Python Exam Chapters 1-5 Questions
& Answers15
What should the following two expressions evaluate to ?
'spam' + 'spamspam'
'spam' * 3 - ANSWERS-Both expressions evaluate to the string 'spamspamspam'.
Why is egg a valid variable name while 100 is invalid ? - ANSWERS-Variable names cannot begin
with a number.
What three functions can be used to get the integer, floating-point number, or string version of
a value ? - ANSWERS-The int(), float(), and str() functions will evaluate to the integer, floating-
point number, and string versions of the value passed to them.
Why does this expression cause an error ? How can you fix it ?
'I have eaten' + 99 + 'burritos' . - ANSWERS-The expression causes an error because 99 is an
integer, and only strings can be concatenated to other strings with the + operator. The correct
way is i have eaten ' + str(99) + ' burritos '.
What are the two values of the Boolean data type? How do you write them? - ANSWERS-True
and False, using capital T and F, with the rest of the word in lowercase.
What are the three Boolean operators? - ANSWERS-and, or, and not.
Write out the truth tables of each Boolean operator (that is, every possible combination of
Boolean values for the operator and what they evaluate to). - ANSWERS-True and True is True.
True and False is False.
, False and True is False.
False and False is False.
True or True is True.
True or False is True.
False or True is True.
False or False is False.
not True is False.
not False is True.
What do the following expressions evaluate to ?
(5 > 4) and (3 == 5)
not (5 >4)
(5 > 4) or (3 == 5)
not ((5 > 4) or (3 == 5))
(True and True) and (True == False)
(not False) or (not True) - ANSWERS-False
False
True
False
False
True
What are the six comparison operators ? - ANSWERS-==, !=, <,>,<=,and >=
What is the difference between the equal to operator and the assignment operator ? -
ANSWERS-== is the equal operator to operator that compares two values and evaluates to a
Boolean, while = is the assignment operator that stores a value in a variable.
& Answers15
What should the following two expressions evaluate to ?
'spam' + 'spamspam'
'spam' * 3 - ANSWERS-Both expressions evaluate to the string 'spamspamspam'.
Why is egg a valid variable name while 100 is invalid ? - ANSWERS-Variable names cannot begin
with a number.
What three functions can be used to get the integer, floating-point number, or string version of
a value ? - ANSWERS-The int(), float(), and str() functions will evaluate to the integer, floating-
point number, and string versions of the value passed to them.
Why does this expression cause an error ? How can you fix it ?
'I have eaten' + 99 + 'burritos' . - ANSWERS-The expression causes an error because 99 is an
integer, and only strings can be concatenated to other strings with the + operator. The correct
way is i have eaten ' + str(99) + ' burritos '.
What are the two values of the Boolean data type? How do you write them? - ANSWERS-True
and False, using capital T and F, with the rest of the word in lowercase.
What are the three Boolean operators? - ANSWERS-and, or, and not.
Write out the truth tables of each Boolean operator (that is, every possible combination of
Boolean values for the operator and what they evaluate to). - ANSWERS-True and True is True.
True and False is False.
, False and True is False.
False and False is False.
True or True is True.
True or False is True.
False or True is True.
False or False is False.
not True is False.
not False is True.
What do the following expressions evaluate to ?
(5 > 4) and (3 == 5)
not (5 >4)
(5 > 4) or (3 == 5)
not ((5 > 4) or (3 == 5))
(True and True) and (True == False)
(not False) or (not True) - ANSWERS-False
False
True
False
False
True
What are the six comparison operators ? - ANSWERS-==, !=, <,>,<=,and >=
What is the difference between the equal to operator and the assignment operator ? -
ANSWERS-== is the equal operator to operator that compares two values and evaluates to a
Boolean, while = is the assignment operator that stores a value in a variable.
