JN0-352 Dumps V8.02: Latest Exam Questions for Juniper JNCIS-ENT Certification Preparation

Are you prepareing for your Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) certification exam in 2026? DumpsBase offers the JN0-352 dumps V8.02 with 65 practice questions and answers, help you complete the certification preparation. These Q&As covers essential concepts in enterprise routing and switching. With these reliable JN0-352 questions and answers, you can build a strong foundation and approach exam day with greater confidence.

When Did JN0-352 Exam Become Effective for Enterprise Routing and Switching Certification Track?

Juniper announced that the JN0-352 exam becomes effective on June 8, 2026, being a specialist level exam for the enterprise routing and switching certification track. It verifies your understanding of routing and switching technologies, platform configuration, and troubleshooting skills. The core objectives tested include:

• Layer 2 Switching and VLANs
• Spanning Tree Protocol (STP and RSTP)
• Layer 2 Security (Port security, storm control, firewall filters)
• Protocol Independent Routing (Static routing, load balancing, etc.)
• OSPF and IS-IS Routing Protocols
• BGP (Internal and External)
• IP Tunnels (GRE, IP-IP)
• High Availability (LAG, Virtual Chassis, Graceful Restart, VRRP, etc.)

Visit DumpsBase and choose the latest JN0-352 dumps (V8.02) to prepare for your Juniper JNCIS-ENT exam. Those questions and answers will help you learn the core objective, evaluate progress, reinforce learning, and develop the confidence needed for certification success.

Preview JN0-352 Dumps (V8.02) by Reading Free Demo Questions

We have free demo questions online to help you preview the JN0-352 dumps (V8.02). We have 20 free questions here, covering key JNCIS-ENT topics such as Layer 2 switching, VLANs, STP, LAG, routing protocols (OSPF, IS-IS, BGP), GRE tunnels, and high availability. They help you review practical Junos scenarios like inter-VLAN routing, protocol adjacencies, BGP behavior, and LAG failures. Overall, they are useful for assessing readiness for the JN0-352 exam.

1. How does BGP prevent routing loops between internal peers?

It uses a logical full mesh.

It uses AS path.

It uses BF

It uses VRR

2. Two Juniper Networks EX Series Switches are connected with four 1-GbE links configured as a single link aggregation group (LAG). One of the physical member links experiences a failure.

By default, what impact will this failure have on traffic forwarding between the switches?

The LAG continues forwarding traffic across the remaining member links.

Only broadcast traffic continues to be forwarded across the LA

The LAG renegotiates and temporarily disables all member links.

All traffic will be dropped because the LAG goes administratively down.

3. Which sequence correctly describes the basic message flow that leads to a successful BGP peering session?

Connect -> Active -> Idle -> OpenConfirm -> OpenSent -> Established

Idle -> Connect -> OpenConfirm -> OpenSent -> Active -> Established

Idle -> Connect -> Active -> OpenSent -> OpenConfirm -> Established

Connect -> Active -> Idle -> OpenSent -> OpenConfirm -> Established

4. You are required to ensure that Switch1 will always be designated as the root bridge when participating in your switched network.

What do you need to do to satisfy this requirement?

Ensure Switch1 has the lowest bridge priority of all the other switches.

Ensure Switch1 has the highest system MAC address.

Ensure Switch1 has the highest port costs of all the other switches.

Ensure Switch1 has the lowest port priority of all other switches.

5. Click the Exhibit button.


You are troubleshooting an aggregated Ethernet interface on a Juniper Networks EX Series Switch. The aggregated Ethernet interface does not appear in the output shown in the exhibit.

Which action will solve this problem?

Configure LACP passive-mode.

Restart the switch to enable the aggregated Ethernet switching process.

Configure the number of aggregated Ethernet devices under the [edit chassis] hierarchy.

Install the aggregated Ethernet interface license on the switch.

6. You implement FBF on router R1 so that traffic from subnet 172.25.0.0/24 uses ISP-A and traffic from subnet 172.25.1.0/24 uses ISP-B. You create forwarding instances for ISP-A and ISP-B. You also configure static default routes inside each instance. However, the static default routes remain inactive.

In this scenario, which action would complete the FBF implementation?

Configure an RIB group that includes the routing instances and inet.0.

Increase the route preference of the static routes.

Apply a firewall filter under the firewall, but not to any interface.

Change the instance type to virtual router.

7. Click the Exhibit button.





An internal BGP (IBGP) router learns a route from an external BGP (EBGP) neighbor. The IBGP router advertises this route to another IBGP neighbor as shown in the exhibit.

By default, what happens to the next-hop attribute when this route is advertised to the second IBGP neighbor?

The next-hop value changes to the advertising router’s address.

The next-hop value stays the same as the original external next hop.

The next-hop value is removed before advertisement.

The next-hop value changes to the receiving router’s address.

8. Which two statements are correct about BGP local preference? (Choose two.)

Local preference is advertised to EBGP peers.

A local preference of 100 is the Junos default.

A local preference of 0 means to drop the route.

Local preference is used to direct outbound traffic within an AS to a specific peer.

9. Click the Exhibit button.





You run the show ospf database command and you see a Router LSA marked with an asterisk.

Referring to the exhibit, what is the significance of this result?

The LSA is advertised by the backup designated router.

The LSA is advertised by the designated router.

The LSA is advertised by a remote device.

The LSA is advertised by the local device.

10. A host connected to interface ge-0/0/3 on your Juniper Networks EX Series Switch cannot reach another device in the same VLAN. The administrator wants to confirm that the switch has learned the MAC address of the host.

Which command should be used to accomplish this task?

show interfaces terse

show interfaces extensive

show vlans

show ethernet-switching table

11. What is the purpose of the native VLAN feature on the Juniper Networks EX Series Switches?

It enables a trunk port to accept and forward untagged traffic.

It restricts traffic on a trunk port to traffic that matches the configured native-vlan-id.

It assigns a specific VLAN tag to all access ports that do not have a specific VLAN assigned.

It enables an access port to accept and forward untagged traffic without a tag assigned.

12. Which two statements describe the purpose of a BGP notification message? (Choose two.)

It reports the specific reason why the session must end.

It updates route attributes and keeps the session active.

It refreshes the neighbor’s routing table without resetting the session.

It ends the BGP session when a fatal error is detected.

13. Click the Exhibit button.





You have three Juniper Networks EX Series Switches in an STP domain as shown in the exhibit.

Which statement describes the switch that will be elected as the root bridge?

EX-2, because its priority is the lowest.

EX-2, because its MAC address is the lowest.

EX-1, because its MAC address is highest.

EX-1, because its priority is the highest.

14. A GRE tunnel is experiencing fragmentation issues. You confirm that the tunnel is up and is functioning correctly. You confirm that hosts are sending 1500-byte packets. In this scenario, which statement is correct?

You should enable BFD to more rapidly identify tunnel link failures.

You should lower the physical interface's MTU to 1476 bytes to avoid fragmentation.

You should use ToS copying to reduce header size.

You should use the ciear-dont-fragment parameter to allow fragmentation.

15. Which statement describes how Rapid Spanning Tree Protocol (RSTP) identifies an alternate port?

An alternate port is the upstream port that is not receiving BPDUs from the root bridge.

An alternate port is the upstream port that provides a backup path to the root bridge and stays in the discarding state.

An alternate port is the upstream port that forwards traffic only when the designated port is overloaded.

An alternate port is the upstream port that provides the least-cost path to the root bridge.

16. Which two fields must match in an OSPF hello packet to form an adjacency over a broadcast link? (Choose two.)

network mask

dead interval

router priority

designated router

17. Click the Exhibit button.





You configure the aggregate route 172.16.0.0/16 on router R1. The routing table currently contains active routes for 172.16.10.0/24 and 172.16.99.0/24. No other more-specific routes exist.

Referring to the exhibit, which statement describes what R1 would do with traffic destined to 172.16.200.5?

R1 forwards the packet to the default route.

R1 drops the packet and deactivates the aggregate route.

R1 forwards the packet using the next hop of the active contributing route.

R1 drops the packet and sends an ICMP unreachable message.

18. Click the Exhibit button.





Which two statements about the IS-IS output shown in the exhibit are correct? (Choose two.)

The IS-IS adjacency with R5 requires authentication.

These IS-IS neighbors have the IPv6 address family disabled.

R3 is connected to two Level 1 IS-IS neighbors.

R3 is connected to the IS-IS backbone.

19. What are two characteristics of IS-IS? (Choose two.)

IS-IS routes use a default preference of 20.

IS-IS L1/L2 routers route traffic between areas.

IS-IS L1 routers route traffic between areas.

IS-IS is an interior gateway protocol.

20. Click the Exhibit button.





Devices on VLAN 5 and VLAN 7 need to communicate with each other.

Referring to the exhibit, what will satisfy this requirement?

Configure a family inet interface connecting the two VLANs and assign both subnet IPs to it using secondary addressing.

Create an integrated routing and bridging (IRB) interface for each VLAN, assign the gateway IP to each IRB, and enable static routing.

Add both VLANs to a single trunk port and enable the Multiple VLAN Registration Protocol.

Enable spanning tree on both VLANs and set the EX Series Switch as the root bridge.

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