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Topics of Juniper JN0-648: Enterprise Routing and Switching, Professional (JNCIP-ENT) Exam
Candidates must know the exam topics before they start preparation. Because it will help them in hitting the core. Our Juniper JN0-648 exam dumps will include the following topics:
IS-IS
- Describe the concepts, operation, or functionality of BGP
- Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IGPs
- OSPFv2 and OSPFv3
- Routing Policy
BGP route selection process
- Load balancing - multipath, multihop, forwarding table
- NLRI families: inet and inet6
- Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor BGP
- BGP attributes: concept and operation
- Describe the concepts, operation, or functionality of IP multicast
- BGP communities
- Advanced BGP options
- Implement BGP routing policy
- Regular expressions
- Next hop resolution
Components of IP multicast, including multicast addressing
- Anycast RP
- Any-Source Multicast (ASM) vs. Source-Specific Multicast (SSM)
- MSDP
- Implement IP multicast routing policy
- IGMP and IGMP snooping
- Describe the concepts, operation, or functionality of advanced Ethernet switching
- IP multicast traffic flow
- Rendezvous point (RP): concept, operation, discovery, and election
- IGMP, PIM-DM, or PIM-SM (including SSM)
- Routing policy and scoring has given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IP multicast
- SSM: requirements, benefits, address ranges
- RPF: concept and operation
- PIM dense-mode and sparse-mode
Filter-based VLANs
- Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor MSTP or VSTP
- Filter-based VLANs
- Layer 2 tunneling using Q-in-Q and L2PT
- Layer 2 tunneling using Q-in-Q and L2PT
- Describe the operation of various Layer 2 authentication or access control features
- Private VLANs
- Private VLANs
- Junos Fusion Enterprise
- Junos Fusion Enterprise
- Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor advanced Ethernet switching
- Tunnel Layer 2 traffic through Ethernet networks
- Tunnel Layer 2 traffic through Ethernet networks
- Dynamic VLAN registration using MVRP
- Dynamic VLAN registration using MVRP
- Describe the concepts, operation, or functionality of advanced spanning tree protocols, including MSTP or VSTP
Authentication process flow
- MAC RADIUS
- Given a scenario, demonstrate how to configure, troubleshoot, or monitor Layer 2 authentication or access control
- Describe the concepts, operation, or functionality of features that facilitate IP telephony deployments
- Guest VLAN
- Considerations when using multiple authentication/access control methods
- Captive portal
- Server fail fallback
- 802.1x: concepts and functionality
Power over Ethernet (PoE)
- LLDP and LLDP-MED
- Voice VLAN
- Describe the concepts, operation, or functionality of Junos CoS for Layer 2 or 3 networks
- Given a scenario, demonstrate how to configure, troubleshoot, or monitor features used to support IP telephony deployments
CoS processing on Junos devices
- Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor CoS for Layer 2 or 3 networks
- Drop profiles
- Rewrite rules
- Policers
- Classification
- Schedulers
- Forwarding classes
- Packet loss priority
- CoS header fields
- Shaping
- Describe the concepts, operation, or functionality of Junos EVPN
VXLAN
- Multi-homing (for example, active route types)
- Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor EVPN
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Recertification of JNCIP-ENT
Once certified, the JNCIP-ENT certification is valid for three years. You must recertify within the active period (three years) otherwise your designation will expire and you will need to re-earn the entire certification track, including the lower-level certificates as these are the prerequisites for more advanced validations such as the JNCIP-ENT certification. Generally, you can recertify by testing or by attending relevant courses. If need be, you can view the status of your certification by using CertManager.
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Juniper JN0-648 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Ethernet Switching & Spanning Tree | 15% | - MSTP, VSTP and loop prevention - L2 tunneling and L2PT - VLANs, trunking, MVRP and Q-in-Q |
| Topic 2: Interior Gateway Protocols (IGPs) | 20% | - OSPFv2 / OSPFv3 concepts, configuration and troubleshooting - IS-IS protocol operation and implementation - Route redistribution and routing policy |
| Topic 3: IP Multicast | 15% | - Multicast addressing and traffic flow - PIM-SM / PIM-SSM and RP mechanisms - IGMPv2 / IGMPv3 operation |
| Topic 4: Monitoring, Troubleshooting & High Availability | 10% | - VRRP and link aggregation - Protocol verification and troubleshooting tools - Graceful restart and nonstop routing |
| Topic 5: Class of Service (CoS) | 10% | - Queuing, scheduling, policing and shaping - CoS implementation for L2/L3 networks - Traffic classification and marking |
| Topic 6: Border Gateway Protocol (BGP) | 20% | - BGP attributes and path selection - BGP routing policies and communities - IBGP / EBGP configuration and scaling |
| Topic 7: Layer 2 Authentication & Access Control | 10% | - MAC RADIUS and dynamic VLAN assignment - Port security and access control lists - 802.1X authentication |






