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Which two VoIP capabilities are utilized when the CallManager and the gateway are configured for Survivable Remote Site Telephony？（）A、 Analog phones， connected to the PSTN， act as internal call agents if IP communication to the CallManager is lost.B、 An o

题目

Which two VoIP capabilities are utilized when the CallManager and the gateway are configured for Survivable Remote Site Telephony？（）

  • A、 Analog phones， connected to the PSTN， act as internal call agents if IP communication to the CallManager is lost.
  • B、 An onsite gateway reroutes calls over the PSTN if IP communication to the CallManager is lost.
  • C、 The IP phones can reroute calls over the PSTN if IP communication to the CallManager is lost.
  • D、 Local voice gateways can assume the function of a call agent if IP communication to the CallManager is lost.
  • E、 IP phones use an internal call agent if IP communication to the CallManager is lost.
相似考题

1.What are two features provided by the Junos Pulse client?()A. 802.1XB. video messagingC. IPsecD. VoIP

2.Which of the following is primarily used for VoIP?()A.TLSB.RDFC.NTPD.RTP

3.Which two Cisco AutoQoS configuration statements are true？ （）A、the auto discovery qos command is supported on serial interfaces， subinterfaces， and virtual interfacesB、CEF must be enabled before configuring the auto discovery qos commandC、the auto discovery qos privilege EXEC command must be configured on a router for several days to collect a sampling of data trafficD、the auto qos trust command relies on NBAR to provide VoIP classificationE、the auto qos voip command configures the voip classification on routers and switches

4.Which of the following protocols is commonly used for VoIP technology?()A.TelnetB.SMTPC.SIPD.SNMP

更多“Which two VoIP ”相关问题

  • 第1题：

    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

    正确答案:A,C,E

  • 第2题：

    Which two statements best describe Cisco IOS IP SLA？（）

    • A、only implemented between Cisco source and destination-capable devices
    • B、statistics provided by syslog， CLI， and SNMP
    • C、measures delay， jitter， packet loss， and voice quality
    • D、only monitors VoIP traffic flows
    • E、provides active monitoring
    • F、provides passive monitoring

    正确答案:C,E

  • 第3题：

    What are two reasons for packet loss on a VoIP connection？（）

    • A、serialization delay
    • B、overrun
    • C、full buffers and queues
    • D、propagation delay
    • E、shaping delay
    • F、TCP header errors

    正确答案:B,C

  • 第4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5题：

    Which two items best describe a Cisco IOS IP SLA responder？（）

    • A、required at the destination to implement Cisco IOS IP SLA services
    • B、improves measurement accuracy
    • C、required for VoIP jitter measurements
    • D、provides security on Cisco IOS IP SLA messages via LEAP or EAP-FAST authentication
    • E、responds to one Cisco IOS IP SLA operation per port
    • F、stores the resulting test statistics

    正确答案:B,C

  • 第6题：

    You need to configure port security on switch R1.  Which two statements are true about this  technology？ （）

    • A、 Port security can be configured for ports supporting VoIP.
    • B、 With port security configured， four MAC addresses are allowed by default.
    • C、 The network administrator must manually enter the MAC address for each device in order for  the switch to allow connectivity.
    • D、  Withsecurity configured， only one MAC addresses is allowed by default.  
    • E、 Port security cannot be configured for ports supporting VoIP.

    正确答案:A,D

  • 第7题：

    Which of the following protocols is commonly used for VoIP technology?（）

    • A、Telnet
    • B、SMTP
    • C、SIP
    • D、SNMP

    正确答案:C

  • 第8题：

    多选题
    Which two Cisco AutoQoS configuration statements are true？ （）
    A

    the auto discovery qos command is supported on serial interfaces， subinterfaces， and virtual interfaces

    B

    CEF must be enabled before configuring the auto discovery qos command

    C

    the auto discovery qos privilege EXEC command must be configured on a router for several days to collect a sampling of data traffic

    D

    the auto qos trust command relies on NBAR to provide VoIP classification

    E

    the auto qos voip command configures the voip classification on routers and switches


    正确答案： E,C
    解析： 暂无解析

  • 第9题：

    多选题
    Which two items best describe a Cisco IOS IP SLA responder？（）
    A

    required at the destination to implement Cisco IOS IP SLA services

    B

    improves measurement accuracy

    C

    required for VoIP jitter measurements

    D

    provides security on Cisco IOS IP SLA messages via LEAP or EAP-FAST authentication

    E

    responds to one Cisco IOS IP SLA operation per port

    F

    stores the resulting test statistics


    正确答案： D,C
    解析： 暂无解析

  • 第10题：

    多选题
    During voice implementation，  which two required items are configured at an access layer switch connected to an IP phone to provide VoIP communication？（）
    A

    allowed codecs

    B

    native VLAN

    C

    auxiliary VLAN

    D

    Cisco Unified Communications Manager IP address

    E

    RSTP


    正确答案： D,C
    解析： 暂无解析

  • 第11题：

    多选题
    You need to configure port security on switch R1.  Which two statements are true about this  technology？ （）
    A

    Port security can be configured for ports supporting VoIP.

    B

    With port security configured， four MAC addresses are allowed by default.

    C

    The network administrator must manually enter the MAC address for each device in order for  the switch to allow connectivity.

    D

      Withsecurity configured， only one MAC addresses is allowed by default.

    E

    Port security cannot be configured for ports supporting VoIP.


    正确答案： A,E
    解析： 暂无解析

  • 第12题：

    多选题
    Which two statements best describe Cisco IOS IP SLA？（）
    A

    only implemented between Cisco source and destination-capable devices

    B

    statistics provided by syslog， CLI， and SNMP

    C

    measures delay， jitter， packet loss， and voice quality

    D

    only monitors VoIP traffic flows

    E

    provides active monitoring

    F

    provides passive monitoring


    正确答案： E,A
    解析： 暂无解析

  • 第13题：

    During voice implementation，  which two required items are configured at an access layer switch connected to an IP phone to provide VoIP communication？（）

    • A、allowed codecs
    • B、native VLAN
    • C、auxiliary VLAN
    • D、Cisco Unified Communications Manager IP address
    • E、RSTP

    正确答案:B,C

  • 第14题：

    What are two features provided by the Junos Pulse client?（）

    • A、802.1X
    • B、video messaging
    • C、IPsec
    • D、VoIP

    正确答案:B,D

  • 第15题：

    Which two statements are true about the digital audio in a VoIP network？ （）

    • A、 Standard encoding techniques create an uncompressed digital data rate of 4000 bps.
    • B、 Standard encoding techniques create an uncompressed digital data rate of 8000 bps.
    • C、 Standard encoding techniques create an uncompressed digital data rate of 64，000 bps.
    • D、 Voice quality is not a concern if compression is not used.
    • E、 Two methods of quantization are linear and logarithmic.
    • F、 Two methods of compression are u-law and a-law.

    正确答案:C,E

  • 第16题：

    Which is a valid Cisco CRS 4.0 deployment scenario? （）

    • A、redundant Cisco CRS Engines and a simplex database server  
    • B、redundant Cisco CRS Engines with five simplex VoIP monitoring servers  
    • C、redundant Cisco CRS Engines and databases running on two different nodes outside of the Cisco CRS cluster  
    • D、redundant Cisco CRS Engines and databases with two VoIP monitoring servers and three recording servers

    正确答案:B

  • 第17题：

    Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）

    • 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

    正确答案:A,C,E

  • 第18题：

    Which of the following is a performance optimization technology?（）

    • A、QoS
    • B、Trunking
    • C、Spanning
    • D、VoIP

    正确答案:A

  • 第19题：

    Which of the following WAN technologies has the GREATEST latency and is not recommended for VoIP?（）

    • A、ISDN
    • B、DSL
    • C、Satellite
    • D、Cable

    正确答案:C

  • 第20题：

    多选题
    Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）
    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


    正确答案： C,D
    解析： 暂无解析

  • 第21题：

    多选题
    What are two reasons for packet loss on a VoIP connection？（）
    A

    serialization delay

    B

    overrun

    C

    full buffers and queues

    D

    propagation delay

    E

    shaping delay

    F

    TCP header errors


    正确答案： A,D
    解析： 暂无解析

  • 第22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23题：

    单选题
    Final exams were incredibly comprehensive, and went on for two weeks, which length made it seem as if they would never end.
    A

    comprehensive, and went on for two weeks, which length made

    B

    comprehensive and since they went on for two weeks, that made

    C

    comprehensive and, since they went on for two weeks, to make

    D

    comprehensive and went on for two weeks, which made

    E

    comprehensive and, by going on for two weeks, it made


    正确答案： B
    解析：
    原句中“which”的使用不正确。D项表意最清晰。E项中的“it”指代模糊。C项语法上不正确。

  • 第24题：

    多选题
    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


    正确答案： C,B
    解析： 暂无解析

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