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

题目
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.


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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 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4题:

    Which two of these multicast deployments are most susceptible to attacks from unknown sources?()

    • A、 ASM
    • B、 BiDir PIM
    • C、 PIM-SM RP
    • D、 RP-Switchover
    • E、 Source Specific Multicast

    正确答案:A,B

  • 第5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6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7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8题:

    Which two statements are true about the implementation of QoS? ()

    • A、 Implementing DiffServ involves the configuration of RSVP.
    • B、 Implementing IntServ allows QoS to be performed by configuring only the ingress and egress devices.
    • C、 Implementing IntServ involves the utilization of RSVP.
    • D、 Traffic should be classified and marked by the core network devices.
    • E、 Traffic should be classified and marked as close to the edge of the network as possible.

    正确答案:C,E

  • 第9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 two statements about an IDS are true?()

    • A、The IDS is in the traffic path.
    • B、The IDS can send TCP resets to the source device.
    • C、The IDS can send TCP resets to the destination device.
    • D、The IDS listens promiscuously to all traffic on the network.
    • E、Default operation is for the IDS to discard malicious traffic.

    正确答案:B,D

  • 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 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17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18题:

    Which two statements are true about network voice traffic? (Choose two.)()

    • A、 Voice traffic is affected more by link speed than FTP traffic is.
    • B、 Voice traffic is affected more by packet delays than FTP traffic is.
    • C、 Voice streams involve larger packet sizes than most TCP network traffic involves.
    • D、 Voice traffic is more sensitive to packet loss than TCP network traffic is.
    • E、 Voice traffic requires QOS mechanisms only in heavily loaded network segments.

    正确答案:B,D

  • 第19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20题:

    Which two statements are true about precedence values in policy?() (Choose two.)

    • A、1 is the default precedence.
    • B、A lower number is preferred.
    • C、A higher number is preferred.
    • D、100 is the default precedence.

    正确答案:B,D

  • 第21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