Answer the following statements true (T) or false (F)
1. Value checks are usually performed for any data.
2. A value check is used when one element has a relationship with another one.
3. A mathematical process of assuring data accuracy involves multiplying each of the digits in the original code by some predetermined weights, summing these results, and then dividing this sum by a modulus number.
4. Use the stored data system to prevent the mistake that the intended number 53411 is typed in as number 54311 instead.
5. A method for validating credit cards uses a check digit formula called the Kendall formula.
1. FALSE
2. FALSE
3. TRUE
4. FALSE
5. FALSE
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Refering to the accompanying figure, which of the following callouts points to the group of tools used to accept or reject changes?
A. A B. B C. C D. D
Which one of the following statements about access control matrices is true?
a) In an installation with a large number of users and number of files, the matrix would be quite small. b) Because allowing access to a file is the exception rather than the rule, the matrix will be rather dense. c) The entry a¬ij is 1 if user i is allowed access to file j. d) The entry aij is 1 if user i may not be access file j.
________ let Outlook know where to place specific emails based on their subject lines, who sent them, or the importance of the message
A) Inbox Rules B) Themes C) More actions D) Email signatures
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Indicate whether the statement is true or false.