Verified JN0-664 dumps Q&As - 2024 Latest JN0-664 Download [Q39-Q61]

Verified JN0-664 dumps Q&As - 2024 Latest JN0-664 Download

Dumps Questions [2024] Pass for JN0-664 Exam

Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Certification Exam is a professional-level certification offered by Juniper Networks for individuals who want to demonstrate their expertise in the field of service provider routing and switching technologies. Service Provider, Professional (JNCIP-SP) certification exam is designed to test the knowledge, skills, and abilities of candidates in configuring, verifying, and troubleshooting Juniper Networks service provider routing and switching technologies.

Juniper JN0-664 exam, also known as the Service Provider Professional exam, is a certification exam designed for experienced networking professionals seeking to validate their knowledge and skills in advanced routing technologies, security, and service provider operations. JN0-664 exam is intended for professionals who have already achieved Juniper's Service Provider Routing and Switching Professional (JNCIP-SP) certification and have extensive experience in designing, implementing, and troubleshooting complex service provider networks.

 

NEW QUESTION # 39
Exhibit

You must ensure that the VPN backbone is preferred over the back door intra-area link as long as the VPN is available. Referring to the exhibit, which action will accomplish this task?

• A. Configure the OSPF metric on the backup intra-area link that is higher than the L3VPN link.
• B. Configure an import routing policy on the CE routers that rejects OSPF routes learned on the backup intra-area link.
• C. Enable OSPF traffic-engineering.
• D. Create an OSPF sham link between the PE routers.

Answer: D

Explanation:
Explanation
A sham link is a logical link between two PE routers that belong to the same OSPF area but are connected through an L3VPN. A sham link makes the PE routers appear as if they are directly connected, and prevents OSPF from preferring an intra-area back door link over the VPN backbone. To create a sham link, you need to configure the local and remote addresses of the PE routers under the [edit protocols ospf area area-id] hierarchy level1.

NEW QUESTION # 40
Exhibit.

Referring to the exhib.t, what must be changed to establish a Level 1 adjacency between routers R1 and R2?

• A. Change the level l disable parameter under the R1 protocols isis interface lo0.0 hierarchy to the level 2 disable parameter.
• B. Remove the level i disable parameter under the R2 protocols isis interface loo . 0 configuration hierarchy.
• C. Change the level 1 disable parameter under the R2 protocols isis interface ge-1/2/3 .0 hierarchy to the level 2 disable parameter
• D. Add IP addresses to the interface ge-l/2/3 unit 0 family iso hierarchy on both R1 and R2.

Answer: B

Explanation:
Explanation
IS-IS routers can form Level 1 or Level 2 adjacencies depending on their configuration and network topology.
Level 1 routers are intra-area routers that share the same area address with their neighbors. Level 2 routers are inter-area routers that can connect different areas. Level 1-2 routers are both intra-area and inter-area routers that can form adjacencies with any other router.
In the exhibit, R1 and R2 are in different areas (49.0001 and 49.0002), so they cannot form a Level 1 adjacency. However, they can form a Level 2 adjacency if they are both configured as Level 1-2 routers. R1 is already configured as a Level 1-2 router, but R2 is configured as a Level 1 router only, because of the level 1 disable command under the lo0.0 interface. This command disables Level 2 routing on the loopback interface, which is used as the router ID for IS-IS.
Therefore, to establish a Level 1 adjacency between R1 and R2, the level 1 disable command under the R2 protocols isis interface lo0.0 hierarchy must be removed. This will enable Level 2 routing on R2 and allow it to form a Level 2 adjacency with R1.

NEW QUESTION # 41
Exhibit

The environment is using BGP All devices are in the same AS with reachability redundancy Referring to the exhibit, which statement is correct?

• A. RR2 is in an OpenConfirm State until RR1 becomes unreachable.
• B. Client1 is peered to Client2 and Client3.
• C. Peering is dynamically discovered between all devices.
• D. RR1 is peered to Client2 and RR2

Answer: D

Explanation:
Explanation
BGP route reflectors are BGP routers that are allowed to ignore the IBGP loop avoidance rule and advertise IBGP learned routes to other IBGP peers under specific conditions. BGP route reflectors can reduce the number of IBGP sessions and updates in a network by eliminating the need for a full mesh of IBGP peers.
BGP route reflectors can have three types of peerings:
* EBGP neighbor: A BGP router that belongs to a different autonomous system (AS) than the route reflector.
* IBGP client neighbor: An IBGP router that receives reflected routes from the route reflector. A client does not need to peer with other clients or non-clients.
* IBGP non-client neighbor: An IBGP router that does not receive reflected routes from the route reflector. A non-client needs to peer with other non-clients and the route reflector.
In the exhibit, we can see that RR1 and RR2 are route reflectors in the same AS with reachability redundancy.
They have two types of peerings: EBGP neighbors (R1 and R4) and IBGP client neighbors (Client1, Client2, and Client3). RR1 and RR2 are also peered with each other as IBGP non-client neighbors.

NEW QUESTION # 42
Exhibit

Referring to the exhibit, which two statements are true? (Choose two.)

• A. The devices advertising this route into EVPN are 10 0 2 12 and 10.0.2.22.
• B. This is an EVPN Type-2 route.
• C. This route is learned through EBGP
• D. The device advertising this route into EVPN is 192.168.101.5.

Answer: B,D

Explanation:
Explanation
This is an EVPN Type-2 route, also called a MAC/IP advertisement route, that is used to advertise host IP and MAC address information to other VTEPs in an EVPN network. The route type field in the EVPN NLRI has a value of 2, indicating a Type-2 route. The device advertising this route into EVPN is 192.168.101.5, which is the IP address of the VTEP that learned the host information from the local CE device. This IP address is carried in the MPLS label field of the route as part of the VXLAN encapsulation.

NEW QUESTION # 43
Which origin code is preferred by BGP?

• A. Internal
• B. External
• C. Null
• D. Incomplete

Answer: D

Explanation:
Explanation
BGP uses several attributes to select the best path for a destination prefix. One of these attributes is origin, which indicates how BGP learned about a route. The origin attribute can have one of three values: IGP, EGP, or Incomplete. IGP means that the route was originated by a network or aggregate statement within BGP or by redistribution from an IGP into BGP. EGP means that the route was learned from an external BGP peer (this value is obsolete since BGP version 4). Incomplete means that the route was learned by some other means, such as redistribution from a static route into BGP. BGP prefers routes with lower origin values, so Incomplete is preferred over EGP, which is preferred over IGP.

NEW QUESTION # 44
By default, which statement is correct about OSPF summary LSAs?

• A. The metric associated with a summary route will be equal to the lowest metric associated with an individual contributing route
• B. The area-range command must be installed on all routers.
• C. Type 3 LSAs are advertised for routes in Type 1 LSAs.
• D. All Type 2 and Type 7 LSAs will be summanzed into a single Type 5 LSA

Answer: C

Explanation:
Explanation
OSPF uses different types of LSAs to describe different aspects of the network topology. Type 1 LSAs are also known as router LSAs, and they describe the links and interfaces of a router within an area. Type 3 LSAs are also known as summary LSAs, and they describe routes to networks outside an area but within the same autonomous system (AS). By default, OSPF will summarize routes from Type 1 LSAs into Type 3 LSAs when advertising them across area boundaries .

NEW QUESTION # 45
Which two statements are correct about the customer interface in an LDP-signaled pseudowire? (Choose two)

• A. When the encapsulation is ethemet-ccc, tagged and untagged frames are both accepted in the data plane.
• B. When the encapsulation is vLan-ccc or extended-vlan-ccc, the configured VLAN tag is included in the control plane LDP advertisement
• C. When the encapsulation is vlan-ccc or extended-vlan-ccc, the configured VLAN tag is not included in the control plane LDP advertisement
• D. When the encapsulation is ethernet-ccc, only frames without a VLAN tag are accepted in the data plane

Answer: A,B

Explanation:
Explanation
The customer interface in an LDP-signaled pseudowire is the interface on the PE router that connects to the CE device. An LDP-signaled pseudowire is a type of Layer 2 circuit that uses LDP to establish a point-to-point connection between two PE routers over an MPLS network. The customer interface can have different encapsulation types depending on the type of traffic that is carried over the pseudowire. The encapsulation types are ethernet-ccc, vlan-ccc, extended-vlan-ccc, atm-ccc, frame-relay-ccc, ppp-ccc, cisco-hdlc-ccc, and tcc-ccc. Depending on the encapsulation type, the customer interface can accept or reject tagged or untagged frames in the data plane, and include or exclude VLAN tags in the control plane LDP advertisement. The following table summarizes the behavior of different encapsulation types:

NEW QUESTION # 46
Which two statements are correct about a sham link? (Choose two.)

• A. The PEs exchange Type 3 OSPF LSAs instead of Type 1 OSPF LSAs for the L3VPN routes.
• B. It creates an OSPF multihop neighborship between two PE routers.
• C. It creates a BGP multihop neighborship between two PE routers.
• D. The PEs exchange Type 1 OSPF LSAs instead of Type 3 OSPF LSAs for the L3VPN routes

Answer: B,D

Explanation:
Explanation
A sham link is a logical link between two PE routers that belong to the same OSPF area but are connected through an L3VPN. A sham link makes the PE routers appear as if they are directly connected, and prevents OSPF from preferring an intra-area back door link over the VPN backbone. A sham link creates an OSPF multihop neighborship between the PE routers using TCP port 646. The PEs exchange Type 1 OSPF LSAs instead of Type 3 OSPF LSAs for the L3VPN routes, which allows OSPF to use the correct metric for route selection1.

NEW QUESTION # 47
Exhibit

You are attempting to summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500. You implement the export policy shown in the exhibit and all routes from the routing table stop being advertised.
In this scenario, which two steps would you take to summarize the route in BGP? (Choose two.)

• A. Add the set routing-options static route 203.0.113.123/25 discard command.
• B. Replace exact in the export policy with orlonger.
• C. Add the set protocols bgp family inet unicast add-path command to allow additional routes to the RIB tables. -
• D. Remove the from protocol bgp command from the export policy.

Answer: A,B

Explanation:
Explanation
To summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500, you need to do the following:
* Add the set routing-options static route 203.0.113.128/25 discard command. This creates a static route for the summary prefix and discards any traffic destined to it. This is necessary because BGP can only advertise routes that are present in the routing table.
* Replace exact in the export policy with orlonger. This allows R8 to match and advertise any route that is equal or more specific than the summary prefix. The exact term only matches routes that are exactly equal to the summary prefix, which is not present in the routing table.

NEW QUESTION # 48
When using OSPFv3 for an IPv4 environment, which statement is correct?

• A. OSPFv3 only supports IPv4.
• B. OSPFv3 supports both IPv6 and IPv4, but not in the same routing instance.
• C. OSPFv3 is not backward compatible with IPv4
• D. OSPFv3 supports IPv4 only on interfaces with family inet6 defined

Answer: C

Explanation:
Explanation
OSPFv3 is an extension of OSPFv2 that supports IPv6 routing and addressing. OSPFv3 is not backward compatible with IPv4 because it uses a different packet format and a different link-state advertisement (LSA) structure than OSPFv2. OSPFv3 also uses IPv6 link-local addresses as router IDs and neighbor addresses, instead of IPv4 addresses. To use OSPFv3 for an IPv4 environment, you need to enable the IPv4 unicast address family under [edit protocols ospf3] hierarchy level and configure IPv4 addresses on the interfaces.

NEW QUESTION # 49
Exhibit

Referring to the exhibit, PE-1 and PE-2 are getting route updates for VPN-B when neither of them service that VPN Which two actions would optimize this process? (Choose two.)

• A. Configure the family route-target statement on the RR
• B. Configure the resolution rib bgp.l3vpn.O resolution-ribs inet. 0 Statement on the RR
• C. Configure the resolution rib bgp . 13vpn . 0 resolution-ribs inet. 0 Statement on the PEs.
• D. Configure the family route-target statement on the PEs.

Answer: A,B

Explanation:
Explanation
BGP route target filtering is a technique that reduces the number of routers that receive VPN routes and route updates, helping to limit the amount of overhead associated with running a VPN. BGP route target filtering is based on the exchange of the route-target address family, which contains information about the VPN membership of each PE device. Based on this information, a PE device can decide whether to accept or reject VPN routes from another PE device.
BGP route target filtering can be configured on PE devices or on route reflectors (RRs). Configuring BGP route target filtering on RRs is more efficient and scalable, as it reduces the number of BGP sessions and updates between PE devices. To configure BGP route target filtering on RRs, the following steps are required:
* Configure the family route-target statement under the BGP group or neighbor configuration on the RRs.
This enables the exchange of the route-target address family between the RRs and their clients (PE devices).
* Configure the resolution rib bgp.l3vpn.0 resolution-ribs inet.0 statement under the routing-options configuration on the RRs. This enables the RRs to resolve next hops for VPN routes using the inet.0 routing table.
* Configure an export policy for BGP route target filtering under the routing-options configuration on the RRs. This policy controls which route targets are advertised to each PE device based on their VPN membership.

NEW QUESTION # 50
You are configuring a BGP signaled Layer 2 VPN across your MPLS enabled core network. In this scenario, which statement is correct?

• A. You must use the same route-distinguiaher value on both PE devices.
• B. This type of VPN requires the support of the inet-vpn NLRI on all core BGP devices
• C. This type of VPN only supports Ethernet interfaces when connecting to CE devices.
• D. You must assign a unique site number to each attached site's configuration.

Answer: B

Explanation:
Explanation
BGP signaled Layer 2 VPN is a type of VPN that uses BGP to distribute VPN labels and information for Layer 2 connectivity between sites over an MPLS network. BGP signaled Layer 2 VPN requires the support of the l2vpn NLRI on all core BGP devices . The l2vpn NLRI is a new address family that carries Layer 2 VPN information such as the VPN identifier, the attachment circuit identifier, and the route distinguisher. The l2vpn NLRI is used for both auto-discovery and signaling of Layer 2 VPNs . In this scenario, we are configuring a BGP signaled Layer 2 VPN across an MPLS enabled core network. Therefore, we need to ensure that all core BGP devices support the l2vpn NLRI.
References: 1:
https://www.juniper.net/documentation/us/en/software/junos/vpn-l2/topics/concept/vpn-layer-2-overview.html
2:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_l2_vpns/configuration/xe-16/mp-l2-vpns-xe-16-book/vpl

NEW QUESTION # 51
Exhibit

Based on the configuration contents shown in the exhibit, which statement is true?

• A. Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10
• B. Joins for group 224.7.7.7 are always rejected, regardless of the group count.
• C. Joins for group 224.7.7.7 are accepted if the group count is less than 25
• D. Joins for any group are accepted if the group count value is less than 25.

Answer: C

Explanation:
Explanation
BGP policy framework is a set of tools that allows you to control the flow of routing information and apply routing policies based on various criteria. BGP policy framework consists of several components, such as route maps, prefix lists, community lists, AS path lists, and route filters. Route maps are used to define routing policies by matching certain conditions and applying certain actions. Prefix lists are used to filter routes based on their prefixes. Community lists are used to filter routes based on their community attributes. AS path lists are used to filter routes based on their AS path attributes. Route filters are used to filter routes based on their prefix length or range3. In this question, we have a route map named ISP-A that has two clauses: clause 10 and clause 20. Clause 10 matches any route with a prefix length between 8 and 24 bits and sets the local preference to 200. Clause 20 matches any route with a prefix of 224.7.7.7/32 and rejects it. The route map is applied inbound on the BGP neighborship with ISP-A. Based on this configuration, the correct statement is that joins for group 224.7.7.7 are always rejected, regardless of the group count. This is because clause 20 explicitly denies any route with a prefix of 224.7.7.7/32, which corresponds to the multicast group 224.7.7.7.

NEW QUESTION # 52
Exhibit

You are asked to exchange routes between R1 and R4 as shown in the exhibit. These two routers use the same AS number Which two steps will accomplish this task? (Choose two.)

• A. Configure the BGP group with the as-override parameter on R1 and R4
• B. Configure the BGP group with the advertise-peer-as parameter on R2 and R3.
• C. Configure the BGP group with the advertise-peer-as parameter on R1 and R4.
• D. Configure the BGP group with the as-override parameter on R2 and R3

Answer: C,D

Explanation:
Explanation
The advertise-peer-as parameter allows a router to advertise its peer's AS number as part of the AS path attribute when sending BGP updates to other peers. This parameter is useful when two routers in the same AS need to exchange routes through another AS, such as in the case of R1 and R4. By configuring this parameter on R1 and R4, they can advertise each other's AS number to R2 and R3, respectively.
The as-override parameter allows a router to replace the AS number of its peer with its own AS number when receiving BGP updates from that peer. This parameter is useful when two routers in different ASes need to exchange routes through another AS that has the same AS number as one of them, such as in the case of R2 and R3. By configuring this parameter on R2 and R3, they can override the AS number of R1 and R4 with their own AS number when sending BGP updates to each other.

NEW QUESTION # 53
You are a network architect for a service provider and want to offer Layer 2 services to your customers You want to use EVPN for Layer 2 services in your existing MPLS network.
Which two statements are correct in this scenario? (Choose two.)

• A. EVPN uses Type 2 routes to advertise MAC address and IP address pairs learned using ARP snooping
• B. EVPN uses Type 3 routes to join a multicast tree to flood traffic.
• C. VXLAN must be configured on all PE routers.
• D. Segment routing must be configured on all PE routers.

Answer: A,B

Explanation:
Explanation
EVPN is a technology that connects L2 network segments separated by an L3 network using a virtual Layer 2 network overlay over the Layer 3 network. EVPN uses BGP as its control protocol to exchange different types of routes for different purposes. Type 2 routes are used to advertise MAC address and IP address pairs learned using ARP snooping from the local CE devices. Type 3 routes are used to join a multicast tree to flood traffic such as broadcast, unknown unicast, and multicast (BUM) traffic.

NEW QUESTION # 54
Exhibit

R1 and R8 are not receiving each other's routes
Referring to the exhibit, what are three configuration commands that would solve this problem? (Choose three.)

• A. Configure as-override on advertisement from AS 64500 toward AS 64512.
• B. Configure loops and advertise-peer-as on routers in AS 64497 and AS 64450.
• C. Configure loops on routers in AS 65412 and advertise-peer-as on routers in AS 64498.
• D. Configure remove-private on advertisements from AS 64500 toward AS 64499
• E. Configure remove-private on advertisements from AS 64497 toward AS 64498

Answer: C,D,E

Explanation:
Explanation
The problem in this scenario is that R1 and R8 are not receiving each other's routes because of private AS numbers in the AS path. Private AS numbers are not globally unique and are not advertised to external BGP peers. To solve this problem, you need to do the following:
* Configure loops on routers in AS 65412 and advertise-peer-as on routers in AS 64498. This allows R5 and R6 to advertise their own AS number (65412) instead of their peer's AS number (64498) when sending updates to R7 and R8. This prevents a loop detection issue that would cause R7 and R8 to reject the routes from R5 and R62.
* Configure remove-private on advertisements from AS 64497 toward AS 64498 and from AS 64500 toward AS 64499. This removes any private AS numbers from the AS path before sending updates to external BGP peers. This allows R2 and R3 to receive the routes from R1 and R4, respectively3.

NEW QUESTION # 55
When building an interprovider VPN, you notice on the PE router that you have hidden routes which are received from your BGP peer with family inet labeled-unica3t configured.
Which parameter must you configure to solve this problem?

• A. Under the family inet labeled-unicast hierarchy, add the resolve-vpn parameter.
• B. Under the protocols ospf hierarchy, add the traffic-engineering parameter.
• C. Under the protocols mpls hierarchy, add the traffic-engineering parameter
• D. Under the family inet labeled-unicast hierarchy, add the explicit null parameter.

Answer: A

Explanation:
Explanation
The resolve-vpn parameter is a BGP option that allows a router to resolve labeled VPN-IPv4 routes using unlabeled IPv4 routes received from another BGP peer with family inet labeled-unicast configured. This option enables interprovider VPNs without requiring MPLS labels between ASBRs or using VRF tables on ASBRs. In this scenario, you need to configure the resolve-vpn parameter under [edit protocols bgp group external family inet labeled-unicast] hierarchy level on both ASBRs.

NEW QUESTION # 56
Exhibit

Referring to the exhibit, a working L3VPN exists that connects VPN-A sites CoS is configured correctly to match on the MPLS EXP bits of the LSP, but when traffic is sent from Site-1 to Site-2, PE-2 is not classifying the traffic correctly What should you do to solve the problem?

• A. Set a static CoS value for the PE-1_to_PE-2 LSP
• B. Configure VPN prefix mapping for the PE-1_to_PE-2 LSP
• C. Configure the explicit-null statement on PE-2
• D. Configure the explicit-null statement on PE-1.

Answer: D

Explanation:
Explanation
The explicit-null statement enables the PE router to send an MPLS label with a value of 0 (explicit null) instead of an IP header for packets destined to the VPN customer sites. This allows the penultimate hop router (the router before the egress PE router) to preserve the EXP bits of the MPLS label and pass them to the egress PE router. The egress PE router can then use these EXP bits to classify the traffic according to the CoS policy2
. In this example, PE-1 should configure the explicit-null statement under [edit protocols mpls label-switched-path PE-1_to_PE-2] hierarchy level.

NEW QUESTION # 57
Exhibit

CE-1 and CE-2 are part of a VPLS called Customer1 No connectivity exists between CE-1 and CE-2. In the process of troubleshooting, you notice PE-1 is not learning any routes for this VPLS from PE-2, and PE-2 is not learning any routes for this VPLS from PE-1.

• A. The no-tunnel-services statement should be deleted on both PEs.
• B. The route target must match on PE-1 and PE-2.
• C. The instance type should be changed to I2vpn.
• D. The route distinguisher must match on PE-1 and PE-2.

Answer: B

Explanation:
Explanation
VPLS is a technology that provides Layer 2 VPN services over an MPLS network. VPLS uses BGP as its control protocol to exchange VPN membership information between PE routers. The route target is a BGP extended community attribute that identifies which VPN a route belongs to. The route target must match on PE routers that participate in the same VPLS instance, otherwise they will not accept or advertise routes for that VPLS.

NEW QUESTION # 58
Exhibit

Referring to the exhibit, which three statements are correct about route 10 0 0.0/16 when using the default BGP advertisement rules'? (Choose three.)

• A. R1 will prepend AS 65531 when advertising 10 0.0 0/16 to R2.
• B. R2 will advertise 10.0.0.0/16 to R3 with 192.168.1 1 as the next hop
• C. R1 will advertise 10.0.0.0/16 to R2 with 192 168 1 1 as the next hop.
• D. R2 will advertise 10.0.0.0/16 to R4 with 172.16.1.1 as the next hop
• E. R4 will advertise 10 0.0 0/16 to R6 with 172.16 1 1 as the next hop

Answer: C,D,E

Explanation:
Explanation
The problem in this scenario is that R1 and R8 are not receiving each other's routes because of private AS numbers in the AS path. Private AS numbers are not globally unique and are not advertised to external BGP peers. To solve this problem, you need to do the following:
* Configure loops on routers in AS 65412 and advertise-peer-as on routers in AS 64498. This allows R5 and R6 to advertise their own AS number (65412) instead of their peer's AS number (64498) when sending updates to R7 and R8. This prevents a loop detection issue that would cause R7 and R8 to reject the routes from R5 and R62
* Configure remove-private on advertisements from AS 64497 toward AS 64498 and from AS 64500 toward AS 64499. This removes any private AS numbers from the AS path before sending updates to external BGP peers. This allows R2 and R3 to receive the routes from R1 and R4, respectively3.

NEW QUESTION # 59
Which two statements are correct about reflecting inet-vpn unicast prefixes in BGP route reflection? (Choose two.)

• A. Route reflectors do not change any existing BGP attributes by default when advertising routes.
• B. A BGP peer does not require any configuration changes to become a route reflector client.
• C. Route reflectors add their cluster ID to the AS path when readvertising client routes.
• D. Clients add their originator ID when advertising routes to their route reflector

Answer: A,B

Explanation:
Explanation
Route reflection is a BGP feature that allows a router to reflect routes learned from one IBGP peer to another IBGP peer, without requiring a full-mesh IBGP topology. Route reflectors do not change any existing BGP attributes by default when advertising routes, unless explicitly configured to do so. A BGP peer does not require any configuration changes to become a route reflector client, only the route reflector needs to be configured with the client parameter under [edit protocols bgp group group-name neighbor neighbor-address] hierarchy level.

NEW QUESTION # 60
Exhibit

Which two statements about the configuration shown in the exhibit are correct? (Choose two.)

• A. This VPN connects customer sites that use different AS numbers.
• B. A Layer 3 VPN is configured.
• C. This VPN connects customer sites that use the same AS number
• D. A Layer 2 VPN is configured.

Answer: A,B

Explanation:
Explanation
The configuration shown in the exhibit is for a Layer 3 VPN that connects customer sites that use different AS numbers. A Layer 3 VPN is a type of VPN that uses MPLS labels to forward packets across a provider network and BGP to exchange routing information between PE routers and CE routers. A Layer 3 VPN allows customers to use different routing protocols and AS numbers at their sites, as long as they can peer with BGP at the PE-CE interface. In this example, CE-1 is using AS 65530 and CE-2 is using AS 65531, but they can still communicate through the VPN because they have BGP sessions with PE-1 and PE-2, respectively.

NEW QUESTION # 61
......

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