Juniper JN0-352 - Enterprise Routing and Switching, Specialist (JNCIS-ENT)
- Exam Code: JN0-352
- Exam Name: Enterprise Routing and Switching, Specialist (JNCIS-ENT)
- Updated: Sep 21, 2026
- Q & A: 213 Questions and Answers
JN0-352 Free Demo download
PDF Version DemoAbout Juniper JN0-352 Exam
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Juniper JN0-352 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Enterprise Routing and Switching, Specialist (JNCIS-ENT) |
| Exam Number: | JN0-352 |
| Real Exam Qty: | 65 |
| Available Languages: | English |
| Related Certifications: | JNCIE-ENT JNCIA-Junos JNCIP-ENT |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Exam Format: | Multiple choice |
| Sample Questions: |  |
| Exam Way: | Delivered by Pearson VUE (onsite or online proctored). |
| Pre Condition: | JNCIA-Junos certification recommended or required. |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncis-ent.html |
Juniper JN0-352 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| OSPF | - Link-state database and packet types - Areas and LSA types - Router ID, adjacencies and neighbors |
| Protocol-Independent Routing | - Static, aggregate, generated routes - Load balancing and filter-based forwarding - Martian addresses and RIB groups |
| Layer 2 Security | - Layer 2 firewall filters - MACsec and storm control - BPDU, loop and root protection - Port security (MAC limiting, DHCP snooping, DAI, IP source guard) |
| Tunnels | - IP tunneling concepts - GRE and IP-IP configuration and troubleshooting |
| High Availability | - Virtual chassis and graceful restart - VRRP, NSR, NSB and BFD - Link Aggregation Groups and RTG |
| BGP | - EBGP and IBGP peer interactions - BGP basic operations and message types - Attributes and path selection |
| Layer 2 Switching and VLANs | - Inter-VLAN routing - Ports and VLAN tagging - Bridging components - Frame processing - Native VLANs and voice VLANs |
| Spanning Tree | - Bridge Protocol Data Units (BPDUs) - Convergence and reconvergence - STP and RSTP concepts, roles and states |
| IS-IS | - Link-state database and PDUs - Adjacencies and troubleshooting - Levels, areas and metrics |
JN0-352 Exam Information, Without the Confusion
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The Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) blueprint covers these principal domains:
- Spanning Tree
- Layer 2 Security
- Layer 2 Switching and VLANs
The remaining domains appear in the full official outline, all of which our bank addresses.
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Juniper lists the following prerequisites for the Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT): JNCIA-Junos certification recommended or required..
Confirm the details on the official certification page before you book.
Per current exam information, the JN0-352 exam includes 65 questions and allows 90 minutes minutes. Timed practice beforehand makes the format feel routine on the day.
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Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
Question #1
Which statement about aggregate routes is correct?
- A. Aggregate routes are always preferred over more specific routes, even when the specific routes have a better path.
- B. Aggregate routes can only be used for static routing but not for dynamic routing protocols.
- C. Aggregate routes are automatically generated for all of the subnets in a routing table.
- D. Aggregate routes are used for advertising summarized network prefixes.
Correct Answer: D 🗳️
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Question #2
Which statement is correct about graceful Routing Engine switchover (GRES)?
- A. When combined with NSR, routing is preserved and the new master RE does not restart rpd.
- B. The PFE restarts and the kernel and interface information is lost.
- C. With no other high availability features enabled, routing is preserved and the new master RE does not restart rpd.
- D. GRES has a helper mode and a restarting mode.
Correct Answer: A 🗳️
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Question #3
You are asked to deploy nonstop active routing (NSR) on a dual-Routing Engine platform. In this scenario, what are two additional requirements for proper operation? (Choose two.)
- A. GRES must be enabled.
- B. Graceful restart must be enabled on all neighbors.
- C. All routing neighbors must support graceful restart extensions.
- D. Both Routing Engines must run the same Junos OS version.
Correct Answer: A,D 🗳️
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Question #4
What are three well-known mandatory BGP attributes? (Choose three.)
- A. community
- B. next hop
- C. local preference
- D. origin
- E. AS path
Correct Answer: B,D,E 🗳️
Question #5
You are receiving multiple BGP routes from an upstream neighbor and only want to advertise a single summarized prefix to your internal OSPF neighbors. This route should only be advertised when you are receiving these BGP routes from this neighbor.
In this scenario, which type of route should you create?
- A. generate route
- B. aggregate route
- C. static route using the resolve feature
- D. static route using qualified next hops
Correct Answer: A 🗳️
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