Over view of the skillset required to successfully complete the JNCIA-Junos certification exam.
Objective:
Identify the concepts and functionality of various fundamental elements of networking:
Collision domains and broadcast domains
Function of routers and switches
Ethernet networks
Layer 2 addressing, including address resolution
Layer 3 / IP addressing, including subnet masks
IPv4 / IPv6
Subnetting and supernetting
Decimal to binary conversion
Longest match routing
CoS
Connection-oriented vs. connectionless protocols
Identify the concepts, benefits, or functionality of the core elements of the Junos OS, including:
Software architecture
Control and forwarding planes
Routing engine and packet-forwarding engine
Transit traffic processing
Exception traffic
Identify the concepts, operation, or functionality of the Junos user interface, including:
CLI functionality
CLI modes
CLI navigation
CLI Help
Filtering output
Active vs. candidate configuration
Reverting to previous configurations
Modifying, managing, and saving configuration files
Viewing, comparing, and loading configuration files
J-Web (core/common functionality only)
Identify the main elements for configuring Junos devices, including:
Factory-default state
Initial configuration
User accounts
Login classes
User authentication methods
Interface types and properties
Configuration groups
Additional initial configuration elements, such as Network Time Protocol (NTP), SNMP, system log
Configuration archival
Logging and tracing
Rescue configuration
Describe how to configure basic components of a Junos device
Identify methods of monitoring or maintaining Junos devices, including:
Show commands
Monitor commands
Interface statistics and errors
Network tools, such as ping, traceroute, telnet, SSH, etc.
Junos OS installation and upgrades
Powering on and shutting down Junos devices
Root password recovery
Describe monitoring or maintenance procedures for a Junos device
Identify basic routing concepts or functionality for Junos devices, including:
Traffic forwarding concepts
Routing tables
Routing vs. forwarding tables
Route preference
Routing instances
Static routing
Advantages of and use cases for dynamic routing protocols
Describe how to configure or monitor basic routing elements for a Junos device
Routing Policy and Firewall Filters
Identify the concepts or functionality of routing policy and firewall filters on Junos devices
Default routing policies
Import and export policies
Routing policy flow
Effect of policies on routes and routing tables
Policy structure and terms
Policy match criteria, match types, and actions
Firewall filter concepts
Filter structure and terms
Filter match criteria and actions
Effect of filters on packets
Unicast reverse-path-forwarding (RPF)
Describe how to configure or monitor routing policies and firewall filters on a Junos device
Exam questions are derived from the recommended training and the exam resources listed above. Pass/fail status is available immediately after taking the exam. The exam is only provided in English.
Exam Code: JN0-105
Prerequisite Certification: None
Delivered by: Pearson VUE
Exam Length: 90 minutes
Exam Type: 65 multiple-choice questions
Software Versions: Junos OS 21.2
Recertification: Juniper certifications are valid for three years. For more information, see Recertification.
Checkout the following free resources:
Old Exam Objectives:
Junos OS fundamentals
Routing and switching
IP addressing and routing
VLANs and trunking
OSPF and EIGRP
ACLs and firewalls
NAT and PAT
Troubleshooting