What is the primary function of a firewall in a computer network ?
2025
What is the primary function of a firewall in a computer network ?
- A.
To prevent data encryption
- B.
To block unauthorized access and traffic
- C.
To increase data speed
- D.
To create secure passwords
Attempted by 2 students.
Show answer & explanation
Correct answer: B
A firewall acts as a security barrier between trusted internal networks and untrusted external networks. It monitors incoming and outgoing traffic based on predetermined security rules to block unauthorized access.