIP quality on a converged  network?()A、The use of a queuing method that will give VoIP traffic strict priority over other traffic  B、The use of RTP header compression for the VoIP traffic.C、The pro

题目

Which three QoS mechanisms can be configured to improve VoIP quality on a converged  network?()

  • A、The use of a queuing method that will give VoIP traffic strict priority over other traffic  
  • B、The use of RTP header compression for the VoIP traffic.
  • C、The proper classification and marking of the traffic as close to the source as possible
  • D、The use of 802.1QinQ trunking for VoIP traffic
  • E、The use of WRED for the VoIP traffic

相似考题
更多“Which three QoS̳”相关问题
  • 第1题:

    Which three characteristics of the traffic flow are taken into consideration when the QoS-for-VPNs feature (QoS pre-classify) provides packet classification and applies appropriate QoS service on tunnel interfaces?()

    • A、IP precedence bits
    • B、DSCP bits
    • C、original port numbers
    • D、DE bits
    • E、source IP address
    • F、destination IP address

    正确答案:C,E,F

  • 第2题:

    Which three practices are important to the implementation of a DiffServ QoS architecture?()

    • A、 Because services are allocated throughout the network before the transmission of data begins, traffic classes can be guaranteed QoS services.
    • B、 Traffic classes are marked with Layer 2 markings to allow for more granularity in identifying traffic classes.
    • C、 Traffic classes are marked with Layer 3 markings to allow them to traverse different network types without loss of QoS information.
    • D、 Traffic classes allow networks to provide proper QoS treatment of packets without applications having to request services.
    • E、 Based upon the network capabilities, QoS markings are placed on packets as needed throughout the network to allow for proper QoS treatment of packets.
    • F、 QoS markings are placed on packets as close to the network edge as possible to allow distribution and core devices to determine QoS actions as quickly as possible.

    正确答案:C,D,F

  • 第3题:

    Which two statements about the QoS policy generation phase of the Cisco SDM QoS wizard are true?()

    • A、the SDM QoS wizard will create two real-time traffic classes to handle VoIP, voice signaling, and video packets
    • B、the SDM QoS wizard will create three real-time traffic classes to handle VoIP, voice signaling, video, and video packets
    • C、the SDM QoS wizard will create four real-time traffic classes to handle VoIP, voice signaling, video, and video streaming packets
    • D、the SDM QoS wizard will create two business-critical traffic classes to handle transactional and  network management packets
    • E、the SDM QoS wizard will create three business-critical traffic classes to handle transactional, network management, and routing packets
    • F、the SDM QoS wizard will create four business-critical traffic classes to handle transactional, network management, routing, and best-effort packets

    正确答案:A,E

  • 第4题:

    The Cisco NAC Appliance is able to check which three items before allowing network access?()

    • A、client antivirus software state
    • B、personal firewall settings
    • C、wireless cell bandwidth availability
    • D、IOS versions for routers and switches
    • E、appropriate client patch management level
    • F、appropriate QoS settings for client application Answer:

    正确答案:A,B,E

  • 第5题:

    Which three statements are true about the appliance of QoS models?()

    • A、the DiffServ model requires applications to signal the network with QoS requirements
    • B、the DiffServ model can be used to deliver QoS based upon IP precedence, or source and destination addresses
    • C、the DiffServ model requires RSVP
    • D、the best effort model is suitable for applications such as file transfer and e-mail
    • E、the IntServ model requires applications to signal the network with QoS requirements
    • F、the IntServ model model attempts to deliver a level of service based on the QoS specified by each packet

    正确答案:B,D,E

  • 第6题:

    The Cisco NAC Appliance is able to check which three items before allowing network access?()

    • A、 client antivirus software state
    • B、 personal firewall settings
    • C、 wireless cell bandwidth availability
    • D、 IOS versions for routers and switches
    • E、 appropriate client patch management level
    • F、 appropriate QoS settings for client application

    正确答案:A,B,E

  • 第7题:

    多选题
    Which three traffic descriptors are typically used as QoS markings for packets or frames entering the network?()
    A

    protocol type

    B

    CoS

    C

    DSCP

    D

    IP precedence

    E

    destination address

    F

    input interface


    正确答案: A,C
    解析: 暂无解析

  • 第8题:

    多选题
    The Cisco NAC Appliance is able to check which three items before allowing network access?()
    A

    client antivirus software state

    B

    personal firewall settings

    C

    wireless cell bandwidth availability

    D

    IOS versions for routers and switches

    E

    appropriate client patch management level

    F

    appropriate QoS settings for client application


    正确答案: B,E
    解析: 暂无解析

  • 第9题:

    多选题
    Which three statements are true about the application of QoS models? ()
    A

    The DiffServ model requires applications to signal the network with QoS requirements.

    B

    The DiffServ model can be used to deliver QoS based upon IP precedence, or source and destination addresses.

    C

    The DiffServ model requires RSVP.

    D

    The best effort model is suitable for applications such as file transfer and e-mail

    E

    The IntServ model requires applications to signal the network with QoS requirements.

    F

    The IntServ model attempts to deliver a level of service based on the QoS specified by each packet


    正确答案: A,C
    解析: 暂无解析

  • 第10题:

    多选题
    Which three statements are true about the appliance of QoS models?()
    A

    the DiffServ model requires applications to signal the network with QoS requirements

    B

    the DiffServ model can be used to deliver QoS based upon IP precedence, or source and destination addresses

    C

    the DiffServ model requires RSVP

    D

    the best effort model is suitable for applications such as file transfer and e-mail

    E

    the IntServ model requires applications to signal the network with QoS requirements

    F

    the IntServ model model attempts to deliver a level of service based on the QoS specified by each packet


    正确答案: F,C
    解析: 暂无解析

  • 第11题:

    多选题
    Which three of the following network features are methods used to achieve high availability?()
    A

    Spanning Tree Protocol (STP)

    B

    Delay reduction

    C

    Hot Standby Routing Protocol (HSRP)

    D

    Dynamic routing protocols

    E

    Quality of Service (QoS)

    F

    Jitter management


    正确答案: A,C,D
    解析: 暂无解析

  • 第12题:

    多选题
    Which three characteristics of the traffic flow are taken into consideration when the QoS-for-VPNs feature (QoS pre-classify) provides packet classification and applies appropriate QoS service on tunnel interfaces?()
    A

    IP precedence bits

    B

    DSCP bits

    C

    original port numbers

    D

    DE bits

    E

    source IP address

    F

    destination IP address


    正确答案: B,A
    解析: 暂无解析

  • 第13题:

    Which three of the following network features are methods used to achieve high availability()

    • A、Spanning Tree Protocol(STP)
    • B、Delay reduction
    • C、Hot Standby Routing Protocol(HSRP)
    • D、Dynamic routing protocols
    • E、Quality of Service(QoS)
    • F、Jitter management

    正确答案:A,C,D

  • 第14题:

    Which three traffic descriptors are typically used as QoS markings for packets or frames entering the network?()

    • A、protocol type
    • B、CoS
    • C、DSCP
    • D、IP precedence
    • E、destination address
    • F、input interface

    正确答案:B,C,D

  • 第15题:

    Which three WLC items are required to properly enable queuing with TSPEC for voice traffic?()

    • A、configure WLAN setting to enable WMM
    • B、configure WLAN Aironet information elements enabled
    • C、configure global 802.11b/g or 802.11a,or both,voice CAC
    • D、configure WLAN QoS Platinum
    • E、configure DTIM = 2

    正确答案:A,C,D

  • 第16题:

    Which three components are part of the Intelligent Network Services provided by the Cisco AVVID framework? ()

    • A、IP telephony
    • B、security
    • C、IP multicasting
    • D、QoS

    正确答案:B,C,D

  • 第17题:

    Which three components are part of the Intelligent Network Services provided by the Cisco AVVIDframework? ()

    • A、 IP telephony
    • B、 security
    • C、 IP multicasting
    • D、 QoS

    正确答案:B,C,D

  • 第18题:

    You need to configure a new Cisco router to be installed in the Company VOIP network.  Which  three interface commands will configure the switch port to support a connected Cisco phone and  to trust the CoS values received on the port if CDP discovers that a Cisco phone is attached? ()

    • A、switchport voice vlan vlan-id
    • B、mls qos trust device cisco-phone
    • C、switchport priority extend cos_value
    • D、mls qos trust cos
    • E、mls qos trust override cos

    正确答案:A,B,D

  • 第19题:

    多选题
    The Cisco NAC Appliance is able to check which three items before allowing network access?()
    A

    client antivirus software state

    B

    personal firewall settings

    C

    wireless cell bandwidth availability

    D

    IOS versions for routers and switches

    E

    appropriate client patch management level

    F

    appropriate QoS settings for client application Answer:


    正确答案: A,D
    解析: 暂无解析

  • 第20题:

    多选题
    Which two statements about the QoS policy generation phase of the Cisco SDM QoS wizard are true? ()
    A

    The SDM QoS wizard will create two real-time traffic classes to handle VoIP and voice signaling packets.

    B

    The SDM QoS wizard will create three real-time traffic classes to handle VoIP, voice signaling, and video packets.

    C

    The SDM QoS wizard will create four real-time traffic classes to handle VoIP, voice signaling, video, and video streaming packets.

    D

    The SDM QoS wizard will create two business-critical traffic classes to handle transactional and network management packets.

    E

    The SDM QoS wizard will create three business-critical traffic classes to handle transactional, network management, and routing packets.

    F

    The SDM QoS wizard will create four business-critical traffic classes to handle transactional, network management, routing, and best-effort packets.


    正确答案: C,F
    解析: 暂无解析

  • 第21题:

    多选题
    The Cisco AutoQoS feature is being used throughout the Company VOIP network.  Which three  statements about this feature are true?()
    A

    The mls qos global configuration command must be entered before configuring AutoQoS.

    B

    CEF must be enabled.

    C

    The no auto qos voip command is used to disable Cisco AutoQos and revoke all  configurations generated by Cisco AutoQos.

    D

    CDP must be enabled.

    E

    SNMP must be enabled.


    正确答案: D,B
    解析: 暂无解析

  • 第22题:

    多选题
    You need to configure a new Cisco router to be installed in the Company VOIP network.  Which  three interface commands will configure the switch port to support a connected Cisco phone and  to trust the CoS values received on the port if CDP discovers that a Cisco phone is attached? ()
    A

    switchport voice vlan vlan-id

    B

    mls qos trust device cisco-phone

    C

    switchport priority extend cos_value

    D

    mls qos trust cos

    E

    mls qos trust override cos


    正确答案: B,C
    解析: 暂无解析

  • 第23题:

    多选题
    Cisco AutoQoS takes the interface type and bandwidth into consideration when configuring which three QoS features?()
    A

    voice compression methodology

    B

    LLQ

    C

    CRTP

    D

    routing protocol

    E

    LFI

    F

    trust boundary


    正确答案: A,D
    解析: 暂无解析

  • 第24题:

    多选题
    Which three WLC items are required to properly enable queuing with TSPEC for voice traffic?()
    A

    configure WLAN setting to enable WMM

    B

    configure WLAN Aironet information elements enabled

    C

    configure global 802.11b/g or 802.11a,or both,voice CAC

    D

    configure WLAN QoS Platinum

    E

    configure DTIM = 2


    正确答案: B,D
    解析: 暂无解析