JNCIA JUNOS Quiz 2 ⋆ IpCisco

JNCIA-JUNOS JN0-106 Practice Questions 2

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Question 1

Which Junos feature allows common configuration statements to be reused in multiple parts of the configuration?

Juniper jncia junos Configuration groups

A	Routing instances
B	Prefix lists
C	Firewall terms
D	Login classes
E	Configuration groups

Question 2

What is the main purpose of a routing instance in Junos OS?

routing instance in JUNOS JNCIA questions

A	To configure the root password
B	To configure system logging
C	To monitor interface errors
D	To store rollback configurations
E	To create separate logical routing environments

Question 3

Which command can be used to navigate to the interfaces configuration hierarchy in Junos OS?

A	interfaces
B	edit interfaces
C	create interfaces
D	check interfaces
E	cd interfaces

Question 4

In the MAC address 00:1A:2B:3C:4D:5E, which portion identifies the vendor (OUI)?

A	00:1A:2B:3C
B	00:1A
C	00:1A:2B
D	3C:4D:5E
E	4D:5E

Question 5

What is the primary purpose of a rescue configuration in Junos OS?

A	To provide a known working configuration for recovery
B	To automatically recover the root password
C	To back up routing tables
D	To store Junos installation packages
E	To store interface statistics

Question 6

Which command is used to save the current committed configuration as the rescue configuration in Junos OS?

A	request system configuration rescue save
B	set system rescue
C	commit rescue
D	save rescue configuration
E	request system configuration rescue

Question 7

Which subnet mask corresponds to a /20 prefix length?

A	255.255.254.0
B	255.255.248.0
C	255.255.244.0
D	255.255.240.0
E	255.255.252.0

Question 8

How many bits are in an IPv6 address?

A	96
B	128
C	64
D	48
E	32

Question 9

Which pipe option displays only output lines that contain a specified string?

A	\| match
B	\| search
C	\| filter
D	\| find
E	\| include

Question 10

Which command can be used to return to the top level of the Junos configuration hierarchy?

A	root
B	home
C	up all
D	top
E	exit all

Question 11

Which configuration hierarchy is used to configure a prefix list in Junos OS?

A	[edit routing-options]
B	[edit policy-options]
C	[edit system]
D	[edit interfaces]
E	[edit firewall]

Question 12

What is the primary purpose of system logging (syslog) on a Junos device?

A	To create user accounts
B	To record system events and messages
C	To calculate routes
D	To resolve MAC addresses
E	To assign IP addresses

Question 13

At which OSI layers do routers and traditional Layer 2 switches primarily operate?

A	Layer 3 / Layer 4
B	Layer 2 / Layer 4
C	Layer 3 / Layer 2
D	Layer 4 / Layer 3
E	Layer 2 / Layer 3

Question 14

What is the primary purpose of unicast Reverse Path Forwarding (RPF)?

JNCIA questions what is unicast reverse path forwarding

A	To verify that the source of a packet is reachable through an appropriate path
B	To assign route preferences
C	To select the route with the longest prefix
D	To convert IPv4 addresses to IPv6
E	To encrypt packets between routers

Question 15

Which protocol is commonly used to monitor and manage network devices?

A	FTP
B	DHCP
C	ARP
D	SNMP
E	NTP

Question 16

What does a Junos login class primarily define?

A	VLAN membership
B	User permissions and access privileges
C	Routing protocol preference
D	Interface bandwidth
E	Firewall filter order

Question 17

Which command restores a previously committed configuration into the candidate configuration?

A	load previous
B	revert
C	restore
D	rollback
E	recover

Question 18

Which command can be used to display the path that packets take toward a destination?

A	check
B	do
C	traceroute
D	run
E	ping

Question 19

Which command provides context-sensitive help in the Junos CLI?

A	show help
B	?
C	assist
D	help
E	help cli

Question 20

Under which Junos configuration hierarchy is the root authentication password configured?

A	[edit system root-authentication]
B	[edit security password]
C	[edit interfaces root]
D	[edit system login root]
E	[edit authentication root]

Question 21

What is the broadcast address of the IPv4 prefix 172.100.100.0/28?

A	172.100.100.254
B	172.100.100.1
C	172.100.100.15
D	172.100.100.255
E	172.100.100.16

Question 22

Which type of route is manually configured by an administrator?

A	Dynamic route
B	Static route
C	Local route
D	Aggregate route
E	Direct route

Question 23

Which command can be used to display real-time system log messages in Junos OS?

A	show log realtime
B	monitor system messages
C	trace messages
D	monitor start messages
E	show messages live

Question 24

What is the binary equivalent of decimal 146?

A	10010010
B	10100010
C	10010011
D	10010110
E	11010010

Question 25

In which layer of OSI, do Routers work?

A	Layer 5
B	Layer 7
C	Layer 1
D	Layer 2
E	Layer 3

Question 26

Which protocol is commonly used to synchronize the system time on a Junos device?

A	NTP
B	ICMP
C	SNMP
D	FTP
E	ARP

Question 27

By default, how many collision domains are there on a 48-port Layer 2 switch if all 48 ports are in use?

A	48
B	2
C	5
D	24
E	1

Question 28

How many octets are in an IPv4 address?

A	4
B	20
C	8
D	32
E	24

Question 29

How many layers are in the modern TCP/IP model?

A	6
B	4
C	8
D	5
E	7

Question 30

Which three are Layer 3 protocols? (Choose Three)

A	OSPF
B	STP
C	ICMP
D	ARP
E	IP

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There are 30 questions to complete.

gokhankosem

Gokhan Kosem is a Network Engineer, Instructor and the Founder of IPCisco.com with 15+ years of experience in Cisco, Nokia, Huawei, Juniper, Linux, Service Provider Networks, Routing and Switching technologies.

He has worked on the backbone networks of major service providers and network vendors including Nortel, Alcatel-Lucent (Nokia) and has extensive hands-on experience with Cisco, Huawei, Juniper and Nokia networking technologies.

He has trained thousands of networking students worldwide through IPCisco.com, Udemy, books, labs, quizzes, and educational content across multiple social media platforms.

IPCisco.com | Best Route to Your Dreams

JNCIA JUNOS Quiz 2

JNCIA-JUNOS JN0-106 Practice Questions 2

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