JN0-661 Exam Questions

Which statements are true about NG MVPNs? (Choose two.)

A service provider wants to start using all of their LSPs for internal traffic and not just their MPLS VPNs. Any solution must ensure that existing VPNs and routing policies will c...

Click the Exhibit button. user@router# run show route 2.0.0.0/8 inet.0: 101 destinations, 198 routes (100 active, 0 holddown, 1 hidden) + = Active Route, - = Last Active, * = Both...

Click the Exhibit button. [edit] user@PE-1# show protocols rsvp { interface all; } mpls { label-switched-path p1 { from 1.1.1.1; to 4.4.4.4; no-cspf; } interface all; } bgp { group...

You need to ensure that your high-priority traffic uses the best-possible route while your best- effort traffic uses a lower preference route. You want to use CoS-based forwarding...

Click the Exhibit button. ISP 1 wants to configure an IPv6 L3VPN over its IPv4-only MPLS network for Customer-A. PE1 has been configured as shown in the exhibit; however, IPv6 rout...

Click the Exhibit button. Which configuration supports interprovider Layer 3 VPN option B on ASBR1 as shown in the exhibit.

Click the Exhibit button. RR: protocols { bgp { group ebgd { type external; peer-as 100; neighbor 172.16.1.1 { description R1; } } group ibgp { type internal; neighbor 172.16.1.2 {...

Your company has multiple upstream BGP connections to the Internet ISP-A, ISP-B, and ISP-C. You want to ensure that all traffic coming into your network uses ISP-A. How would you a...

Click the Exhibit button. You implemented the configuration shown in the exhibit on your route reflector device. However, you notice traffic is transiting the route reflector rathe...

Which two statements are true about IS-IS adjacency formation? (Choose two.)

Which address range has been specifically reserved for use with SSM traffic?

Click the Exhibit button. user@R1> show ospf interface detail Interface State Area DR ID BDR ID Nbcs xe-0/0/1.0 BDR 0.0.0.0 2.169.37.12 11.244.245.215 1 Type LAN, address 192.161.2...

Which OSPFv3 router ID is valid?

You are working with a new MPLS network that is using the default EXP classifier and default schedules. A small amount of traffic is being placed in the assured forwarding class. N...

You are asked to design a Layer 2 VPN service between service provider networks that needs Ethernet transport capabilities. The VPN should support two or three endpoints. Which Lay...

Click the Exhibit button. Referring to the exhibit, what are three operations performed by the service provider's PE routers? (Choose three.)

Click the Exhibit button. Referring to the exhibit, You have a Layer 3 VPN connecting Site 1, Site 2, and Site 3. Site 1 and Site 3 have a backdoor IBGP connection. You must meet t...

Click the Exhibit button. You have an OSPF area configured as shown in the exhibit. Which two statements are true? (Choose two.) [edit protocols ospf area 0.0.0.2] user@router# sho...

Click the Exhibit button. The Client 1 router forwards a route learned from its EBGP peer to the route reflector RR1. The route reflector forwards the route to the Client 2 router....

Click the Exhibit button. Which configuration parameter would create a routing table as shown in the exhibit?

Click the Exhibit button. You are the administrator for AS 1111 and you want to inform the neighboring AS to use router A2 as the ingress path into your local AS. Referring to the...

Click the Exhibit button. Your network has multiple LSPs between Router A and Router B, as shown in the exhibit. You add a new LSP between these routers with the following paramete...

Referring to the applied drop profile shown in the exhibit, if the buffer is 30 percent full, what is the probability of traffic being dropped?

You are asked to provision a BGP-signaled Layer 2 VPN for a new customer. What information is required for the VPN routing instance that is connected to the CE device? (Choose thre...

Referring to the exhibit, You have a Layer 3 VPN connecting Site 1, Site 2, and Site 3. Site 1 and Site 3 have a backdoor IBGP connection. You must meet these requirements: 1. Ensu...

Referring to the exhibit, you must ensure that all traffic sourced from C1 and destined to C2 is associated with the expedited forwarding class. Also, you must ensure that all othe...

Refer to the exhibit.Your network engineer reported that they lost BGP connectivity to the neighbor 192.163.6.4 one hour ago, for five to ten minutes. What are two ways to determin...

How would you copy the BGP prefix 192.168.42.0/24 from VRF-A.inet.0 to VRF-B.inet.0?

Referring to the exhibit, what are three operations performed by the service provider's PE routers? (Choose three.)

You have established an MSDP peering between multicast domains for your AS and a neighboring AS. You are concerned about unnecessary flooding or looping of source active messages b...

You have configured PIM dense mode on your network. One of your PIM-enabled routers is not in the path of the source-based tree between the source and the receivers, and has no nee...

What are two requirements of Layer 2 VPN BGP route reflectors? (Choose two.)

You have an OSPF area configured as shown in the exhibit. [edit protocols ospf area 0.0.0.2] user@router# show area-range 0.0.0.0/1 restrict; interface ge-0/0/1.0; Which two statem...

You want to ensure that your all-Junos MPLS core network does not decrease the TTL when using ping and traceroute from IP endpoints. Which two configuration parameters satisfy this...

You have configured an MPLS LSP that includes defined hops. For this path, you want the MPLS label to be popped at the egress node. Which configuration statement meets this require...

You want to copy only OSPF prefixes from site.inet.0 to company.inet.0. What is the proper configuration syntax you must use to accomplish this task?

Referring to the exhibit, you must advertise the 200.100.0.0/16 routes from Site 2 to Site 1, but R3 is not currently advertising any BGP routes to R2. Why is this happening?

Referring to the exhibit, routers R1 through R5 exist in a fully-meshed IBGP group. You want the routes received through EBGP on R1 to be advertised to the EBGP peer connected to R...

Refer to the exhibit. In the exhibit, R2 is receiving the 10.100.100.0/24 prefix from R1 and R4. R1 uses the 1.1.1.1 router ID and R4 uses the 4.4.4.4 router ID to advertise the pr...

In the exhibit, an OSPF virtual link is established between R2 and R3. However, R4 cannot reach any external destinations. What must you do you allow R4 to reach external destinati...

Which two statements regarding OSPFv2 or OSPFv3 authentication are correct? (Choose two.)

You have a Layer 3 VPN established between Site 1 and Site 2. You are asked to limit the number of OSPF routes that the PE devices will accept from the CEs. Which statement is corr...

You administer the network shown in the exhibit. Routers R1, R3, and R4 are sending the same prefix to R2. All routers are using default local-preference values. You must make the...

You have an established RSVP LSP from R1 to R4. As shown in the exhibit, you experience a link failure between R2 and R3. Which two statements are correct? (Choose two.)

You are asked to deploy VPLS in your network as a new service for several customers and must identify the configuration and provisioning requirements. Which two statements are corr...

What must you do to use the Layer 2 interworking interface to connect a BGP Layer 2 VPN with an LDP Layer 2 circuit? (Choose two.)

Referring to the exhibit, you have recently configured a Layer 3 VPN between Site 1, Site 2, and Site 3. The CE2 device has all routes from Site 1 and Site 3. The CE3 device has al...

In the exhibit, R2 is receiving external routing information for the 192.168.16.0/24 prefix and is redistributing it into IS-IS. R1 has a policy that leaks the 192.168.16.0/24 rout...

Which configuration parameter would be used by a commit script to use custom syntax and simplify the configuration?