Which practice will prevent data loss in case of a computer malfunction?

Are special combinations of keys that tell a computer to perform a command. keypads multi-keys combinations shortcuts

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John recently worked on a project about various programming languages. he learned that though procedural language programs are useful, they have disadvantages too. what is a disadvantage of programs written in procedural languages? a. programs do not represent data complexity. b. programs take more time to execute. c. programs are prone to security threats. d. programs do not interface with multiple platforms.