JN0-643

Exam Code: JN0-643
Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)
Questions: 221 Q&As
Updated: 2019-02-08
Price: $ 79 / $ 109
Demo: JN0-643 DEMO (Free)

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Exam Information
Exam code: JN0-643
Written exam
Administered at Pearson VUE testing centers worldwide
Exam length: 120 minutes
Exam type: 70 multiple choice questions
Pass/fail status is available immediately
Prerequisite certification: JNCIS-ENT or JNCIS-ER

Description
Designed for experienced networking professionals with advanced knowledge of the Juniper Networks Junos OS, this written exam verifies the candidate's understanding of advanced enterprise routing and switching technologies and related platform configuration and troubleshooting skills.

JNCIP-ENT Exam Objectives (Exam:JN0-643)

OSPF
Based on a scenario, explain the concepts, operation and functionality of OSPF
Describe the various OSPF LSA types
Explain the flooding of LSAs in an OSPF network
Describe the SPF algorithm
Describe OSPF metrics, including external metric types
List OSPF authentication options
Describe OSPF area types and operations, including stub areas and NSSAs
Summarize and restrict routes
Describe the purpose of virtual links
Based on a scenario, configure and monitor single-area and multi-area OSPF
Implement OSPF routing policy

BGP
Based on a scenario, explain the concepts, operation and functionality of BGP
Explain the BGP route selection process
Describe how to alter the route selection process
Describe various BGP attributes and explain the operation of those attributes
Describe various advanced options for BGP peers
Describe the purpose and function of BGP communities
Utilize regular expressions for route selection
Manipulate BGP attributes using routing policy
Based on a scenario, configure and monitor BGP
Implement BGP routing policy

IP Multicast
Explain the concepts, operation and functionality of IP multicast
Describe IP multicast traffic flow
Identify the components of IP multicast, including multicast addressing
Explain the function of RPF in multicast
Based on a scenario, identify the components and function of common multicast routing protocols
Explain the function of IGMP and compare the various IGMP versions
Describe and compare PIM dense-mode and sparse-mode
Identify the various rendezvous point (RP) discovery options
Compare Any-Source Multicast (ASM) and Source-Specific Multicast (SSM)
Identify the requirements, benefits, and address ranges used for SSM
Based on a scenario, configure and monitor IGMP, PIM-DM, PIM-SM and SSM
Implement IP multicast routing policy

Ethernet Switching and Spanning Tree
Describe, configure and monitor advanced switching features
Explain and implement filter-based VLANs
Describe and configure private VLANs
Explain and implement dynamic VLAN registration using MVRP
Tunnel Layer 2 traffic through Ethernet networks
Implement Layer 2 tunneling using Q-in-Q and L2PT
Based on a scenario, explain the concepts and functionality of advanced spanning tree protocols, including MSTP and VSTP
Based on a scenario, configure and monitor MSTP and VSTP

L2 Authentication and Access Control
Explain the operation of various authentication and access control features
Describe the concepts and functionality of 802.1X
List RADIUS server failback options
Describe the concepts and functionality of MAC RADIUS
Describe the concepts and functionality of captive portal
List considerations when using multiple methods authentication and access control
Based on a scenario, configure and monitor various authentication and access control features

IP Telephony Features
Describe features that facilitate IP telephony deployments
Explain the characteristics of power over Ethernet (PoE)
Describe the characteristics and functionality of LLDP
Explain the function and benefit of voice VLAN
Based on a scenario, configure and monitor features used to support IP telephony deployments

Class of Service (CoS)
Explain the function and benefit of class of service (CoS) in IP networking
List the CoS processing stages on devices running Junos OS
Explain the concepts, operation and functionality of CoS for Layer 2/3 networks
Describe the purpose of forwarding classes
Describe the function and types of packet classification
Describe the function and types of policers
Describe the function and interrelationships of the components of scheduling
Describe the function of rewriting packet headers
Based on a scenario, configure the various CoS components for Layer 2/3 networks, including forwarding classes, classifiers, policers, schedulers, and rewrite rules
Based on a scenario, monitor CoS using various operational commands

Monitoring and Troubleshooting
Based on a scenario, troubleshoot Junos OS routing and switching issues
List common issues that disrupt network operations
Follow a sound methodology for troubleshooting Junos routing and switching issues
Interface-related troubleshooting
Utilize Junos tools to troubleshoot and resolve network issues