下列关于RPF(Reverse Path Forwarding)的说法正确的是()A.RPF是广播数据采用的数据包转发方法B.RPF是组播数据包采用的数据转发方法C.RPF依据组播包源地址执行数据转发D.RPF依据组播包目的地址执行数据转发

题目
下列关于RPF(Reverse Path Forwarding)的说法正确的是()

A.RPF是广播数据采用的数据包转发方法

B.RPF是组播数据包采用的数据转发方法

C.RPF依据组播包源地址执行数据转发

D.RPF依据组播包目的地址执行数据转发


相似考题
更多“下列关于RPF(Reverse Path Forwarding)的说法正确的是() ”相关问题
  • 第1题:

    Refer to the exhibit. Which two conclusions can be drawn from the debug ip igmp output?()

    A. The router sent an IGMP version 2 query out interface Ethernet1 at multicast address 224.0.0.1.

    B. Router RTA received an IGMP report version 1 from host 192.168.9.1.

    C. Reverse Path Forwarding (RPF) is ena bled for 192.168.9.4.

    D. Reverse Path Forwarding (RPF) is enabled for 224.0.1.40.

    E. The IP multicast groups are 224.0.0.1, 224.0.1.40, and 239.255.0.1.

    F. IP PIM RP mapping is static.


    参考答案:A, B

  • 第2题:

    在组播网络中RPF代表什么?()。

    A.Reverse protocol forwarding

    B.Reverse protocol flooding

    C.Reverse path forwarding

    D.Reverse path flooding


    参考答案:C

  • 第3题:

    Unicast Reverse Path Forwarding (Urpf ) can work in the following modes:()

    • A、Express mode
    • B、Strict mode
    • C、Loose mode
    • D、Tunnel mode
    • E、Safe mode

    正确答案:B,C

  • 第4题:

    what is RPF( Reverse Path Forwarding )?


    正确答案:Forwarding multicast traffic away from the source, rather than to the receiver, is called Reverse Path Forwarding (RPF). This RPF check helps to guarantee that the distribution tree will be loop-free.

  • 第5题:

    The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart,which mechanism is used tocontinue forwarding packets during a switchover?()

    • A、Reverse Path Forwarding
    • B、Hardware-based forwarding
    • C、UDP forwarding
    • D、Layer 2 Forwarding

    正确答案:B

  • 第6题:

    Which IOS features are used to avoid Routing loops when dynamic Routing protocols are used betweenPE and CE in MPLS-VPN networks?()

    • A、Site Of Origin SOO.
    • B、SHAM links with OSPF
    • C、BGP cost community
    • D、BGP feature allow-as in
    • E、RPF Reverse Path forwarding.
    • F、Access-list Control in Distance Vector protocol like RIP and EIGRP.

    正确答案:A,F

  • 第7题:

    在组播网络中RPF代表什么?()。

    • A、Reverse protocol forwarding
    • B、Reverse protocol flooding
    • C、Reverse path forwarding
    • D、Reverse path flooding

    正确答案:C

  • 第8题:

    单选题
    Which of the following is the most effective technique to prevent source IPAddress spoofing?()
    A

     policy based routing (PBR)

    B

     unicast reverse path forwarding (uRPF)

    C

     lock and keyACL

    D

     RFC 1918filtering

    E

     IP source routing


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    How is an RSVP resv message sent back to the ingress router?()
    A

     reverse path of the RRO

    B

     least cost to the ingress router

    C

     shortest path to the egress router

    D

     reverse path of the path vector TLV


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?()
    A

    ip sa-validate

    B

    ip split-horizon

    C

    ip access-routes

    D

    ip filter-options


    正确答案: A
    解析: 暂无解析

  • 第11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12题:

    多选题
    Which two statements are true about Unicast Reverse Path Forwarding Loose Mode?()
    A

    It is used in multihome network scenarios.

    B

    It can be used with BGP to mitigate DoS and DDoS.

    C

    It does not need to have CEF enabled.

    D

    It is enabled via the interface level command ip verify unicast reverse-path.

    E

    It cannot be used with classification access lists.


    正确答案: C,A
    解析: 暂无解析

  • 第13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


    参考答案:A, B

  • 第14题:

    Which of the following is the most effective technique to prevent source IPAddress spoofing?()

    • A、 policy based routing (PBR)
    • B、 unicast reverse path forwarding (uRPF)
    • C、 lock and keyACL
    • D、 RFC 1918filtering
    • E、 IP source routing

    正确答案:B

  • 第15题:

    Which two statements are true about Unicast Reverse Path Forwarding Loose Mode?()

    • A、It is used in multihome network scenarios.
    • B、It can be used with BGP to mitigate DoS and DDoS.
    • C、It does not need to have CEF enabled.
    • D、It is enabled via the interface level command ip verify unicast reverse-path.
    • E、It cannot be used with "classification" access lists.

    正确答案:A,B

  • 第16题:

    How is an RSVP resv message sent back to the ingress router?()

    • A、reverse path of the RRO
    • B、least cost to the ingress router
    • C、shortest path to the egress router
    • D、reverse path of the path vector TLV

    正确答案:A

  • 第17题:

    Which of the following IOS features can prevent IP spoofing attacks?()

    • A、PPP over Ethernet
    • B、Cisco Express forwarding
    • C、MPLS traffic Engineering
    • D、IS-IS routing
    • E、Unicast Reverse Path Forwarding(uRPF)

    正确答案:E

  • 第18题:

    Unicast Reverse Path Forwarding can perform all of these actions except which one?()

    • A、examine all packets received to make sure that the source addresses and source interfaces appear in the routing table and match the interfaces where the packets were received
    • B、check to see if any packet received at a router interface arrives on the best return path
    • C、combine with a configured ACL
    • D、log its events,if you specify the logging options for the ACL entries used by the unicast rpf command
    • E、inspect IP packets encapsulated in tunnels, such as GRE

    正确答案:E

  • 第19题:

    What is one of the uses of MBGP routes?()

    • A、DVMRP hold-time period
    • B、Rendezvous point election
    • C、reverse path forwarding checks
    • D、interdomain multicast next hops

    正确答案:C

  • 第20题:

    多选题
    Unicast Reverse Path Forwarding (Urpf ) can work in the following modes:()
    A

    Express mode

    B

    Strict mode

    C

    Loose mode

    D

    Tunnel mode

    E

    Safe mode


    正确答案: A,D
    解析: 暂无解析

  • 第21题:

    单选题
    What is the term "ordered control" mean regarding how MPLS LSPs are established?()
    A

    establish starting at the egress router going back to the ingress router

    B

    establish starting at the ingress router going downstream to the egress router

    C

    establish when a router learns of a new prefix

    D

    establish when the path correctly matches the reverse path forwarding check


    正确答案: B
    解析: 暂无解析

  • 第22题:

    多选题
    下列关于RPF(Reverse Path Forwarding)的说法正确的是()
    A

    RPF是广播数据采用的数据包转发方法

    B

    RPF是组播数据包采用的数据转发方法

    C

    RPF依据组播包源地址执行数据转发

    D

    RPF依据组播包目的地址执行数据转发


    正确答案: C,A
    解析: 暂无解析

  • 第23题:

    问答题
    what is RPF( Reverse Path Forwarding )?

    正确答案: Forwarding multicast traffic away from the source, rather than to the receiver, is called Reverse Path Forwarding (RPF). This RPF check helps to guarantee that the distribution tree will be loop-free.
    解析: 暂无解析