When implementing MPLS VPNs between CE and PE routers, which of these statements is correct?As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers.Refer to the following descriptio

题目

When implementing MPLS VPNs between CE and PE routers, which of these statements is correct?As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers.Refer to the following descriptions, which one is making sense?（）

A. If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistribution

B. If using IS-IS as the PE-CE routing protocol, no redistribution is required

C. If using static routes between the CE and PE routers, no redistribution of other VPN routes is required

D. If PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required

相似考题

1.Which type of VPN router is not required to run MPLS?()A. Provider Core (P)B. Provider Edge (PE)C. Customer Edge (CE)D. Customer Boundary (CB)

2.If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkB、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedC、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorD、A SHAM link is part of OSPF network of MPLS-VPN provider

3.Which technology is an example of the need for a designer to clearly define features and designedperformance when designing advanced WAN services with a service provider？（）A、 FHRP to remote branches.B、 Layer 3 MPLS VPNs routing.C、 Control protocols （for example Spanning Tree Protocol） for a Layer 3 MPLS service.D、 Intrusion prevention， QoS， and stateful firewall support network wide.

4.Which two of these are characteristics of MPLS VPNs?()A. Layer 3 MPLS VPNs can forward only IP packetsB. Layer 2 MPLS VPNs can forward any network protocolC. MPLS label paths are automatically formed based on Layer 2 framesD. Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE. In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies

参考答案和解析
参考答案：D
更多“When implementing MPLS VPNs between CE and PE routers, which of these statements is correct?As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and ”相关问题

  • 第1题：

    What is a reason for implementing MPLS in a network？（）

    • A、MPLS eliminates the need of an IGP in the core.
    • B、MPLS reduces the required number of BGP-enabled devices in the core.
    • C、Reduces routing table lookup since only the MPLS core routers perform routing table lookups.
    • D、MPLS eliminates the need for fully meshed connections between BGP enabled devices.

    正确答案:B

  • 第2题：

    When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers. Refer to the following descriptions, which one is making sense?（）

    • A、If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistribution
    • B、If using IS-IS as the PE-CE routing protocol, no redistribution is required
    • C、If using static routes between the CE and PE routers, no redistribution of other VPN routes is required
    • D、If PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required

    正确答案:D

  • 第3题：

    When BGP is used as the PE-CE routing protocol, which of these statements is correct?（）

    • A、On the CE router, PE neighbors must be configured in the VRF context on the CE router
    • B、On PE routers, the CE IBGP neighbors are configured in the global BGP configuration
    • C、On PE routers, the CE EBGP neighbors are configured in the VRF context
    • D、A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors

    正确答案:C

  • 第4题：

    Which three functions can CCC be used for？（）

    • A、To interconnect VLANS
    • B、To interconnect ATM VCs
    • C、To interconnect MPLS LSPs
    • D、To interconnect MPLS VPNs

    正确答案:A,B,C

  • 第5题：

    Which two of these are characteristics of MPLS VPNs？ （）

    • A、 Layer 3 MPLS VPNs can forward only IP packets
    • B、 Layer 2 MPLS VPNs can forward any network protocol
    • C、 MPL S label paths are automatically formed based on Layer 2 frames
    • D、 Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames
    • E、 In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policies

    正确答案:A,B

  • 第6题：

    When implementing 802.1X on Teleworker routers and using separate DHCP address pools for Teleworker and Home-user devices, traffic between devices can be restricted. How can you best accomplish this?（）

    • A、Access Lists between the inside interface and loopback interface
    • B、Context Based Access Control
    • C、Dynamic Host Configuration Protocol
    • D、Network Address translation

    正确答案:A

  • 第7题：

    多选题
    Which four statements about the Carrier Supporting Carrier （CSC） feature are true？ （）
    A

    MPLS is required between the PE and CE routers that connect the backbone carrier to the customer carrier.

    B

    The backbone carrier must enable the PE router to check that the packets it receives from the CErouter contain only the labels that the PE router advertised to the CE router.

    C

    Every packet that crosses the backbone carrier must be encapsulated so that the packet includes MPLS labels

    D

    AII PE routers that link the backbone carrier to the customer carrier must run Route Target Rewrite.

    E

    Arouting protocol is required between the PE and CE routers that connect the backbone carrierto thecustomer carrier. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.


    正确答案： B,A
    解析： 暂无解析

  • 第8题：

    单选题
    Which type of VPN router is not required to run MPLS?（）
    A

    Provider Core (P)

    B

    Provider Edge (PE)

    C

    Customer Edge (CE)

    D

    Customer Boundary (CB)


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Which statement is correct about an OSPF sham-link？（）
    A

    A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.

    B

    A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.

    C

    A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.

    D

    A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.

    E

    A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    When BGP is used as the PE-CE routing protocol, which of these statements is correct?（）
    A

    On the CE router, PE neighbors must be configured in the VRF context on the CE router

    B

    On PE routers, the CE IBGP neighbors are configured in the global BGP configuration

    C

    On PE routers, the CE EBGP neighbors are configured in the VRF context

    D

    A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors


    正确答案： C
    解析： 暂无解析

  • 第11题：

    多选题
    If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）
    A

    A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor link

    B

    A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchanged

    C

    A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor door

    D

    A SHAM link is part of OSPF network of MPLS-VPN provider


    正确答案： C,D
    解析： 暂无解析

  • 第12题：

    单选题
    When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers. Refer to the following descriptions, which one is making sense?（）
    A

    If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistribution

    B

    If using IS-IS as the PE-CE routing protocol, no redistribution is required

    C

    If using static routes between the CE and PE routers, no redistribution of other VPN routes is required

    D

    If PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required


    正确答案： B
    解析： 暂无解析

  • 第13题：

    Which statement is correct about an OSPF sham-link？（）

    • A、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.
    • B、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.
    • C、A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.
    • D、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.
    • E、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.

    正确答案:B

  • 第14题：

    Which four statements about the Carrier Supporting Carrier （CSC） feature are true？ （）

    • A、MPLS is required between the PE and CE routers that connect the backbone carrier to the customer carrier.
    • B、The backbone carrier must enable the PE router to check that the packets it receives from the CErouter contain only the labels that the PE router advertised to the CE router.
    • C、Every packet that crosses the backbone carrier must be encapsulated so that the packet includes MPLS labels
    • D、AII PE routers that link the backbone carrier to the customer carrier must run Route Target Rewrite.
    • E、Arouting protocol is required between the PE and CE routers that connect the backbone carrierto thecustomer carrier. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.

    正确答案:A,B,C,E

  • 第15题：

    Which type of VPN router is not required to run MPLS?（）

    • A、Provider Core (P)
    • B、Provider Edge (PE)
    • C、Customer Edge (CE)
    • D、Customer Boundary (CB)

    正确答案:C

  • 第16题：

    Which two statements about Layer 3 MPLS VPN are true？（）

    • A、The virtual routing and forwarding table is separate from the global routing table that exists on PE routers. Routes are injected into the VRF from the CE-PE routing protocols for that VRF and any MP-BGP announcements that match the defined VRF RTs
    • B、Multiprotocol Border Gateway Protocol is run between PE and CE routers to exchange customer prefixes in a VPNv4 format
    • C、A customer edge router peers at Layer 3 to the provider edge. The PE-CE interface runs either a dynamic routing protocol （eBGP， RIPv2， EIGRP， OSPF） or a static routing protocol （Static， Connected）
    • D、VPNv4 address is the combination of the RT and customer IPv4 prefix. These VPNv4 prefixes are passed in MP-BGP

    正确答案:A,C

  • 第17题：

    When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? （）

    • A、If using IS-IS as the PE-CE routing protocol, no redistribution is required.
    • B、If using static routes between the CE and PE routers, no redistribution of other VPN routes is required.
    • C、If the PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required.
    • D、If RIP is the routing protocol that is used between the PE-CE routers, no redistribution is required, but any other protocol will require redistribution.
    • E、If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistribution.

    正确答案:C

  • 第18题：

    Which two of these are characteristics of MPLS VPNs?（）

    • A、Layer 3 MPLS VPNs can forward only IP packets
    • B、Layer 2 MPLS VPNs can forward any network protocol
    • C、MPLS label paths are automatically formed based on Layer 2 frames
    • D、Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames
    • E、In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies

    正确答案:A,B

  • 第19题：

    多选题
    Which three functions can CCC be used for？（）
    A

    To interconnect VLANS

    B

    To interconnect ATM VCs

    C

    To interconnect MPLS LSPs

    D

    To interconnect MPLS VPNs


    正确答案： C,A
    解析： 暂无解析

  • 第20题：

    单选题
    Which statement about implementing the Cisco IPv6 provider Edge Router over MPLS is true？（）
    A

    6PE feature is supported over tunnels other than RSVP-TE tunnels

    B

    Core MPLS routers are supporting IPv6 ONLY

    C

    6PE feature is not supported over tunnels other than RSVP-TE tunnels

    D

    Core MPLS routers are supporting IPv4 only


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    When EIGRP is used as the PE-CE routing protocol which of these statements is correct?（）
    A

    EIGRP can be used only as the PE-CE routing protocol if the PE and CE routers are in the same AS

    B

    Other EIGRP AS routes are automatically advertised to the CE router and do not require a redistribution configuration command to be configured

    C

    Unlike other routing protocols that are used between PE and CE routers, EIGRP supports backdoor links

    D

    Configure of the VPN is only required on the PE router


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    In BGP MPLS VPNs, which router maintains VPN-specific routing tables, also known as VRFs?（）
    A

    P

    B

    CE

    C

    PE

    D

    SP


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    Which technology is an example of the need for a designer to clearly define features and designedperformance when designing advanced WAN services with a service provider？（）
    A

     FHRP to remote branches.

    B

     Layer 3 MPLS VPNs routing.

    C

     Control protocols （for example Spanning Tree Protocol） for a Layer 3 MPLS service.

    D

     Intrusion prevention， QoS， and stateful firewall support network wide.


    正确答案： B
    解析： 暂无解析

  • 第24题：

    单选题
    What is a reason for implementing MPLS in a network？（）
    A

    MPLS eliminates the need of an IGP in the core.

    B

    MPLS reduces the required number of BGP-enabled devices in the core.

    C

    Reduces routing table lookup since only the MPLS core routers perform routing table lookups.

    D

    MPLS eliminates the need for fully meshed connections between BGP enabled devices.


    正确答案： A
    解析： 暂无解析

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