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JN0-105 Practice Exam Questions, Junos Associate JNCIA -Junos | SPOTO

The JN0-105 exam is a key certification for networking professionals pursuing the Junos Associate JNCIA-Junos credential. It validates your knowledge of Junos OS, basic networking concepts, and device configuration. To help candidates succeed, SPOTO offers a comprehensive set of JN0-105 Practice Exam Questions designed to mimic the actual exam. These expertly crafted questions focus on core topics such as routing protocols, network fundamentals, and troubleshooting. Practicing with SPOTO’s materials allows candidates to test their knowledge, identify areas needing improvement, and gain confidence. Whether you’re new to networking or enhancing existing skills, these practice questions are an essential tool for passing the Junos Associate JNCIA-Junos certification exam. With SPOTO, you’ll be well-prepared to achieve success in your Juniper Networks certification journey.
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Question #1
Which two routing policy actions are considered policy flow control actions in the Junos OS? (Choose two.)
A. accept
B. next hop
C. next policy
D. next term
View answer
Correct Answer: AB

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Question #2
Which of the following protocols uses both TCP and UDP?
A. FTP
B. SMTP
C. Telnet
D. DNS
View answer
Correct Answer: D
Question #3
Which routing instance type is used for filter-based forwarding applications?
A. layer2-control
B. vpls
C. forwarding
D. vrf
View answer
Correct Answer: C
Question #4
Click the Exhibit button. What happens if the packet shown in the exhibit is received by a device running Junos OS?
A. The packet is received by the RE first and then redirected to the PFE
B. The packet is received by the PFE first and then redirected to the RE
C. The packet is handled by the PFE alone
D. The packet is handled by the RE alone
View answer
Correct Answer: B
Question #5
How does the PFE determine how to forward transit traffic?
A. The PFE determines network destinations itself based on the RE's routing table
B. The PFE uses the forwarding table provided by the RE
C. The PFE performs a destination lookup based on its own routing table
D. The PFE uses the routing table provided by the RE
View answer
Correct Answer: B
Question #6
What is the decimal equivalent of 00000100?
A. 2
B. 4
C. 9
D. 12
View answer
Correct Answer: B
Question #7
Which word starts a command to display the operational status of a Junos device?
A. put
B. set
C. show
D. get
View answer
Correct Answer: C
Question #8
Click the Exhibit button Referring to the exhibit, you are unable to see any traffic coming on interface ge-0/0/0. What is causing this problem?
A. The ge-0/0/0 interface is administratively down
B. The ge-0/0/0 interface has flow control disabled
C. The ge-0/0/0 interface's physical link is down
D. The ge-0/0/0 interface has the link-mode set to half-duplex
View answer
Correct Answer: C
Question #9
Click the Exhibit button. What is the next hop for a packet destined to 192.168.80.98 as shown in the exhibit?
A. 192
B. 172
C. 172
D. 172
View answer
Correct Answer: D
Question #10
Which two conditions must exist in a Junos device for traffic to transit the device to a specific destination? Choose Two
A. A forwarding table entry for that destination must exist
B. A routing policy must be in place on the device
C. A firewall filter must exist to allow traffic to reach that destination
D. A routing table entry for that destination must exist
View answer
Correct Answer: AD
Question #11
Which protocol connects multiple autonomous systems?
A. OSPF
B. IS-IS
C. IBGP
D. EBGP
View answer
Correct Answer: A
Question #12
A router contains both a static route and an OSPF route for the 172.18.100.0/24 prefix in its routing table. The router is configured to use the factory-default Junos OS routing preference values. In this scenario, which statement is correct?
A. The OSPF route will be active because of a higher default preference value
B. The OSPF route will be active because of a lower default preference value
C. The static route will be active because of a lower default preference value
D. The static route will be active because of a higher default preference value
View answer
Correct Answer: C
Question #13
Which three statements are true about IPv6 linl local addresses? (Choose three.)
A. They begin with the prefix fe80::/64
B. They can be assigned manually or dynamically
C. They are not guaranteed to be unique outside of the network segment
D. They are optional adddresses
E. They provide reachability to the internet
View answer
Correct Answer: ABC
Question #14
Which two commands would you use to reset the candidate configuration to the active configuration? (Choose two.)
A. rollback 0
B. rollback 1
C. rollback 2
D. rollback
View answer
Correct Answer: AD
Question #15
What are two benefits of a modular operating system? (Choose two.)
A. ach module runs in its own protected memory space
B. t enables the independent restart of each module as necessary
C. malfunction in one module causes a full system shutdown
D. t enables CPU scheduling strictly using kernel system calls
View answer
Correct Answer: AB
Question #16
Referring to the exhibit, which command will change the 172.16.10.1/24 IP address to 172.16.100.1/24 IP address?
A. copy interfaces ge-0/0/2 unit 0 family inet address 172
B. set interfaces ge-0/0/2 unit 0 family inet address 172
C. rename interfaces ge-0/0/2 unit 0 family inet address 172
D. insert interface ge-0/0/2 unit 0 family inet address 172
View answer
Correct Answer: C
Question #17
In the show I compare rollback 49 command, what is the purpose of the I?
A. The | is a shortcut to redirect output from a command line to a file
B. The filters the output of the show command
C. The | is used to represent an "either or" statement
D. The | changes the command from an operational command to a configuration mode command
View answer
Correct Answer: B
Question #18
What are three valid software release designations for the junos OS? (Choose three.)
A. X
B. R
C. T
D. Z
E. B
View answer
Correct Answer: ABE
Question #19
Click the Exhibit button. Referring to the exhibit, a firewall filter is configured and applied to the ge-0/0/1 interface. In this scenario, which statement is correct?
A. All traffic to destination 10
B. All traffic entering on interface ge-0/0/1 is discarded
C. All traffic entering on interface ge-0/0/1 is accepted
D. All traffic from source 10
View answer
Correct Answer: D
Question #20
You are troubleshooting an issue and want to monitor syslog in real time. Which operational command accomplish this task?
A. Show log message
B. Monitor start message
C. Show log message | refresh i
D. Monitor traffic interface fxp0
View answer
Correct Answer: B
Question #21
Which parameter would you use to prohibit the redistribution of a static route used for management traffic?
A. no-readvertise
B. discard
C. reject
D. passive
View answer
Correct Answer: A
Question #22
Exhibit: Refer to exhibit, What will be the result?
A. The device will boot in a multi-user mode at the configuration prompt
B. The device will boot in a Single-user mode at the operational prompt
C. The device will boot in a multi-user mode at the shell prompt
D. The device will boot in a Single-user mode at the shell prompt
View answer
Correct Answer: A
Question #23
What is the initial prompt displayed when logging in as the root user?
A. root@router>
B. root@router%
C. root@router#
D. root@router*
View answer
Correct Answer: B
Question #24
Which attribute must be defined when configunng a non-root user in Junos OS?
A. class
B. uid
C. authentication
D. full-name
View answer
Correct Answer: A
Question #25
Which two statements are true regarding dynamic routing? (Choose two)
A. Dynamic routing is used when absolute control of routing parameters is necessary
B. Dynamic routing allows a device to automatically reroute traffic around a failure
C. Participating devices dynamically learn routing information from each other
D. Dynamic routing requires more administrative overhead than static routing
View answer
Correct Answer: BC
Question #26
Which three statements describe OSPF? (Choose three)
A. OSPF must operate between different autonomous system
B. OSPF calculates the best path to each destination
C. OSPF is a link-state IGP
D. OSPF uses areas to incorporate hierarchy and to allow for scalability
E. OSPF uses a distance-vector algorithm to calculate routing cost
View answer
Correct Answer: BCD
Question #27
The IP address 10.1.1.1 belongs to which class of IP address space?
A. Class A
B. Class B
C. Class C
D. Class D
View answer
Correct Answer: A
Question #28
A Junos device is configured with multiple routing protocols to the same destination prefix. By Default, which route will be active in the forwarding table?
A. A static route
B. An OSPF route
C. An IS-IS route
D. A BGP route
View answer
Correct Answer: A
Question #29
What is a valid IPv6 address?
A. 00:05:85:23:45:67
B. 127
C. 2001:0db8:3000:2215:0000:0000:aaaa:llll
D. 49
View answer
Correct Answer: C
Question #30
What are two modes of unicast reverse path forwarding? (Choose two.)
A. Strict
B. High
C. Low
D. Loose
View answer
Correct Answer: AD
Question #31
You suspect a duplicate MAC address on a subnet. You want to display the MAC, errors, and statistics of the ge-O/0/0 interface. Which command will accomplish this task?
A. show arp
B. show interface ge-O/0/0 extensive
C. show ethernet-switching table
D. show interface terse
View answer
Correct Answer: B
Question #32
What will the help syslog UI_DBASE_LOGOUT_EVENT command show you?
A. It will show you the options you can use with sysiog UI_DBASE_LOGOUT_EVENT
B. It will show you only UI_DBASE_LOGOUT_EVENT messages in the system log
C. It will only show you syslog messages without UI_DBASE_LOGOUT_EVENT
D. It will describe the UI_DBASE_LOGOUT_EVENT message code
View answer
Correct Answer: D
Question #33
What is the purpose of the load merge command?
A. to add or delete variables from the configuration based on the contents of a specified path file
B. to completely overwrite the current configuration with the configuration you load
C. to combine the current configuration with the configuration you load
D. to look for a replace tag in the configuration you load
View answer
Correct Answer: C
Question #34
Which three protocols are connectionless? (Choose three.)
A. ICMP
B. Telnet
C. SSH
D. TFTP
E. DNS
View answer
Correct Answer: ADE
Question #35
Which two ping command parameters would be used to troubleshoot MTU issues? (Choose two.)
A. ping do-not-fragment
B. ping rapid
C. ping verbose
D. ping size
View answer
Correct Answer: AC
Question #36
Which two statements describe PFE functions are true?
A. The PFE implements rate limiting using policers
B. The PFE stores the master copy of the layer 2 and layer 3 forwarding tables
C. The PFE provides access to the CLI and Jweb
D. The PFE stores a local copy of the layer 2 and layer 3 forwarding tables
View answer
Correct Answer: AD
Question #37
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. monitor start messages
C. show log messages
D. show log traceoptions
View answer
Correct Answer: C
Question #38
Routing policies contain which two types of statements? (Choose two.)
A. from
B. then
C. default
D. and
View answer
Correct Answer: AB
Question #39
What is the default route preference for OSPF internal?
A. 100
B. 150
C. 5
D. 10
View answer
Correct Answer: D
Question #40
You are attempting to upgrade the Junos OS on your device, but there is not enough space to complete the upgrade. Which parameter, added to the request system software add command, would solve the problem?
A. no-validate
B. no-copy
C. validate
D. force
View answer
Correct Answer: B
Question #41
For the interface ge-1/2/3.4, what does "ge" represent?
A. SONET/SDH
B. Gigabit Ethernet
C. Aggregated Ethernet
D. GRE
View answer
Correct Answer: B
Question #42
Which two keystrokes will auto-complete a command? (Choose two.)
A. Esc
B. Tab
C. Spacebar
D. End
View answer
Correct Answer: BC
Question #43
Which keystroke combination allows users to move the cursor to the end of the command line without deleting text?
A. Ctrl + a
B. Ctrl + e
C. Ctrl + u
D. Ctrl + w
View answer
Correct Answer: B
Question #44
You are asked to enable the configuration archival feature on your device running Junos OS. Which two backup scenarios exist? (Choose two.)
A. When a user performs a commit operation
B. When a user logs out of the device
C. When a specific time interval passes
D. When a user logs in to the device
View answer
Correct Answer: AC
Question #45
What does the "3" in Junos version 14.2R3.2 represent?
A. a single-threaded version of the Junos OS
B. a major release number
C. a minor release number
D. a service build number
View answer
Correct Answer: C
Question #46
Click the Exhibit button. Referring to the exhibit, which statement is correct about traffic received on the ge-0/0/1.0 interface?
A. All traffic will be silently dropped
B. All traffic will be accepted
C. All traffic will be dropped and a UDP message sent back to the source
D. All traffic will be dropped and an ICMP notification sent back to the source
View answer
Correct Answer: C
Question #47
You must configure the 2bfc:0000:0000:beef:0217:cbff:0000:5c85 IPv6 address on your device. In this scenario, which three addresses are correct? (Choose three.)
A. 2bfc::beef:217:cbff:0:5c85
B. 2bfc:0:0:beef:0217:cbff:0:5c85
C. 2BFCnBEEF:0217:CBFF:0:5C85
D. 2bfc:0:beef:0217:cbff:0:5c85
E. 2BFC::BEEF:217:CBFF::5C85
View answer
Correct Answer: ABC
Question #48
You have configure 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. security policies
B. hostname
C. date/time
D. root authentication
View answer
Correct Answer: D
Question #49
You are connected to your Junos device using an SSH connection to the fxp0 interface. No other interface are currently configured beyond their default setting. You commit a configuration that makes the fxp0 interface unreachable from your management network. In this scenario, how would you re-establish communication with the device?
A. Unplug the network cable and plug it back in
B. Power off and power on the device
C. Establish an SSH connection to the loopback interface
D. Connect to the console of the device
View answer
Correct Answer: D
Question #50
What is an "X" release of the Junos OS?
A. a standard feature release
B. a special feature release
C. a feature velocity release
D. a feature beta release
View answer
Correct Answer: B
Question #51
Which command prompt indicates that you are in operational mode?
A. user @ router and
B. user @ router #
C. user @ router $
D. user @ router >
View answer
Correct Answer: D
Question #52
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
View answer
Correct Answer: A

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