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Juniper JN0-102 Practice Tests, Mock Tests & Study Resources, Juniper JNCIA-Junos Certification | SPOTO

SPOTO offers everything you need to dominate the Juniper Networks Certified Associate - Junos (JNCIA-Junos) exam. We provide a robust library of practice tests, including free tests and a massive pool of online exam questions. Unlike unreliable exam dumps, SPOTO focuses on high-quality exam questions and answers that mirror the real exam. Sharpen your skills with our mock exams and comprehensive exam materials, all built with the latest practice tests. This combination helps you pinpoint your strengths and weaknesses, ensuring you're fully prepared to conquer the JNCIA-Junos exam and advance your networking career.
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Question #1
-- Exhibit -- traceroute to 10.1.15.2 (10.1.15.2), 30 hops max, 40 byte packets 1 10.1.36.1 (10.1.36.1) 0.651 ms 7.834 ms 0.506 ms 2 10.1.23.1 (10.1.23.1) 0.5 ms 0.5 ms 0.5 ms 3 * * * 4 * * * -- Exhibit -- Referring to the exhibit, which statement is correct?
A. The packets have exceeded the time-to-live value
B. There is a loop
C. The asterisks indicate a response time out
D. The asterisks indicate that the traceroute is completed
View answer
Correct Answer: BDE

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Question #2
Which two statements are true about TCP communication? (Choose two.)
A. The receiver acknowledges the final packet in each communications stream
B. The receiver adds sequencing numbers to the packets received
C. The sender adds sequencing numbers to the packets it sends
D. The receiver acknowledges each packet it receives from the sending device
View answer
Correct Answer: D
Question #3
Which simplified IPv6 address is the same as the IP address 2001:0000:1000:0000:0000:cbff:0020:0001/64?
A. 2001::1::cbff:2:0001/64
B. 2001::1000::cbff:20:1/64
C. 2001:0:1000::cbff:20:1/64
D. 2001:0:1:0:0:cbff:2:1/64
View answer
Correct Answer: C
Question #4
-- Exhibit -- [editsnmp] user@router# show communityCommunityA { authorization read-only; clients { 192.168.1.0/28; } } trap-groupgroupA { categories { link; } targets { 192.168.100.1; 192.168.200.1; } } -- Exhibit -- Referring to the exhibit, what is the purpose of the targets section of the configuration?
A. It defines which devices will be sending traps
C. It defines the IP addresses of management systems that can access the device
D. It specifies which devices can be polled for SNMP data
View answer
Correct Answer: ACD
Question #5
What are three characteristics of UDP? (Choose three.)
A. UDP is faster than TCP
B. UDP operates at the Transport Layer
C. UDP is connection-oriented
D. UDP data is sent best-effort
E. UDP is more reliable than TCP
View answer
Correct Answer: CD
Question #6
Random early detection (RED) is associated with which class of service component?
A. classification
B. policing
C. queuing
D. scheduling
View answer
Correct Answer: C
Question #7
During a password recovery, what is the next step after configuring the system to boot into single-user mode?
A. Reset the root password
B. Press the space bar
C. Type recovery
D. Press the "Enter" key
View answer
Correct Answer: D
Question #8
What are two purposes of a forwarding class? (Choose two.)
A. to identify traffic that should be dropped
B. to classify traffic
C. to identify traffic that should receive common treatment
D. to assign traffic to output queues
View answer
Correct Answer: A
Question #9
Which two statements are true about terms in a routing policy? (Choose two.) A. A routing policy cannot have more than one term.
B. If a term does not contain a from statement, all routes match
C. If a term does not contain a from statement, the Junos OS will not commit
D. A then statement is not mandatory in a term
View answer
Correct Answer: ADE
Question #10
What is the default import routing policy for OSPF?
A. Accept all OSPF routes and install them into the inet
B. Accept all OSPF routes and install them into the inet7
C. Accept all OSPF routes and install them into the inet4
D. Accept all OSPF routes and install them into the inet
View answer
Correct Answer: D
Question #11
You issue the command telnet interface ge-1/1/0 10.10.10.1 source 192.168.100.1 bypass-routing. Which statement is correct?
A. The bypass-routing parameter is ignored when using private IP addressing
B. The telnet session will have the source IP address 10
C. The telnet session will connect to the neighboring device's interface ge-1/1/0
D. Return traffic for the telnet session might not arrive at interface ge-1/1/0
View answer
Correct Answer: C
Question #12
What information is used by a switch to forward an Ethernet frame to its destination? A. IP address
B. destination MAC address
C. ARP table entry
D. FCS checksum
View answer
Correct Answer: BCD
Question #13
Real 3 Juniper JN0-102 Exam Which simplified IPv6 address is the same as the IP address 2001:0000:1000:0000:0000:cbff:0020:0001/64?
A. 2001::1::cbff:2:0001/64
B. 2001::1000::cbff:20:1/64
C. 2001:0:1000::cbff:20:1/64
D. 2001:0:1:0:0:cbff:2:1/64
View answer
Correct Answer: C
Question #14
Which command do you use as a valid way to view the PICs within a router as well as the PICs' serial numbers?
A. show chassis hardware
B. show chassis interfaces
C. show chassis pic
D. show chassis inventory
View answer
Correct Answer: A
Question #15
Which login class permission will allow a user to use the telnet utility?
A. network permission
B. maintenance permission
C. supervisor permission
D. shell permission
View answer
Correct Answer: AC
Question #16
By default, what are three valid routing tables? (Choose three.)
A. inet
B. inet4
D. inet6
E. inet
View answer
Correct Answer: ABC
Question #17
What is the network address for the 10.13.147.100/19 host?
A. 10
B. 10
C. 10
D. 10
View answer
Correct Answer: C
Question #18
-- Exhibit -- user@router> show route protocol static inet.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 192.168.1.128/27 *[Static/5] 00:03:13 >to 10.20.106.10 via fe-0/0/5.1 192.168.1.144/29 *[Static/5] 00:03:13 >to 10.20.14.131 via ge-0/0/0.0 192.168.1.192/27 *[Static/5] 00:03:13 >to 10.18.1.1 via ge-0/0/1.0 192.168.1.128/28 *[Static/5] 00:01:06 >to 10.20.14.130 via ge-0/0/0.0 -- Exhibit -- Given the routing entries shown in the exhibit, which
A. 10
B. 10
C. 10
D. 10
View answer
Correct Answer: C
Question #19
What is a valid IPv6 address?
A. 00:05:85:23:45:67
B. 127
C. 2001:0db8:3000:2215:0000:0000:aaaa:1111
D. 49
View answer
Correct Answer: B
Question #20
Which two commands will successfully create ping traffic? (Choose two.)
A. user@router# ping 10
C. user@router> ping 10
D. user@router> request ping 10
View answer
Correct Answer: A
Question #21
You want to log in to the router and make a configuration change. After logging in as the root user, what is the next command you must enter?
A. enable
B. configure
C. edit
D. cli
View answer
Correct Answer: A
Question #22
Which command do you issue to upgrade the current software on Junos devices?
A. request system software replace
B. request system software install
C. request system software add
D. request system software upgrade
View answer
Correct Answer: D
Question #23
Which statement is true regarding the password-recovery process?
A. You must have a console connection
B. You cannot set the console port to an insecure mode
C. You must press the Enter key so that you can boot into single-user mode
D. When prompted to enter the full pathname of the shell, you must press the Enter key
View answer
Correct Answer: A
Question #24
Real 4 Juniper JN0-102 Exam Which layer in the TCP/IP model is responsible for delivering packets to their destination?
A. Application Layer
B. Transport Layer
C. Internet Layer D
View answer
Correct Answer: C
Question #25
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 #26
Which two fields are found in an Ethernet frame header? (Choose two.)
A. TTL
B. flags
C. checksum
D. type
View answer
Correct Answer: BD
Question #27
Which two commands would you use to view OSPF routes? (Choose two.)
A. show ip route ospf
B. show ospf routes
C. show route protocol ospf
D. show route
View answer
Correct Answer: C
Question #28
Which two design goals describe the Junos OS design? (Choose two.)
A. clean separation of security and routing policies
B. clean separation of control and forwarding planes
C. modularization of multiple software processes
D. a single hardware platform for all software applications
View answer
Correct Answer: A
Question #29
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 #30
Which statement is true regarding the Network Time Protocol (NTP) on Junos devices? A. MD5 authentication is supported by the Junos OS.
B. Server mode is not supported by the Junos OS
C. The Junos OS can provide a primary time reference
D. The Junos OS does not support the use of a boot server
View answer
Correct Answer: AB
Question #31
Which command will delete the current rescue configuration?
A. user@router# system delete configuration rescue
B. user@router> request system configuration rescue delete
C. user@router# delete rescue configuration
D. user@router> file delete rescue-configuration
View answer
Correct Answer: A
Question #32
What are three physical interface properties? (Choose three.)
A. payload scrambling B
C. FCS
D. link speed
E. IP address
View answer
Correct Answer: A
Question #33
What is the default route preference value for EBGP?
A. 20
B. 100
C. 170
D. 200
View answer
Correct Answer: B
Question #34
-- Exhibit -- interfaces { ge-0/0/8 { unit 0 { family inet { address 192.168.1.1/24; } } } ge-0/0/9 { unit 0 { family inet { address 192.168.10.1/24; } } } } -- Exhibit -- Referring to the exhibit, which command would you use to add an additional address to the ge-0/0/9.0 interface?
A. [edit interfaces ge-0/0/9 unit 0]user@router# set family inet address /24
B. [edit interfaces ge-0/0/9 unit 0]user@router# set family inet secondary-address /24
C. [edit interfaces ge-0/0/9 unit 0]user@router# set family inet address /24 secondary
D. [edit interfaces ge-0/0/9 unit 0]user@router# set family inet address-secondary /24
View answer
Correct Answer: D
Question #35
Which statement describes transit traffic?
A. Traffic addressed to the chassis that requires some form of special handling by the RE before it can be forwarded out an egress port
B. Traffic that enters an ingress port, is compared against the forwarding table, and is forwarded out an egress port
C. Any traffic that requires the generation of an ICMP message
D. Traffic that requires some form of special attention and does not pass through the device
View answer
Correct Answer: BC
Question #36
What must be configured prior to the first commit after factory defaults are loaded?
A. root authentication
B. default gateway
C. host name
D. management services
View answer
Correct Answer: D
Question #37
What are three benefits of using IPv6? (Choose three.) Real 10 Juniper JN0-102 Exam
A. IPv6 supports a greater level of security by integrating features that were optional add-ons in IPv4
B. IPv6 reduces administrative overhead using stateless address autoconfiguration for hosts
C. IPv6 eliminates the need for private to public NAT using a large address pool
D. IPv6 provides backward compatibility with IPv4 using the Next Header field
E. IPv6 represents large IP addresses using dotted decimal notation
View answer
Correct Answer: BD
Question #38
Which two statements are true about optical networks? (Choose two.)
A. SONET and SDH both use time-division multiplexing
B. An optical transport network system uses time-division multiplexing
C. SONET and SDH both use wavelength-division multiplexing
D. An optical transport network system uses wavelength-division multiplexing
View answer
Correct Answer: AD
Question #39
Real 6 Juniper JN0-102 Exam Which statement is correct regarding IPv6 addresses? A. An IPv6 address consists of 128 bits separated into eight 16-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 64 bits separated into eight 8-bit hexadecimal sections
View answer
Correct Answer: C
Question #40
Which layer in the TCP/IP model is responsible for delivering packets to their destination? A. Application Layer
B. Transport Layer
C. Internet Layer
D. Network Access Layer
View answer
Correct Answer: D
Question #41
Which three user authentication methods are supported by the Junos OS? (Choose three.)
A. RADIUS
B. CHAP
C. local user database
D. TACACS+
E. PAP
View answer
Correct Answer: C
Question #42
In dotted decimal notation, what is the equivalent of 11010101 01000010 01111111 11000010?
A. 213
B. 214
C. 212
D. 213
View answer
Correct Answer: AC
Question #43
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
C. 192
D. 192
View answer
Correct Answer: A

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