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.

Reference: https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncip-ent.html

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

• Routing Policy
• Describe the concepts, operation, or functionality of BGP
• OSPFv2 and OSPFv3
• Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IGPs

BGP route selection process

• BGP attributes: concept and operation
• Next hop resolution
• Implement BGP routing policy
• Regular expressions
• Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor BGP
• Describe the concepts, operation, or functionality of IP multicast
• BGP communities
• NLRI families: inet and inet6
• Advanced BGP options
• Load balancing - multipath, multihop, forwarding table

Components of IP multicast, including multicast addressing

• IGMP, PIM-DM, or PIM-SM (including SSM)
• PIM dense-mode and sparse-mode
• Describe the concepts, operation, or functionality of advanced Ethernet switching
• MSDP
• Anycast RP
• Implement IP multicast routing policy
• Rendezvous point (RP): concept, operation, discovery, and election
• Routing policy and scoring has given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IP multicast
• RPF: concept and operation
• Any-Source Multicast (ASM) vs. Source-Specific Multicast (SSM)
• IP multicast traffic flow
• IGMP and IGMP snooping
• SSM: requirements, benefits, address ranges

Filter-based VLANs

• Junos Fusion Enterprise
• Junos Fusion Enterprise
• Describe the operation of various Layer 2 authentication or access control features
• Filter-based VLANs
• Describe the concepts, operation, or functionality of advanced spanning tree protocols, including MSTP or VSTP
• Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor MSTP or VSTP
• Tunnel Layer 2 traffic through Ethernet networks
• Tunnel Layer 2 traffic through Ethernet networks
• Private VLANs
• Private VLANs
• Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor advanced Ethernet switching
• Layer 2 tunneling using Q-in-Q and L2PT
• Layer 2 tunneling using Q-in-Q and L2PT
• Dynamic VLAN registration using MVRP
• Dynamic VLAN registration using MVRP

Authentication process flow

• Server fail fallback
• Guest VLAN
• MAC RADIUS
• 802.1x: concepts and functionality
• Captive portal
• Describe the concepts, operation, or functionality of features that facilitate IP telephony deployments
• Considerations when using multiple authentication/access control methods
• Given a scenario, demonstrate how to configure, troubleshoot, or monitor Layer 2 authentication or access control

Power over Ethernet (PoE)

• 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
• LLDP and LLDP-MED
• Voice VLAN

CoS processing on Junos devices

• Classification
• Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor CoS for Layer 2 or 3 networks
• CoS header fields
• Packet loss priority
• Policers
• Schedulers
• Forwarding classes
• Describe the concepts, operation, or functionality of Junos EVPN
• Drop profiles
• Rewrite rules
• Shaping

VXLAN

• Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor EVPN
• Multi-homing (for example, active route types)

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Juniper JN0-648 Exam Syllabus Topics: