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正确答案:B
更多“When building an IP multicast do”相关问题
  • 第1题:

    When was the building()?

    • A、complete
    • B、completing
    • C、completed
    • D、completes

    正确答案:C

  • 第2题:

    Which three IP multicast address related statements are true?()

    • A、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3
    • B、Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget her
    • C、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1
    • D、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers
    • E、The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses
    • F、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA

    正确答案:A,E,F

  • 第3题:

    Which three IP multicast address related statements are true? (Choose three.) () 

    • A、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted  with Time to Live (TTL) greater than 1.
    • B、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.
    • C、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and  IGMPv3.
    • D、Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1  and 238.1.1.1 could not be used together.
    • E、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA
    • F、The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in  purpose to RFC 1918 private unicast addresses.

    正确答案:C,E,F

  • 第4题:

    When configuring a wlan controller for a voice application using cisco 7920 wireless ip phones. which two general control settings should you select?()

    • A、multicast on
    • B、aggressive load balancing off
    • C、multicast off
    • D、ap fallback on
    • E、aggressive load balancing on
    • F、ap fallback off

    正确答案:B,C

  • 第5题:

    Forward ip multicast packets based on what?


    正确答案: IP multicast packets is forwarded based RPF and multicast routing table.
    After multicast packets received on the interface of a router,RPF check will be performed.If the packets pass through RPF check, the router will look up the multicast routing table for the packets and packets will be transfer out interfaces in the outgoing interface list of the routing table entry.

  • 第6题:

    When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.()

    • A、PIM sparse - dense
    • B、Bidir - PIM
    • C、PIM - RP
    • D、PIM - DM
    • E、PIM - SM

    正确答案:D

  • 第7题:

    Which three IP multicast group concepts are true? (Choose three.) ()

    • A、 If a packet is sent to a multicast group address, all members of the multicast group will receive it
    • B、 If a packet is sent to a multicast group address, the multicast frame contains the source multicast  address
    • C、 A router does not have to be a member of a multicast group to receive multicast data.
    • D、 A router does not have to be a member of a multicast group to send to the group.
    • E、 A router must be a member of a multicast group to receive multicast data.
    • F、 A router must be a member of a multicast group to send to the group.

    正确答案:A,D,E

  • 第8题:

    A small office in which all workstations are using an ISP provided IP range has noticed a consistent decrease in network traffic speed. The decrease does not occur when the gateway to the ISP is disconnected. Which of the following should the administrator implement?()

    • A、Multicast addressing
    • B、Load balancing
    • C、Address translation
    • D、DHCP

    正确答案:C

  • 第9题:

    单选题
    When using Overlay Transport Virtualization (OTV), how do L2 multicast frames traverse the overlay?()
    A

     The L2 multicast frames are encapsulated in an OTV packet using the configured control-group multicast address for transport

    B

     The L2 multicast frames are dropped because multicast cannot be carried across the overlay 

    C

     The L2 multicast frames are encapsulated in an OTV packet using the configured data-group multicast address for transport

    D

     The L2 multicast frames are forwarded natively across the overlay based on their multicast IDs


    正确答案: C
    解析: 暂无解析

  • 第10题:

    多选题
    Which three statements about the EIGRP routing protocol are true?()
    A

    EIGRP supports five generic packet types, including hello, database description (DBD), link state request (LSR), link - state update (LSU), and LSAck.

    B

    EIGRP sends periodic hello packets to the multicast IP address 224.0.0.10.

    C

    EIGRP will not form a neighbor relationship with another peer when their K values are mismatched.

    D

    EIGRP sends periodic hello packets to the multicast IP address 224.0.0.9.

    E

    E IGRP will form a neighbor relationship with another peer even when their K values are mismatched.

    F

    EIGRP supports five generic packet types, including hello, update, query, reply, and ACK packets.


    正确答案: B,D
    解析: 暂无解析

  • 第11题:

    单选题
    What is the encapsulation format of an MPLS Multicast VPN (MVPN) packer?()
    A

    IP unicast in IP unicast

    B

    IP multicast in IP anycast

    C

    IP anycast in IP anycast

    D

    IP multicast in IP unicast

    E

    IP multicast in IP multicast

    F

    IP unicast in IP multicast


    正确答案: E
    解析: 暂无解析

  • 第12题:

    单选题
    When building an IP multicast domain using PIM which mode assumes  that other routers do not want to forward multicast packets for the group?()
    A

    PIM - DM

    B

    PIM - SM

    C

    PIM - RP

    D

    CGMP

    E

    IGMP snooping


    正确答案: D
    解析: 暂无解析

  • 第13题:

    Choose two commands that are required to enable multicast on a router, when it is known that thereceivers use a specific functionality of IGMPv3.()

    • A、ip pim rp-address
    • B、ip pim ssm
    • C、ip pim sparse-mode
    • D、ip pim passive

    正确答案:B,C

  • 第14题:

    When configuring a WLAN controller for a voice application using Cisco 7920 wireless IP phones. Whichtwo general control settings should you select?()

    • A、Multicast on
    • B、Aggressive Load Balancing off
    • C、Multicast off
    • D、AP Fallback on
    • E、Aggressive Load Balancing on

    正确答案:B,C

  • 第15题:

    Which two restrictions must the Enterprise Campus network designer consider when evaluatingWAN connectivity options? ()

    • A、 OSPF over multicast EMS or VPLS network may not have consistent broadcast or multicastperformance
    • B、 IP multicast is not supported over Lover 3 MPLS VPN; instead a Layer 2 MPLS WN must beutilized with service provider support
    • C、 QoS requirements with MPLS-VPN must be implemented by the service provider
    • D、 Hierarchical VPLS designs are the least scalable
    • E、 IGMP snooping is not on option with VPLS or EMS; instead administrative scoping or allowingsufficient bandwidth for unnecessary multicast traffic at the edge links is required

    正确答案:A,C

  • 第16题:

    When configuring a WLAN controller for a voice application using Cisco 7920 wireless IP phones,which two general control settings should you select?()

    • A、Aggressive Load Balancing on
    • B、Aggressive Load Balancing off
    • C、Multicast on
    • D、Multicast off
    • E、AP Fallback on
    • F、AP Fallback off

    正确答案:B,D

  • 第17题:

    What is the purpose of a rendezvous point (RP)?()

    • A、acts as a meeting place for sources and receivers of multicast traffic
    • B、used in PIM dense m ode to create a database of all multicast sources
    • C、used in PIM dense and sparse mode to create a database of all multicast sources
    • D、acts as the designated router for a broadcast segment when multicast routing is enabled

    正确答案:A

  • 第18题:

    Which two of these are characteristics of multicast routing? ()

    • A、 multicast routing uses RPF
    • B、 multicast routing is connectionless.
    • C、 In multicast routing, the source of a packet is known.
    • D、 When network topologies change, multicast distribution trees are not rebuilt, but use the originalpath
    • E、 Multicast routing is much like unicast routing, with the only difference being that it has a a groupof receivers rather than just one destination

    正确答案:A,C

  • 第19题:

    What is the encapsulation format of an MPLS Multicast VPN (MVPN) packer?()

    • A、IP unicast in IP unicast
    • B、IP multicast in IP anycast
    • C、IP anycast in IP anycast
    • D、IP multicast in IP unicast
    • E、IP multicast in IP multicast
    • F、IP unicast in IP multicast

    正确答案:E

  • 第20题:

    单选题
    When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.()
    A

    PIM sparse - dense

    B

    Bidir - PIM

    C

    PIM - RP

    D

    PIM - DM

    E

    PIM - SM


    正确答案: C
    解析: 暂无解析

  • 第21题:

    多选题
    Which three IP multicast group concepts are true? (Choose three.) ()
    A

    If a packet is sent to a multicast group address, all members of the multicast group will receive it

    B

    If a packet is sent to a multicast group address, the multicast frame contains the source multicast  address

    C

    A router does not have to be a member of a multicast group to receive multicast data.

    D

    A router does not have to be a member of a multicast group to send to the group.

    E

    A router must be a member of a multicast group to receive multicast data.

    F

    A router must be a member of a multicast group to send to the group.


    正确答案: E,B
    解析: 暂无解析

  • 第22题:

    问答题
    Forward ip multicast packets based on what?

    正确答案: IP multicast packets is forwarded based RPF and multicast routing table.
    After multicast packets received on the interface of a router,RPF check will be performed.If the packets pass through RPF check, the router will look up the multicast routing table for the packets and packets will be transfer out interfaces in the outgoing interface list of the routing table entry.
    解析: 暂无解析

  • 第23题:

    单选题
    在Quidway S3526交换机上启用组播应用的命令是什么()
    A

    [Quidway]ip multicast routing

    B

    [Quidway]multicast routing-enable 

    C

    [Quidway-Vlan-interface2]multicast routing-enable

    D

    [Quidway-Vlan-interface2]ip multicast routing


    正确答案: A
    解析: 暂无解析