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JNCIP-ENT Exam Objectives (Exam: JN0-647)

This list provides a general view of the skill set required to successfully complete the specified certification exam. Topics listed are subject to change.

Interior Gateway Protocols (IGPs)
BGP
IP Multicast
Ethernet Switching and Spanning Tree
Layer 2 Authentication and Access Control
IP Telephony Features
Class of Service (CoS)

Interior Gateway Protocols (IGPs)

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

BGP

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

IP Multicast

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

Ethernet Switching and Spanning Tree

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

Layer 2 Authentication and Access Control

  • Describe the operation of various Layer 2 authentication or access control features
    • Authentication process flow
    • 802.1x - concepts and functionality
    • MAC RADIUS
    • Captive portal
    • Server fail fallback
    • Guest VLAN
    • Considerations when using multiple authentication/access control methods
  • Given a scenario, demonstrate how to configure, troubleshoot, or monitor Layer 2 authentication or access control

IP Telephony Features

  • Describe the concepts, operation or functionality of features that facilitate IP telephony deployments
    • Power over Ethernet (PoE)
    • LLDP and LLDP-MED
    • Voice VLAN
  • Given a scenario, demonstrate how to configure, troubleshoot, or monitor features used to support IP telephony deployments

Class of Service (CoS)

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