What Is a Backup

question 23

Multiple Choice

What is a backup?

• A) An exact copy of a system's information
• B) The ability to get a system up and running in the event of a system crash or failure and includes restoring the information backup
• C) A computer system designed that in the event a component fails, a backup component or procedure can immediately take its place with no loss of service
• D) A backup operational mode in which the functions of a computer component (such as a processor, server, network, or database) is assumed by secondary system components when the primary component becomes unavailable through either failure or scheduled down time

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