Juniper JN0-102 Actual Free Exam Questions & Community Discussion

Exam Code/Number: JN0-102
Exam Name/Title: Juniper Networks Certified Internet Associate, Junos (JNCIA-Junos)
Certification Provider: Juniper
Corresponding Certification: JNCIA

Exam Questions: 417
Updated On: May 30, 2026

Question #13

Which word starts the command to remove configuration elements on a Junos device?

A. undo

B. remove

C. unset

D. delete

Discussion 0

Correct Answer: D Vote an answer

Question #14

Where are files queued for transmission when using the configuration archive transfer-on-commit function?

A. /var/config

B. /var/transfer/config

C. /var/queue

D. /var/transfer/queue

Discussion 0

Correct Answer: B Vote an answer

Question #15

You issue the ping interface t1-1/1/0 bypass-routing count 1000 rapid command.
Which statement is correct?

A. The count parameter allows the router to count the number of pings for logging purposes.

B. The count parameter allows the router to pause for 1000 seconds before sending out a ping.

C. The count parameter creates a counter that you can view with the show firewall command.

D. The count parameter allows the router to send out 1000 pings and then stop.

Discussion 0

Correct Answer: D Vote an answer

Question #16

Which two characteristics describe the UDP protocol? (Choose two.)

A. no recovery mechanisms

B. limited error checking

C. three-way handshake

D. defined timers

Discussion 0

Correct Answer: A,B Vote an answer

Question #17

A network administrator would like to view detailed interface status, properties, statistics, errors, and CoS packet counters.
Which operational command will display this information?

A. show interfaces extensive

B. show interfaces

C. show configuration interfaces

D. show interface status

Discussion 0

Correct Answer: A Vote an answer

Question #18

Which statement is correct regarding IPv6 addresses?

A. An IPv6 address consists of 64 bits separated into eight 8-bit hexadecimal sections.

B. An IPv6 address consists of 64 bits separated into four 16-bit hexadecimal sections.

C. An IPv6 address consists of 128 bits separated into sixteen 8-bit hexadecimal sections.

D. An IPv6 address consists of 128 bits separated into eight 16-bit hexadecimal sections.

Discussion 0

Correct Answer: D Vote an answer

Question #19

Which two statements are true about static routes in the Junos OS? (Choose two.)

A. Static routes remain in the routing table until you remove them or until they become inactive.

B. Static routes are learned by neighboring devices and added to their routing tables.

C. Static routes must have a next hop defined.

D. Static routes are defined at the [edit routing-instances] hierarchy.

Discussion 0

Correct Answer: A,C Vote an answer

Question #20

Which two prefixes would summarize the networks shown below? (Choose two.)
192.168.1.0/24
192.168.2.0/24
192.168.3.0/24

A. 192.168.0.0/23

B. 192.168.0.0/24

C. 192.168.0.0/21

D. 192.168.0.0/22

Discussion 0

Correct Answer: C,D Vote an answer

Question #21

You are modifying the default route preference under the [edit protocols] hierarchy.
In which two routing information sources can you change the default preference value? (Choose two.)

A. BGP

B. direct

C. OSPF

D. local

Discussion 0

Correct Answer: A,C Vote an answer

Question #22

-- Exhibit --
[edit routing-options]
user@router# show
static {
defaults {
metric 10;
preference 10;
}
route 10.10.10.0/24 {
next-hop 192.168.100.1;
qualified-next-hop 192.168.200.1;
preference 6;
}
metric 8;
}
}
-- Exhibit --
Given the configuration shown in the exhibit, which statement is correct about traffic matching the route
10.10.10.0/24?

A. It will be forwarded to 192.168.100.1 using a metric of 10.

B. It will be forwarded to 192.168.200.1 using a metric of 10.

C. It will be forwarded to 192.168.200.1 using a metric of 8.

D. It will be forwarded to 192.168.100.1 using a metric of 8.

Discussion 0

Correct Answer: C Vote an answer

Question #23

Which statement is true regarding the Junos OS?

A. Processes share memory space but use separate ASICs so that one process cannot directly interfere with another.

B. A central processor called the IP2 Chip dynamically assigns memory as process needs fluctuate.

C. Each process runs in its own protected memory space ensuring that one process cannot directly interfere with another.

D. The memory management daemon (mmd) is responsible for allocating new memory for processes as they request it.

Discussion 0

Correct Answer: C Vote an answer

Question #24

You are configuring a firewall filter.
Which "from" criterion would match only those packets destined for 10.10.10.1?

A. [edit firewall filter test]root@router# set term 1 from ip-prefix 10.10.10.1

B. [edit firewall filter test]root@router# set term 1 from destination 10.10.10.1

C. [edit firewall filter test]root@router# set term 1 from destination-address 10.10.10.1

D. [edit firewall filter test]root@router# set term 1 from address 10.10.10.1

Discussion 0

Correct Answer: C Vote an answer

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