Free JN0-104 Sample Questions — Junos, Associate (JNCIA-Junos)

Junos, Associate (JNCIA-Junos) (JN0-104) 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 JN0-104 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 62+ question PDF.

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Question 1

user@router> show interfaces | no-more What happens when you filter the output of a command using the no-more parameter?

  • A. The output is displayed in XML format
  • B. The output is displayed with no page breaks
  • C. The last screen of information is displayed
  • D. The number of lines in the output are displayed
Show Answer
Correct Answer:
B. The output is displayed with no page breaks
Question 2

Your Junos OS routers use a static route to provide connectivity to the management network. You do not want this static route to be redistributed using a dynamic routing protocol In this scenario, which static route configuration parameter will accomplish this task?

  • A. no-readvertise
  • B. no-rerain
  • C. no-install
  • D. no-resolv
Show Answer
Correct Answer:
A. no-readvertise
Question 3

Which two statements describe firewall filters? (Choose two.)

  • A. Firewall filters provide stateless security
  • B. Firewall filters provide stateful security
  • C. Firewall filters are applied to security policies
  • D. Firewall filters are applied to interfaces 15
Show Answer
Correct Answer:
  • A. Firewall filters provide stateless security
  • D. Firewall filters are applied to interfaces 15
Question 4

What are two important steps when upgrading an SRX300 Series device? (Choose two.)

  • A. Clear all alarms
  • B. Verify that enough space exists to upload the software package
  • C. Verify that the NETCONF protocol is enabled
  • D. Reboot the device
Show Answer
Correct Answer:
  • B. Verify that enough space exists to upload the software package
  • D. Reboot the device
Question 5

What is the default action for packets not matching a firewall filter?

  • A. The packet will be silently discarded
  • B. The packet will be accepted
  • C. The packet will be rejected
  • D. The packet will be ignored
Show Answer
Correct Answer:
B. The packet will be accepted
Question 6

Which protocol is responsible for learning an IPv6 neighbor's MAC address?

  • A. Address Resolution Protocol (ARP)
  • B. Media Access Control Security (MACsec)
  • C. Neighbor Discovery Protocol (NDP)
  • D. Network Address Translation (NAT)
Show Answer
Correct Answer:
C. Neighbor Discovery Protocol (NDP)
Question 7

You are asked to configure a Junos device to perform regular configuration backups. Which feature will you configure under the [edit system] hierarchy to accomplish this task?

  • A. syslog
  • B. backup-router
  • C. tracing
  • D. archival
Show Answer
Correct Answer:
D. archival
Question 8

What are two benefits of a modular operating system? (Choose two.)

  • A. Each module runs in its own protected memory space
  • B. It enables the independent restart of each module as necessary
  • C. malfunction in one module causes a full system shutdown
  • D. It enables CPU scheduling strictly using kernel system calls
Show Answer
Correct Answer:
  • A. Each module runs in its own protected memory space
  • B. It enables the independent restart of each module as necessary
Question 9

Which two statements about exception traffic processing are correct? (Choose two.)

  • A. By default, a rate-limiter for exception traffic exists on the internal link between the control plane and the forwarding plane
  • B. By default, no rate-limiter for exception traffic exists on the internal link between the control plane and the forwarding plane
  • C. When congestion occurs, local and control traffic are given preference
  • D. When congestion occurs, only exception traffic is given preference
Show Answer
Correct Answer:
  • A. By default, a rate-limiter for exception traffic exists on the internal link between the control plane and the forwarding plane
  • C. When congestion occurs, local and control traffic are given preference
Question 10

Which statement is true about using custom login class permissions?

  • A. If you allow and deny the same command, the command is denied
  • B. If you allow and deny the same command, Junos OS will randomly choose the action
  • C. If you allow and deny the same command, the command is allowed
  • D. If you allow and deny the same command, the Junos OS will fail the commit check
Show Answer
Correct Answer:
C. If you allow and deny the same command, the command is allowed
Question 11

Which address correctly represents a valid abbreviation for the 2bfc:0000:0000:0000:0217:0000:fe8c:5c85/128 IPv6 address?

  • A. 2bfc:0217: fe8c:5c85/128
  • B. 2bfc:0:217::fe8c:5c85/128
  • C. 2bfc:0:217:0:fe8c:5c85/128
  • D. 2bfc::217:0:fe8c:5c85/128
Show Answer
Correct Answer:
D. 2bfc::217:0:fe8c:5c85/128
Question 12

You are troubleshooting a problem on your Junos device. You want to view the syslog messages in real-time on your terminal. In this scenario, which command will accomplish this task?

  • A. monitor log messages
  • B. show log traceoptions
  • C. show log messages
  • D. monitor start message
Show Answer
Correct Answer:
D. monitor start message
Question 13

Which three benefits are made possible by the separation of the control plane and forwarding plane of a Junos device? (Choose three.)

  • A. stateful firewall
  • B. deep packet inspection
  • C. in-service software upgrades
  • D. graceful Routing Engine switchover
  • E. nonstop active routing
Show Answer
Correct Answer:
  • C. in-service software upgrades
  • D. graceful Routing Engine switchover
  • E. nonstop active routing
Question 14

What is the network address for a host with an IP address of 192.168.87.125/16?

  • A. 192.168.96.0
  • B. 192.168.87.0
  • C. 192.168.128.0
  • D. 192.168.0.0
Show Answer
Correct Answer:
D. 192.168.0.0
Question 15

Which two statements describe the RE on Junos OS devices? (Choose two.)

  • A. The RE maintains the routing tables
  • B. The RE provides hardware status messages for the PFE
  • C. The RE forwards traffic based on its local copy of the forwarding table
  • D. The RE is considered the control plane
Show Answer
Correct Answer:
  • A. The RE maintains the routing tables
  • D. The RE is considered the control plane

JN0-104 sample questions FAQ

Are these JN0-104 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 JN0-104 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 62+ 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 JN0-104?

Not on its own. Use the samples to find weak topics, revise them against the official domains, then work through the full 62+ question set under timed conditions before booking the exam.

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