When planning a comprehensive security system, the first step is designing , which use a combination of hardware and software for improving reliability, a way of ensuring availability in case of a system failure.

Fault tolerant system

Explanation:

Fault tolerance is the property that keeps a system operating properly in the event of a failure of one of the components within the system

A fault tolerant system enables the system to continue its operation possibly at a reduced level, rather than having the whole system breakdown.

A good security expert understands the need for fault tolerance in a comprehensive security system, as the absence of this can lead to serious security breaches once the whole system is down.

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