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Juniper JN0-349 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | JNCIS-ENT Enterprise Routing and Switching Specialist Exam |
| Exam Number: | JN0-349 |
| Exam Format: | Scenario-based questions, Multiple choice |
| Real Exam Qty: | Approximately 65 (varies) |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Related Certifications: | JNCIP-ENT JNCIE-ENT JNCIS-ENT JNCIA-Junos |
| Exam Price: | USD 300 (approx., varies by region) |
| Passing Score: | Variable (scaled scoring; typically not publicly fixed) |
| Recommended Training: | Juniper Open Learning Juniper Enterprise Routing and Switching Training |
| Exam Registration: | Juniper Certification Portal |
| Sample Questions: |  |
| Exam Way: | Online proctored or authorized testing center (Pearson VUE) |
| Pre Condition: | Recommended prerequisite: JNCIA-Junos certification or equivalent networking knowledge |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification.html |
Juniper JN0-349 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Enterprise Routing Fundamentals | - Route preferences and route selection - Routing tables and forwarding concepts - Junos OS routing architecture |
| Layer 2 Switching | - VLAN configuration and trunking - Switching troubleshooting - Spanning Tree Protocol (STP/RSTP/MSTP) |
| OSPF and IS-IS | - OSPF area types and configuration - LSA types and OSPF troubleshooting - IS-IS fundamentals and configuration |
| Enterprise Network Services and Troubleshooting | - Network troubleshooting methodologies - Monitoring and verification commands in Junos |
| BGP and Routing Policy | - Route policies and filtering - Route redistribution and path control - BGP session establishment and attributes |
Common Questions About the Juniper JN0-349 Exam
The JN0-349 exam, officially known as Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT), is the Juniper test that leads to the Juniper Networks Certified Specialist Enterprise Routing & Switching (JNCIS-ENT) certification at the Specialist level. Passing it validates the skills employers expect from a certified professional. It is also associated with related credentials such as JNCIA-Junos, JNCIS-ENT, JNCIP-ENT, JNCIE-ENT.
The JN0-349 exam contains Approximately 65 (varies) questions, and you have 90 minutes to complete them. Work out your per-question pace before test day, and flag slow items instead of stalling on them — time pressure, not knowledge, sinks many first attempts. Timed mock exams in the Actual4Exams test engines are the most reliable way to build that rhythm.
The passing score for the JN0-349 exam is Variable (scaled scoring; typically not publicly fixed), and the official registration fee is USD 300 (approx., varies by region). If you miss the mark, a retake means paying the full fee again, so book your seat only when you are ready. A practical benchmark: score consistently above the passing line on timed practice tests before scheduling the real exam.
Recommended prerequisite: JNCIA-Junos certification or equivalent networking knowledge
Entry requirements can change, so confirm the latest conditions on the official exam page: https://www.juniper.net/us/en/training/certification.html.
You can book the JN0-349 exam through the official registration channels below:
Exam delivery: Online proctored or authorized testing center (Pearson VUE). Seats at popular test centers fill quickly, so schedule early once your preparation is on track.
Juniper recommends the following training options for Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) candidates:
Pair any course with the 112 practice questions from Actual4Exams to measure how ready you really are before paying the exam fee.
Yes. A free PDF demo of the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) questions is available, so you can check the question style and answer quality before you pay. Every purchase also includes 365 days of free updates, and if the product expires you can renew the update service at a 50% discount from your member zone.
If you take the corresponding JN0-349 exam within 60 days of purchase and do not pass, you can apply for a full refund under the 100% Money Back Guarantee: submit a scan of your enrollment slip and your official Score Report (PDF) within 2 days of the exam date, and the claim is processed within 7 days. Attempts made within 3 days of purchase, downloads without an actual exam attempt, free materials, and expired orders are not eligible, and the candidate name must match the payer name. Prefer new material instead of a refund? You can exchange your purchase for two free products of equal value and keep the update service on your original product. As for delivery, the files are available for instant download and are also emailed to you within one minute of payment — if nothing arrives within 2 hours, contact customer service. There is no limit on how many computers you can install the product on.
The official Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) outline is organized into 5 domains. The first three are:
- BGP and Routing Policy
- Enterprise Network Services and Troubleshooting
- Enterprise Routing Fundamentals
See the complete exam topics section above for the full outline and the weighting of every domain.
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
Question 1
Exhibit:
You have an ESXi host that is connected to ge-0/0/23 on a Juniper EX Series switch. You added a new VM that will also use the same ge-0/0/23 interface. Unfortunately, the new VM is not able to reach external devices.
Referring to the exhibit, which command would solve this problem?
A. clear ethernet-switching recovery-timeout interface ge-0/0/23.0
B. set vlans default switch-options interface-mac-limit 5
C. set switch-options interface ge-0/0/23.0 interface-mac-limit 3
D. set vlans default switch-options interface-mac-limit 4
Question 2
You have an IBGP neighbor sending you routes. You need to apply a policy so it only evaluates routes being learned from this specific neighbor.
In this scenario, which statement is correct about applying the policy?
A. The policy should be applied as an export policy to the BGP group level.
B. The policy should be applied as an export policy to the BGP neighbor level.
C. The policy should be applied as an import policy to the BGP group level.
D. The policy should be applied as an import policy to the BGP neighbor level.
Question 3
What are two Layer 2 firewall filter types? (Choose two.)
A. port-based
B. VLAN-based
C. packet-based
D. flow-based
Question 4
You do not want any spanning tree protocols operating in your environment, and you want to ensure that no BPDUs can be introduced into the environment.
Which statement is true in this scenario?
A. Incoming BPDUs can only be blocked by the root bridge.
B. You must run a spanning tree protocol to block BPDUs.
C. Incoming BPDUs are blocked by default if a spanning tree protocol is not operating.
D. You can block BPDUs without running a spanning tree protocol using Layer 3 control.
Question 5
Routet-1 and Router-2 must connect through the Internet using a tunneling technology. Hosts that are connected to Router-1 and Router-2 will be sending traffic up to 1500 bytes. The maximum segment size that is supported across the path is 1520 bytes.
Which tunneling technology will allow this communication to take place?
A. GRE tunnel
B. IPsec VPN transport mode
C. IP-IP tunnel
D. IPsec VPN tunnel mode
Solutions:
| Question 1 Answer: C | Question 2 Answer: D | Question 3 Answer: A,B | Question 4 Answer: D | Question 5 Answer: C |
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