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Juniper JN0-349 Exam Syllabus

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Before starting your JN0-349 exam preparation, it is recommended to review the complete Juniper Enterprise Routing and Switching, Specialist Exam syllabus and carefully go through the exam objectives listed below. Once you understand the exam structure and objectives, you should practice using our free JN0-349 questions. We also provide premium JN0-349 practice test, fully updated according to the latest exam objectives, to help you accurately assess your preparedness for the actual exam.

Juniper JN0-349 Exam Objectives

Section Objectives
Layer 2 Switching or VLANs Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS
  •     Bridging components
  •     Frame processing
Describe the concepts, benefits, or functionality of VLANs
  •     Ports
  •     Tagging
  •     Native VLANs and voice VLANs
  •     Inter-VLAN routing
Demonstrate knowledge how to configure, monitor or troubleshoot Layer 2 switching or VLANs
  •     Interfaces and ports
  •     VLANs
  •     Inter-VLAN Routing
Spanning Tree Describe the concepts, benefits, operation, or functionality of the Spanning Tree Protocol
  •     STP and RSTP concepts
  •     Port roles and states
  •     BPDUs
  •     Convergence and reconvergence
Demonstrate knowledge how to configure, monitor, or troubleshoot Spanning Tree
  •     STP
  •     RSTP
Layer 2 Security Identify the concepts, benefits or operation of various Layer 2 protection or security features
  •     BPDU, loop or root protection
  •     Port security, including MAC limiting, DHCP snooping, Dynamic ARP inspection (DAI) or IP source guard
  •     MACsec
  •     Storm control
Identify the concepts, benefits or operation of Layer 2 firewall filters
  •     Filter types
  •     Processing order
  •     Match criteria and actions
Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security
  •     Protection
  •     Port security
  •     Storm control
  •     Firewall filter configuration and application
Protocol Independent Routing Identify the concepts, operation or functionality of various protocol-independent routing components
  •     Static, aggregate, and generated routes
  •     Martian addresses
  •     Routing instances, including RIB groups
  •     Load balancing
  •     Filter-based forwarding
 Demonstrate knowledge how to configure, monitor, or troubleshoot various protocol-independent routing components
  •     Static, aggregate, and generated routes
  •     Load balancing
  •     Filter-based forwarding
OSPF Describe the concepts, operation or functionality of OSPF
  •     Link-state database
  •     OSPF packet types
  •     Router ID
  •     Adjacencies and neighbors
  •     Designated router (DR) and backup designated router (BDR)
  •     OSPF area and router types
  •     Realms
  •     LSA packet types
 Demonstrate knowledge how to configure, monitor or troubleshoot OSPF
  •     Areas, interfaces and neighbors
  •     Additional basic options
  •     Routing policy application
  •     Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)
IS-IS Describe the concepts, operation or functionality of IS-IS

    Link-state database
    IS-IS PDUs
    TLVs
    Adjacencies and neighbors
    Levels and areas
    Designated intermediate system (DIS)
    Metrics

 Demonstrate knowledge of how to configure, monitor or troubleshoot IS-IS

    Levels, interfaces and adjacencies
    Additional basic options
    Routing policy application
    Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)
BGP Describe the concepts, operation or functionality of BGP
  •     BGP basic operation
  •     BGP message types
  •     Attributes
  •     Route/path selection process
  •     IBGP and EBGP functionality and interaction

Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP
  •     Groups and peers
  •     Additional basic options
  •     Routing policy application
  •     Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)
Tunnels Identify the concepts, requirements or functionality of IP tunneling
  •     Tunneling applications and considerations
  •     GRE
  •     IP-IP
Demonstrate knowledge of how to configure, monitor or troubleshoot IP tunnels
  •     GRE
  •     IP-IP
  •     Troubleshooting tools (e.g., ping, traceroute, trace options, show commands, logging)
High Availability Identify the concepts, benefits, applications or requirements for high availability in a Junos OS environment
  •     Link aggregation groups (LAG)
  •     Redundant trunk groups (RTG)
  •     Virtual Chassis
  •     Graceful restart (GR)
  •     Graceful Routing Engine switchover (GRES)
  •     Nonstop active routing (NSR)
  •     Nonstop bridging (NSB)
  •     Bidirectional Forwarding Detection (BFD)
  •     Virtual Router Redundancy Protocol (VRRP)
  •     Unified In-Service Software Upgrade (ISSU)
Demonstrate knowledge of how to configure, monitor, or troubleshoot high availability components
  •     LAG and RTG
  •     Virtual Chassis
  •     GR, GRES, NSB, and NSR
  •     VRRP
  •     ISSU
  •     Troubleshooting tools (e.g., trace options, show commands, logging)
Official Information https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncis-ent.html