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Juniper JN0-343 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | JNCIS-ENT: Enterprise Routing and Switching Specialist Exam |
| Exam Number: | JN0-343 |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 60–65 (varies) |
| Exam Format: | Scenario-based Questions, Multiple Choice |
| Exam Duration: | 90 minutes |
| Passing Score: | Approximately 60–70% (Juniper does not publicly publish exact passing score) |
| Related Certifications: | JNCIS-ENT JNCIA-Junos JNCIP-ENT |
| Available Languages: | English |
| Exam Price: | USD 300–400 (varies by region) |
| Recommended Training: | Juniper Networks Official Training - Enterprise Routing and Switching |
| Exam Registration: | Pearson VUE Juniper Exams Juniper Certification Portal |
| Sample Questions: | ![]() |
| Exam Way: | Computer-based exam delivered via Pearson VUE (test center or online proctored) |
| Pre Condition: | Recommended: JNCIA-Junos certification or equivalent networking knowledge |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/certification-tracks/enterprise-routing-switching/ |
Juniper JN0-343 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Enterprise Network Technologies | - IPv6 implementation and routing - High availability and redundancy |
| Layer 2 Switching | - Ethernet switching concepts - Spanning Tree Protocol (STP/RSTP) - VLANs and trunking |
| Layer 3 Routing | - Routing policy and route filtering - OSPF fundamentals and configuration - BGP fundamentals - Static routing |
| Troubleshooting and Maintenance | - Network troubleshooting methodologies - Operational monitoring with Junos OS |
| Network Security and Services | - Basic firewall filters - Traffic control and monitoring |
Questions and Answers About Juniper Networks Certified Internet Specialist (JNCIS-ENT)
Juniper Networks Certified Internet Specialist (JNCIS-ENT) is an official Juniper Networks exam, listed under exam code JN0-343. A passing result earns you the Juniper Networks Certified Internet Specialist - Enterprise Routing and Switching (JNCIS-ENT) certification at the Professional level. It also ties into JNCIA-Junos, JNCIS-ENT, JNCIP-ENT, extending its value across your certification roadmap. Employers read this credential as verified competence, which is why it keeps appearing in job requirements.
Expect 60–65 (varies) questions inside 90 minutes on the Juniper Networks Certified Internet Specialist (JNCIS-ENT) exam. That pace punishes hesitation, so rehearse it: the ActualPDF software engine simulates the real exam scene, reminds you of the questions you got wrong, and pushes you to re-practice them until the clock stops being your enemy.
Passing Juniper Networks Certified Internet Specialist (JNCIS-ENT) requires Approximately 60–70% (Juniper does not publicly publish exact passing score), and the official registration fee is USD 300–400 (varies by region). Retakes charge the full USD 300–400 (varies by region) again, which is why experienced candidates treat preparation as the cheaper exam fee. Verify your readiness with repeated ActualPDF practice scores above the requirement before you commit to a date.
Recommended: JNCIA-Junos certification or equivalent networking knowledge
Requirements evolve, so confirm the current conditions before registering on the official exam page.
Registration for Juniper Networks Certified Internet Specialist (JNCIS-ENT) goes through the official channels listed here.
When you schedule, note that the exam is delivered Computer-based exam delivered via Pearson VUE (test center or online proctored).
Juniper Networks recommends the following training for Juniper Networks Certified Internet Specialist (JNCIS-ENT) candidates.
Follow any course with the 565 practice questions in the ActualPDF JN0-343 package; the software engine will even remind you which mistakes need another round.
Yes. ActualPDF provides a free download demo of the Juniper Networks Certified Internet Specialist (JNCIS-ENT) material, so you can check the content before choosing a version. After purchase, a one-year warranty covers you: the latest version is sent to you as it releases, free for 365 days, and after expiry you can extend the update service at a 50% discount.
Your purchase is covered by a 100% money-back guarantee with clear conditions. Take the Juniper Networks Certified Internet Specialist (JNCIS-ENT) exam within 60 days of purchase; if you fail, provide your unqualified result by submitting a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and the full refund is processed within 7 days. The exam must match your product, candidate and payer names must match, and attempts within 3 days of purchase, unused downloads, free materials, and expired orders are not covered. Alternatively, exchange for two other exam products of equal value, free, or wait for updates while keeping your original product's update service.
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The Juniper Networks Certified Internet Specialist (JNCIS-ENT) syllabus spans 5 domains, led by Enterprise Network Technologies, Layer 2 Switching, and Troubleshooting and Maintenance. The complete topic list is published above; candidates who study the map first rarely get lost later.
Juniper Networks Certified Internet Specialist (JNCIS-ENT) Sample Questions:
Question 1
NO: 223
With which type of IS-IS router can an IS-IS Level 1-only router form an adjacency?
A. any IS-IS Level 2 router of any area
B. any properly configured IS-IS router
C. any IS-IS Level 1 router of any area
D. any IS-IS Level 1 router of the same area
Question 2

In the exhibit, Areas 1.1.1.1 and 2.2.2.2 are configured as normal areas. R5 has an export policy that causes the RIP network prefixes to be announced through OSPF. Which three LSA types does R7 receive for the information advertised by R5? (Choose three.)
A. ASBRSum (Type 4)
B. Router (Type 1)
C. Network (Type 2)
D. Summary (Type 3)
E. Extern (Type 5)
Question 3
Referring to the exhibit, which type of route is displayed?
A. martian
B. generate
C. aggregate
D. static
Question 4
No user-defined configuration exists for the default VLAN. Which configuration is valid on EX Series switches?
A. {master:0}[edit interfaces ge-0/0/4]
user@ex# show
unit 0 {
family ethernet-switching {
port-mode access;
vlan {
members [ v4 default ];
}
}
}
B. {master:0}[edit interfaces ge-0/0/4]
user@ex# show
unit 0 {
family ethernet-switching {
port-mode access;
vlan {
members [ v4 Voice ]; } } }
C. {master:0}[edit interfaces ge-0/0/4]
user@ex# show
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [ v4 v3 ];
}
native-vlan-id default;
}
}
D. {master:0}[edit interfaces ge-0/0/4]
user@ex# show
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [ v4 default ];
}
}
}
Question 5
What is the correct sequence of OSPF adjacency formation?
A. Down, Init, ExStart, 2way, Loading, Exchange, Full
B. Down, Init, 2way, ExStart, Exchange, Loading, Full
C. Down, 2way, Init, ExStart, Exchange, Loading, Full
D. Down, Init, 2way, Loading, ExStart, Exchange, Full
Solutions:
| Question 1 Answer: D | Question 2 Answer: A,D,E | Question 3 Answer: C | Question 4 Answer: C | Question 5 Answer: B |
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