Preceding a condition by the ____ operator reverses the truth of the original condition.

A. <>
B. NOT
C. NULL
D. OR


Answer: B

Computer Science & Information Technology

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The integer Unicode uses to represent the letter 'Z' is ____.

A. 90 B. 91 C. 122 D. 127

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One appropriate action when invalid input data has been detected is to assign a(n) ____value and proceed.

A. error B. random C. decrement D. default

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A Provisioned IOPS SSD volume must be at least _____ GB in size.

A. 1 B. 6 C. 20 D. 4

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Which of the following is true about algebraic expressions?

a) parentheses are needed in all algebraic expressions b) infix expressions do not require precedence rules c) postfix expressions do not require association rules d) fully parenthesized expressions are difficult to recognize and evaluate

Computer Science & Information Technology