A company's e-commerce website uses a redundant server setup. When the primary server fails, a secondary server automatically takes over all processing and user requests without any noticeable service interruption for customers. Which security concept is primarily demonstrated by this redundant server configuration?
The correct answer is Availability. This concept ensures that systems and data are accessible to authorized users when needed. The use of a redundant server that automatically takes over during a failure is a classic example of a high-availability strategy. Confidentiality is about preventing unauthorized disclosure of information. Integrity is about ensuring data is not altered in an unauthorized manner. Non-repudiation provides proof of the origin and integrity of data, preventing a sender from denying they sent a message.
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