VT Python 1064 Rephactor

If a variable called business refers to the string 'Time Warner', what is the result of the expression business[6]?

'a'

If a variable called son refers to the string 'Justin', what is the result of the expression son[-3]?

't'

What operator is used to perform string concatenation in Python?

+

If the variable num contains a positive integer, what are the only two possible results of the expression num % 2?

0 and 1

If the current value of the variable num1 is 2 and the current value of the variable num2 is 3, what value will be stored in num2 after the following line of code is executed? num2 /= num1 * num2

0.5

What is the result of the expression math.floor(12.843)?

12

Which value of num will cause the print statement in the following code to be executed? if num < 15: if num + 7 >= 20: print('There you go!')

13

What is the result of the expression max(6, 17)?

17

If a variable called pioneer refers to the string 'Grace Murray Hopper', what is the result of the expression len(pioneer)?

19

Which of the following is NOT a valid Python identifier?

1stPlace

What is the result of the expression math.pow(3, 3)?

27

What is the result of the expression 43 % 5?

3

What is the result of the expression 7 // 2?

3

What output is produced by the following code? print(15 + 30)

45

If the current value of the variable num is 4, what value will be stored in num after the following line of code is executed? num += 2

6

If the current value of the variable size is 2, what value will be stored in size after the following line of code is executed? size *= 3

6

If the current value of the variable count is 2, what value will be stored in count after the following line of code is executed? count += count * 3

8

What value is assigned to the variable num by the following statement if the current value of num is 4? (num = num*2)

8

Which of the following is a relational operator?

<=

What is the Python Standard Library?

A collection of programing components that can be used in any python program

What issue must be addressed when printing a long character string?

A regular string literal cannot span across multiple lines

What is the Python shell?

A window in which Python statements and expressions are executed immediately

Which of the following does the input function NOT do when it is called?

Convert the user input into the integer

A Python program must be enclosed in curly braces { } to be executed.

False

A Python program must compiled into an executable form before it can be run.

False

A turtle draws a filled circle using the fill_circle command.

False

All mathematical functions in Python are part of the math module.

False

An if statement cannot have both an elif and an else clause.

False

If both operands to the remainder operator (%) are positive, a divisor of n will produce a result in the range 1 to n.

False

In Python, the assignment statement is also an expression.

False

In dynamically typed languages, variables are declared to store a specific type of data.

False

Python 3 is backwards compatible to Python 2.

False

Python variables that represent integers are NOT object reference variables.

False

Running a program that contains errors will cause the Thonny development environment to terminate.

False

The Python programming language was so named after a snake was discovered in the creator's office.

False

The arithmetic operators have a lower precedence than the relational operators.

False

The assignment operator has higher precedence than the arithmetic operators.

False

The effect of the setheading depends on the current heading of the turtle.

False

The expression x ^ y raises the value x to the power y.

False

The goto command moves the turtle without drawing a line.

False

The input function will produce an error if the value read is not numeric.

False

The less than operator (<) should not be used to compare floating point values.

False

The origin point (0, 0) of the turtle coordinate system is in the upper left corner of the graphic screen.

False

The stroke color of a filled turtle shape must be the same as the fill color.

False

The value assigned to a variable must be numeric.

False

Using components from the Python Standard Library is a rare occurrence.

False

You must use a print statement to display the result of an expression in the Python shell.

False

Who developed the Python programming language?

Guido Van Rossum 1989

Thonny is best described as which of the following?

Integrated Development Environment (IDE)

What output is produced by the following code? print('Jan', 'Feb', 'Mar', sep='-')

Jan-Feb-Mar

What output does the following code produce? print('Total: ' + 100 + 20)

No output. Would produce an error

Python embodies elements of which programming paradigm?

Procedural programming, Object-orientated programming, Functional programming (all of the above)

What is text that requests user input called?

Prompt

What output does the following code produce? print('Ready', end=' ') print('Set', end='') print('Go')

Ready SetGo

What is syntax coloring?

Showing certain elements of program code in different colors

What does the term case sensitive mean?

The difference between uppercase and lowercase matters.

Which of the following statements is true?

The print statement is a call to function

Which of the following statements is true?

The statement in the body of an 'if; must be indented

What will happen if the variable total has the value 5 when the following code is executed? if total > 8: print('collywobbles')

The word "collywobbles" is not printed and processing continues

3 The pen color and size determines the color and width of the lines drawn.

True

A character string can be used as the condition of an if statement.

True

Built-in functions of the Python Standard Library can be used without being imported.

True

Full documentation about the Python Standard Library can be found online.

True

If a filled shape drawn by a turtle is not fully enclosed, Python fills the shape as if the starting point is connected to the end point.

True

If either or both operands to the division operator (//) are floating-point values, then the result will be a floating-point value.

True

In Python, the relational operators can be used to put character strings in alphabetical order.

True

Python is a general-purpose programming language, appropriate for solving problems in many areas of computing.

True

Python variables are created using an assignment statement

True

Setting the turtle's speed to 0 turns off the animation of the turtle movement completely.

True

The Python shell has an integrated help system.

True

The Python shell is great for exploring Python language features.

True

The Python turtle graphics module is based on the programming language Logo developed in the 1960s.

True

The input function always returns the read data as a character string.

True

The input, int, and float functions are all built-in functions.

True

The math module contains a constant that represents the value pi to several digits.

True

The math.pi constant represents pi to 15 decimal places.

True

The output of a Python program run in Thonny appears in the shell window.

True

The position of a circle depends on the current heading of the turtle.

True

The relational operators all return boolean results.

True

The result of a relational operator can be assigned to a variable.

True

The turtle circle command can be used to draw a regular polygon.

True

The value assigned to a variable could be a floating point number.

True

The value of a variable can change throughout a program.

True

Thonny displays code using syntax highlighting.

True

Thonny has a package manager that lets you install and update external Python packages.

True

You can store a value in a variable in the Python shell.

True

You cannot change the contents of Python character string once it has been created.

True

Which of the following is NOT a principle embraced by the Python programming language?

Verbose is better than succinct

If a variable called jedi refers to the string 'Yoda', what is the result of the expression jedi * 3?

YodaYodaYoda

Which of the following expressions could be used to determine if a is not less than b?

a >= b

What output does the following code produce? (print('apple', 'banana'))

apple banana

Which line of code is equivalent to the following? depth += 50 * offset

depth = depth + (50*offset)

Which way would the turtle be facing after executing the following code? turtle.setheading(270) turtle.right(20) turtle.left(65)

down and right (southeast)

Of the options given, what values of the variables height, size, and width would cause the following code to set the variable weight to 100? if height < size: weight = 50 if width < 20: print('short') else: if width > 100: weight = 100 println('tall')

height = 15, size = 10, width = 110

Suppose the integer variable hours contains a value that represents a number of hours. Which of the following expressions will compute how many 24-hour periods are represented by that value, without worrying about any leftover hours.

hours//24 (Integer division throws the amount leftover away)

What output is printed by the following code if it is executed when appetizer is 3 and entree is 12? if appetizer > 1: if entree < 7: print('ketchup') else: print('mustard') else: if appetizer < 0: print('mayonnaise') else: print('relish')

mustard

What output is produced by the following code? print('oak', 'elm', 'pine', end='!', sep='#')

oak#elm#pine!

Which of the following identifiers follows the convention for naming Python variables?

total_value

Which way would the turtle be facing after executing the command turtle.setheading(135)?

up and left (northwest)

If the turtle is currently facing up (north), which way would it be facing after executing the command turtle.right(45)?

up and right (northeast)