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Juniper JN0-348

Enterprise Routing and Switching, Specialist

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

  • 92

    questions

  • 2 days ago

    last updated

  • 4.8/5

    overall rating

Question 1 of 92

What are two benefits of 802.3ad link aggregation? (Choose two.)

Answer choices
Show answer

Correct answers: A, D

802.3ad link aggregation, also known as LACP (Link Aggregation Control Protocol), provides two main benefits: it increases bandwidth and creates physical layer redundancy. By bundling multiple Ethernet links into a single logical link, the overall bandwidth between the devices is increased, allowing for better performance and load distribution across multiple links. Additionally, it provides redundancy because if one link in the aggregation fails, the remaining links continue to carry the traffic, improving the availability and reliability of the network connection.

Question 2 of 92

Which statement is true about IP-IP tunnels?

Answer choices
Show answer

Correct answer: B

In IP-IP tunnels, traffic is encapsulated and forwarded through intermediate devices to the tunnel endpoints. For the end-to-end communication to be successful, the intermediary devices must be able to route packets from the tunnel's source to its destination and vice versa. This requires knowledge of both the source and destination addresses of the tunnel to ensure bidirectional communication. Therefore, intermediate devices must have a route to both the tunnel source address and the tunnel destination address.

Community votes

10 votes

BSuggested

50%

C

50%

Question 3 of 92

You have a conference room with an open network port that is used by employees to connect to the network. You are concerned about rogue switches being connected to this port.

Which two features should you enable on your switch to limit access to this port? (Choose two.)

Answer choices
Show answer

Correct answers: C, D

To limit access to an open network port and prevent rogue switches from being connected, enabling MAC limiting and 802.1X are the most effective measures. MAC limiting restricts the number of MAC addresses that can connect to a port, which would prevent a rogue switch from connecting multiple devices through that port. 802.1X provides network access control by requiring authentication before allowing devices to access the network, ensuring only authorized devices can connect. DHCP snooping and dynamic ARP inspection are primarily used to protect against DHCP spoofing and IP address mismatches, which are issues related to host devices rather than rogue switches.

Community votes

6 votes

CDSuggested

100%

Question 4 of 92

Which statement is correct about IS-IS link state PDUs?

Answer choices
Show answer

Correct answer: C

IS-IS link state PDUs are used to build the link-state database. These PDUs (Protocol Data Units) carry information about the state of the links in the network, which routers use to build a comprehensive map or database of the network topology. This allows routers to calculate the best path through the network.

Question 5 of 92

Which Junos feature allows you to combine multiple interfaces into a single bundle?

Answer choices
Show answer

Correct answer: C

Link Aggregation (LAG) is a feature that allows you to group multiple network interfaces together into a single logical interface. This boosts bandwidth and provides redundancy since if one link fails, the other links in the group can continue to carry traffic.

Community votes

1 vote

CSuggested

100%

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Stories from the certified

May 11, 2026
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.
Charles Sirois
Canada
May 5, 2026
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.
Lance Chambers
United States
Apr 11, 2026
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.
Alisha Kelly
Italy
Apr 9, 2026
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.
Casper Claassen
Netherlands
Jun 2, 2025
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.
Gabriele Ghesla
Italy
May 11, 2026
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.
Charles Sirois
Canada
May 5, 2026
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.
Lance Chambers
United States
Apr 11, 2026
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.
Alisha Kelly
Italy
Apr 9, 2026
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.
Casper Claassen
Netherlands
Jun 2, 2025
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.
Gabriele Ghesla
Italy
Apr 13, 2026
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.
Morgan Farmer
United Kingdom
May 4, 2026
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Remi Nuyts
United States
Apr 9, 2026
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.
Archie Hopkins
United States
Apr 11, 2026
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.
Nancy Mcbride
United States
May 8, 2026
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.
Neil Savage
United States
Apr 13, 2026
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.
Morgan Farmer
United Kingdom
May 4, 2026
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Remi Nuyts
United States
Apr 9, 2026
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.
Archie Hopkins
United States
Apr 11, 2026
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.
Nancy Mcbride
United States
May 8, 2026
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.
Neil Savage
United States

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Answers about access, updates, payments, and the refund policy.

01Are these real exam questions?

Our Juniper JN0-348 questions are based on real exam experiences and are continuously updated to match the current exam format. Most candidates who study with us report passing on their first attempt, based on a self reported post exam survey.

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You get access to all 92 questions in our database for the Juniper JN0-348 exam. This includes detailed explanations and answer justifications to help you understand the concepts thoroughly.

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