Network security

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1
Question 1
Hard

A firewall protects a computer network from unauthorized access.

Draw a flowchart to show how a packet-filtering firewall processes an incoming packet to decide whether to drop it or allow it through the network.

Here are some flowchart symbols you should use:

  • Terminator Terminator symbol: a rounded rectangle with rounded corners used for Start and End.
  • Process Process symbol: a flat rectangle used for actions or calculations.
  • Decision Decision symbol: a diamond shape with branching paths for logical choices.
  • Input / Output Input / Output symbol: a parallelogram used for data entry or display.

You may not need to use all of the flowchart symbols.

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Network security Questions

  1. GCSE
  2. /Computer Science
  3. /Network security