JN0-662 Exam - Service Provider Routing and Switching - Professional (JNCIP-SP)

NEW QUESTION 1
Which message type initiates the BGP session?

• A. update
• B. open
• C. keepalive
• D. notification

Answer: B

NEW QUESTION 2
How does Juniper Networks use selective BGP route damping to help stabilize the network?

• A. The damping decay half-life holds down peer links for a defined measure of time to prevent route table reconvergence.
• B. The damping max-suppress timer is set to the lowest possible value by default.
• C. The figure-of-merit value measures route stability by advertisement and withdrawal.
• D. Aggressive IGP hold timers prevent the routes from entering and exiting the BGP route selection process.

Answer: C

NEW QUESTION 3
With which two elements is a VRF table populated? (Choose two.)

• A. Routes received from remotely connected CE sites.
• B. Routes received from directly connected CE sites.
• C. Routes received from P routers with acceptable MP-BGP attributes.
• D. Routes received from PE routers with acceptable MP-BGP attributes.

Answer: BD

Explanation:
Each VRF table is populated from routes received from directly connected CE sites associated with that VRF routing instance and from routes received from other PE routers that passed BGP community filtering and are in the same VPN.

NEW QUESTION 4
Click the Exhibit button.

You administer AS 65000, and have deployed a route reflector (RR1) in your network as shown in the exhibit. The traffic between AS 65001 and AS 65002 is going through the route reflector, even though it is not the best path.
What will solve this problem?

• A. Change the LOCAL_PREF so that it uses the preferred path.
• B. Remove the nhs policy.
• C. Change the originator to be the preferred path.
• D. Change the IGP metric so it is lower on the preferred path.

Answer: B

NEW QUESTION 5
Click the exhibit button.

What would be the expected outcome from the configuration shown in the exhibit?

• A. The VPLS instance would use a control-word instead of a tunnel-services interface, or no-tunnel-services parameter.
• B. The VPLS instance would default to using no-tunnel-services because a tunnel-services interface was not specified.
• C. The VPLS instance would cycle through all virtual tunnel interfaces on the router to find one to use.
• D. The VPLS instance would cycle through all physical interfaces configured on the router to find one to use.

Answer: C

NEW QUESTION 6
Click the Exhibit button.

You have configured the OSPF network as shown in the exhibit. However, R4 and R5 do not have connectivity to prefixes outside of Area 10. In this scenario, what will solve this problem?

• A. Configure default-metric on R2 and R3 for Area 10.
• B. Configure no-summaries on R4 for Area 10.
• C. Create a routing policy on R2 and R3 to redistribute Area 0 routes.
• D. Configure the R2-R4 and R3-R4 links as interface-type p2mp.

Answer: A

NEW QUESTION 7
Click the Exhibit button.

Referring to the exhibit, which statement is correct?

• A. IP address 192.168.16.5 is on a directly connected interface.
• B. Four routes have been leaked from the Level 2 area to the Level 1 area.
• C. The path to IP address 192.168.16.6 is currently unavailable.
• D. R1 has two Level 2 adjacencies and one Level 1 adjacency to other routers.

Answer: A

NEW QUESTION 8
Click the Exhibit button.



Routers R1, R2, and R3 have set protocols isis interface all configured and no other set protocols isis
configuration.
Referring to the exhibit, which two statements are true? (Choose two.)

• A. The R2-R3 link will form a Level 1 and Level 2 adjacency.
• B. The R1-to-R2 link will only form a Level 2 adjacency.
• C. The R1-to-R2 link will form a Level 1 and Level 2 adjacency.
• D. The R2-R3 link will only form a Level 1 adjacency.

Answer: AC

NEW QUESTION 9
According to Juniper Networks, what are three methods of scaling Layer 2 VPNs? (Choose three.)

• A. inbound route filters
• B. route reflection
• C. outbound route filters
• D. filter-based forwarding
• E. BGP route refresh

Answer: ABC

NEW QUESTION 10
You are configuring a BGP-signaled Layer 2 VPN service. Which two statements are true in this scenario? (Choose two.)

• A. RSVP-signaled LSPs are required.
• B. The family 12vpn auto-discovery-only parameter is required for BGP sessions.
• C. The family 12vpn signaling parameter is required for BGP sessions.
• D. RSVP-signaled or LDP-signaled LSPs may be used.

Answer: CD

NEW QUESTION 11
Which transport mechanism is required for Layer 3 VPNs?

• A. GRE
• B. VXLAN
• C. IPsec
• D. MPLS

Answer: D

NEW QUESTION 12
The network team will be performing maintenance on R3. The maintenance window requires a reboot of router R3. You want to gracefully move traffic away from R3 until after the reboot. In this scenario, how would you solve this problem?

• A. Configure the set protocols isis interface all level 1 hold-time 300 parameter, then reboot the router.
• B. Configure the set protocols isis overload parameter, then commit the configuration.
• C. Configure the set protocols isis spf-options delay 300 parameter, then reboot the router.
• D. Configure the set protocols isis interface all level 1 hello-interval 300 parameter, then reboot the router.

Answer: B

NEW QUESTION 13
Click the Exhibit button.

Referring to the exhibit, when building an interprovider VPN Option C between AS65100 and AS65200, which two parameters must be configured on the EBGP connection between PE1 and PE2? (Choose two.)

• A. family inet-vpn unicast
• B. multihop
• C. family inet labeled-unicast
• D. multipath

Answer: AB

NEW QUESTION 14
Referring to the ABR configuration shown in the exhibit, which two statements are correct? (Choose two.)

• A. The ABR advertises a default route to the NSSA with a metric of 10.
• B. To reach the ABR, routers within the NSSA add 10 to their calculated path cost.
• C. The ABR advertises NSSA routes to the backbone area with a metric of 10.
• D. To reach the ABR, routers within the NSSA use the metric 10 as their path cost.

Answer: A

Explanation:
You must explicitly configure the ABR to generate a default route when attached to a stub or
not-so-stubby-area (NSSA). To inject a default route with a specified metric value into the area, you must configure the default-metric option and specify a metric value.
References:

NEW QUESTION 15
After committing the following configuration change on your MPLS VPN PE router, all MPLS VPN destinations become unreachable.

Which additional configuration solves the issue?

• A. A
• B. B
• C. C
• D. D

Answer: C

NEW QUESTION 16
Click the Exhibit button.

Referring to the exhibit, the Layer 2 VPN between PE-1 and PE-2 is not functioning properly. What must you do to solve the problem?

• A. Set the remote site identifier to 3.
• B. Set the local site identifier to 3.
• C. Set the local site identifier to 1.
• D. Set the remote site identifier to 5.

Answer: B

NEW QUESTION 17
In a carrier-of-carrier VPN model, which type of network layer reachability information is used for the MP-BGP signaling between CE and PE routers?

• A. flow
• B. labeled-unicast
• C. unicast
• D. inet-vpn

Answer: D

Explanation:
In a Carrier-of-Carrier VPN environment, specify the inet-vpn address family and unicast traffic type to enable BGP to carry IPv4 network layer reachability information (NLRI) for VPN routes.
References:
http://www.juniper.net/documentation/en_US/junos15.1/topics/example/mpls-vpn-option2-configuration.html

NEW QUESTION 18
How is a BGP Layer 2 VPN prefix formed by a PE?

• A. by combining the route distinguisher and vrf-target, in that order
• B. by combining the route distinguisher, remote site identifier, and site identifier, in that order
• C. by combining the route distinguisher, site identifier, and remote site identifier, in that order
• D. by combining the vrf-target and route distinguisher, in that order

Answer: C

NEW QUESTION 19
Click the Exhibit button.

You have the multi-area OSPF network design shown in the exhibit. Which path will traffic from R1 transit to reach R4 if the R2-R4 link fails?

• A. R1-R2-R5-R3-R4
• B. R1-R2-R3-R5-R4
• C. R1-R2-R3-R4
• D. R1-R2-R5-R4

Answer: D

NEW QUESTION 20
Which statement is correct regarding BGP route reflectors?

• A. The route reflectors must have a private AS number.
• B. The route reflectors must have an EBGP peering session between each other.
• C. The route reflectors must have a cluster ID configured.
• D. The route reflectors must have a different AS number than the clients.

Answer: C

NEW QUESTION 21
Click the Exhibit button.

The route shown in the exhibit is being advertised to the EBGP peer and displays a next hop of itself. However, you do not have a next-hop self policy configured. What would cause this behavior?

• A. The IBGP peers have a next-hop self policy, which the router is exporting to the EBGP neighbors.
• B. The set protocols bgp path-selection as-path-ignore is not set and must be added so the next-hop attribute will propagate from the peer.
• C. The set protocols bgp accept-remote-next hop is not set and must be added so the next-hop attribute will propagate from the peer.
• D. The next-hop attribute was modified by default when it was advertised to the EBGP peer, without applying a policy.

Answer: D

NEW QUESTION 22
Which authentication strategy authenticates IS-IS hello PDUs only?

• A. interface authentication
• B. area authentication
• C. domain authentication
• D. level authentication

Answer: D

NEW QUESTION 23
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