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Juniper JN0-351 : Enterprise Routing and Switching, Specialist (JNCIS-ENT)
- Exam Code: JN0-351
- Exam Name: Enterprise Routing and Switching, Specialist (JNCIS-ENT)
- Updated: Oct 16, 2026
- Q & A: 192 Questions and Answers
About Juniper JN0-351 Exam
Choosing study material is really a question of trust. With 192 verified practice questions, ongoing refinement, and 24/7 support, the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) package on VCETorrent gives JN0-351 candidates a straightforward, low-risk way to prepare.
Juniper JN0-351 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Enterprise Routing and Switching, Specialist (JNCIS-ENT) Exam |
| Exam Number: | JN0-351 |
| Exam Format: | Multiple Choice |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| Related Certifications: | JNCIE-ENT JNCIP-ENT JNCIA-Junos |
| Exam Price: | $200 USD |
| Real Exam Qty: | 65 |
| Exam Duration: | 90 minutes |
| Passing Score: | Not publicly disclosed (approx. 65%-70%) |
| Recommended Training: | Juniper Learning Portal |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: |  |
| Exam Way: | Online proctored or onsite testing center (Pearson VUE) |
| Pre Condition: | Valid JNCIA-Junos certification |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncis-ent.html |
Juniper JN0-351 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Protocol Independent Routing | - Static routes, aggregate routes - Routing tables, routing preferences - Routing policy and firewall filters - Configuration, monitoring and troubleshooting |
| Spanning Tree Protocol | - Configuration, monitoring and troubleshooting - STP, RSTP, MSTP concepts and operation - Root bridge, port roles and states |
| BGP | - Configuration, monitoring and troubleshooting - BGP concepts, attributes, path selection - IBGP, EBGP, route policies |
| Layer 2 Security | - Layer 2 firewall filters - Configuration, monitoring and troubleshooting - Port security, storm control, MAC limiting - Dynamic ARP inspection, DHCP snooping |
| High Availability | - Configuration, monitoring and troubleshooting - Graceful restart, nonstop active routing - Virtual Chassis, redundant routing engines |
| Tunnels | - Configuration, monitoring and troubleshooting - IP-IP, GRE, IPsec tunnels |
| OSPF | - OSPFv2/v3 concepts, areas, LSA types - Configuration, monitoring and troubleshooting - Neighbor relationships, route calculation |
| IS-IS | - Configuration, monitoring and troubleshooting - IS-IS concepts, levels, routing information |
| Layer 2 Switching and VLANs | - Layer 2 switching concepts and operation - Inter-VLAN routing - Configuration, monitoring and troubleshooting - VLAN concepts, tagging, ports, native VLAN |
Before You Buy: Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) FAQ
The JN0-351 exam contains 65 questions to be answered within 90 minutes minutes. Rehearsing with a timer on VCETorrent trains you to pace each question instead of rushing at the end.
Valid JNCIA-Junos certification
The Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) material is developed by a dedicated research team whose members bring rich hands-on IT experience, including past work for international IT corporations. That background shapes both the questions and the way they are organized for study.
Each Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) question is drawn from a large body of technical knowledge and analyzed before it enters the bank. Questions that are no longer relevant to the current exam are removed, while new material is added as the exam evolves, so the set you study stays lean and current.
- Protocol Independent Routing ()
- Layer 2 Security ()
- Spanning Tree Protocol ()
Begin with the topics where your confidence is lowest, then confirm the rest.
The passing score for JN0-351 is Not publicly disclosed (approx. 65%-70%), and the official exam fee is $200 USD. Fixing these numbers in mind helps you plan both your study target and your budget.
The package includes 192 practice questions for the JN0-351 exam, covering the current Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) objectives with verified answers.
Juniper Learning Portal: Visit official page
Pearson VUE Registration: register for JN0-351
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
Question #1
Which statement is correct about Junos OS VLAN tagging using the 802.1Q standard?
- A. 802.1Q is a Layer 3 protocol used for inter-VLAN routing.
- B. 802.1Q inserts a 4-byte tag into the Ethernet frame to identify VLAN membership.
- C. 802.1Q tagging removes the need for a native VLAN on trunk ports.
- D. 802.1Q tagging is only supported on point-to-point links.
Correct Answer: B 🗳️
Explanation: Only visible for VCETorrent members. You can sign-up / login (it's free).
Question #2
Which two statements are correct about Integrated Routing and Bridging (IRB) interfaces in Junos OS? (Choose two.)
- A. An IRB interface provides Layer 3 routing capability for a VLAN.
- B. Multiple VLANs can each be associated with their own IRB interface for inter-VLAN routing.
- C. IRB interfaces are only supported on routers, not switches.
- D. An IRB interface cannot be assigned an IP address.
Correct Answer: A,B 🗳️
Explanation: Only visible for VCETorrent members. You can sign-up / login (it's free).
Question #3
Which statement is correct regarding OSPF designated router (DR) election on a multi-access network?
- A. The DR is manually configured and cannot be influenced by priority.
- B. DR election only occurs on point-to-point networks.
- C. The DR election is based on the highest interface priority, with the router ID used as a tiebreaker.
- D. The router with the lowest router ID is always elected DR.
Correct Answer: C 🗳️
Explanation: Only visible for VCETorrent members. You can sign-up / login (it's free).
Question #4
Which statement is correct regarding link aggregation groups (LAGs) in Junos OS?
- A. LAGs cannot carry tagged VLAN traffic.
- B. A LAG combines multiple physical links into a single logical interface to increase bandwidth and provide redundancy.
- C. LAG member links must be on different switches without any additional protocol.
- D. LACP is mandatory for all LAG configurations.
Correct Answer: B 🗳️
Explanation: Only visible for VCETorrent members. You can sign-up / login (it's free).
Question #5
Which two statements about redundant trunk groups on EX Series switches are correct? (Choose two.)
- A. Redundant trunk groups load-balance traffic across two designated uplink interfaces.
- B. Layer 2 control traffic is permitted on the secondary link
- C. If the active link fails, then the secondary link automatically takes over.
- D. Redundant trunk groups must be connected to the same aggregation switch.
Correct Answer: B,C 🗳️
Explanation: Only visible for VCETorrent members. You can sign-up / login (it's free).
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