Deck 5: Boolean Logic in Programming

Question 1

In 1854, George Boole, the first Professor of Mathematics at Queen's College in Cork, Ireland, published a book titled An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities.

Answer 1

True

Question 2

Branching and looping routines contain conditions that are either true or false.

Answer 2

True

Question 3

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

Answer 3

False

Question 4

There are three basic operations in Boolean logic - AND, OR, and NOT.

Question 5

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

Question 6

In the AND operation, if either value is true, then the result is true.

Question 7

The following Boolean expression is correct: not true = true.

Question 8

The following Boolean expression is correct: not false = false.

Question 9

In 1858, George Boole's original book was republished as An Investigation of the Laws of Thought.

Question 10

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

Question 11

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

Question 12

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.

Question 13

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

Question 14

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

Question 15

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

Question 16

Unicode can be used as collating sequences for character string values.

Question 17

Unicode includes characters for alphabets such as the Greek, Hebrew, Arabic, and Cyrillic alphabets.

Question 18

Unicode is actually a subset of the ASCII code.

Question 19

Comparisons using character strings are frequently used in Alice.

Question 20

The true and false values in computer programming can come from Boolean functions.

Question 21

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

Question 22

Alice has math comparison functions that can be found on world's functions tab, along with the AND, OR, and NOT functions.

Question 23

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

Question 24

In Alice, clicking the ADD OBJECTS button allows you to enter Scene Editor mode.

Question 25

When testing an Alice world, the speed slider control, in the playing world window, can be used to speed things up a bit.

Question 26

The AND and OR operations are ____ operations, meaning that they need two operands.

A) dual
B) binary
C) complimentary
D) unary

Question 27

The conditions that exist in branching and looping routines are a form of ____.

A) first-order logic
B) informal logic
C) Boolean logic
D) modal logic

Question 28

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 ____.

A) first-order logic
B) modal logic
C) Boolean logic
D) informal logic

Question 29

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 and a corresponding algebraic language dealing with true and false values. Today, that language is known as ____.

A) Boolean algebra
B) Sigma algebra
C) F-algebra
D) relational algebra

Question 30

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

Question 31

Which of the following Boolean expressions is correct?

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

Question 32

____ is the basis for all modern digital electronic technology.

A) ASCII
B) Encapsulation
C) Boolean logic
D) Recursion

Question 33

Which of the pseudocode statements below best expresses the following warning message? The passenger-side air bag may cause injury to children who are under the age of 12 or who weigh less than 48 pounds. They should not sit in the front passenger seat of this car.

A) IF (age > 12 OR weight < 48)THEN do not sit in the front passenger seat
B) IF (age < 12 OR weight < 48)THEN sit in the front passenger seat
C) IF (age <= 12 OR weight <= 48)THEN sit in the front passenger seat
D) IF (age < 12 OR weight < 48)THEN do not sit in the front passenger seat

Question 34

The ____ operation is a unary operation.

A) AND
B) ADD
C) NOT
D) OR

Question 35

The symbol "____" in stands for "is less than."

A) <
B) <=
C) >
D) >=

Question 36

____ are used to compare two values in Boolean logic.

A) Inverse functions
B) Identity functions
C) Logical comparison operators
D) Proximity functions

Question 37

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

A) counterbalance
B) collate
C) offset
D) adjust

Question 38

A ____ is a list that shows the correct order to be used when collating a set of items.

A) finite sequence
B) series
C) Fibonacci sequence
D) collating sequence

Question 39

In Boolean algebra, the symbol ____ stands for less than.

A) >
B) >=
C) <
D) <=

Question 40

In Boolean algebra, the symbol ____ stands for greater than or equal to.

A) >
B) >=
C) <
D) <=

Question 41

In Boolean algebra, the symbol ____ stands for not equal.

A) ==
B) !>
C) >=
D) !=

Question 42

All of the following are Boolean operators EXCEPT ____.

A) =
B) <>
C) >=
D) /

Question 43

The ____ code is based on the English language.

A) UTF-10
B) UTF-8
C) ASCII
D) Unicode

Question 44

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

A) UTF-10
B) UTF-8
C) ASCII
D) Unicode

Question 45

A ____ is a function that returns a true or false value instead of a numeric value.

A) Boolean function
B) K-function
C) Beta function
D) Gamma function

Question 46

A ____ returns a value based on the distance from one object to another.

A) K-function
B) proximity function
C) Beta function
D) Boolean function

Question 47

A ____ returns the distance between two objects.

A) K-function
B) numeric proximity function
C) beta function
D) Boolean function

Question 48

A ____ returns a value of true or false.

A) proximity function
B) numeric proximity function
C) beta function
D) K-function

Question 49

In Alice, ____ are used to mark the beginning and end of the block of code within the loop.

A) "(" and ")"
B) "[" and "]"
C) "{" and "}"
D) "<" and ">"

Question 50

To ____ a value in a program means that the programmer puts a specific value in a program instead of a variable or parameter.

A) softcode
B) encapsulate
C) compile
D) hardcode