Juniper JN0-102 Dumps
| Exam Code | JN0-102 |
| Exam Name | Junos - Associate (JNCIA-Junos) |
| Update Date | 31 Aug, 2026 |
| Total Questions | 141 Questions Answers With Explanation |
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Question # 1
What are three terminating actions for firewall filters? (Choose three.)
A. reject
B. drop
C. permit
D. accept
E. discard
Question # 2
Which two statements are correct about Layer 2 broadcast frames? (Choose two.)
A. Layer 2 broadcast frames are processed by all devices on the same VLAN.
B. Layer 2 broadcast frames are discarded by routers that connect to multiple VLANs.
C. Layer 2 broadcast frames are relayed by routers to all connected VLANs.
D. Layer 2 broadcast frames are relayed by switches to devices on the same VLAN.
Question # 3
Which command do you use to display the messages seen during the last system boot?
A. show system boot-messages
B. show chassis messages
C. show file system boot-messages
D. show boot-log messages
Question # 4
What represents the binary equivalence of 148?
A. 10010110
B. 11010010
C. 10011100
D. 10010100
Question # 5
A packet is evaluated against three user-defined terms within a firewall filter and no match is found. What correctly describes the action the firewall filter will take for this packet?
A. The filter will permit the packet and take no additional action.
B. The filter will reject the packet and send an ICMP message back to the sender.
C. The filter will discard the packet and take no additional action.
D. The filter will permit the packet and write a log entry to the firewall log.
Question # 6
What is the default import routing policy for OSPF?
A. Accept all OSPF routes and install them into the inet.3 routing table.
B. Accept all OSPF routes and install them into the inet7.0 routing table.
C. Accept all OSPF routes and install them into the inet4.0 routing table.
D. Accept all OSPF routes and install them into the inet.0 routing table.
Question # 7
What is the decimal equivalent of 10101010?
A. 182
B. 180
C. 172
D. 170
Question # 8
Which statement is true about a routing table?
A. It contains routes learned dynamically only.
B. It finds the best path to each destination by using a modified shortest-path-first calculation.
C. It contains only active BGP routes.
D. It contains all accepted routes to all destinations.
Question # 9
In the MAC address 00:90:69:9f:ea:46, what represents the Organizationally Unique Identifier (OUI)?
A. 69:9f:ea:46
B. 00:90:69:9f
C. 9f:ea:46
D. 00:90:69
Question # 10
Which command will display only direct routes?
A. show route
B. show route inet.0 direct
C. show ip route direct
D. show route protocol direct
Question # 11
You have been assigned the /24 network and need to segment it into at least 60 subnets. Which network mask meets this requirement?
A. /27
B. /28
C. /29
D. /30
Question # 12
What are three valid match criteria in a firewall filter applied to a Layer 3 interface? (Choose three.)
A. IP address
B. MAC address
C. protocol
D. port
E. session ID
Question # 13
What is the default route preference value for EBGP?
A. 20
B. 100
C. 170
D. 200
Question # 14
-- 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.
Question # 15
What are two valid match criteria for a routing policy? (Choose two.)
A. OSPF area ID
B. prefix list
C. port
D. time-to-live (TTL)
Question # 16
What is the purpose of a network mask?
A. It is used to identify the maximum hop count of a subnetwork.
B. It is used to identify an IP address as either private or public.
C. It is used to identify the network to which an IP address belongs.
D. It is used to identify the total number of bits present in an IP address.
Question # 17
You issue the command telnet interface ge-1/1/0 10.10.10.1 source 192.168.100.1 bypassrouting. 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 10.10.10.1.
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.
Question # 18
What represents the decimal equivalence of 11100101?
A. 5
B. 93
C. 177
D. 229
Question # 19
Which three protocols use UDP as a transport protocol by default? (Choose three.)
A. HTTP
B. TFTP
C. DNS
D. SNMP
E. SMTP
Question # 20
-- Exhibit - user@router> show route inet.0: 9 destinations, 9 routes (9 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 10.10.10.91/32 *[Direct/0] 00:09:40 >via lo0.0 10.10.10.92/32 *[OSPF/10] 00:01:50, metric 1 >to 172.16.1.2 via ge-0/0/2.0 100.100.1.0/24 *[Static/5] 00:01:50 Reject 172.16.1.0/24 *[Direct/0] 00:06:09 >via ge-0/0/2.0 172.16.1.1/32 *[Local/0] 00:06:09 Local via ge-0/0/2.0 192.168.0.0/16 *[Aggregate/130] 00:00:06 Reject 192.168.0.0/17 *[Aggregate/130] 00:00:06 >to 172.16.1.2 via ge-0/0/2.0192.168.50.0/24 *[Static/5] 00:00:06 >to 172.16.1.2 via ge-0/0/2.0 192.168.51.0/24 *[Static/5] 00:00:06 >to 172.16.1.2 via ge-0/0/2.0 user@router> show configuration policy-options policy-statement demo { term 1 { from { protocol aggregate; route-filter 192.168.0.0/16 longer; } then accept; } } user@router> show configuration protocols ospf export demo; area 0.0.0.0 { interface ge-0/0/2.0; } -- Exhibit - Given the configuration and routing table shown in the exhibit, which routes will be advertised to OSPF neighbors because of the demo policy?
A. 192.168.0.0/16 only
B. 192.168.0.0/17 only
C. 192.168.0.0/16 and 192.168.0.0/17
D. 192.168.0.0/17, 192.168.50.0/24, and 192.168.51.0/24
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