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Describe what a critical system is (3 Marks)

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Describe what a critical system is (3 Marks)

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  1. Definition (1 Mark): A critical system is a type of computer system or network that is essentially important in ensuring the smooth and efficient operation of an organization or process. It is a system whose failure or malfunction may result in one or more of the following outcomes: life-threatening situation, loss of valuable data, serious financial loss, or severe damage to the reputation of an organization.

  2. Importance (1 Mark): Critical systems are vital because they are often responsible for managing and controlling high-risk processes and infrastructures, such as nuclear power plants, air traffic control systems, and financial systems. Their failure could lead to catastrophic consequences, hence the need for high reliability, availability, and security.

  3. Examples (1 Mark): Examples of critical systems include the control systems for nuclear power plants, the computer systems that manage air traffic control, the systems that manage the operation of hospitals, and the systems that control the operation of financial markets. These systems are considered critical because their failure could lead to catastrophic consequences.

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