JN0-661 Exam Questions

You are deploying OSPFv2 and OSPFv3 in your network. You must enable authentication to secure OSPF communication. Which authentication method is supported?

You are asked to configure auto-RP as part of a new PIM sparse mode deployment in your network. Which two configuration tasks are required? (Choose two.)

You are configuring a Layer 2 circuit. Which two configuration steps are required? (Choose two.)

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. However, the Client 2 rou...

Referring to the exhibit, your network contains eight devices participating in OSPF Area 0, and they are all in a full IBGP mesh. R7 is learning the 172.27.0.0/24 network and is in...

You are asked to provide Layer 3 VPN services to a new customer site. The site will connect to the Layer 3 VPN using a Layer 2 switch. Which two configuration elements meet the req...

Given the following regular expression: (14203121870) Which two AS paths will match? (Choose two.)

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...

Click the Exhibit button. Each router in the exhibit is receiving three copies of the same IS-IS LSP from the other three routers in the topology. The additional copies of the IS-I...

Refer to the exhibit.

You must add the 5.0.0.1 OSPF route to the inet.3 routing table for LSP resolution. Which two configuration examples meet this requirement? (Choose two.)

Refer to the exhibit. What are two ways to resolve the error BGP label allocation failure: Need a next hop address on LAN? (Choose two.)

Which authentication method secures IS-IS hello, link-state, and sequence number PDUs?

Which action is required for BGP confederations to function?

Referring to the VPLS network shown in the exhibit, you notice that only one of the two CE sites configured under the VPLS instance forms a connection to the remote site. The other...

Which two statements describe the benefits of using point-to-multipoint LSPs in an environment with MVPNs? (Choose two.)

Given the following regular expression: .* 14203+(21870110458) Which two AS paths match? (Choose two.)

Refer to the exhibit. In a newly configured VPLS network, you see the output shown in the exhibit. The remote PE is 10.1.1.2. What is the cause for the OL status?

Referring to the exhibit, which two configuration steps must be implemented so that LSPs will be able to use link protection from R1 to R3? (Choose two.)

You are asked to provide redundancy to avoid a single point of failure for your route reflector cluster groups. Which action will accomplish this task?

Refer to the exhibit. You are implementing a Layer 3 VPN between Site 1 and Site 2. You notice that you are not sharing routes between PE1 and PE2. You have verified that MPLS and...

Referring to the exhibit, how should an export policy be configured to export only the 50.50.1.0/24 RIP summary route into OSPF? user@router> show route receive-protocol rip 2.2.2....

Refer to exhibit. Referring to the script and configuration shown in the exhibit, what would be the output after committing the configuration?

Click the Exhibit button. The exhibit displays an IS-IS topology and an IS-IS configuration for R3 and R4. R4 cannot reach any external destinations or addresses located in Area 49...

In the exhibit, you must configure an OSPF virtual link between R2 and R3 to facilitate communication between Area 0 and Area 2. Which two addresses should you use as the neighbor...

You are asked to share a customer's routes between two separate Layer 3 VPNs. The VPNs must remain separate. None of the shared routes should be sent to the remote PE devices. Whic...

The exhibit displays an IS-IS topology and IS-IS-related outputs for R1 and R2. The IS-IS adjacencies between R2 and R3 are in the Up state, but the IS-IS adjacency between R1 and...

You are deploying a next-generation multicast VPN in your network and must identify which routers require tunnel services?

Refer to the exhibit. You have the Layer 2 VPN configuration shown in the exhibit. You have been asked to determine the remote site ID for ge-1/0/4.512. What is the remote site ID?

You are asked to implement a BGP-signaled VPLS network for a new customer. Which two statements are correct regarding this implementation? (Choose two.)

You are asked to mask your Junos MPLS core network from users that use traceroute. You have configuration privileges only on the ingress device. Which feature will accomplish this...

You are asked to implement an LDP-signaled VPLS network for a new customer. Which two statements are correct regarding this implementation? (Choose two.)

You have recently configured an aggregated Ethernet interface between two devices in your network. The member links do not all reside within the same PFE complex. You must ensure t...

Refer to the exhibit. The configuration shown in the exhibit displays a configuration for a commit script. However, you are unable to automatically retrieve the script from the rem...

Refer to the exhibit. Which statement is true?

Click the Exhibit button. The exhibit displays an IS-IS topology and IS-IS configuration for R1, R2, and R3. R3 is redistributing the 10.100.100.0/24 route into IS-IS as an externa...

Referring to the exhibit, you see the proper BGP, MPLS, and routing instance configuration for PE1 and PE2. Which configuration on PE1 will allow CE1 to communicate with CE2 over a...

You have recently deployed an MPLS network using CSPF with its default settings. Which statement is true regarding path selection when multiple candidate paths exist?