Free JN0-103 Sample Questions — Junos, Associate (JNCIA-Junos)

Junos, Associate (JNCIA-Junos) (JN0-103) is a associate-level Juniper certification exam. The blueprint splits the exam across 7 domains, starting with Junos OS Fundamentals, Routing Fundamentals, Switching Fundamentals. On exam day you face around 65 questions in 90 minutes, in formats such as multiple choice. The 15 questions below are free samples written to match that style: answer each one first, then reveal the correct answer and note which topics you miss. The JN0-103 is rated easy in difficulty, and most candidates prepare with at least 6 months of hands-on experience. Because every answer is revealed in place, you can work through the whole set without leaving this page. Work through all 15 samples before deciding whether to buy the full 70+ question PDF.

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Question 1

What is the default location of the primary syslog file on Junos devices?

  • A. /var/log/
  • B. /var/tmp/
  • C. /var/home/
  • D. /var/db/
Show Answer
Correct Answer:
A. /var/log/
Question 2

Which two methods keep a Junos device operational if the primary storage device fails? (Choose two.)

  • A. Create a rescue configuration
  • B. Enable J-Web for device management
  • C. Create a recovery snapshot
  • D. Enable the ephemeral database
Show Answer
Correct Answer:
  • A. Create a rescue configuration
  • C. Create a recovery snapshot
Question 3

What is the maximum number of configurations, by default, that are recoverable using the rollback command?

  • A. 50
  • B. 25
  • C. 100
  • D. 75
Show Answer
Correct Answer:
A. 50
Question 4

When multiple users are editing the configuration on a Junos device, what is the default behavior when a user issues a commit command?

  • A. All valid configuration changes made by all users will take effect
  • B. The user's configuration changes are committed; other users' configuration changes are still pending
  • C. The user will receive an error message disallowing a commit of the configuration
  • D. The user's configuration changes are committed; other users will be exited from configuration mode
Show Answer
Correct Answer:
A. All valid configuration changes made by all users will take effect
Question 5

By default, which character indicates the UNIX shell prompt?

  • A. #
  • B. %
  • C. $
  • D. >
Show Answer
Correct Answer:
B. %
Question 6

Which statement is true about the longer route-filter match type?

  • A. All routes within the specified prefix that are longer than or equal to the given prefix are considered a match
  • B. All routes within the specified prefix that are longer or equal to the given prefix up to a defined acceptable prefix length are considered a match
  • C. All routes within the specified prefix that are longer than the given prefix up to a defined acceptable prefix length are considered a match
  • D. All routes within the specified prefix that are longer than the given prefix are considered a match
Show Answer
Correct Answer:
D. All routes within the specified prefix that are longer than the given prefix are considered a match
Question 7

What are two modes of unicast reverse path forwarding? (Choose two.)

  • A. strict
  • B. high
  • C. low
  • D. loose
Show Answer
Correct Answer:
  • A. strict
  • D. loose
Question 8

What is an `X` release of the Junos OS?

  • A. a standard feature release
  • B. a feature velocity release
  • C. a special feature release
  • D. a feature beta release
Show Answer
Correct Answer:
C. a special feature release
Question 9

Which two statements are true regarding dynamic routing? (Choose two.)

  • A. Participating devices dynamically learn routing information from each other
  • B. Dynamic routing requires more administrative overhead than static routing
  • C. Dynamic routing allows a device to automatically reroute traffic around a failure
  • D. Dynamic routing is used when absolute control of routing parameters is necessary
Show Answer
Correct Answer:
  • A. Participating devices dynamically learn routing information from each other
  • C. Dynamic routing allows a device to automatically reroute traffic around a failure
Question 10

Routing policies contain which two types of statements? (Choose two.)

  • A. then
  • B. from
  • C. default
  • D. and
Show Answer
Correct Answer:
  • A. then
  • B. from
Question 11

You have configured an SRX Series device for the first time. When you commit your configuration, the Junos OS notifies you that you cannot yet commit your configuration. Which configuration step must you complete?

  • A. date/time
  • B. root authentication
  • C. security policies
  • D. hostname
Show Answer
Correct Answer:
B. root authentication
Question 12

Which two commands would you use to reset the candidate configuration to the active configuration? (Choose two.)

  • A. rollback 0
  • B. rollback 2
  • C. rollback 1
  • D. rollback
Show Answer
Correct Answer:
  • A. rollback 0
  • D. rollback
Question 13

You are considering an upgrade from 19.1R1 and want to ensure that only bug fixes are included. Which two software versions should you consider in this situation? (Choose two.)

  • A. 19.3R1-S1
  • B. 19.3R2
  • C. 19.1R3
  • D. 19.1R1-S2
Show Answer
Correct Answer:
  • C. 19.1R3
  • D. 19.1R1-S2
Question 14

Which account is used to access a Junos device in a factory-default configuration?

  • A. root
  • B. admin
  • C. lab
  • D. juniper
Show Answer
Correct Answer:
A. root
Question 15

Which statement is true about the orlonger route-filter match type?

  • A. All routes within the specified prefix that are longer than or equal to the given prefix are considered a match
  • B. All routes within the specified prefix that are longer or equal to the given prefix up to a defined acceptable prefix length are considered a match
  • C. All routes within the specified prefix that are longer than the given prefix up to a defined acceptable prefix length are considered a match
  • D. All routes within the specified prefix that are longer than the given prefix are considered a match
Show Answer
Correct Answer:
D. All routes within the specified prefix that are longer than the given prefix are considered a match

JN0-103 sample questions FAQ

Are these JN0-103 sample questions from the real exam?

No. They are original practice questions written to match the format and topic mix of the Junos, Associate (JNCIA-Junos) exam, which contains around 65 questions. Treat them as representative practice, not leaked exam content.

How many free JN0-103 sample questions do I get?

This page includes 15 questions, each with its correct answer you can reveal in place. The full study PDF expands that to 70+ questions.

Do the sample questions include the correct answers?

Yes. Open the answer panel under each question to see which option is correct. Answer first, then reveal, so the set works as a self-check rather than a reading exercise.

Is 15 sample questions enough to pass the JN0-103?

Not on its own. Use the samples to find weak topics, revise them against the official domains, then work through the full 70+ question set under timed conditions before booking the exam.

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