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Computer Practice Set for Data Entry Operator 5

21. To stop unauthorized access to the computer system we should
(A). Have a trustworthy system administrator
(B). Have a good passwords policy
(C). Have a sound encryption policy
(D). All of the above


22. Which cannot assure data accuracy in an application?
(A). Limit and reasonableness test
(B). Echo checking
(C). Control total
(D). None of these


23. Maximum storage space is available on
(A). CDs
(B). ROM
(C). Hard disks
(D). Floppies


24. Jon Von Neumann developed:
(A). First electronic chip flip flop
(B). Stored-program concept
(C). The first electronic computer
(D). None of these


25. Which of the following is single user computer with many features and good processing power?
(A). Minicomputer
(B). Workstation
(C). Macintosh
(D). None of these