JNCIA-JUNOS Cheat Sheet

#	Domain	Weight	Questions	Practice
1.0	Networking Fundamentals Networking Fundamentals questions on this certification test your ability to deploy and manage networking fundamentals concepts in scenario-based situations.	—	46	Practice →
2.0	Junos OS Fundamentals Junos OS Fundamentals questions on this certification test your ability to deploy and manage junos os fundamentals concepts in scenario-based situations.	—	90	Practice →

Domain

Weight

Questions

Practice

1.0

Networking Fundamentals

Networking Fundamentals questions on this certification test your ability to deploy and manage networking fundamentals concepts in scenario-based situations.

—

Practice →

2.0

Junos OS Fundamentals

Junos OS Fundamentals questions on this certification test your ability to deploy and manage junos os fundamentals concepts in scenario-based situations.

—

Practice →

Domain Quick Reference

1.0Networking Fundamentals

Networking Fundamentals questions on this certification test your ability to deploy and manage networking fundamentals concepts in scenario-based situations.

Key concepts

✓Core Networking Fundamentals concepts and how they apply in real-world cloud scenarios.
✓How to deploy networking fundamentals correctly and verify the outcome.
✓Troubleshooting networking fundamentals issues by interpreting error output and system state.
✓Cloud best practices and Networking Fundamentals design trade-offs tested by this certification.

Watch out for

⚠Selecting the most expensive service when a simpler managed option meets the requirement.
⚠Forgetting that cloud resources must be explicitly secured — defaults are rarely secure.
⚠Choosing a global service fix when the issue is region-specific.
⚠Overlooking cost implications of cross-region data transfer in architecture questions.

2.0Junos OS Fundamentals

Junos OS Fundamentals questions on this certification test your ability to deploy and manage junos os fundamentals concepts in scenario-based situations.

Key concepts

✓Core Junos OS Fundamentals concepts and how they apply in real-world cloud scenarios.
✓How to deploy junos os fundamentals correctly and verify the outcome.
✓Troubleshooting junos os fundamentals issues by interpreting error output and system state.
✓Cloud best practices and Junos OS Fundamentals design trade-offs tested by this certification.

Watch out for

⚠Selecting the most expensive service when a simpler managed option meets the requirement.
⚠Forgetting that cloud resources must be explicitly secured — defaults are rarely secure.
⚠Choosing a global service fix when the issue is region-specific.
⚠Overlooking cost implications of cross-region data transfer in architecture questions.

Exam Day Reminders

→Read every question stem fully — look for qualifiers like 'MOST likely,' 'BEST,' or 'EXCEPT.'

→Flag uncertain questions and come back — don't waste time on one question.

→Eliminate obviously wrong options first, then choose between remaining ones.

→Trust your first instinct unless you have a specific reason to change.

→For JNCIA-JUNOS, scenarios typically have one clearly best answer — look for the option that matches the specific constraints in the question.

#	Domain	Weight	Questions	Practice
1.0	Networking Fundamentals Networking Fundamentals questions on this certification test your ability to deploy and manage networking fundamentals concepts in scenario-based situations.	—	46	Practice →
2.0	Junos OS Fundamentals Junos OS Fundamentals questions on this certification test your ability to deploy and manage junos os fundamentals concepts in scenario-based situations.	—	90	Practice →

Domain

Weight

Questions

Practice

1.0

Networking Fundamentals

Networking Fundamentals questions on this certification test your ability to deploy and manage networking fundamentals concepts in scenario-based situations.

—

Practice →

2.0

Junos OS Fundamentals

Junos OS Fundamentals questions on this certification test your ability to deploy and manage junos os fundamentals concepts in scenario-based situations.

—

Practice →

Domain Quick Reference

1.0Networking Fundamentals

Networking Fundamentals questions on this certification test your ability to deploy and manage networking fundamentals concepts in scenario-based situations.

Key concepts

✓Core Networking Fundamentals concepts and how they apply in real-world cloud scenarios.
✓How to deploy networking fundamentals correctly and verify the outcome.
✓Troubleshooting networking fundamentals issues by interpreting error output and system state.
✓Cloud best practices and Networking Fundamentals design trade-offs tested by this certification.

Watch out for

⚠Selecting the most expensive service when a simpler managed option meets the requirement.
⚠Forgetting that cloud resources must be explicitly secured — defaults are rarely secure.
⚠Choosing a global service fix when the issue is region-specific.
⚠Overlooking cost implications of cross-region data transfer in architecture questions.

2.0Junos OS Fundamentals

Junos OS Fundamentals questions on this certification test your ability to deploy and manage junos os fundamentals concepts in scenario-based situations.

Key concepts

✓Core Junos OS Fundamentals concepts and how they apply in real-world cloud scenarios.
✓How to deploy junos os fundamentals correctly and verify the outcome.
✓Troubleshooting junos os fundamentals issues by interpreting error output and system state.
✓Cloud best practices and Junos OS Fundamentals design trade-offs tested by this certification.

Watch out for

⚠Selecting the most expensive service when a simpler managed option meets the requirement.
⚠Forgetting that cloud resources must be explicitly secured — defaults are rarely secure.
⚠Choosing a global service fix when the issue is region-specific.
⚠Overlooking cost implications of cross-region data transfer in architecture questions.

Exam Day Reminders

→Read every question stem fully — look for qualifiers like 'MOST likely,' 'BEST,' or 'EXCEPT.'

→Flag uncertain questions and come back — don't waste time on one question.

→Eliminate obviously wrong options first, then choose between remaining ones.

→Trust your first instinct unless you have a specific reason to change.

→For JNCIA-JUNOS, scenarios typically have one clearly best answer — look for the option that matches the specific constraints in the question.

JNCIA-JUNOS Exam Blueprint — At a Glance

Domain Quick Reference

1.0Networking Fundamentals

2.0Junos OS Fundamentals

Exam Day Reminders

More JNCIA-JUNOS resources

JNCIA-JUNOS Cheat Sheet

JNCIA-JUNOS Exam Blueprint — At a Glance

Domain Quick Reference

1.0Networking Fundamentals

2.0Junos OS Fundamentals

Exam Day Reminders

More JNCIA-JUNOS resources