JNCIA JUNOS Quiz 1 ⋆ IpCisco

JNCIA-JUNOS JN0-106 Practice Questions 1

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Question 1

How can we write the current candidate configuration to the permanent storage media?

A	write /var/tmp/current.conf
B	save /var/tmp/current.conf
C	copy /var/tmp/current.conf
D	commit verify /var/tmp/current.conf
E	commit /var/tmp/current.conf

Question 2

By default, how many broadcast domains exist on a Layer 2 switch when all ports belong to the same VLAN?

junos jncia broadcast domain question ipcisco

A	Two.
B	One per switch port.
C	One per MAC address.
D	One per connected host.
E	One.

Question 3

We have an interface ge-2/0/2.1. What is the meaning of "ge"?

A	Gigabyte Enhanced
B	None of them
C	Gigabit Ethernet
D	Gigabyte Ethernet
E	Gigabit Enhanced

Question 4

Which command displays the differences between the candidate configuration and the active configuration?

A	show \| compare
B	compare active
C	show candidate
D	display compare
E	show configuration difference

Question 5

Which type of traffic is destined to the Routing Engine itself rather than simply passing through the device?

A	Transit traffic
B	Broadcast domain traffic
C	Forwarding traffic
D	Switching traffic
E	Exception traffic

Question 6

Which protocol is used to resolve an IPv4 address to a MAC address on a local network?

A	ARP
B	B) ICMP
C	DNS
D	SNMP
E	NTP

Question 7

We have an IP prefix 192.168.128.0/22 . How many hosts addresses can be used for this prefix? jncia subnetting question example ipcisco

A	1024
B	510
C	1022
D	512
E	514

Question 8

With which command can we access to CLI prompt from shell?

A	start cli
B	configure
C	run cli
D	cli
E	edit

Question 9

Which configuration contains changes that have been entered but not yet committed in Junos OS?

A	Active configuration
B	Forwarding configuration
C	Factory configuration
D	Candidate configuration
E	Rescue configuration

Question 10

What is a routing policy term typically composed of in Junos OS?

A	A VLAN ID and MAC address
B	Only a routing protocol
C	A username and login class
D	Only an interface and an IP address
E	Match conditions and actions

Question 11

What is the primary purpose of route preference in Junos OS?

A	To determine the Ethernet frame size.
B	To determine the VLAN ID.
C	To select between routes learned from different routing sources.
D	To assign an IP address to an interface.
E	To configure firewall filter terms.

Question 12

Which Decimal value is equal to 1101001?

A	104
B	100
C	105
D	101
E	103

Question 13

Which Junos component is primarily responsible for forwarding transit packets?

A	Routing Policy
B	Management Plane
C	Routing Engine
D	Packet Forwarding Engine
E	Candidate Configuration

Question 14

What is the primary purpose of Class of Service (CoS)?

A	To prioritize and manage different types of network traffic
B	To resolve MAC addresses
C	To provide user authentication
D	To convert IPv4 addresses to IPv6 addresses
E	To configure routing protocols automatically

Question 15

Which Network Mask is used to show 255.255.248.0?

A	/20
B	/21
C	/22
D	/23
E	/19

Question 16

With which command can we display the messages during the boot?

A	show boot messages
B	show system boot-messages
C	show system-messages
D	show boot-messages
E	show boot

Question 17

To check the reachability of a node, we use ... command.

A	ping
B	run
C	traceroute
D	do
E	check

Question 18

What is the primary difference between the routing table and the forwarding table?

jncia routing table forwarding table question

A	The routing table exists only on switches.
B	The routing table contains MAC addresses, while the forwarding table contains only IPv6 addresses.
C	The forwarding table contains only static routes.
D	The forwarding table is used to forward packets, while the routing table contains routing information used to determine routes.
E	There is no difference between them.

Question 19

What is the purpose of a firewall filter in Junos OS?

A	To create routing instances automatically
B	To resolve IPv4 addresses to MAC addresses
C	To select the Junos software version
D	To assign IP addresses automatically
E	To control packet processing based on defined match conditions and actions

Question 20

Which OSI layer primarily uses MAC addresses for Ethernet frame forwarding?

A	Application
B	Network
C	Physical
D	Data Link
E	Transport

Question 21

Which command must we use to view the link status of ge-1/1/1 interface ?

A	show interfaces ge-1/1/1 extensive
B	show interfaces ge-1/1/1 link
C	show interfaces ge-1/1/1 verbose
D	show interfaces ge-1/1/1 link-status
E	show interfaces ge-1/1/1 link-info

Question 22

To add ABC policy as export policy under BGP, we use ... command under the edit protocols bgp context.

A	none of them
B	export
C	export-policy
D	import-policy
E	import

Question 23

What happens when the commit command is successfully executed in Junos OS?

A	The active configuration is deleted.
B	The device returns to factory defaults.
C	The rescue configuration becomes active.
D	The candidate configuration is discarded.
E	The candidate configuration becomes the active configuration.

Question 24

Which component of a Junos device is primarily responsible for maintaining routing tables and running routing protocols?

A	Firewall Filter
B	Forwarding Table
C	Packet Forwarding Engine
D	Transit Interface
E	Routing Engine

Question 25

How many bits does an Ipv4 address has?

A	24
B	48
C	20
D	32
E	128

Question 26

Which one is a valid IPv6 address?

A	2001:AA::1122:0:0::0:1245:123
B	2001:AAAA:1122:0:0:0:1245:123
C	2001:AAAA:0:0:1122:0:0:0:1245:123
D	2001:AAAA::11:22::1245:123
E	2001:AAAA::1122::1245:123

Question 27

Which Junos CLI mode is used to modify the device configuration?

A	Forwarding mode
B	Operational mode
C	Configuration mode
D	Interface mode
E	Monitor mode

Question 28

When multiple routes match a destination IP address, which route is selected based on longest-prefix match?

A	The route learned first
B	The route with the highest metric
C	The route with the shortest prefix
D	The route with the most specific prefix
E	The oldest route

Question 29

Which two statements describe UDP?(Choose Two)

A	It uses a three-way handshake.
B	It is connectionless.
C	It guarantees packet delivery.
D	It has lower protocol overhead than TCP.
E	It provides retransmission of lost data.

Question 30

Which command is used to enter configuration mode from operational mode in Junos OS?

A	configure
B	config
C	edit
D	set
E	commit

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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 1

JNCIA-JUNOS JN0-106 Practice Questions 1

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