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Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) : JN0-348
- Exam Code: Juniper
- Exam Name: Enterprise Routing and Switching, Specialist (JNCIS-ENT)
- Updated: Oct 23, 2026
- Q & A: 95 Questions and Answers
About Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) : Juniper Exam
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Juniper JN0-348 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: BGP | 10% | - Policy implementation and troubleshooting - BGP attributes and path selection - IBGP and EBGP peering |
| Topic 2: OSPF | 15% | - OSPFv2 and OSPFv3 concepts - Configuration, monitoring, and troubleshooting - Areas, neighbors, and adjacencies |
| Topic 3: Layer 2 Switching and VLANs | 20% | - Inter-VLAN routing - VLAN configuration and operation - Ethernet switching concepts - Trunking and native VLAN |
| Topic 4: Protocol-Independent Routing | 10% | - Static and aggregate routes - Load balancing and filter-based forwarding - Routing policy and filters |
| Topic 5: IS-IS | 10% | - Basic configuration and verification - IS-IS routing hierarchy - Level 1 and Level 2 routing |
| Topic 6: IP Tunneling and High Availability | 10% | - Unified ISSU - Graceful Routing Engine Switchover (GRES) - Nonstop Active Routing (NSR) - GRE and IP-IP tunnels |
| Topic 7: Spanning Tree Protocols | 15% | - Port roles, states, and BPDU handling - Loop protection and configuration - STP, RSTP, MSTP concepts |
| Topic 8: Layer 2 Security | 10% | - DHCP snooping and ARP inspection - Port security and MAC limiting - BPDU protection and root protection - Storm control |
Common Questions About the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Exam
Registration for the JN0-348 exam goes through the official channels listed here:
Book a date once your practice results hold steady — a fixed exam day turns casual study into committed preparation.
The official outline groups the JN0-348 exam content into weighted domains, including:
- Protocol-Independent Routing (10%)
- Spanning Tree Protocols (15%)
- Layer 2 Switching and VLANs (20%)
The three versions of the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) materials at DumpsTests all follow this objective structure, so whichever format you study in, you are working on what the exam actually covers.
The JN0-348 exam contains 65 questions to be completed in 90 minutes minutes. Simulating that exact pressure in advance is straightforward: the PC test engine version of the DumpsTests materials recreates the real exam environment, so timed practice feels like the genuine article.
Yes. Privacy is a stated commitment, not a footnote: your address, email, and other personal details are never revealed to any other person or institution while you purchase or use the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) materials. Payment is processed by Credit Card through a secure channel, adding a second layer of protection to the transaction. And if anything ever feels unclear, our service staff is reachable by email anytime and replies promptly.
Recommended prerequisite: JNCIA-Junos certification (JN0-104 or equivalent knowledge)
The JN0-348 exam is the official test behind the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) certification from Juniper. It verifies that you can apply the published exam objectives in practical scenarios, and the credential signals to employers that your skills have been measured against an industry-recognized standard — useful whether you are an office worker aiming at promotion or a student building a foundation.
Three versions, designed for different study habits. The PDF version is easy to read and print, ideal for annotating on paper. The SOFT version is a PC test engine that simulates the real JN0-348 exam environment, helping you adapt to exam mode before the day arrives. The APP version is an online test engine that supports any electronic equipment — phone, tablet, or computer — so you can review on the subway or anywhere else. All three contain the same 95 practice questions for the JN0-348 exam with expert-verified answers.
You need Variable scaled score (typically ~65-70%) to pass, and the exam fee is $200 USD. Treating the fee as a one-time investment is a good mindset: steady timed practice until your scores sit comfortably above the passing line is far cheaper than a retake.
Yes, the following official training options are listed for JN0-348 exam candidates:
Official courses build the knowledge base; the three practice versions from DumpsTests build the exam-day fluency. Most candidates benefit from both.
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
Question #1
Click the Exhibit button.
You want to prevent rogue BPDUs from lab devices reaching the internal through the Lab_Switch device.
Referring to the exhibit, what should be done to accomplish this task?
- A. Configure the three lab ports under the protocols layer2-control bpdu-block hierarchy on the switch
- B. Configure an input filter on interface xe-0/2/0 to discard the RSTP packets
- C. Configure the three lab ports as edge ports
- D. Configure protocols rstp with the bpdu-block-on-edge parameter for interface xe-0/2/0
Correct Answer: A 🗳️
Question #2
Which statement is true when using LAGs with an EX4300?
- A. Half duplex is supported on the LAG.
- B. Speeds on member links can differ.
- C. You can have up to 16 member links per LAG.
- D. Member links must be contiguous.
Correct Answer: C 🗳️
Question #3
Which statement about configuring persistent MAC learning is correct?
- A. Persistent MAC learning flushes dynamically learned MAC addresses on reboots.
- B. Persistent MAC learning requires 802.1 X authentication.
- C. Persistent MAC learning cannot be configured on redundant trunk groups.
- D. Persistent MAC learning can be configured on access mode interfaces.
Correct Answer: D 🗳️
Question #4
Exhibit.
In the exhibit, each IP subnet in the network is associated with a unique VLAN ID.
Which action will ensure that Host C will communicate with Host A and Host B?
- A. Configure a port-based ACL that permits inter-VLAN routing for all configured VLANs.
- B. Configure all switch ports connecting to the host devices as trunk ports associated with all VLANs
- C. Configure an IRB interface for each VLAN and associate It with its corresponding VLAN.
- D. Configure all switch ports connecting to the host devices as access ports associated with a common VLAN.
Correct Answer: C 🗳️
Question #5
What are two advantages of a point-to-point OSPF adjacency? (Choose two.)
- A. No type 1 LSAs are generated.
- B. Only a DR is elected.
- C. No Type 2 LSAs are generated.
- D. There are quicker neighbor establishment.
Correct Answer: C,D 🗳️
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