Juniper JN0-664 Materials - JN0-664 Free Sample Questions

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Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Exam is a professional-level certification exam designed for individuals who want to demonstrate their advanced skills in service provider routing and switching technologies. JN0-664 Exam is intended for network professionals who have a solid understanding of Juniper Networks technology and are looking to advance their knowledge and skills to the next level.

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Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q63-Q68):

NEW QUESTION # 63
Which two statements are correct about VPLS tunnels? (Choose two.)

A. LDP-signaled VPLS tunnels only support control bit 0.
B. BGP-signaled VPLS tunnels require manual provisioning of sites.
C. BGP-signaled VPLS tunnels can use either RSVP or LDP between the PE routers.
D. LDP-signaled VPLS tunnels use auto-discovery to provision sites

Answer: A,C

Explanation:
https://www.juniper.net/documentation/us/en/software/nce/feature-guide-virtual-private-lan-service/topics/task/vpls-ldp-signaling-solutions.html
https://www.juniper.net/documentation/us/en/software/junos/vpn-l2/topics/concept/vpns-configuring-vpls-routing-instances.html#id-11510150__id-11568648

NEW QUESTION # 64
Click the Exhibit button.

Referring to the exhibit, which statement is correct?

A. You cannot use the vrf-target and vrf-export statements in the same VRF.
B. VPN routes are exported with the target:65512:1 and target:65512:2 route targets.
C. VPN routes with the target:65512:1 and target:65512:2 route targets are imported.
D. VPN routes are exported with only the target:65512:1 route target

Answer: B

Explanation:
The exhibit shows the configuration of a VRF (Virtual Routing and Forwarding) instance on a Juniper PE router. Let's break down the key components:
VRF Configuration (VPN-A)
The instance type is VRF, meaning this is an L3VPN (Layer 3 VPN).
The routing instance contains a static route (10.1.0.0/16 next-hop 10.1.0.1).
The interface ge-0/0/2.0 is assigned to the VRF.
Route Distinguisher (RD): 172.17.20.1:1
VRF-Export Policy: vpn-a-export
VRF-Target: target:65512:1 (This defines which routes will be imported into the VRF).
VRF Export Policy (vpn-a-export)
The vpn-a-export policy adds two BGP communities (route targets) to exported VPN routes:
community add vpn-a-target;
community add vpn-m-target;
accept;
The vpn-a-target community corresponds to target:65512:1.
The vpn-m-target community corresponds to target:65512:2.
Policy-Options (Community Definitions)
community vpn-a-target members target:65512:1;
community vpn-m-target members target:65512:2;
This confirms that routes exported from this VRF will have BOTH target:65512:1 and target:65512:2.
Evaluating the Answer Choices
✅ Option A: "VPN routes are exported with the target:65512:1 and target:65512:2 route targets." The vpn-a-export policy explicitly adds both vpn-a-target (65512:1) and vpn-m-target (65512:2) to exported routes.
This is correct. ✅
❌ Option B: "You cannot use the vrf-target and vrf-export statements in the same VRF." This is incorrect.
Juniper allows the use of both vrf-target and vrf-export in the same VRF:
vrf-target is used for importing routes.
vrf-export defines export policies (which can add additional route targets).
This is incorrect. ❌
❌ Option C: "VPN routes with the target:65512:1 and target:65512:2 route targets are imported." The vrf-target target:65512:1; statement only controls importing routes.
The import policy does not include target:65512:2, so routes tagged with target:65512:2 alone would not be imported into this VRF.
This is incorrect. ❌
❌ Option D: "VPN routes are exported with only the target:65512:1 route target." The export policy (vpn-a-export) clearly adds both 65512:1 and 65512:2.
This is incorrect. ❌
Final answer:
✅ A. VPN routes are exported with the target:65512:1 and target:65512:2 route targets.
Verification from Juniper Documentation
Juniper MPLS L3VPN Configuration Guide confirms that vrf-target is used for importing, while vrf-export can be used for exporting multiple route targets.
Juniper Routing Policy Documentation states that export policies can add multiple BGP communities (route targets).
RFC 4364 (BGP/MPLS IP VPNs) defines the use of route targets for VPN route control.

NEW QUESTION # 65
Exhibit

You are attempting to summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500. You implement the export policy shown in the exhibit and all routes from the routing table stop being advertised.
In this scenario, which two steps would you take to summarize the route in BGP? (Choose two.)

A. Add the set routing-options static route 203.0.113.123/25 discard command.
B. Add the set protocols bgp family inet unicast add-path command to allow additional routes to the RIB tables. -
C. Remove the from protocol bgp command from the export policy.
D. Replace exact in the export policy with orlonger.

Answer: A,D

Explanation:
To summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500, you need to do the following:
* Add the set routing-options static route 203.0.113.128/25 discard command. This creates a static route for the summary prefix and discards any traffic destined to it. This is necessary because BGP can only advertise routes that are present in the routing table.
* Replace exact in the export policy with orlonger. This allows R8 to match and advertise any route that is equal or more specific than the summary prefix. The exact term only matches routes that are exactly equal to the summary prefix, which is not present in the routing table.

NEW QUESTION # 66
Which three mechanisms are used by Junos platforms to evaluate incoming traffic for CoS purposes? (Choose three )

A. behavior aggregate classifiers
B. traffic shapers
C. rewrite rules
D. fixed classifiers
E. multifield classifiers

Answer: A,D,E

Explanation:
Junos platforms use different mechanisms to evaluate incoming traffic for CoS purposes, such as:
Behavior aggregate classifiers: These classifiers use a single field in a packet header to classify traffic into different forwarding classes and loss priorities based on predefined or user-defined values.
Fixed classifiers: These classifiers use a fixed field in a packet header to classify traffic into different forwarding classes and loss priorities based on predefined values.
Multifield classifiers: These classifiers use multiple fields in a packet header to classify traffic into different forwarding classes and loss priorities based on user-defined values and filters.
Rewrite rules and traffic shapers are not used to evaluate incoming traffic for CoS purposes, but rather to modify or shape outgoing traffic based on CoS policies.

NEW QUESTION # 67
You enabled a new router (R3) in your network but all destinations using IS-IS routes are not properly load balancing over this new router.
Referring to the exhibit, what is the problem?

A. R2 is missing internal routes for R1.
B. R3 does not have wide-metrics enabled.
C. R1 does not have wide-metrics enabled.
D. R1 is missing internal routes for R2.

Answer: B

NEW QUESTION # 68
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Juniper JN0-664 Materials - JN0-664 Free Sample Questions

Pass Guaranteed Quiz 2026 Juniper JN0-664: Unparalleled Service Provider, Professional (JNCIP-SP) Materials

Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q63-Q68):

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