[Q19-Q33] JN0-664 PDF Download Aug-2026 Juniper Test To Gain Brilliante Result!

5/5 - (1 vote)

JN0-664 PDF Download Aug-2026 Juniper Test To Gain Brilliante Result!

Provide Updated Juniper JN0-664 Dumps as Practice Test and PDF

Juniper JN0-664 Exam Syllabus Topics:

Section	Objectives
Multicast
Routing Protocols	– BGP – OSPF – IS-IS
MPLS Technologies	– Traffic Engineering – MPLS VPNs (Layer 3 VPN) – Label Distribution Protocol (LDP)
Core IP/MPLS Networking
Network Services and High Availability	– Redundancy and convergence mechanisms – Service provider architecture considerations

QUESTION 19
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.

OSPF neighborship is formed between the two CEs.

The CE and PE OSPF areas must match.

The CE and PE OSPF areas can be different.

QUESTION 20
In IS-IS, which two statements are correct about the designated intermediate system (DIS) on a multi-access network segment? (Choose two)

A router with a priority of 10 wins the DIS election over a router with a priority of 1.

A router with a priority of 1 wins the DIS election over a router with a priority of 10.

On the multi-access network, each router forms an adjacency to every other router on the segment

On the multi-access network, each router only forms an adjacency to the DIS.

QUESTION 21
You are configuring a Layer 3 VPN between two sites. You are configuring the vrf-target target : 65100:100 statement in your routing instance.
In this scenario, which two statements describe the vrf-target configuration? (Choose two.)

This value is used to identify BGP routes learned from the local CE device.

This value is used to identify BGP routes learned from the remote PE device.

This value is used to add a target community to BGP routes advertised to the local CE device.

This value is used to add a target community to BGP routes advertised to the remote PE device.

The `vrf-target` statement in a Layer 3 VPN configuration is used to control the import and export of VPN routes by attaching a target community to the routes. This helps in defining which VPN routes should be imported into or exported from a particular VRF (Virtual Routing and Forwarding) instance.
1. **Understanding VRF Target**:
– The `vrf-target` statement specifies the extended community attributes (route targets) that are used to control the import and export of routes in a VRF.
– These attributes help in identifying which routes should be shared between different VRFs, particularly across different PE (Provider Edge) devices.
2. **Statements Analysis**:
– **A. This value is used to identify BGP routes learned from the local CE device.**
– Incorrect. The `vrf-target` attribute is not used to identify routes learned from the local CE device. It is used to manage routes between PE devices and within the provider’s MPLS network.
– **B. This value is used to identify BGP routes learned from the remote PE device.**
– Correct. The `vrf-target` value helps in identifying which routes from remote PE devices should be imported into the local VRF. It essentially acts as a filter for importing BGP routes with matching target communities.
– **C. This value is used to add a target community to BGP routes advertised to the local CE device.**
– Incorrect. Routes advertised to the local CE device do not use the `vrf-target` attribute. Instead, these routes are typically managed within the local VRF routing table.
– **D. This value is used to add a target community to BGP routes advertised to the remote PE device.**
– Correct. When advertising routes from the local PE to remote PE devices, the `vrf-target` value is added to these routes. This target community ensures that the correct routes are shared across the VPN.
**Conclusion**:
The correct statements about the `vrf-target` configuration in a Layer 3 VPN scenario are:
**B. This value is used to identify BGP routes learned from the remote PE device.**
**D. This value is used to add a target community to BGP routes advertised to the remote PE device.**
**Reference**:
– Juniper Networks Documentation on VRF Target: [VRF Target Configuration](https://www.juniper.net/documentation/en_US/junos/topics/topic-map/layer-3-vpns.html)
– MPLS and VPN Architectures by Ivan Pepelnjak and Jim Guichard

QUESTION 22
Exhibit

Referring to the exhibit, which two statements are correct about the dual route reflectors within a cluster?
(Choose two.)

RR1 and RR2 must have the same duster ID to exchange routes learned from the client.

RR1 and RR2 append the duster ID when advertising routes from dient to dient.

RR1 and RR2 advertise routes learned from the clients to EBGP peers, using itself as the next hop.

RR1 advertises routes from the client to RR2. using itself as the next hop.

QUESTION 23
R2 is receiving the same route from R1 and R3. You must ensure that you can load balance traffic for that route.
Referring to the exhibit, which configuration change will allow load balancing?

Configure the multipath parameter under the global BGP configuration.

Apply the prepend policy as an import policy under group R1.

Configure the multipath multiple-as parameter under the global BGP configuration.

Apply the prepend policy as an import policy under group R3.

QUESTION 24
Exhibit

Referring to the exhibit, which three statements are correct about route 10 0 0.0/16 when using the default BGP advertisement rules’? (Choose three.)

R1 will prepend AS 65531 when advertising 10 0.0 0/16 to R2.

R1 will advertise 10.0.0.0/16 to R2 with 192 168 1 1 as the next hop.

R2 will advertise 10.0.0.0/16 to R3 with 192.168.1 1 as the next hop

R4 will advertise 10 0.0 0/16 to R6 with 172.16 1 1 as the next hop

R2 will advertise 10.0.0.0/16 to R4 with 172.16.1.1 as the next hop

QUESTION 25
Which two statements are correct about VPLS tunnels? (Choose two.)

LDP-signaled VPLS tunnels only support control bit 0.

LDP-signaled VPLS tunnels use auto-discovery to provision sites

BGP-signaled VPLS tunnels can use either RSVP or LDP between the PE routers.

BGP-signaled VPLS tunnels require manual provisioning of sites.

QUESTION 26
Exhibit

Referring to the exhibit, which three statements are correct about route 10 0 0.0/16 when using the default BGP advertisement rules’? (Choose three.)

R1 will prepend AS 65531 when advertising 10 0.0 0/16 to R2.

R1 will advertise 10.0.0.0/16 to R2 with 192 168 1 1 as the next hop.

R2 will advertise 10.0.0.0/16 to R3 with 192.168.1 1 as the next hop

R4 will advertise 10 0.0 0/16 to R6 with 172.16 1 1 as the next hop

R2 will advertise 10.0.0.0/16 to R4 with 172.16.1.1 as the next hop

QUESTION 27
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 28
Referring to the exhibit, what must be changed to establish a Level 1 adjacency between routers R1 and R2?

Change the level l disable parameter under the R1 protocols isis interface lo0.0 hierarchy to the level 2 disable parameter.

Add IP addresses to the interface ge-1/2/3 unit 0 family iso hierarchy on both R1 and R2.

Remove the level 1 disable parameter under the R2 protocols isis interface lo0.0 configuration hierarchy.

Change the level 1 disable parameter under the R2 protocols isis interface ge-l/2/3.0 hierarchy to the level 2 disable parameter.

QUESTION 29
When building an interprovider VPN, you notice on the PE router that you have hidden routes which are received from your BGP peer with family inet labeled-unica3t configured.
Which parameter must you configure to solve this problem?

Under the family inet labeled-unicast hierarchy, add the explicit null parameter.

Under the protocols ospf hierarchy, add the traffic-engineering parameter.

Under the family inet labeled-unicast hierarchy, add the resolve-vpn parameter.

Under the protocols mpls hierarchy, add the traffic-engineering parameter

QUESTION 30
Exhibit.

Referring to the exhibit, what must be changed to establish a Level 1 adjacency between routers R1 and R2?

Change the level l disable parameter under the R1 protocols isis interface lo0.0 hierarchy to the level 2 disable parameter.

Add IP addresses to the interface ge-1/2/3 unit 0 family iso hierarchy on both R1 and R2.

Remove the level 1 disable parameter under the R2 protocols isis interface lo0.0 configuration hierarchy.

Change the level 1 disable parameter under the R2 protocols isis interface ge-l/2/3.0 hierarchy to the level 2 disable parameter.

QUESTION 31
Which two statements about IS-IS are correct? (Choose two.)

CSNPs are flooded periodically.

PSNPs are flooded periodically.

PSNPs contain only descriptions of LSPs.

CSNPs contain only descriptions of LSPs.

QUESTION 32
Exhibit

Referring to the exhibit, which statement is true?

The 10.101.1.0/24 route will be shared if the vrf-table-label parameter is configured.

The 10.101.1.0/24 route will only be shared if BGP is configured in the routing instance

The 10.101.1 0/24 route will be shared if there are other VRFs that use the same route target community

The 10.101.1.0/24 route will be shared if the auto-export parameter is configured

QUESTION 33
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?

The routes use overlapping IP addresses.

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

There is a routing loop in the service provider backbone.

Route targets are not configured.