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Exam 5: Boolean Logic in Programming

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Question 1

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Which of the following Boolean expressions is correct?

A) false and false = true
B) false and true = true
C) true and true = true
D) true and false = true

Correct Answer

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C

Question 2

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The English language alphabet is not usually considered to be a collating sequence.

Correct Answer

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False

Question 3

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When two values are combined in the OR operation, the result is true only if both values are true.

Modern computers most often use one of two codes to represent characters in a computer - either the American Standard Code for Information Interchange (ASCII) or a newer code called Unicode.

When searching and sorting data stored on a computer, comparisons can be made using character strings.

Alice has a world-level function that will return a random number in a specified range.

In the book An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities, George Boole outlined a system of logic now known as ____.

The logical comparison operator used for "not equals" is >=.

Unicode is actually a subset of the ASCII code.

____ are used to compare two values in Boolean logic.

Professional programmers often use Boolean algebra and other formal tools when dealing with the layered complexities of Boolean logic.

A ____ returns the distance between two objects.

Character strings are compared according to the place in a collating sequence for each character of the string.

Which of the following Boolean expressions is correct?

Most students majoring in computer science will need to study Boolean algebra in courses such as "Discrete Mathematics" or "Computer Math and Logic."

The term ____ means to put a set of items in order.

Recursion is a form of mathematics in which the only values used are true and false.

Comparisons using character strings are frequently used in Alice.

All of the following are Boolean operators EXCEPT ____.

The ____ code includes letters, numeric digits, and some "hidden" characters, such as the Enter key and the Esc key.