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The best study tools keep improving, and so does TestKingFree. The JN0-351 bank of 192 practice questions for the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam is refined continuously based on exam changes and user feedback — and those improvements reach you free for a full year.
Juniper JN0-351 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: OSPF | - OSPF configuration and troubleshooting |
| Topic 2: Protocol Independent Routing | - Routing fundamentals |
| Topic 3: High Availability | - High availability design and integration - VRRP and redundancy protocols |
| Topic 4: BGP | - BGP configuration and troubleshooting |
| Topic 5: Layer 2 Security | - Common Layer 2 attack mitigation - Dynamic ARP inspection - Port security implementation - DHCP snooping |
| Topic 6: Tunnels | - Tunnel technologies |
| Topic 7: Spanning Tree Protocol | - STP topology design and troubleshooting - Convergence issues identification - Bridge priority and port cost optimization - Loop prevention and redundancy - Port roles interpretation |
| Topic 8: IS-IS | - IS-IS configuration and troubleshooting |
| Topic 9: Layer 2 Switching or VLANs | - Ports and tagging - Frame processing - Bridging components - Inter-VLAN routing - Configuration, monitoring, and troubleshooting - Native VLANs and voice VLANs - VLAN concepts and functionalities |
JN0-351 Exam: Your Questions Answered
Pearson VUE testing centers (In-person) Register for the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam through these official channels:
With your exam date confirmed, the 192 practice questions from TestKingFree — delivered by email within 1 minute — turn the waiting weeks into structured preparation.
Per the official outline, the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam spans 9 domains, led by Layer 2 Switching or VLANs, Spanning Tree Protocol, and Tunnels. The complete breakdown is in the topics section above; the 192 practice questions at TestKingFree cover all of it.
Passing the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam requires Not specified (Pass/Fail status available immediately), and the registration fee is $300 USD. Since retakes are not free, a readiness check with the TestKingFree practice engines is a sensible step before you commit to an exam date.
The JN0-351 exam is a Juniper certification exam covering the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) syllabus outlined above. It contributes to these credential paths: JNCIS-ENT. In a competitive market, a Juniper credential signals verified capability to employers — which is why candidates keep choosing it in 2026. TestKingFree prepares you with 192 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Then the written refund policy applies. If you take the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam within 60 days of purchase and do not pass, TestKingFree refunds you in full. The policy excludes exams taken within 3 days of purchase, exams never actually taken, free materials, and expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Prefer to keep going? Exchange for two free exam products of equal value and retain your original update service. Delivery is by email within 1 minute of purchase — contact support if nothing arrives within 2 hours.
Juniper recommends these training resources for the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam:
Pair official training with the 192 practice questions from TestKingFree to convert study time into exam readiness — especially effective when you are fitting preparation into fragmented hours.
Expect 65 in 90 minutes on the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam. The TestKingFree Desktop Test Engine reproduces this environment — real timing, exam-style flow — so the actual test day feels like a rehearsal you have already done.
Everything you need in one purchase: 192 practice questions for the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam across three formats — a printable, expert-prepared PDF with instant download; a Desktop Test Engine for Windows that simulates the real exam environment with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS, complete with test history and performance review. Also included: a free demo, 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
Recommended: JNCIA-Junos certification Requirements can be revised, so confirm the latest on the official Juniper exam page before booking.
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
You are concerned about spoofed MAC addresses on your LAN. Which two Layer 2 security features should you enable to minimize this concern? (Choose two.)
- A. static ARP
- B. dynamic ARP inspection
- C. DHCP snooping
- D. IP source guard
Correct Answer: B,C 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
Referring to the exhibit, which two configuration changes must you apply for packets to reach from R1 to R3 using IS-IS? (Choose two.)
- A. On R1, enable Level 1 on the ge-0/0/1 interface.
- B. On R3 enable Level 1 on the ge-0/0/4 interface
- C. On R3 disable Level 2 on the ge-0/0/4 interface.
- D. On R1, disable Level 2 on the ge-0/0/1 interface.
Correct Answer: A,B 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
Which command solves the error that you see in the exhibit?
- A. set ge-0/0/2 unit 0 family ethernet-switching vlan members all
- B. delete ge-0/0/2 unit 0 family ethernet-switching vlan members all
- C. set ge-0/0/2 unit 0 family ethernet-switching vlan members [default v11]
- D. delete ge-0/0/2 unit 0 family ethernet-switching vlan members default
Correct Answer: D 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
Which two statements about BGP facilitate the prevention of routing loops between two autonomous systems? (Choose two.)
- A. EBGP routers will append their AS number when advertising routes to their neighbors.
- B. EBGP routers will only accept routes that contain their own AS number in the AS_PATH.
- C. EBGP routers will drop routes that contain their own AS number in the AS_PATH
- D. EBGP routers will prepend their AS number when advertising routes to their neighbors
Correct Answer: A,C 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
Which statement is correct about graceful Routing Engine switchover (GRES)?
- A. The PFE restarts and the kernel and interface information is lost.
- B. With no other high availability features enabled, routing is preserved and the new master RE does not restart rpd.
- C. GRES has a helper mode and a restarting mode.
- D. When combined with NSR, routing is preserved and the new master RE does not restart rpd.
Correct Answer: D 🗳️
Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).
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