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Juniper JN0-105 Exam
Junos, Associate (JNCIA-Junos) (Page 4 )

Updated On: 12-Jan-2026
Page 4 of 26
PDF with 110 Questions

What is the maximum number of rollback configuration files that the Junos OS will store?

  1. 65
  2. 50
  3. 25
  4. 19

Answer(s): B

Explanation:

Junos OS can store up to 50 rollback configuration files, making B the correct answer. These rollback files allow administrators to revert to previous configurations, providing a safety net that facilitates recovery from configuration errors or undesired changes



You issue the telnet 10.10.10.1 source 192.168.100.1 command.
Which two statements are correct in this scenario? (Choose two.)

  1. The telnet session will have a source address of 10.10.10.1.
  2. The telnet session will have a destination address of 192.168.100.1.
  3. The telnet session will have a destination address of 10.10.10.1.
  4. The telnet session will have a source address of 192.168.100.1.

Answer(s): C,D

Explanation:

In the given telnet command, "telnet 10.10.10.1 source 192.168.100.1," the destination address of the telnet session is 10.10.10.1, and the source address of the session is specified as 192.168.100.1, making C and D the correct answers. This command instructs the telnet client to use the specified source IP address when establishing the connection to the destination.



What are two attributes of the UDP protocol? (Choose two.)

  1. UDP is more reliable than TCP.
  2. UDP is always slower than TCP.
  3. UDP is best effort.
  4. UDP is connectionless.

Answer(s): C,D

Explanation:

UDP (User Datagram Protocol) is known for being connectionless (D) and providing best-effort delivery without the reliability mechanisms present in TCP (C). This means that UDP does not establish a connection before sending data and does not guarantee delivery, order, or error checking, making it faster but less reliable than TCP.



You are creating a new policy to accept and redistribute routes into your IGP. In this scenario, which match criteria would you use to identify the route prefixes to select?

  1. instance
  2. route-type
  3. neighbor
  4. route-filter

Answer(s): D

Explanation:

When creating a new policy to accept and redistribute routes into your Interior Gateway Protocol (IGP), the route-filter match criteria is used to identify the route prefixes to select. The route-filter statement specifies which prefixes should be matched in a policy. This allows for precise control over which routes are accepted and redistributed, facilitating efficient and secure routing policies within the network.


Reference:

"show | display set | match ge-0/0/2" indicating command examples and match criteria from Useful Juniper Commands.txt.
Juniper official documentation: Routing Policy and Firewall Filters Configuration Guide.



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