JNCIS-ENT JN0-352 Practice Exam

JNCIS-ENT JN0-352

About JNCIP-ENT JN0- 352 Exam

The JN0-352 exam is a track designed to allow participants to demonstrate competence with advanced data center technologies and related configuration and troubleshooting skills. Successful candidates demonstrate advanced knowledge of the Junos OS used in a data center environment.

Target Audience

The exam is designed for experienced networking professionals with beginner to intermediate knowledge of routing and switching implementations in Junos. The written exam verifies the candidate’s basic understanding of routing and switching technologies and related platform configuration and troubleshooting skills.

Prerequisite for the exam

Candidates who wish to appear for the JN0-352 exam are required to pass the JNCIA-Junos certification exam. 

Course Structure

The JNCIS-ENT JN0-352 Exam covers the following topics - 

Domain 1 - Layer 2 Switching or VLANs

Identify the concepts, operations, or functionalities of Layer 2 switching for the Junos OS:

• Bridging components
• Frame processing

Describe the concepts, benefits, or functionalities 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  

Domain 2 - Spanning Tree

Describe the concepts, benefits, operations, or functionalities of the Spanning Tree Protocol (STP):

• STP and Rapid Spanning Tree Protocol (RSTP) concepts
• Port roles and states
• Bridge Protocol Data Units (BPDUs)
• Convergence and reconvergence

Demonstrate knowledge how to configure, monitor, or troubleshoot Spanning Tree:

• STP
• RSTP

Domain 3 - Layer 2 Security

Identify the concepts, benefits, or operations 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 operations 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

Domain 4 - Protocol Independent Routing

Identify the concepts, operations, or functionalities of various protocol-independent routing components:

• Static, aggregate, and generated routes
• Martian addresses
• Routing instances, including routing information base (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

Domain 5 - OSPF

Describe the concepts, operations, or functionalities 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
• Link-state advertisement (LSA) packet types

Demonstrate knowledge how to configure, monitor, or troubleshoot OSPF:

• Areas, interfaces, and neighbors
• Additional basic options
• Routing policy application
• Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)

Domain 6 - IS-IS

Describe the concepts, operations, or functionalities of IS-IS:

• Link-state database
• IS-IS Protocol Data Units (PDUs)
• Type, length, and values (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 (ping, traceroute, traceoptions, show commands, logging)

Domain 7 - BGP

• Describe the concepts, operations, or functionalities of BGP:
• BGP basic operation
• BGP message types
• Attributes
• Route/path selection process
• Internal and external BGP (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 (ping, traceroute, traceoptions, show commands, logging)

Domain 8 - Tunnels

Identify the concepts, requirements, or functionalities of IP tunneling:

• Tunneling applications and considerations
• Generic Routing Encapsulation (GRE)
• IP-IP

Demonstrate knowledge of how to configure, monitor, or troubleshoot IP tunnels:

• GRE
• IP-IP
• Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)

Domain 9 - 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
• 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
• Graceful restart, GRES, NSB, and NSR
• VRRP
• ISSU
• Troubleshooting tools (traceoptions, show commands, logging)

Exam Pattern 

• Exam Name: Enterprise Routing and Switching, Specialist (JNCIS-ENT)
• Exam Code: JN0-348
• Number of Questions: 65
• Length of Time:  90 Minutes

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