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      Question

      What is the primary function of a firewall in a

      network?
      A To increase internet connection speed Correct Answer Incorrect Answer
      B To monitor and filter incoming and outgoing network traffic based on security rules Correct Answer Incorrect Answer
      C To assign IP addresses to network devices Correct Answer Incorrect Answer
      D To convert analog signals to digital Correct Answer Incorrect Answer
      E To compress data for faster transmission Correct Answer Incorrect Answer

      Solution

      A firewall enforces an access control policy by permitting or blocking traffic based on rules (IP addresses, ports, protocols, application layer content). Types include packet-filtering, stateful inspection, application-layer (proxy), and Next-Generation Firewalls (NGFW). Mandatory for all bank networks as per RBI guidelines.

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