Juniper Enterprise Routing and Switching, Specialist (JN0-352) Exam Questions
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To prepare effectively, focus on the latest Juniper JN0-352 exam objectives and use reliable study resources updated on 31 Aug, 2026. Reviewing relevant topics, practicing exam-style questions, and identifying areas that need improvement can make your preparation more structured and productive. A consistent study approach can help you understand the Enterprise Routing and Switching, Specialist requirements while preparing you for the actual JN0-352 exam. By combining knowledge with regular practice, you can work toward certification success and create a stronger foundation for long-term professional growth.
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Juniper JN0-352 Exam Domains
Juniper JN0-352 Exam Details (Official)
| Vendor | Juniper |
| Exam Code | JN0-352 |
| Exam Name | Enterprise Routing and Switching, Specialist |
| Certification | Juniper Data Center Certification |
| Expected Questions in Actual Exam | 65 |
| Exam Duration | 90 Minutes |
Juniper Enterprise Routing and Switching, Specialist Exam Objectives
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1
1.0 Layer 2 Switching or VLANs
- 1.1Identify the concepts, operations, or functionalities of Layer 2 switching for the Junos OS:
- 1.2Bridging components
- 1.3Frame processing
- 1.4Describe the concepts, benefits, or functionalities of VLANs:
- 1.5Ports
- 1.6Tagging
- 1.7Native VLANs and voice VLANs
- 1.8Inter-VLAN routing
- 1.9Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 switching or VLANs:
- 1.10Interfaces and ports
- 1.11VLANs
- 1.12Inter-VLAN routing
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2
2.0 Spanning Tree
- 2.1Describe the concepts, benefits, operations, or functionalities of the Spanning Tree Protocol (STP):
- 2.2STP and Rapid Spanning Tree Protocol (RSTP) concepts
- 2.3Port roles and states
- 2.4Bridge Protocol Data Units (BPDUs)
- 2.5Convergence and reconvergence
- 2.6Demonstrate knowledge how to configure, monitor, or troubleshoot Spanning Tree:
- 2.7STP
- 2.8RSTP
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3
3.0 Layer 2 Security
- 3.1Identify the concepts, benefits, or operations of various Layer 2 protection or security features:
- 3.2BPDU, loop or root protection
- 3.3Port security, including MAC limiting, DHCP snooping, Dynamic ARP inspection (DAI) or IP source guard
- 3.4MACsec
- 3.5Storm control
- 3.6Identify the concepts, benefits, or operations of Layer 2 firewall filters:
- 3.7Filter types
- 3.8Processing order
- 3.9Match criteria and actions
- 3.10Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security:
- 3.11Protection
- 3.12Port security
- 3.13Storm control
- 3.14Firewall filter configuration and application
-
4
4.0 Protocol Independent Routing
- 4.1Identify the concepts, operations, or functionalities of various protocol-independent routing components:
- 4.2Static, aggregate, and generated routes
- 4.3Martian addresses
- 4.4Routing instances, including routing information base (RIB) groups
- 4.5Load balancing
- 4.6Filter-based forwarding
- 4.7Demonstrate knowledge how to configure, monitor, or troubleshoot various protocol-independent routing components:
- 4.8Static, aggregate, and generated routes
- 4.9Load balancing
- 4.10Filter-based forwarding
-
5
5.0 OSPF
- 5.1Describe the concepts, operations, or functionalities of OSPF:
- 5.2Link-state database
- 5.3OSPF packet types
- 5.4Router ID
- 5.5Adjacencies and neighbors
- 5.6Designated router (DR) and backup designated router (BDR)
- 5.7OSPF area and router types
- 5.8Realms
- 5.9Link-state advertisement (LSA) packet types
- 5.10Demonstrate knowledge how to configure, monitor, or troubleshoot OSPF:
- 5.11Areas, interfaces, and neighbors
- 5.12Additional basic options
- 5.13Routing policy application
- 5.14Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
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6
6.0 IS-IS
- 6.1Describe the concepts, operations, or functionalities of IS-IS:
- 6.2Link-state database
- 6.3IS-IS Protocol Data Units (PDUs)
- 6.4Type, length, and values (TLVs)
- 6.5Adjacencies and neighbors
- 6.6Levels and areas
- 6.7Designated intermediate system (DIS)
- 6.8Metrics
- 6.9Demonstrate knowledge of how to configure, monitor, or troubleshoot IS-IS:
- 6.10Levels, interfaces, and adjacencies
- 6.11Additional basic options
- 6.12Routing policy application
- 6.13Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
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7
7.0 BGP
- 7.1Describe the concepts, operations, or functionalities of BGP:
- 7.2BGP basic operation
- 7.3BGP message types
- 7.4Attributes
- 7.5Route/path selection process
- 7.6Internal and external BGP (IBGP and EBGP) functionality and interaction
- 7.7Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP:
- 7.8Groups and peers
- 7.9Additional basic options
- 7.10Routing policy application
- 7.11Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
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8
8.0 Tunnels
- 8.1Identify the concepts, requirements, or functionalities of IP tunneling:
- 8.2Tunneling applications and considerations
- 8.3Generic Routing Encapsulation (GRE)
- 8.4IP-IP
- 8.5Demonstrate knowledge of how to configure, monitor, or troubleshoot IP tunnels:
- 8.6GRE
- 8.7IP-IP
- 8.8Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
-
9
9.0 High Availability
- 9.1Identify the concepts, benefits, applications, or requirements for high availability in a Junos OS environment:
- 9.2Link aggregation groups (LAG)
- 9.3Redundant trunk groups (RTG)
- 9.4Virtual chassis
- 9.5Graceful restart
- 9.6Graceful Routing Engine switchover (GRES)
- 9.7Nonstop active routing (NSR)
- 9.8Nonstop bridging (NSB)
- 9.9Bidirectional Forwarding Detection (BFD)
- 9.10Virtual Router Redundancy Protocol (VRRP)
- 9.11Unified In-Service Software Upgrade (ISSU)
- 9.12Demonstrate knowledge of how to configure, monitor, or troubleshoot high availability components:
- 9.13LAG and RTG
- 9.14Virtual chassis
- 9.15Graceful restart, GRES, NSB, and NSR
- 9.16VRRP
- 9.17ISSU
- 9.18Troubleshooting tools (traceoptions, show commands, logging)
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