Among the certifications recruiters actually recognize, Juniper credentials rank near the top. The Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) is how you earn one, and Prep4SureReview equips you with JN0-351 practice questions matched to the official objectives.
Juniper JN0-351 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Tunnels | - IP-IP, GRE, IPsec tunnels - Configuration, monitoring and troubleshooting |
| Topic 2: IS-IS | - IS-IS concepts, levels, routing information - Configuration, monitoring and troubleshooting |
| Topic 3: Protocol Independent Routing | - Routing policy and firewall filters - Static routes, aggregate routes - Routing tables, routing preferences - Configuration, monitoring and troubleshooting |
| Topic 4: Layer 2 Switching and VLANs | - Inter-VLAN routing - VLAN concepts, tagging, ports, native VLAN - Configuration, monitoring and troubleshooting - Layer 2 switching concepts and operation |
| Topic 5: Layer 2 Security | - Dynamic ARP inspection, DHCP snooping - Layer 2 firewall filters - Port security, storm control, MAC limiting - Configuration, monitoring and troubleshooting |
| Topic 6: BGP | - IBGP, EBGP, route policies - Configuration, monitoring and troubleshooting - BGP concepts, attributes, path selection |
| Topic 7: OSPF | - OSPFv2/v3 concepts, areas, LSA types - Neighbor relationships, route calculation - Configuration, monitoring and troubleshooting |
| Topic 8: Spanning Tree Protocol | - Root bridge, port roles and states - STP, RSTP, MSTP concepts and operation - Configuration, monitoring and troubleshooting |
| Topic 9: High Availability | - Virtual Chassis, redundant routing engines - Graceful restart, nonstop active routing - Configuration, monitoring and troubleshooting |
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) FAQs: Straight Answers
Delivery takes seconds to minutes: payment clears, download links go live, and an email copy arrives almost immediately — install on as many computers as you need, and contact support if 2 hours pass with nothing. For the what-if: take the corresponding JN0-351 exam within 60 days of purchase, and if you fail, apply for a full refund by submitting a scanned enrollment slip and your official Score Report PDF within 2 days of the exam — we process it within 7 days. Conditions: exams taken within 3 days of purchase don't qualify, the candidate's name must match the payer's, and free or expired products are excluded. Or exchange for two equal-value exam products free and keep the updates.
Through the vendor's official registration channels:
The exam runs Online proctored or onsite testing center (Pearson VUE), so pick the setup that suits you when booking.
The Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) is the official Juniper exam behind the Enterprise Routing and Switching, Specialist (JNCIS-ENT) certification at the Specialist level. It's how the vendor verifies that your skills meet its standard — and how employers know they do. Related credentials include JNCIA-Junos, JNCIP-ENT, JNCIE-ENT, useful context if you're mapping a longer certification path.
65 questions, 90 minutes on the clock. That ratio is the real exam-within-the-exam: budget your time per question, learn to flag and move on, and rehearse in the Prep4SureReview engine under real timing until finishing comfortably becomes your default.
The vendor recommends the following:
No time for scheduled classes? You're not alone — most of our customers are working IT professionals. The JN0-351 practice questions from Prep4SureReview deliver the self-paced alternative, ready whenever your calendar is.
The Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) blueprint divides into 9 domains, with High Availability, Spanning Tree Protocol, Protocol Independent Routing among the headline areas. Let the weightings steer your hours — they tell you where the questions concentrate. The full outline above shows every subtopic.
Registration costs $200 USD, and passing requires Not publicly disclosed (approx. 65%-70%). Credit card is the standard, secure way to pay — and note the fee applies per attempt, so a retake costs full price again. Practicing with the 192 questions from Prep4SureReview until your mock scores clear the bar comfortably is the cheaper insurance.
Valid JNCIA-Junos certification Vendor policies evolve, so before booking, confirm the latest eligibility details on the official exam page (official JN0-351 exam information).
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Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
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, disable Level 2 on the ge-0/0/1 interface.
- B. On R1, enable Level 1 on the ge-0/0/1 interface.
- C. On R3 disable Level 2 on the ge-0/0/4 interface.
- D. On R3 enable Level 1 on the ge-0/0/4 interface
Correct Answer: B,D 🗳️
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You want to redistribute the static routes into BGP, but they do not show as BGP routes.
What causes this result to occur?
- A. A community string must be configured.
- B. The static routes do not have a valid next hop.
- C. The no-readvertisefeature is specified.
- D. The as-pathparameter must be specified.
Correct Answer: B 🗳️
Which two statements are true about an EX2300 device? (Choose two.)
- A. By default, trunk ports can carry untagged traffic.
- B. By default, all switch ports are access ports.
- C. By default, all switch ports are associated with the default VLAN.
- D. By default, all switch ports are trunk ports.
Correct Answer: B,C 🗳️
You have configured OSPF routing as shown in the exhibit. You notice that all interfaces have formed full adjacencies, with the exception of the interfaces connecting R3 and R4 with a status of 2Way.
What is the reason for this status?
- A. DROther routers will not form a full adjacency with each other.
- B. The two routers must be configured in different areas.
- C. The interface-type is not configured as p2p.
- D. The two routers must both be configured as DR routers.
Correct Answer: A 🗳️
Which two statements about DHCP snooping are correct? (Choose two.)
- A. The DHCP database maps IP addresses, MAC addresses, and the associated VLAN.
- B. By default, the Junos OS treats access ports as trusted and trunk ports as untrusted.
- C. DHCP snooping inspects all DHCP packets on untrusted ports.
- D. DHCP snooping uses ARP to add statically defined IP addresses to its database.
Correct Answer: A,C 🗳️
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