CSCE 110 MIDTERM ACTUAL QUESTIONS & ANSWERS

CSCE 110 MIDTERM ACTUAL
QUESTIONS & ANSWERS

string, tuple, range, integer, float, Boolean - ANSWER-List the data types in python that are
IMMUTABLE

list, dictionary, set - ANSWER-List the data types in python that are MUTABLE

for, while - ANSWER-Use a for/while loop when you know exactly how many times a loop needs
to run, and a for/while loop when you can't predict how often it repeats

docstring - ANSWER-optional comments are called this

'''Hello'''

parentheses, index (slicing), exponent, multiplication/division/modulus, add and subtract,
comparisons, Boolean (not, and, then or) - ANSWER-Order of operations in python

string, list, tuple, set, dictionary (NOT int, float, bool) - ANSWER-data types in python that are
iterables

0, 1 - ANSWER-For splicing x[a:b:c]:

if a is missing, the value is ___

if c is missing, the value is __

if b is missing, the value is the length of the string.

brackets, parentheses, squiggly braces, - ANSWER-What are each of the following data
structures inclosed in:

lists

tuples

dictionaries and sets

sets are unordered and unindexed, dictionaries are ordered and mutable - ANSWER-What is the
difference between sets and dictionaries?

5, 6, 7, 8, 9 - ANSWER-range(5,10) returns what?

yes - ANSWER-Can lists have heterogenous elements?

,ex: ['dog', 78]

functions - ANSWER-range() and main() are considered these in python

element - ANSWER-in the list ['hello', 78], hello and 78 are called this.

{1, 2, 3, 'c', 'b', 'a'} - ANSWER-what is the output of this union:

a = {1,2,3}

b = {'a', 'b', 'c'}

a|b

{2, 3} - ANSWER-what is the output of this intersection:

a = {1,2,3}

b = {2,3,4}

a&b

print('Hello World') - ANSWER-What is a correct syntax to output "Hello World" in Python?

my-var - ANSWER-Which one is NOT a legal variable name?



my-var

Myvar

my_var

_myvar

print(type(x)) - ANSWER-What is the correct syntax to output the type of a variable or object in
Python?

def myFunction(): - ANSWER-What is the correct way to create a function in Python?

T - ANSWER-T/F

In Python, 'Hello', is the same as "Hello"

x = "Hello"[0] - ANSWER-What is a correct syntax to return the first character in a string?



x = "Hello"[0]

,x = sub("Hello", 0, 1)

x = "Hello".sub(0, 1)

strip() - ANSWER-Which method can be used to remove any whitespace from both the
beginning and the end of a string?

upper() - ANSWER-Which method can be used to return a string in upper case letters?

replace() - ANSWER-Which method can be used to replace parts of a string?

== - ANSWER-Which operator can be used to compare two values?

dictionary - ANSWER-What is this called?

{"name": "apple", "color": "green"}

list - ANSWER-Which collection is ordered, changeable, and allows duplicate members?



set

list

dictionary

tuple

set - ANSWER-Which collection does not allow duplicate members?



set

list

tuple

break - ANSWER-Which statement is used to stop a loop?

['b','e'] - ANSWER-What is the output of the following program?

a = list('abcdefg')

print(a[1::3])

T - ANSWER-T/F

The first character of a variable in Python can be a letter or an underscore.

, T - ANSWER-T/F

When A is a set, A >= A

F - ANSWER-T/F

When a is a set, a < a

F - ANSWER-T/F

In Python, a variable must be declared before it is assigned a value.

T - ANSWER-T/F

In Python, a variable may be assigned a value of one type, and then later assigned a value of a
different type.

route66, Age, home_address - ANSWER-Which of the following are valid Python variable names:



route66

4square

ver1.3

Age

home_address

return

Concatenates string1 and string2 - ANSWER-What does the expression string1 + string2 do?



Repeats string1 string2 times (string2 must be in numeric format).

Concatenates string1 and string2.

It's a syntax error.

Adds string1 to string2 (both must be in numeric format).

T - ANSWER-T/F

Python syntax is case-sensitive.

x y z = 1 2 3 - ANSWER-Which of the following is an invalid statement?