Which two statements are true about the rendezvo us point (RP) in a multicast network?()A. The multicast sources must register with the RP to form the multicast distribution tree.B. An RP is required only in networks running Protocol Independent Multicast

题目
Which two statements are true about the rendezvo us point (RP) in a multicast network?()

A. The multicast sources must register with the RP to form the multicast distribution tree.

B. An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).

C. The mu lticast receivers must register with the RP to form the multicast distribution tree.

D. An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).

E. An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).

F. To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.


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  • 第1题:

    Which two statements about the use of VLANs to segment a network are true?()

    A. VLANs increase the size of collision domains.

    B. VLANs allow logical grouping of users by function.

    C. VLANs simplify switch administration.

    D. VLANs enhance network security.


    参考答案:B, D

  • 第2题:

    Which two statements about NTP version 4 are true?()

    • A、It supports fast synchronization at starting and before network failures
    • B、It supports automatic server discovery
    • C、It uses a fixed-point arithmetion
    • D、It supports the "nanokernel" kernel implementation
    • E、It does not support Public-Key Cryptography

    正确答案:B,D

  • 第3题:

    Which two statements about configuration an unconnected Catalyst Express 500 switch from setup mode using a PC are true?()

    • A、You may use Cisco Network Assistant to set up the initial configuration
    • B、You must use CLI for initial configuration
    • C、You may use either CLI or CAN for configuration
    • D、You may make a direct connection to the PC from any point on the switch
    • E、You may only make a direct connection from the port with the flashing green LED to the PC

    正确答案:A,E

  • 第4题:

    Which two statements are true about L2TP tunnels?() (Choose two.)

    • A、Traffic is clear text
    • B、Traffic is encrypted 
    • C、They are initiated by the LNS
    • D、They are initiated by the LAC

    正确答案:A,D

  • 第5题:

    You need to determine the correct wireless LAN topology for use in the Company network.  Which  three statements are true about the various WLAN topologies?()

    • A、 In ad hoc mode, the Independent Basic Service Set (IBSS) is a framework in which mobile  clients connect directly without an intermediate access point.
    • B、 In Infrastructure mode, the Basic Service Set (BSS) is a framework in which mobile clients use  a single access point for connecting to each other or to wired network resources.
    • C、 In Infrastructure mode, the Extended Services Set (ESS) is a framework in which two or more  Basic Service Sets are connected by a common distribution system (DS).
    • D、 In Infrastructure mode, the Independent Basic Service Setet (IBSS) is a framework in which  mobile clients connect directly without an intermediate access point.
    • E、 In ad hoc mode, the Basic Service Set (BSS) is a framework in which mobile clients use a  single AP for connecting to each other or to wired network resources.
    • F、 In ad hoc mode, the Extended Services Set (ESS) is a framework in which two or more Basic  Service Sets are connected by a common distribution system (DS)

    正确答案:A,B,C

  • 第6题:

    Which three statements are true about Source Specific Multicast?()

    • A、Is best suited for applications that are in the one-to-many category.
    • B、SSM uses shortest path trees only.
    • C、The use of SSM is recommended when there are many sources and it is desirable to keep the amount of mroute state in the routers in the network to a.
    • D、There are no RPs to worry about.

    正确答案:A,B,D

  • 第7题:

    You need to determine where the trust boundaries will be in a new Company VOIP design.  Which  two statements are true about these trust boundaries?()

    • A、Trust boundaries are configured in the core of the network to provide the most efficient  forwarding based upon QoS markings,
    • B、Setting trust boundaries at the edge of the network allows intermediate hop devices to  administer QoS policies without detailed packet identification.
    • C、Trust boundaries are used to determine which QoS mechanism will be applied to the traffic.  
    • D、At the trust boundaries, the untrusted traffic will be marked with a new QoS value appropriate  for the policy in place at the point where the traffic entered the campus network.  
    • E、Trust boundaries define the firewall rules for QoS admission into a network.

    正确答案:B,D

  • 第8题:

    Which two statements about the use of VLANs to segment a network are true? ()

    • A、VLANs increase the size of collision domains.
    • B、VLANs allow logical grouping of users by function.
    • C、VLANs simplify switch administration.
    • D、VLANs enhance network security.

    正确答案:B,D

  • 第9题:

    多选题
    Which two statements are true about the rendezvous poin t (RP) in a multicast network?()
    A

    The multicast sources must register with the RP to form the multicast distribution tree.

    B

    An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).

    C

    The multicast receivers must register with the RP to form the multicast distribution tree.

    D

    An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).

    E

    An RP is required only in networks running Protocol Independent Multicast sparse - dense mode (PIM - SDM).

    F

    To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.


    正确答案: C,A
    解析: 暂无解析

  • 第10题:

    多选题
    Which three statements are true about Source Specific Multicast?()
    A

    Is best suited for applications that are in the one-to-many category.

    B

    SSM uses shortest path trees only.

    C

    The use of SSM is recommended when there are many sources and it is desirable to keep the amount of mroute state in the routers in the network to a.

    D

    There are no RPs to worry about.


    正确答案: C,B
    解析: 暂无解析

  • 第11题:

    多选题
    Which two statements are true about the rendezvo us point (RP) in a multicast network?()
    A

    The multicast sources must register with the RP to form the multicast distribution tree.

    B

    An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).

    C

    The mu lticast receivers must register with the RP to form the multicast distribution tree.

    D

    An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).

    E

    An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).

    F

    To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.


    正确答案: D,A
    解析: 暂无解析

  • 第12题:

    多选题
    Which two multicast protocol statements are true? (Choose two.)  ()
    A

    Dense mode multicast requires explicit join messages from their members.

    B

    Dense mode multicast uses a push model to flood traffic throughout the network and then prunes the  unwanted traffic.

    C

    Sparse mode multicast uses a pull model to send multicast traffic to where it is requested.

    D

    Sparse mode uses reverse path forwarding (RPF) to prune off redundant flows.

    E

    The primary use of sparse mode multicast is for test labs and router performance testing.


    正确答案: A,D
    解析: 暂无解析

  • 第13题:

    Which two statements are true about the rendezvous poin t (RP) in a multicast network?()

    • A、The multicast sources must register with the RP to form the multicast distribution tree.
    • B、An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).
    • C、The multicast receivers must register with the RP to form the multicast distribution tree.
    • D、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).
    • E、An RP is required only in networks running Protocol Independent Multicast sparse - dense mode (PIM - SDM).
    • F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.

    正确答案:D,F

  • 第14题:

    Which three statements are true about IP multicast configuration?()

    • A、PIM sparse - dense mode and PIM dense mode require an RP on the network.
    • B、PIM sparse mode and PIM dense mode require an RP on the network.
    • C、PIM sparse mode interfaces are always added to the multicast routing table in a router.
    • D、PIM sparse mode and PIM sparse - dense mode require an RP on the network.
    • E、PIM dense mode interfaces are always added to the multicast routing table in a router.
    • F、PIM sparse - dense mode acts as PIM dense mode if an RP is not known.

    正确答案:D,E,F

  • 第15题:

    Which two statements are tru e about the rendezvous point (RP) in a multicast network?()

    • A、The multicast sources must register with the RP to form the multicast distribution tree
    • B、An RP is required only in networks running Protocol Independent Multicast dense mode ( PIM DM)
    • C、The multicast receivers must register with the RP to form the multicast distribution tree
    • D、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM)
    • E、An RP is required only in networks running Pro tocol Independent Multicast sparse - dense mode (PIM - SDM)
    • F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP

    正确答案:D,F

  • 第16题:

    Which two statements are true about optical networks?()

    • A、SONET and SDH both use time-division multiplexing.
    • B、An optical transport network system uses time-division multiplexing.
    • C、SONET and SDH both use wavelength-division multiplexing.
    • D、An optical transport network system uses wavelength-division multiplexing.

    正确答案:A,D

  • 第17题:

    Which two statements about RPF checks in Multicast Source Discovery Protocol (MSDP) are true?()

    • A、It prevents message looping, Session Advertisement (SA)messages must be RPF checked
    • B、RPF check should be done against the route to the source S of the corresponding PIM-SM domain
    • C、RPF check should be done against the route to the Rendez-vous Point of the corresponding PIM-SM domain,which originated the SA
    • D、RPF checking Session Advertisement (SA) messages will cause message looping

    正确答案:A,C

  • 第18题:

    Which three statements about anycast RP are true? ()

    • A、MSDP is running between anycast RPs
    • B、Anycast RP provides redundancy and load-sharing capabilities
    • C、Multicast BGP is running between anycast RPs
    • D、In anycast RP,two or more RPs are configured with the same multicast IP address on loopback interfaces
    • E、In anycast RP,two or more RPs are configured with the same unicast IP address on loopback interfaces

    正确答案:A,B,E

  • 第19题:

    Which two statements are true about the rendezvo us point (RP) in a multicast network?()

    • A、The multicast sources must register with the RP to form the multicast distribution tree.
    • B、An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).
    • C、The mu lticast receivers must register with the RP to form the multicast distribution tree.
    • D、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).
    • E、An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).
    • F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.

    正确答案:D,F

  • 第20题:

    多选题
    Which two statements are true about L2TP tunnels?() (Choose two.)
    A

    Traffic is clear text

    B

    Traffic is encrypted 

    C

    They are initiated by the LNS

    D

    They are initiated by the LAC


    正确答案: B,D
    解析: 暂无解析

  • 第21题:

    多选题
    As the Company wireless administrator, you required to be knowledgeable about the wireless LAN  components.  Which two statements about these components are true? ()
    A

    In the autonomous access point solution, control is provided by the WLAN controller.

    B

    In the lightweight access point solution, WLAN management is provided by the WLAN Control  System (WCS).

    C

    In the autonomous access point solution, control is provided by the WDS (Wireless Domain  Services).

    D

    Cisco Aironet autonomous access points cannot be supported by the Cisco Unified Wireless  Network.

    E

    Ii the lightweight access point solution, WLAN management is provided by the WLAN Solution  Engine (WLSE).

    F

    Cisco Aironet lightweight access points cannot be supported by the Cisco Unified Wireless  Network.


    正确答案: B,C
    解析: 暂无解析

  • 第22题:

    多选题
    Which two statements about NTP version 4 are true?()
    A

    It supports fast synchronization at starting and before network failures

    B

    It supports automatic server discovery

    C

    It uses a fixed-point arithmetion

    D

    It supports the nanokernel kernel implementation

    E

    It does not support Public-Key Cryptography


    正确答案: D,B
    解析: 暂无解析

  • 第23题:

    多选题
    Which three statements about anycast RP are true? ()
    A

    MSDP is running between anycast RPs

    B

    Anycast RP provides redundancy and load-sharing capabilities

    C

    Multicast BGP is running between anycast RPs

    D

    In anycast RP,two or more RPs are configured with the same multicast IP address on loopback interfaces

    E

    In anycast RP,two or more RPs are configured with the same unicast IP address on loopback interfaces


    正确答案: B,C
    解析: 暂无解析

  • 第24题:

    多选题
    Which two multicast protocol statements are true?()
    A

    Sparse mode multicast uses a pull model to send multicast traffic to where it is requested

    B

    Dense mode multicast uses a push model to flood traffic throughout the network and then prunes the unwanted traffic

    C

    Dense mode multicast requires explicit join messa ges from their members

    D

    Sparse mode uses reverse path forwarding (RPF) to prune off redundant flows

    E

    The primary use of sparse mode multicast is for test labs and router performance testing


    正确答案: C,E
    解析: 暂无解析