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Juniper JN0-348 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Enterprise Routing and Switching, Specialist (JNCIS-ENT) |
| Exam Number: | JN0-348 |
| Real Exam Qty: | 65 |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Related Certifications: | JNCIA-Junos JNCIE-ENT JNCIP-ENT |
| Exam Price: | $200 USD |
| Passing Score: | Variable scaled score (typically ~65-70%) |
| Exam Format: | Multiple choice, Scenario-based questions |
| Recommended Training: | Junos Intermediate Routing (JIR) Junos Enterprise Routing and Switching |
| Exam Registration: | Juniper Exam Page Pearson VUE Registration |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Delivered online or at test centers via Pearson VUE |
| Pre Condition: | Recommended prerequisite: JNCIA-Junos certification (JN0-104 or equivalent knowledge) |
| Official Syllabus URL: | https://www.juniper.net/training/certification/exams/jn0-348.html |
Juniper JN0-348 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: OSPF | 15% | - OSPFv2 and OSPFv3 concepts - Areas, neighbors, and adjacencies - Configuration, monitoring, and troubleshooting |
| Topic 2: IS-IS | 10% | - Level 1 and Level 2 routing - Basic configuration and verification - IS-IS routing hierarchy |
| Topic 3: Layer 2 Switching and VLANs | 20% | - Ethernet switching concepts - Inter-VLAN routing - VLAN configuration and operation - Trunking and native VLAN |
| Topic 4: IP Tunneling and High Availability | 10% | - Nonstop Active Routing (NSR) - GRE and IP-IP tunnels - Graceful Routing Engine Switchover (GRES) - Unified ISSU |
| Topic 5: BGP | 10% | - IBGP and EBGP peering - BGP attributes and path selection - Policy implementation and troubleshooting |
| Topic 6: Layer 2 Security | 10% | - Storm control - DHCP snooping and ARP inspection - Port security and MAC limiting - BPDU protection and root protection |
| Topic 7: Protocol-Independent Routing | 10% | - Routing policy and filters - Static and aggregate routes - Load balancing and filter-based forwarding |
| Topic 8: Spanning Tree Protocols | 15% | - Port roles, states, and BPDU handling - STP, RSTP, MSTP concepts - Loop protection and configuration |
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT): Common Questions From Candidates
What is the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) certification exam?
The Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam (code: JN0-348) is the official Juniper exam that leads to the JNCIS-ENT (Enterprise Routing and Switching, Specialist) certification. It sits at the Specialist level of the Juniper certification track. It is also connected with related credentials such as JNCIA-Junos, JNCIP-ENT, JNCIE-ENT. Passing it proves to employers that your skills have been validated by Juniper itself, which is why the JN0-348 credential keeps showing up in job postings.
How many questions are in the JN0-348 exam, and how long does it take?
The Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam gives you 90 minutes to work through 65. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.
What score do I need to pass the JN0-348 exam, and how much does it cost?
The passing score for the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam is Variable scaled score (typically ~65-70%), and the official registration fee is $200 USD. Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with Dumpkiller practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above Variable scaled score (typically ~65-70%).
Are there any prerequisites for the JN0-348 exam?
According to Juniper, the following applies: Recommended prerequisite: JNCIA-Junos certification (JN0-104 or equivalent knowledge). Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://www.juniper.net/training/certification/exams/jn0-348.html before you register.
How do I register for the JN0-348 exam?
You can book your Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam through the official channels below:
Depending on availability in your region, the exam is delivered as Delivered online or at test centers via Pearson VUE.
What official training does Juniper recommend for the JN0-348 exam?
Juniper lists the following training options for Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) candidates:
Official courses build a solid foundation, and pairing them with the 95 practice questions from Dumpkiller shows you how ready you really are before you spend money on the exam itself.
Can I try the JN0-348 practice questions before buying?
Yes. Dumpkiller offers a free JN0-348 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.
What happens if I do not pass the JN0-348 exam, and how is my order delivered?
If you take the corresponding JN0-348 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.
What topics are covered in the JN0-348 exam?
The official Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) syllabus is organized into 8 main domains. The first three are OSPF (15%), Layer 2 Security (10%), and Protocol-Independent Routing (10%). For the full domain-by-domain breakdown, see the complete Exam Topics outline above.
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
Question 1
Exhibit.
Referring to the exhibit, which statement is correct?
A. This switch is currently blocking all traffic.
B. This switch has a bridge priority of 8k.
C. The ge-0/0/15 interface is using the default port cost.
D. The ge-0/0/9 interface is using the default interface priority value.
Question 2
Exhibit.
You manage the layer 2 network shown in the exhibit, You experience a failure on the ge-0/0/0 link between Swicth-1 and Switch-2.
Which statement is correct about expected behavior?
A. Switch-2 will become the root bridge for a separate RSTP topology.
B. Switch-2's ge0/0/2 port role and state will remain as designated and forwarding.
C. Switch-2 will remove itself from the RSTP topology.
D. Swicth-2's ge0/0/2 port role and state will transition to root and forwarding.
Question 3
Which two sequences correctly describe the processing order of firewall filters on an EX Series switch?
(Choose two.)
A. router filter > VLAN filter > port filter > transmit packet
B. port filter > VLAN filter > router filter > transmit packet
C. receive packet > port filter > VLAN filter > router filter
D. receive packet > router filter > VLAN filter > port filter
Question 4
What are two interarea OSPF LSA types? (Choose two.)
A. Type 2 network LSAs
B. Type 1 router LSAs
C. Type 4 ASBR summary LSAs
D. Type 3 summary LSAs
Question 5
Exhibit.
Your switches are managed using Junos Space Network Director. You want to secure the switches using a Network Director filter profile. A filter profile containing one term shown In the exhibit is deployed to ports on managed devices.
Which traffic will be accepted by the filter?
A. No traffic will be accepted.
B. All traffic will be accepted.
C. Traffic containing a destination MAC of 02:85:05:00:00:00/24 will be accepted.
D. Traffic containing a source MAC of 02:85:05:00:00:00/24 will be accepted.
Solutions:
| Question 1 Answer: B | Question 2 Answer: D | Question 3 Answer: B,D | Question 4 Answer: C,D | Question 5 Answer: D |


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