Updated Nov-2025 100% Cover Real JN0-664 Exam Questions – 100% Pass Guarantee [Q27-Q46]

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Updated Nov-2025 100% Cover Real JN0-664 Exam Questions – 100% Pass Guarantee

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Juniper JN0-664 certification exam is designed for professionals who want to validate their skills and knowledge in the field of service provider networking. Service Provider, Professional (JNCIP-SP) certification exam is a part of the Juniper Networks Certification Program, and passing it is a crucial step for those who want to advance their careers in service provider networking.

The JNCIP-SP certification is highly regarded in the service provider industry and is recognized globally. Service Provider, Professional (JNCIP-SP) certification validates the candidate’s advanced knowledge and skills in service provider routing and switching technologies, making them stand out in the job market. Service Provider, Professional (JNCIP-SP) certification also opens up new career opportunities for professionals in the service provider domain, such as network engineer, network architect, and network operations center (NOC) engineer. Overall, the Juniper JN0-664 certification exam is an excellent way for service provider professionals to demonstrate their skills and advance their careers.

QUESTION 27
You want to ensure that a single-area OSPF network will be loop free.
In this scenario, what are two requirements that satisfy this requirement? (Choose two.)

The DR/BDR ensures that each node within an area has the same information in their LSDBs.

The Shortest Path First algorithm must prune looped paths.

Nodes within an area must connect in a full mesh.

All nodes within an area must have the same information in their LSDBs.

QUESTION 28
You have an L2VPN connecting two CEs across a provider network that runs OSPF. You have OSPF configured on both CEs.
Which two statements are correct in this scenario? (Choose two.)

OSPF neighborship is formed between the CEs and PEs.

The CE and PE OSPF areas can be different.

The CE and PE OSPF areas must match.

OSPF neighborship is formed between the two CEs.

QUESTION 29
What is the correct order of packet flow through configurable components in the Junos OS CoS features?

Multifield Classifier -> Behavior Aggregate Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Rewrite Marker -> Scheduler/Shaper/RED

Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker

Behavior Aggregate Classifier -> Input Policer -> Multifield Classifier -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker

Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Scheduler/Shaper/RED -> Output Policer -> Rewrite Marker

QUESTION 30
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?

Configure the explicit-null statement on PE-1.

Configure the explicit-null statement on PE-2

Configure VPN prefix mapping for the PE-1_to_PE-2 LSP

Set a static CoS value for the PE-1_to_PE-2 LSP

QUESTION 31
Exhibit

Referring to the exhibit, what do the brackets [ ] in the AS path identify?

They identify the local AS number associated with the AS path if configured on the router, or if AS path prepending is configured

They identify an AS set, which are groups of AS numbers in which the order does not matter

They identify that the autonomous system number is incomplete and awaiting more information from the BGP protocol.

They identify that a BGP confederation is being used to ensure that there are no routing loops.

QUESTION 32
What is the correct order of packet flow through configurable components in the Junos OS CoS features?

Multifield Classifier -> Behavior Aggregate Classifier -> Input Policer -> Forwarding Policy Options
-> Fabric Scheduler -> Output Policer -> Rewrite Marker -> Scheduler/Shaper/RED

Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options
-> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker

Behavior Aggregate Classifier -> Input Policer -> Multifield Classifier -> Forwarding Policy Options
-> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker

Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options
-> Fabric Scheduler -> Scheduler/Shaper/RED -> Output Policer -> Rewrite Marker

QUESTION 33
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?

Configure VPN prefix mapping for the PE-1_to_PE-2 LSP.

Set a static CoS value for the PE-1_to_PE-2 LSP.

Configure the explicit-null statement on PE-2.

Configure the explicit-null statement on PE-1.

QUESTION 34

Click the Exhibit button.
PE-1 and PE-2 are configured with LDP-signaled pseudowires to provide connectivity between CE-1 and CE-2. You notice no connectivity exists between CE-1 and CE-2.
Referring to the exhibit, which two statements describe potential causes for this fault? (Choose two.)

The VC IDs are mismatched.

There is no LSP configured from PE-1 to PE-2.

Interface ge-0/0/0 on PE-1 is down.

There is no LSP configured from PE-2 to PE-1.

QUESTION 35
You are configuring a BGP signaled Layer 2 VPN across your MPLS enabled core network. Your PE-2 device connects to two sites within the s VPN In this scenario, which statement is correct?

By default on PE-2, the site’s local ID is automatically assigned a value of 0 and must be configured to match the total number of attached sites.

You must create a unique Layer 2 VPN routing instance for each site on the PE-2 device.

You must use separate physical interfaces to connect PE-2 to each site.

By default on PE-2, the remote site IDs are automatically assigned based on the order that you add the interfaces to the site configuration.

QUESTION 36
Refer to the exhibit.

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

The multihop configuration is used for load balancing.

This route is learned from two different AS numbers.

This route is learned from the same AS number.

The multipath configuration is used for load balancing.

QUESTION 37
Exhibit

Referring to the exhibit, which statement is correct?

The vrf-target configuration will allow routes to be shared between CE-1 and CE-2.

The vrf-target configuration will stop routes from being shared between CE-1 and CE-2.

The route-distinguisher configuration will allow overlapping routes to be shared between CE-1 and CE-2.

The route-diatinguisher configuration will stop routes from being shared between CE-1 and CE-2.

QUESTION 38
Click the Exhibit button.

Referring to the exhibit, which statement is correct?

VPN routes are exported with the target:65512:1 and target:65512:2 route targets.

You cannot use the vrf-target and vrf-export statements in the same VRF.

VPN routes with the target:65512:1 and target:65512:2 route targets are imported.

VPN routes are exported with only the target:65512:1 route target

QUESTION 39
Exhibit

Referring to the exhibit, CE-1 is providing NAT services for the hosts at Site 1 and you must provide Internet access for those hosts Which two statements are correct in this scenario? (Choose two.)

You must configure a static route in the main routing instance for the 10 1 2.0/24 prefix that uses the VPN-A.inet.0 table as the next hop

You must configure a static route in the main routing instance for the 203.0.113.1/32 prefix that uses the VPN-A.inet.0 table as the next hop.

You must configure a RIB group on PE-1 to leak a default route from the inet.0 table to the VPN-A.inet.0 table.

You must configure a RIB group on PE-1 to leak the 10 1 2.0/24 prefix from the VPN-A.inet.0 table to the inet.0 table.

QUESTION 40
Exhibit

A network is using IS-IS for routing.
In this scenario, why are there two TLVs shown in the exhibit?

There are both narrow and wide metric devices in the topology

The interface specified a metric of 100 for L2.

Wide metrics have specifically been requested

Both IPv4 and IPv6 are being used in the topology

QUESTION 41
Exhibit

You are troubleshooting the connection between AS 64496 and AS 64497 and notice that only one of the paths is being used for traffic forwarding.
Referring to the exhibit, which three actions will ensure that R1 is configured properly for load balancing BGP routes? (Choose three.)

Verify that the routing table on R1 has BGP routes for 203.0.113.128/25 with multiple next hops.

Verify that the multipath option is configured under protocols bgp on both R2 and R3.

Verify that there is a load balancing export policy under routing-options for the received BGP routes on R1.

Verify that the multipath option is configured under protocols bgp on R1.

Verify that an import load balancing policy exists under protocols bgp for the received BGP routes on R1.

QUESTION 42
Refer to the exhibit.

Click the Exhibit button.
After adding Customer C to your Layer 3 VPN, you must ensure that PE2 is receiving VPN routes for all customers attached to PE1, as shown in the exhibit.
Which operational command displays this information?

show route table inet.0

show route table bgp.l3vpn.0

show route table customer-c.inet.0

show route summary

QUESTION 43
You are using a Layer 3 VPN to connect two customer sites. The VPN routes for the customer networks appear as hidden in the bgp. 13vpn. o routing table on the PE routers.
What is causing this problem?

There is not an established MPLS LSP between the two PE routers.

Route targets are not configured.

There is a routing loop in the service provider backbone.

The routes use overlapping IP addresses.

QUESTION 44
Exhibit

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

Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10

Joins for any group are accepted if the group count value is less than 25.

Joins for group 224.7.7.7 are always rejected, regardless of the group count.

Joins for group 224.7.7.7 are accepted if the group count is less than 25

QUESTION 45
Exhibit

CE-1 must advertise ten subnets to PE-1 using BGP Once CE-1 starts advertising the subnets to PE-1, the BGP peering state changes to Active.
Referring to the CLI output shown in the exhibit, which statement is correct?

CE-1 is advertising its entire routing table.

CE-1 is configured with an incorrect peer AS

The prefix limit has been reached on PE-1

CE-1 is unreachable

QUESTION 46
After a recent power outage, your manager asks you to investigate ways to automatically reduce the impact caused by suboptimal routing in your OSPF and OSPFv3 network after devices reboot.
Which three configuration statements accomplish this task? (Choose three.)

set protocols ospf3 realm ipv4-unicast overload timeout 900

set protocols ospf overload

set protocols ospf overload timeout 900

set protocols ospf3 overload

set protocols ospf3 overload timeout 900