CBSE Class 11 Computer Science String and Function MCQs

Question. What is the output of the following code ?
example = “snow world”
example[3] = ‘s’
print (example)
(a) snow
(b) snow world
(c) Error 
(d) snos world

Answer : C

Question. What will be the output of the following programming code?
x=”AmaZing”
print(x[3:],”and”,x[:2])
(a) Amazing and ZI
(b) aZing and Zin
(c) Zing and Am 
(d) Azing and zin

Answer : C

Question. Given a string example=”hello” what is the output of example.count(‘l’)
(a) 2 
(b) 1
(c) None
(d) 0

Answer : A

Question. Suppose s is “\t\tWorld\n”, what is s.strip() ?
(a) \t\tWorld\n
(b) \t\tWorld\n
(c) \t\tWORLD\n
(d) World 

Answer : D

Question. What is the output of the following?
print(“xyyzxyzxzxyy”.endswith(“xyy”, 0, 2))
(a) 0
(b) 1
(c) True
(d) False 

Answer : D

Question. What is the output of the following?
print(‘a B’.isalpha())
(a) True
(b) False 
(c) None
(d) Error

Answer : B

Question. What is the output of the following?
print(‘abcdef12’.replace(‘cd’, ’12’))
(a) ab12ef12 
(b) abcdef12
(c) ab12efcd
(d) none of the mentioned

Answer : A

Question. What is the output of the following?
print(‘Ab!2’.swapcase())
(a) AB!@
(b) ab12
(c) aB!2 
(d) aB1@

Answer : C

Question. The__________ function returns the exact copy of the string with the first letter in uppercase
(a) find()
(b) copy()
(c) upper()
(d) capitalize() 

Answer : D

Question. What is the output of the following code
example = “helle”
example.find(“e”)
(a) Error
(b) -1
(c) 1 
(d) 0

Answer : C

Question. What is the output of the following?
print(“xyyzxyzxzxyy”.count(‘xyy’, 2, 11))
(a) 2
(b) 0 
(c) 1
(d) error

Answer : B

Question. What is the output of the following?
print(“xyyzxyzxzxyy”.endswith(“xyy”))
(a) 1 
(b) True
(c) 3
(d) 2

Answer : A

Question. What is the output of the following?
print(‘ab’.isalpha())
(a) True 
(b) False
(c) None
(d) Error

Answer : A

Question. What is the output of the following?
print(‘abcdefcdghcd’.split(‘cd’))
(a) [‘ab’, ‘ef’, ‘gh’].
(b) [‘ab’, ‘ef’, ‘gh’, ”] 
(c) (‘ab’, ‘ef’, ‘gh’)
(d) (‘ab’, ‘ef’, ‘gh’, ”)

Answer : B

Question. Raju was solving a puzzle in which he wants to count the number of spaces.
Help him to complete
the following code
str1=input(“Enter the string”)
_________________________ // Statement 1
(a) print(str1.count(‘ ‘) + 1) 
(b) print(str1.count(‘ ‘) )
(c) print(str1.cnt(‘’))
(d) print(str1.cnt(‘’)+1

Answer : A

Question. Find the output of the following
word=”green vegetables”
print(word.find(‘veg’,2)
(a) 8
(b) 6 
(c) 10
(d) 12

Answer : B

Question. What is the output of the following code ?
example=”helloworld”
example[::-1].startswith(“d”)
(a) dlrowolleh
(b) True 
(c) -1
(d) None

Answer : B

Question. What is “Hello”.replace(“l”, “e”)
(a) Heeeo 
(b) Heelo
(c) Heleo
(d) None

Answer : A

Question. What is the output of the following?
print(‘ab12’.isalnum())
(a) True 
(b) False
(c) None
(d) Error

Answer : A

Question. What is the output of the following?
print(‘ ‘.isdigit())
(a) True
(b) False 
(c) None
(d) Error

Answer : B

Question. What is the output of the following?
print(‘abcdefcdghcd’.split(‘cd’, 0))
(a) [‘abcdefcdghcd’] 
(b) ‘abcdefcdghcd’
(c) error
(d) none of the mentioned

Answer : A

Question. What is the output of the following?
print(‘ab cd ef’.title())
(a) Ab cd ef
(b) Ab cd eF
(c) Ab Cd Ef 
(d) None of the mentioned

Answer : C

Question. How many times is the word “HELLO” printed in the following statement?
s=’python rocks’
for ch in s[3:8]:
print(‘Hello’ )
(a) 6
(b) 5 
(c) infinite
(d) 8

Answer : B

Question. What is the output of the following?
print(‘ab,12’.isalnum())
(a) True
(b) False 
(c) None
(d) Error

Answer : B

Question. What is the output of the following?
print(”’ \tfoo”’.lstrip())
(a) \tfoo
(b) foo 
(c) foo
(d) none of the mentioned

Answer : B

Question. What is the output of the following code
example = “helle”
example.rfind(“e”)
(a) -1
(b) 4 
(c) 3
(d) 1

Answer : B

Question. What will be the output of the following code
Msg=”CompuTer”
Msg1=”
for i in range(0, len(Msg)):
if Msg[i].isupper():
Msg1=Msg1+Msg[i].lower()
elif i%2==0:
Msg1=Msg1+’*’
else:
Msg1=Msg1+Msg[i].upper()
print(Msg1)
(a) cO*P*t*R 
(b) Co*p*t*R
(c) co*p*t*r
(d) cOP*tR

Answer : A

Question. What is the output of the following?
print(“abcdef”.find(“cd”) == “cd” in “abcdef”)
(a) True
(b) False 
(c) Error
(d) None of the mentioned

Answer : B

Question. What is the output of the following?
print(‘a@ 1,’.islower())
(a) True 
(b) False
(c) None
(d) Error

Answer : A

Question. myTuple = (“Joe”, “Peter”, “Vicky”)
x = “#”.join(myTuple)
print(x) will produce output
(a) Joe#Peter#Vicky 
(b) #JoePeterVicky
(c) JoePeterVicky
(d) JohnPete#Vicky#

Answer : A

Consider the string str=”Green Revolution” choose the correct statements in the python to implement the following in question a to c.

Question. Display last four characters
(a) str[-4:]
(b) str[:-4:]
(c) str[::]
(d) str[::-4] 

Answer : A

Question. To check whether the string contains ‘vol’ or not
(a) ‘vol’ in str 
(b) ‘vol’==str
(c) vol=str
(d) All of the above 

Answer : A

Question. To display the starting index for the substring ‘vo’
(a) str.disp(‘vo’)
(b) str.startind(‘vo’)
(c) str.find(‘vo’) 
(d) None of the above

Answer : C

Case Based Questions on String data type in Python

Q.36 Statement (1) As we know that strings are immutable. We cannot delete or remove the characters from the string.
Statement (2) But we can delete the entire string using the del keyword
(a) Statement 1 and Statement 2 both are true 
(b) Both statement 1 and 2 are false
(c) statement 1 is false and Statement 2 is true
(d) statement 1 is true and Statement 2 is false

Answer : A

Question. Consider the following case and write the code for the same.
Given a string. Cut it into two “equal” parts (If the length of the string is odd, place the center character in the first string, so that the first string contains one more characther than the second). Now print a new string on a single row with the first and second half interchanged (second half first and the first half second)
s = input()
______________________ //Fill in the statement
(a) print(s[(len(s) + 1) // 2:] + s[:(len(s) + 1) // 2 
(b) print(s[(len(s) + 1) // 2:]
(c) s[:(len(s) + 1) // 2
(d) None of the above

Answer : A

Question. (A) Assertion str1=”Hello” and str1=”World” then print(str1*3) will give error
(R) Reason : * replicates the string hence correct output will be
HelloHelloHello
(a) A is true but R is false
(b) A is true but R is not correct explanation of A
(c) A and B both are false
(d) A is false and R is correct 

Answer : D

Question. (A) Assertion :
a = “Hello”
b = “llo”
c = a – b
print(c)
This will lead to output He
(R) Reason : Python string does not support – operator
(a) A is true but R is false
(b) A is true but R is not correct explanation of A
(c) A and B both are false
(d) A is false and R true 

Answer : D

Question. (A) Assertion str1=”Hello” and str1=”World” then print(‘wo’ not in str) will print false
(R) Reason : not in returns true if a particular substring is not present in the specified string.
(a) A is true but R is false
(b) A is true and R is correct explanation of A 
(c) A and B both are false
(d) A is true but R is not correct explanation of A

Answer : B

Question. (A) Assertion : b = “Hello, World!” print(b[:5]) will give output “Hello”
(R) Reason : This will give get the characters from start position(5 not included)
(a) A is true but R is false
(b) A is true and R is correct explanation of A 
(c) A and B both are false
(d) A is true but R is not correct explanation of A

Answer : B

Question. (A) Assertion : You will get an error if you use double quotes inside a string that is surrounded by double quotes: txt = “We are the so-called “Vikings” from the north.”
(R) Reason : To fix this problem, use the escape character \”:
(a) A is true but R is false
(b) A is true but R is not correct explanation of A
(c) A and B both are false
(d) A is True and R is correct explanation of A 

Answer : D