COMPUTER SCIENCE - UNIT 2 - IITI - Good Education, Good Mentoring

Examination Name: COMPUTER SCIENCE - UNIT 2
Date: April 5, 2026
Time allowed: 30 minutes

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1.

Note the two Assertion and Reason statements below-

Assertion-(A): A slice of a list is an extracted part of a list
Reason-(R) A slice of a list is itself a list.
The correct option below is -Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

2.

Note the following two assertion and reasion statements-

Assertion:- (A) The for loop is a counting loop that operates on a sequence of values
Reason :- (R) range() function creates a range of list type.
The correct option below is-Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

A is true, but (R) is false (or partially true)

A is false (or partially true), but (R) is true

3.

Observe the following sentences -

i. A list of characters is similar to a string type
ii. For any index n, s[n] + s[n:] will return the original string
iii. A dictionary can contain keys of any valid Python type
The correct pair of which is false is given below?Deselect Answer

i, iii

i, ii

ii, iii

i, ii, iii

4.

Note the following two Assertion and Reason statements

Assertion -(A): Creates a list of any comma-separated group of values.
Reason-(R): A list consists of a group of values or expressions separated by commas enclosed in [].
The correct option below isDeselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

5.

Consider the loop given below -

for i in range(7, 4, -2):
break
What will be the final value of 'i' after this loop?Deselect Answer

4

5

7

-2

6.

Note the two Assertion and Reason statements below-

Assertion-(A): Only while loops can use break statements.
Reason-(R): Loop while is a conditional loop in Python and terminates when its condition returns false.
The correct option below is-Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or Partially true)

(A) is false (or partially true), but (R) is true

7.

Which of the following statements will create a repeating structure?

Deselect Answer

if

while

for

Both B & C

8.

Note the two Assertion and Reason statements below-

Assertion (A): In Python, unlike other types, the elements of a List can be changed from place to place.
Reason-(R): Lists are mutable sequences
The correct option below is –Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

9.

Observe the following sentences-

i. A for loop can always be written as an equivalent for a while loop.
ii. The Range() function can only be used for for loops.
iii. The if-elif-else statement is equivalent to a nested if statement.
The correct pair of which is false?Deselect Answer

i, iii

i, ii

ii.iii

i,ii,iii

10.

Which is the Jump statement below?

Deselect Answer

if

break

continue

Both b and c

11.

Which below is an entry – controlled loop?

Deselect Answer

if

while

for

Both B & C

12.

Which of the following functions will return the last three characters of a string s?

Deselect Answer

s [3 ; 1

s [:3]

s[-3 :]

s[: -3]

13.

When the following code runs, how many times is the line " x = x + 2” executed?

x = 1
while (x<20):
x= x * 2Deselect Answer

2

5

19

4

14.

If the user inputs 2, what will the following code print?

x = float(input())
if(x = = 1):
print("Yes")
elif (x>=2):
print("Maybe")
else
print ("No")Deselect Answer

Yes

No

Maybe

None of These

15.

Observe the following sentences?

i. A continue statement can replace a break statement
ii. An equivalent while loop can always be written for a for loop
The correct pair of which is true?Deselect Answer

i

i,ii

ii

None of these

16.

What will be the output when this code is executed?

x = 1
while (x < = 5) :
x +=1
print(x)Deselect Answer

0

1

4

6

17.

Select the correct output of the following string operations.

str = "my name is SWC"
print (str.capitalize())Deselect Answer

'My name is swc'

TypeError: unsupported operand type(s) for: 'str' and 'int'

My name is SWC

‘My Name Is Anu Swe’

18.

Which of the following is not a valid loop in Python?

Deselect Answer

for

if-else

do-while

Both B & C

19.

Which statement below will terminate the entire loop and proceed to the statement after the loop?

Deselect Answer

pass

break

continue

goto

20.

Note the following two Assertion and Reason statements-

Assertion-(A): The break statement can be used with all selection and iteration statements
Reason-(R): Using break with if statement will not cause an error.
The correct option below is-Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

21.

What is the output of the following string operation?

Str1 = “My roll no. is 12”
Print(str1.isalnum())Deselect Answer

True

False

Error

No output will be shown

22.

Note the two Assertion and Reason statements below

Assertion-(A): The break statement can be used with all selection and iteration statements.
Reason-(R): Using the break with the 'if’ statement has no benefit unless the if statement is part of a looping construct.
The correct option below is-Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

23.

Which of the following functions will return a list containing all words in a string?

Deselect Answer

find ( )

index ( )

partition ( )

split ( )

24.

Observe the following sentences-

i. The partition() and split() functions work similarly.
ii. find() and index() are similar functions.
The correct pair of the true statements is-Deselect Answer

i

i, ii

ii

25.

What does the following Python program display?

x= 3
if x = ():
print ("Am I here?", end)
else x = 3:
` print("Or here?", end)
else:
Pass
print ("Or over here?")Deselect Answer

Am I here?

Or here?

Am I here? Or here?

Or here? Or over here?

26.

Note the two Assertion and Reason statements below -

Assertion-(A): Lists and strings have similar indexing.
Reason-(R): Lists and strings have two-way indexing, forward indexing, and backward indexing.
The correct option below is-Deselect Answer

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but ® is true

27.

Which of the following statements will only terminate the current pass of the loop and proceed with the next iteration of the loop?

Deselect Answer

Pass

break

continue

goto

28.

Which below will add the numbers 1 to 4?

(A) for i in range (1,4):
sum = 0
sum = sum + i
(B) Sum = 0
For i in range (1,4);
Sum = sum + i
(C) For i in range (1,5):
sum = 0
sum = sum + i
(D) Sum = 0
For i in rangle (1,5);
Sum = sum + iDeselect Answer

(A)

(B)

(C)

(D)

29.

Which of the following will print five rows with five “*” in each row?

(A) for i in range(0,5):
print("*"*i)
(B) for i in range(0,5):
print"*”*5)
(C) for i in range(1,5):
print) (“*” * i)
(D) for i in range (1,5):
print (“*” * 5)Deselect Answer

(A)

(B)

(C)

(D)

30.

Select the correct output of the following string operations.

str1 = 'Study'
print (str1[:3]+'with' + str1[3:])Deselect Answer

studywithwith

Stuwithudy

withstudy

studyith

31.

Guess the output of the following string operations-

Strl = 'Wah'
print (str1 * 2)Deselect Answer

WahWah

TypeError : unsupported operand type(s) for: 'str' and 'int

WWWaahh

Wah2

32.

Which below is not a valid string operator?

Deselect Answer

in

+

*

/

33.

The blank may be filled in, for a in ___________

Deselect Answer

an iterable sequence

a range ( ) function

a single value

Both A & B

34.

Note the two Assertion and Reason statements below-

Assertion-(A): If and for are valid statements in Python.
Reason (R): If is case sensitive in Python, and its basic selection and looping statements are lowercase.
The correct option below is-Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

35.

Which of the following string functions will replace "K' with 'z'?

Deselect Answer

find ( )

Index ()

replace ( )

split ( )

36.

Consider the loop given below-

for i in range (10, 5, 3):
print(i)
How many times will this loop run?Deselect Answer

3

2

1

Infinite

37.

Note the two Assertion and Reason statements below-

Assertion -(A):””” A Sample Python String""" is a valid Python string.
Reason-(R): Triple quotation marks are not valid in Python.
The correct option below is -Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

38.

How many times is the code below executed?

X=1
while (x <= 5) :
x + 1
print(x)Deselect Answer

6

1

4

Infinite

39.

Note the two Assertion and Reason statements below-

Assertion-(A): The individual characters of a string are stored randomly in memory.
Reason-(R): Python strings are stored consecutively as individual characters in contiguous memory locations.
The correct option below is-Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

40.

Note the two Assertion and Reason statements below-

Assertion-(A): String slices and substrings, although subparts of strings, are not the same.
Reason-(R): While the substring contains a continuous subpart of the string, the slice may or may not contain a continuous subpart of the string.
The correct option below is-Deselect Answer

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(A) is true, but (R) is false (or partially true)

(A) is false (or partially true), but (R) is true

41.

The correct way to create multi-line string in Python -

Deselect Answer

str = “ "My name is Kevin and 1 live in New York""

str = “””My name is Kevin and I live in New York"””

str = "My name is Kevin and I live in New York"

All of the above

42.

The function range(3) is equivalent to -

Deselect Answer

range (1, 3)

range (0, 3)

range (0, 3, 1)

Both B & C

43.

Observe the following sentences

i. There is no conceptual limit to list size.
ii. All elements of the list must be of the same type.
iii. A given object can appear in a list more than once.
The correct pair below of which is true is given belowDeselect Answer

i, iii

i, ii

ii, iii

i, ii, iii

44.

Which of the following statements will create a selection structure?

Deselect Answer

If

if-else

for

Both A & B

45.

Which below is not a valid string operator?

Deselect Answer

in

+

*

/

46.

What will be the output when the code below is executed?

Atr1 = “Mission 999”
Str2 = “999”
Print(str1,isdigit(), str2.isdigit())Deselect Answer

False True

False False

True False

True True

47.

What is meant by the end of a statement block or suit in Python?

Deselect Answer

A comment

}

end

A line that is indented less than the previous line

48.

Consider the loop given below-

for i in range(3):
pass
What will be the final value of 'I’ after this loop?Deselect Answer

0

1

2

3

49.

Consider the loop given below -

What will be the final value of ‘I’ after this loop?
for i in range(10):
breakDeselect Answer

10

0

Error

9

50.

Consider the loop given below-

for i in range)-5):
Print(i)
How many times will this loop run?Deselect Answer

5

0

infinite

Error

COMPUTER SCIENCE – UNIT 2

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