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Juniper JN0-663

Service Provider Routing and Switching, Professional (JNCIP-SP)

Verified practice questions with detailed answers, clear explanations, and community discussion.

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Question 1 of 96

Exam JN0-663: Question 1 - Image 1

You notice an inconsistency between the routing table and the OSPF database, as shown in the exhibit.

What are two reasons for this behavior? (Choose two.)

Answer choices
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Correct answers: C, D

An OSPF import policy allows you to prevent specific external routes from being added to the routing table, which can cause the inconsistency observed. The import policy impacts the routing table but does not affect the OSPF database. Additionally, the LSA is a Type 5 LSA, which is used for external routes in OSPF. Therefore, the reasons for the behavior are the use of an OSPF import policy and the presence of a Type 5 LSA.

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Question 2 of 96

Exam JN0-663: Question 2 - Image 1

R2 is receiving the same route from R1 and R3. must ensure that you can load balance traffic for that route.

Referring to the exhibit, which two configuration changes will allow load balancing? (Choose two.)

Answer choices
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Correct answers: B, C

To enable load balancing for the same route received from R1 and R3, you need to configure BGP multipath. This can be done under the global BGP configuration to apply it universally. Additionally, multipath can be configured under group R1 to ensure it is recognized and implemented correctly for the specific group. Applying a prepend policy as suggested in options A or D does not aid in load balancing. Instead, it affects route preference by making one path less preferred, which contradicts the goal of load balancing. Therefore, configuring multipath both globally and under group R1 enables BGP to recognize and use multiple paths for load balancing traffic effectively.

Community votes

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Question 3 of 96

Exam JN0-663: Question 3 - Image 1

Referring to the exhibit, hosts in Site 1 and Site 2 are unable to communicate with each other through the Layer 3 VPN.

What is the problem?

Answer choices
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Correct answer: A

The problem is that both sites are in the same autonomous system (AS 65111). In BGP (Border Gateway Protocol), if routes originate from the same AS, the routes could be rejected to prevent routing loops. In this scenario, each CE router will see its own AS in the AS path of the BGP update and will reject the route accordingly. This behavior can be modified by using features like AS-override, which allows the service provider to modify the AS path.

Question 4 of 96

Exam JN0-663: Question 4 - Image 1

You manage an MX Series device which includes the configuration shown in the exhibit. Traffic marked with DSCP 000011 is entering the ge-1/0/4 interface at

102 Mbps. The traffic exits the device on the ge-1/0/5 interface. No other traffic is transiting the router.

In this scenario, what happens to traffic exceeding 100 Mbps?

Answer choices
Show answer

Correct answer: D

In the given configuration and the details provided, there is no indication of any rate limiters or policers being applied to the traffic. The configuration only shows the classifiers and forwarding classes, but not the application of any specific rate limiting. Given that traffic marked with DSCP 000011 is assigned to the 'medium-priority' forwarding class and assuming a default scheduler behavior, without the presence of congestion or specific rate-limiting configurations, traffic exceeding 100 Mbps would still be forwarded, utilizing available bandwidth. Thus, the correct conclusion is that traffic exceeding 100 Mbps is forwarded.

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Question 5 of 96

What is the purpose of the cluster-list attribute within a BGP route reflector group?

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Correct answer: B

The purpose of the cluster-list attribute within a BGP route reflector group is to facilitate loop detection within the route reflector network. In a BGP network, route reflectors are used to reduce the number of BGP sessions required and to improve scalability. The cluster-list attribute helps in preventing routing loops by keeping track of the route reflectors that a given route has passed through. If a route is received that has a cluster ID already present in the cluster-list, it indicates a loop and the route is discarded.

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Wasted about a month going through the free dump sites scattered all over reddit, half the answers were wrong and the other half were for a version of the exam that doesn't even exist anymore. Eventually gave in and paid the small fee here, and the difference was night and day.
Alisha Kelly
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Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
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Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
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Morgan Farmer
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I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Remi Nuyts
United States
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Archie Hopkins
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I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Nancy Mcbride
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Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Neil Savage
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A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.

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