Graded Questions

Question 1

What is the correct way to check if a key exists in a dictionary?

if key in my_dict

if my_dict.key()

if my_dict.contains(key)

if my_dict.has_key(key)

Question 2

What is the output of the following code snippet?

x = [1,2,3]
y = x
y[0] = 10
print(x[0])

Question 3

How do you check if a value exists in a dictionary in python?

if value in my_dict

if my_dict.value()

if my_dict.contains(value)

if my_dict.has_value(value)

Question 4

What is the correct way to open a file in python for reading?

file=open(file.txt,w)

file=open(file.txt,r)

file=open(file.txt,a)

file=open(file.txt,rb)

Question 5

What is the purpose of the try andexcept blocks in Python?

They are used for looping over elements in a list.

They are used for defining functions.

They are used for error handing and catching exception.

They are used for defining classes.

Question 6

What of the following is a correct way to define a function in python?

function add(a,b):

def add(a,b)

def add(a,b):

define add(a,b)

Question 7

What is the output of the following code snippet?

my_dict ={"a": 1. "b": 2, "c": 3}
print(len(my_dict))

Question 8

What is the output of the following code snippet?

a = [1, 2, 3]
b = a
b[0] = 5
print (a[0])

Question 9

What is the output of the following code snippet?

print (3 == 3.0)

True

False

Error

None of the above

Question 10

Which of the following is a correct way to create a copy of a list in python?

new_list=old_list.copy()

new_list=old_list

new_list=list(old_list)

new_list=copy(old_list)

Question 11

What does the pop() method do for lists in python?

It remoyes the last element from the list.

It removes the first element form the list.

It removes the element at the specified index from the list.

It removes all elements from the list.

Question 12

What is the output of the following code snippet?

x = True
y = False
print(x and y)

True

False

Error

None of the above

Question 13

How do you convert a list into a tuple?

tuple(my_list)

my_list.tuple()

my_list.to_tuple()

list(tuple)

Question 14

Which of the following is a correct way to define a class in python?

class MyClass

define class MyClass

Class MyClass

class MyClass

Question 15

What is the output of the following code snippet?

x = 15
y = 2
print(x % y)

7.5

Question 16

How do you define a set in python?

set={}

set=set()

set=[]

set=()

Question 17

What is the output of the following code snippet?

x = "hello, world!"
print(x.split(","))

[Hello. World!]

Hello, World!

Hello World!

[Hello, World!]

Question 18

What is the output of the following code snippet?

x = "hello"
y = "world"
print(x + y)

HelloWorld

Hello+World

Error

Question 19

How do you remove an element from a set in python

set.remove(element}

set.remove(index)

set.pop(element)

set.delete(element)

Question 20

Which statement is used to exit from a loop in python?

exit

continue

break

end

Question 21

What is the output of the following code snippet?

x = [1,2,3]
y = [4,5]
z = x + y
print(len(z))

Question 22

Which function is used to convert a string to lowercase in python?

to_lower()

lower()

str_lower()

case_lower()

Question 23

What is the purpose of the pass statement in python?

It is used to create a new function.

It is used to handle exceptions.

It is used to define an empty class.

It is used as a placeholder for code that will be added later.

Question 24

Which of the following data types is mutable in python?

int

str

tuple

list

Question 25

Which character is used for single-line comments in python?

Question 26

How do you access the last element of a list in python?

list[0]

list[-1]

list[last]

list.get(-1)

Question 27

What is the output of the following code snippet?

x = 5
y = 2
print(x ** y)

Question 28

What is the output of the following code snippet?

my_list = [1,2,3,4,5]
print(my_list[-3])

Question 29

What is the output of the following code snippet?

x =10
y =20
x, y = y, x
print (x)

Question 30

What is python?

A high-level programming language.

A machine learning framework.

A database management system.

A markup language.

Question 31

What is the output of the following code snippet?

my_tuple = (1, 2, 3, 4, 5)
print(my_tuple[1:3])

(1,2)

(2,3)

(2,3,4)

(1,2,3)

Question 32

What is the output of the following code snippet?

x = 5
y = 2
print(x // y)

2.5

2.0

2.2

Question 33

What is the output of the following code snippet?

my_list = [1, 2, 3, 4]
print (my_list[2])

Question 34

What is the output of the following code snippet?

my_string = "Hello, World!"
print(my_string[::2])

Hlo ol

HloWrd

Hello, World!

HlloWrd

Question 35

How do you convert a string to an integer in python?

int(my_string)

my_string.integer()

to_int(my_string)

integer(my_string)

Question 36

What is the output of the following code snippet?

x = 10
y = 3
print(x / y)

3.3333

3.o

3.3333333333333335

Question 37

What is the output of the following code snippet?

my_string = "Hello, world!"
print (my_string[-1])

Question 38

What does the range()function return?

A list of numbers from 1to the specified number.

A list of number from 0 to the specified number (exclusive).

A list of numbers from 0 to the specified number (inclusive).

A list of numbers from the specified end (exclusive).

Question 39

What is the result of the expression?

2+3*5

Question 40

Which of the following is not a valid python variable name?

_my_var

123var

myVar

my_var

Question 41

What is the correct way to define an empty list in python?

empty_list=[]

empty_list=()

empty_list={}

empty_list=

Question 42

What is the output of the following code snippet?

my_set ={1, 2, 3, 4}
my_set.add(5)
print(my_set)

{1,2,3,4}

[1,2,3,4,5]

{1,2,3,4}

[1,2.3,4]

Question 43

Which of the following is a correct way to define a tuple in python?

tuple=()

tuple=[]

tuple={}

tuple=()

Question 44

What is the output of the following code snippet?

x = "Hello, World!"
print(x.upper())

hello, world!

Hello, World!

HELLO, WORLD!

Hello, world!

Question 45

What does the len()function do in python?

It returns the length of a string.

It returns the number of elements in a list.

It returns the size of a file.

It returns the sum of all elements in a list.

Question 46

Which operator is used for exponentiation in python?

Question 47

What is the output of the following code snippet?

x = 5
y =10
print(x > y)

True

False

Error

None of the above

Question 48

What does the ord () function do in python?

It returns the Unicode code point of a given character.

It converts a number to its ordinal form (e.g., 1st, 2nd).

It returns the absolute value of the number.

It returns the asc|| value of a given character.

Question 49

What is the purpose of the random module in python?

It provides functions for performing mathematical operations.

It allows you to work with dates and times.

It allows you to generate random numbers and data.

It provides networking capabilities.

Question 50

Which of the following is used to take user input in python?

input()

get_input()

user_input()

read()

Name

Phone

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