Junos, Associate (JNCIA-Junos) Certification Overview
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Junos, Associate (JNCIA-Junos) Certification Overview
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The JNCIA-Junos certification is designed for networking
professionals with beginner-intermediate knowledge of networking. The written exam
verifies your understanding of the core functionality of the Juniper Networks Junos
OS.
Because JNCIA-Junos provides a core understanding of the Juniper
Networks core operating system, it serves as the baseline certification for multiple
certification tracks:
Exam Preparation
We recommend the following resources to help you prepare for your exam. However, these resources
aren't required, and using them doesn't guarantee you'll pass the exam.
Exam Objectives
Here’s a high-level view of the skillset required to successfully complete the JNCIA-Junos
certification exam.
| Exam Objective |
Description |
Networking Fundamentals
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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
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| Junos OS Fundamentals
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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
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| User Interfaces
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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)
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| Configuration Basics
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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
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| Operational Monitoring and Maintenance
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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
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| Routing Fundamentals
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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
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| Routing Policy and Firewall Filters
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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
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Unicast reverse-path-forwarding (RPF)
Describe how to configure or monitor routing
policies and firewall filters on a Junos device
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Exam Details
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.
Prerequisite Certification
Exam Type
- 65 multiple-choice questions
Recertification
Juniper certifications are valid for three years. For more information, see Recertification.
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