Programming Test 1

In Python the ________ symbol is used as the not-equal-to operator.

!=

Which mathematical operator is used to raise to the second power

**

Which of the following are steps in the program development cycle?

1. Design the program 2.Write the code and correct syntax errors 3. test the program 4. correct logic errors

What is the output of the following command, given that value1 = 2.0 and value2 = 12? print(value1 * value2)

24.0

After the execution of the following statement, the variable price will reference the value ________. price = int(68.549)

68

When applying the .3f formatting specifier to the number 76.15854, the result is ________.

76.159

In Python the ________ symbol is used as the equality operator.

==

________ are notes of explanation that document lines or sections of a program.

Comments

Multiple Boolean expressions can be combined by using a logical operator to create ________ expressions.

Compound

A(n) ________ structure is a logical design that controls the order in which a set of statements execute.

Control

In flowcharting, the ________ symbol is used to represent a Boolean expression.

Diamond

The decision structure that has two possible paths of execution is known as

Dual Alternative

A(n) ________ character is a special character that is preceded with a backslash (\), appearing inside a string literal

Escape

According to the behavior of integer division, when an integer is divided by an integer, the result will be a float.

False

In python, math expressions are always evaluated from left to right, no matter what the operators are

False

Python allows you to compare strings, but it is not case sensitive.

False

Python formats all floating-point numbers to two decimal places when outputting with the print statement

False

Short -circuit evaluation is only performed with the not operator.

False

Since a named constant is just a variable, it can change anytime during a programs execution

False

The not operator is a unary operator which must be used in a compound expression.

False

What is the result of the following Boolean expression, given that x = 5, y = 3, and z = 8? x < y and z > x

False

What is the result of the following Boolean expression, given that x = 5, y = 3, and z= 8? not (x < y or z > x) and y < z

False

After the execution of the following statement, the variable sold will reference the numeric literal value as (n) ________ data type. sold = 256.752

Float

A ________ is a diagram that graphically depicts the steps that take place in a program

Flowchart

The ________ specifier is a special set of characters that specify how a value should be formatted. (Hint: formatting)

Formatting

What is the output of the following print statement? (Hint: p. 67) print 'I\'m ready to begin'

I'm ready to begin

A(n) ________ is a single task that the program must perform in order to satisfy the customer

Software requirement

What is the output of the following print statement? (Hint: p. 67) print('The path is D:\\sample\\test.')

The path is D:\\sample\\test.

A flowchart is a tool used by programmers to design programs

True

An action in a single alternative decision structure is performed only when the condition is true.

True

Comments in Python begin with the # character.

True

Computer programs typically perform three steps: input is recieved, some process is performed on the input, and output is produced

True

Decision structures are also known as selection structures.

True

Expressions that are tested by the if statement are called Boolean expressions.

True

In python, print statements written on seperate lines do not necessarily output on separate lines.

True

Nested decision statements are one way to test more than one condition.

True

Python allows programmers to break a statement into multiple lines

True

Python uses the same symbols for the assignment operator as for the equality operator.

True

The Python language is not sensitive to block structuring of code.

True

The if statement causes one or more statements to execute only when a Boolean expression is true.

True

What is the result of the following Boolean expression, given that x = 5, y = 3, and z = 8? x < y or z > x

True

When using the camelCase naming convention, the first word of the variable name is written in lowercase and the first characters of all subsequent words are written in uppercase.

True

the /t escape character causes the output to skip over the horizontal tab

True

A Boolean variable can reference one of two values which are

True or False

What symbol is used to mark the beginning and end of a string

a quote mark (")

When using the ________ logical operator, both subexpressions must be true for the compound expression to be true.

and

When using the ________ logical operator, one or both of the subexpressions must be true for the compound expression to be true.

and

A(n) ________ expression is made up of two or more Boolean expressions.

compound

When the + operator is used with two strings, it performs string ________.

concatenation

In a decision structure, the action is ________ executed because it is performed only when a specific condition is true.

conditionally

Python uses ________ to categorize values in memory.

data types

In a pring statement, you can set the ______ argument to a space or empty string to stop the output from advancing to a new line

end

Boolean variables are commonly used as ________ to indicate whether a specific condition exists.

flags

The line continuation character is a

forward slash

The ________ statement is used to create a decision structure.

if

Which of the following is the correct if clause to determine whether choice is anything other than 10?

if choice !=10:

Which of the following is the correct if clause to determine whether y is in the range 10 through 50, inclusive?

if y >= 10 or y <= 50:

Python provides a special version of a decision structure known as the ________ statement, which makes the logic of the nested decision structure simpler to write.

if-elif-else

A(n) ________ statement will execute one block of statements if its condition is true or another block if its condition is false.

if-else

The _______ function reads a piece of data that has been entered at the keyboard and returns that piece of data, as a string, back to the program

input()

The ________ built-in function is used to read a number that has been typed on the keyboard.

input()

The % symbol is the remainder operator, also known as the ________ operator.

modulus, mod

A __________ is a name that represents a value that cannot be changed during a programs execution

named constant

The logical ________ operator reverses the truth of a Boolean expression.

not

In the expression 12.45 + 3.6, the values to the right and left of the + symbol are the ________

operands

Which of the following will display 20%?

print(format(0.2, '.0%'))

What is the informal language, used by programmers use to create models of programs that has no syntax rules and is not meant to be compiled or executed

pseudocode

A(n) ________ operator determines whether a specific relationship exists between two values.

relational

A(n) ________ decision structure provides only one alternative path of execution.

single alternative

A(n) ________ is a name that represents a value stored in the computer's memory.

variable

What does the following expression mean? x <= y

x is less than or equal to y