JNCIA-Junos: Juniper Networks Certified Associate – Junos (2022) — Question 23

Which two statements about firewall filters are correct? (Choose two.)

Answer options

• A. An input filter is used to control routes that are accepted by the local routing table
• B. An output filter determines the routes in the local routing table that are advertised to peers
• C. An input filter is used to control incoming traffic on a specific interface
• D. An output filter is used to control outgoing traffic on a specific interface

Correct answer: C, D

Explanation

The correct answers are C and D because an input filter specifically manages the incoming traffic on an interface, while an output filter manages the outgoing traffic. Options A and B are incorrect because they refer to route management rather than traffic control, which is not the primary function of firewall filters.