JNCIS-ENT Exam Objectives (Exam: JN0-347)
This list provides a general view of the skill set required to successfully complete the specified certification exam.
Layer 2 Switching and VLANs
Spanning Tree
Layer 2 Security
Protocol-Independent Routing
OSPF
IS-IS
BGP
Tunnels
High Availability
Layer 2 Switching and 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
- Junos Network Director
- 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 STP and RSTP
- 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
- 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)