JUNIPER NETWORKSJuniper Networks Certified Professional, Enterprise Routing and Switching (JNCIP-ENT)
The Juniper Networks Certified Professional, Enterprise Routing and Switching (JNCIP-ENT) certification validates advanced knowledge of Junos OS for enterprise routing and switching platforms. Designed for experienced networking professionals, it covers advanced routing technologies, switching, multicast, and EVPN. Earning JNCIP-ENT demonstrates your ability to configure, troubleshoot, and monitor complex enterprise networks, positioning you as a skilled professional in the field.
799 practice questions · Updated 2026-07-30
8Domains
39Objectives
295Concepts
799Questions
JN0-650 Curriculum
Every domain, objective, and concept the JN0-650 exam measures.
- OSPFv2 Fundamentals
- OSPFv2 Packet Types
- OSPFv2 Neighbor and Adjacency States
- OSPFv2 Area Types and Router Roles
- OSPFv2 LSA Types
- OSPFv2 Path Selection and Metrics
- OSPFv2 Network Types
- OSPFv2 DR/BDR Election
- OSPFv2 Timers and Convergence
- OSPFv2 Authentication
- OSPFv2 Route Summarization
- OSPFv2 Virtual Links
- OSPFv2 Stub and NSSA Configuration
- OSPFv2 External Route Handling
- OSPFv2 Troubleshooting
- OSPFv3 Overview
- OSPFv3 Packet Types and LSAs
- OSPFv3 Neighbor Discovery and Adjacency Formation
- OSPFv3 Area Types and Router Types
- OSPFv3 Link-State Database and SPF Calculation
- OSPFv3 Route Summarization
- OSPFv3 Authentication and Security
- OSPFv3 Configuration and Verification
- OSPFv3 Troubleshooting
- Routing Policy Fundamentals
- Policy Match Conditions
- Policy Actions
- Policy Evaluation and Flow
- Applying Policies to Protocols
- Policy Chaining and Reuse
- Common Policy Use Cases
- IGP Configuration Fundamentals
- IGP Troubleshooting Methodology
- IGP Monitoring and Verification
- Scenario-Based IGP Design
- IGP Redistribution and Route Control
- IGP Convergence and Optimization
- IGP Security and Authentication
- BGP path attributes overview
- BGP route selection algorithm steps
- Local preference comparison
- AS path length comparison
- Origin type comparison
- MED comparison
- eBGP vs iBGP preference
- IGP metric comparison
- Router ID and tie-breaking
- Best route selection in practice
- BGP next hop resolution basics
- Next hop resolution for directly connected routes
- Next hop resolution for indirect routes
- Recursive next hop resolution
- Next hop self behavior
- Next hop handling for eBGP and iBGP
- Next hop resolution with multiple paths
- Next hop resolution and route preferences
- Next hop resolution failures and troubleshooting
- BGP attribute types
- AS path attribute
- Next hop attribute
- Origin attribute
- Local preference attribute
- MED attribute
- Community attribute
- Atomic aggregate and aggregator attributes
- Originator and cluster list attributes
- Attribute comparison in best-path selection
- BGP community attribute basics
- Well-known communities
- Community syntax and representation
- Configuring community lists
- Applying communities in routing policies
- Matching communities in policies
- Community operations and manipulation
- Propagation and scope of communities
- Troubleshooting community issues
- BGP multipath
- Multipath configuration
- BGP multihop
- Multihop and load balancing interaction
- Forwarding table and load balancing
- Verification of load balancing
- inet NLRI family
- inet6 NLRI family
- NLRI family configuration
- NLRI family verification
- Advanced BGP options overview
- BGP multipath
- BGP add-path
- BGP route reflection
- BGP confederations
- BGP communities
- BGP extended communities
- BGP local preference
- BGP MED
- BGP AS-path prepend
- BGP next-hop manipulation
- BGP route damping
- BGP graceful restart
- BGP fast reroute
- BGP session parameters
- BGP route filtering
- BGP route aggregation
- BGP route origin
- BGP weight
- BGP best path selection
- BGP routing policy fundamentals
- Policy evaluation order and default actions
- Policy terms and match conditions
- Policy actions: accept, reject, and next term
- Route attribute manipulation in policies
- Applying policies to BGP neighbors and groups
- Policy chaining and prefix lists
- AS path regular expressions
- Community matching and manipulation
- Policy testing and validation
- BGP configuration in scenario-based contexts
- BGP troubleshooting in scenario-based contexts
- BGP monitoring in scenario-based contexts
- Multicast addressing
- Multicast components
- IP multicast traffic flow
- ASM vs. SSM
- Reverse Path Forwarding (RPF)
- IGMP operation
- IGMP versions and interoperability
- IGMP snooping
- PIM sparse-mode basics
- Rendezvous point (RP) in PIM-SM
- RP discovery and redundancy
- Anycast RP
- MSDP operation
- MSDP peer establishment and SA messages
- Routing Policy for Multicast
- Multicast Scoping
- IGMP Configuration
- IGMP Monitoring
- PIM-SM Configuration
- PIM-SM Monitoring
- Filter-based VLAN overview
- VLAN membership via firewall filters
- Configuring filter-based VLANs
- Applying filters to interfaces
- Verifying filter-based VLAN operation
- Troubleshooting filter-based VLANs
- Private VLAN Overview
- Private VLAN Components
- Private VLAN Configuration
- Private VLAN Operation
- Private VLAN Verification
- MVRP overview
- MVRP vs GVRP
- MVRP messages and timers
- MVRP configuration
- MVRP operation and propagation
- MVRP and spanning tree interaction
- Troubleshooting MVRP
- Q-in-Q tunneling overview
- Q-in-Q frame format and tagging
- Q-in-Q configuration and interfaces
- Layer 2 Protocol Tunneling (L2PT) overview
- L2PT operation and protocol handling
- L2PT configuration and interfaces
- Troubleshooting Q-in-Q and L2PT
- MSTP Overview
- MSTP Regions and Configuration
- MSTP Instance Behavior
- VSTP Overview
- VSTP Configuration and Behavior
- MSTP and VSTP Interoperability
- Troubleshooting Advanced Spanning Tree
- Authentication process flow overview
- EAPOL and RADIUS message exchange
- Port states during authentication
- Role of the authentication server
- Reauthentication and session termination
- 802.1X Overview
- EAP Methods
- RADIUS Integration
- Port-Based Access Control
- Authentication Process Flow
- MAB (MAC Authentication Bypass)
- Guest VLAN and Dynamic VLAN Assignment
- Reauthentication and Session Termination
- MAC RADIUS Overview
- MAC RADIUS Configuration
- MAC RADIUS Authentication Process
- MAC RADIUS with 802.1X
- MAC RADIUS Fallback and Failover
- Troubleshooting MAC RADIUS
- Captive portal overview
- Captive portal configuration
- Captive portal authentication flow
- Captive portal with RADIUS
- Captive portal with local authentication
- Captive portal redirect and exemption
- Captive portal customization
- Captive portal troubleshooting
- Server fail fallback overview
- Fallback authentication methods
- Fallback to local authentication
- Fallback to captive portal
- Fallback to allow access
- Fallback to deny access
- Fallback trigger conditions
- Fallback timer and retry settings
- Fallback behavior for different access types
- Fallback and reauthentication
- Fallback configuration on Junos OS
- Troubleshooting server fail fallback
- Guest VLAN Purpose
- Guest VLAN Configuration
- Guest VLAN Operation with 802.1X
- Guest VLAN vs. Other VLANs
- Guest VLAN Security Considerations
- Guest VLAN Troubleshooting
- Multiple authentication methods overview
- Configuring multiple authentication methods
- Authentication method precedence
- Fallback and failover behavior
- RADIUS server integration for multiple methods
- Troubleshooting multiple authentication methods
- PoE Fundamentals
- PoE Budgeting and Power Allocation
- PoE Configuration on Juniper Devices
- PoE Monitoring and Troubleshooting
- LLDP Overview
- LLDP Configuration
- LLDP-MED Overview
- LLDP-MED Configuration
- LLDP and LLDP-MED Verification
- Voice VLAN Fundamentals
- Voice VLAN Configuration
- LLDP-MED Integration
- Voice VLAN Verification
- CoS processing stages
- Behavioral aggregate classifier
- Multifield classifier
- Fixed classifier
- Forwarding classes and queues
- Loss priority assignment
- Policing and shaping
- Scheduling and rewrite
- CoS header fields
- Forwarding classes
- Mapping header fields to forwarding classes
- Classification overview
- BA classification
- MF classification
- Forwarding classes and queues
- Packet loss priority (PLP)
- PLP marking and rewrite rules
- Classification configuration
- PLP configuration
- Policer types and configuration
- Policer actions and handling
- Scheduler concepts and configuration
- Scheduler maps and interface application
- Drop profile concepts and configuration
- Drop profile mapping and application
- CoS queue behavior and interaction
- Traffic shaping principles
- Shaping configuration
- Shaping versus policing
- Rewrite rule basics
- Rewrite rule configuration
- Rewrite rule application
- Shaping and rewrite interaction
- EVPN Route Type 1 (Ethernet Auto-Discovery)
- EVPN Route Type 2 (MAC/IP Advertisement)
- EVPN Route Type 3 (Inclusive Multicast Ethernet Tag)
- Route Type 1 Usage in Ethernet Segments
- Route Type 2 MAC Mobility and Duplicate Detection
- Route Type 3 and Multicast Group Management
- Comparison of Route Types 1, 2, and 3
- VXLAN Overview
- VXLAN Packet Encapsulation
- VTEP and VNI Concepts
- VXLAN Control Plane in EVPN
- VXLAN Data Plane Operation
- VXLAN with EVPN Signaling
- VXLAN Multihoming
- VXLAN Inter-VLAN Routing
- VXLAN Troubleshooting
- EVPN Multi-homing Overview
- Active Route Types in Multi-homing
- Ethernet Segment Identifier (ESI)
- Designated Forwarder (DF) Election
- All-Active vs Single-Active Multi-homing
- Route Type 1: Ethernet Auto-Discovery (AD) Route
- Route Type 2: MAC/IP Advertisement Route
- Route Type 3: Inclusive Multicast Ethernet Tag Route
- Route Type 4: Ethernet Segment Route
- Multi-homing and MAC Mobility
- Multi-homing and Fast Convergence
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Percentages reflect share of the current practice bank, not official exam weightings — no structured per-skill weight is published for JN0-650, so none is invented.