JN0-660 Exam Questions

You are using the 224.2.0.0/16 multicast address range for SSM applications in your network. However, since you have deployed SSM in your network, SAP/SDP application communication...

You are asked to implement PIM-SM in your network, which consists of equipment from multiple vendors. You must configure multiple RP discovery methods in this environment for redun...

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 want to enable PFE fast reroute for the MPLS nodes that are acting as bypass routers for multiple MPLS LSPs. Which action must you take to facilitate this behavior?

You are setting up MPLS RSVP LSPs between R1 and R6 through your core network. You must ensure that R1 has redundant ERO paths. If the main path fails and moves traffic to a second...

You are setting up MPLS RSVP LSPs between R1 and R6 through your core network. You must ensure that the R1 has redundant ERO paths. You must also ensure that both paths are signale...

You are deploying an MPLS network that uses traffic engineering. You are asked to formulate a plan to engineer LSPs and must identify configurable user inputs to do this. Which thr...

Which two statements are true regarding the CSPF algorithm? (Choose two.)

You want to ensure your multivendor MPLS core network does not decrease the TTL when using ping and traceroute from IP endpoints. Which configuration parameter satisfies this requi...

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 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...

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...

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?

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 deploying a next-generation multicast VPN in yournetworkand must identify which routers require tunnel services?

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...

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

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 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...

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?

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

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

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

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...

Refer to the exhibit.

Refer to the exhibit. Which statement is true?

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

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

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 determi...

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

Refer to the exhibit. 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?

Which action is required for BGP confederations to function?

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...

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...

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

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

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

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.)

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

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...

Which two LSA types are permitted in an OSPF stub area? (Choose two.)

You want to add a new OSPF area to your existing OSPF network; however, this area will not be directly connected to Area 0. Which feature would you use to complete this task?

Which neighbor state indicates that two BGP neighbors have full connectivity?

Which table is considered the MPLS routing table?