Availability

Updated 31 Jul 2026

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def
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  systems and networks must be up and running — information is accessible to authorized users
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how it's protected
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  redundancy — build services that will always be available
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  fault tolerance — the system continues to run even when a failure occurs
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  patching — closes security holes and improves stability
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related
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cards
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  Name 3 ways availability is protected
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    Redundancy, fault tolerance, patching

Linked references 5