What is the primary purpose of a firewall in network security?

  • Encrypting data
  • Filtering incoming and outgoing traffic
  • Managing hardware resources
  • Monitoring network traffic
The primary purpose of a firewall in network security is to filter incoming and outgoing traffic based on predetermined security rules. It acts as a barrier between trusted internal networks and untrusted external networks, helping to prevent unauthorized access and protect sensitive data. Firewalls can be hardware-based or software-based.
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