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Juniper JN0-1300

Juniper Networks Certified Design Specialist Data Center (JNCDS-DC)

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

  • 45

    questions

  • 4 days ago

    last updated

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Question 1 of 45

A customer has reached the limit of their IEEE Layer 2 VLAN implementation. The customer then switches to a VXLAN overlay architecture using Layer 3.

In this scenario, how many unique VXLAN segments are mathematically available?

Answer choices
Show answer

Correct answer: D

VXLAN is a header encapsulation technology that defines a 50 Byte wide header. The header itself includes a VXLAN ID (VNI or also called segment ID) field that is 24 bits wide allowing for 16,777,216 (2^24) unique VXLAN segments.
Reference: https://dcxtc.files.wordpress.com/2012/12/vxlan-industry-brief-jakehowering-2212013.pdf

Question 2 of 45

A customer is using a Clos IP fabric design in their data center.

What is the advantage of using EBGP signaling between spine and leaf nodes rather than IBGP in this scenario?

Answer choices
Show answer

Correct answer: D

By default, EBGP meets all of the implementation requirements when you build the IP fabric. Theres no need for BGP route reflection or BGP Add Path with

EBGP -
Reference: http://www.juniper.net/us/en/local/pdf/whitepapers/2000565-en.pdf

Question 3 of 45

From a network management perspective, a Virtual Chassis consisting of the five physical switches will appear as how many devices?

Answer choices
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Correct answer: B

Juniper Networks Virtual Chassis technology, available on most Juniper Networks EX Series Ethernet Switches and QFX Series Ethernet switches, addresses many data center and campus challenges by allowing multiple interconnected switches to behave, operate, and be managed as a single logical, high-bandwidth device.
Reference: https://www.juniper.net/assets/us/en/local/pdf/whitepapers/2000427-en.pdf

Question 4 of 45

You are building a Layer 3 Clos data center network using IBGP as the control plane protocol.

What would you use in the spine nodes to accomplish this task?

Answer choices
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Correct answer: D

Reference: http://www.juniper.net/us/en/local/pdf/whitepapers/2000565-en.pdf page 10

Question 5 of 45

You are using IBGP with route reflection in your Clos IP fabric.

Which feature must you enable to allow the route reflector to advertise multiple versions of a route instead of only the best version?

Answer choices
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Correct answer: A

BGP typically selects only one best path for each prefix and installs that route in the routing table. When BGP multipath is enabled, the device selects multiple equal-cost EBGP paths as the best paths to reach a given destination, and all these paths are installed in the routing table. BGP advertises only the active path to its neighbors. However, you can configure BGP to advertise multiple paths to the same destination for redundancy and load balancing.
Reference: http://www.juniper.net/documentation/en_US/junos14.1/topics/topic-map/bgp-multipath.html

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Charles Sirois
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As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
Lance Chambers
United States
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
Italy
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.
Casper Claassen
Netherlands
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.
Gabriele Ghesla
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The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
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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.
Morgan Farmer
United Kingdom
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
United States
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
United States
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
United States
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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