TN 12th Question Paper 2026 Computer Science

FOR TN 12TH EXAM PREPARATION

TN 12th 2026
Question Paper ·
Computer Science
EXAM YEAR TYPE SUBJECT

TN 12th 2026 Question Paper Computer Science

Notes · Sample Papers · Previous Year Papers · Mock Tests

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No. of Printed Pages : 8
9072

!9072ComputerScience! £vÄ Gs
Register Number

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PoÛ m . AÔ¯À s e
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( / Tamil & English Version )
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Põ» AÍÄ : 3.00 ©o ÷|µ® ] [ ö©õzu ©v¨ö£sPÒ : 70

Time Allowed : 3.00 Hours ] [ Maximum Marks : 70

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Instructions : (1) Check the question paper for fairness of printing. If there is any lack of fairness,

inform the Hall Supervisor immediately.

(2) Use Blue or Black ink to write and underline and pencil to draw diagrams.

£Sv & I / PART - I

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SÔ¨¦ : (i) AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®.
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(ii)

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Note : (i) Answer all the questions.

(ii) Choose the most appropriate answer from the given four alternatives and write

the option code and the corresponding answer.

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9072 2

1. Aͦ¸UPÒ Aݨ¦® ÷£õx £UP ÂøÍÄPøÍ HØ£kzx® ö\¯ØTÖ __________

GßÖ AøÇUP¨£k®.
(A) ö\¯ØTÖ
Dynamic (B) ö\¯ØTÖ Impure

(C) ö\¯ØTÖ
Pure (D) ö\¯ØTÖ Partial

The function which cause side effects to the arguments passed are called __________.

(a) Dynamic function (b) Impure function

(c) Pure function (d) Partial function

2. E¸Áø©¨¦ AÔ¯¨£mh uµÄÁøP __________ GÚ AøÇUP¨£kQÓx.
(A) (B)
Concrete datatype Built in datatype

(C) (D)
Abstract datatype Derived datatype

The datatype whose representation is known are called __________.

(a) Concrete datatype (b) Built in datatype

(c) Abstract datatype (d) Derived datatype

3. G¢u EÖ¨¦PøÍ CÚUSÊÂØS öÁÎ÷¯ C¸¢x® AqP •i²® ?
(A) EÖ¨¦PÒ
Secured (B) EÖ¨¦PÒ Public

(C) EÖ¨¦PÒ
Private (D) EÖ¨¦PÒ Protected

Which members are accessible from outside the class ?

(a) Secured members (b) Public members

(c) Private members (d) Protected members

4. ö|Ô•øÓ°ß ö\¯ÀvÓøÚ AÍÂh Cµsk •UQ¯ AÍÃkPÒ __________.

(A) ÷|µ® ©ØÖ® Ch® (B) ö\¯¼ ©ØÖ® {øÚÁP®
(C) ]UPÀ ©ØÖ® ÷|µ® (D) uµÄ ©ØÖ® Ch®
Two main measures for the efficiency of an algorithm are __________.

(a) Time and Space (b) Processor and Memory

(c) Complexity and Time (d) Data and Space

5. ø£zuõß ìQ›¨møh C¯UP £¯ß£k® Âø\ Gx ?
(A) F5 (B) (C) F1 F10 (D) F2

Which key is used to execute Python Script ?

(a) F5 (b) F1 (c) F10 (d) F2

6. a &ß ©v¨¦ 52 GÛÀ, RÌPõq® ø£zuõß {µ¾UPõÚ öÁαk Gx ?
x=''even'' if a%2==0 else ''odd''
print(x)
(A) error (B) even

(C) öÁαk CÀø» (D) odd

Which of the following is the output of the given Python code if the value of a is 52 ?

x=''even'' if a%2==0 else ''odd''
print(x)
(a) error (b) even

(c) no output (d) odd

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7. ußøÚzuõ÷Ú AøÇzxUöPõÒЮ ö\¯ØTøÓ __________ GÚ AøǨ£º.
(A) »õ®hõ (B) EÒÎøn¢u (C) Return (D) uØ_ÇØ]
A function which calls itself is called as :

(a) Lambda (b) Built in (c) Return (d) Recursion

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8. ¤ßÁ¸ÁÚÁØÖÒ Gx \µ[PøÍ CønUP £¯ß£k® ö\¯ØSÔ¯õS® ?
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(A) * (B) (C) + (D) = &

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Which of the following operator is used for concatenation ?
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(a) * (b) + (c) = (d) &

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9.

(A)
a
mylist=[10, 20, 30, 40]

[10, 35, 20, 30, 40]
GÛÀ, mylist.append(35)

(B)
&ß Âøh
[10, 20, 30, 40, 35]
__________.

(C) [35, 10, 20, 30, 40] (D) [10, 20, 30, 35, 40]

If mylist=[10, 20, 30, 40] then mylist.append(35) will result :

(a) [10, 35, 20, 30, 40] (b) [10, 20, 30, 40, 35]

(c) [35, 10, 20, 30, 40] (d) [10, 20, 30, 35, 40]

10. ¤ßÁ¸ÁÚÁØÖÒ Gx private CÚUSÊ ©õÔ ?
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(A) (B)
$$num _ _num (C) ++num (D) ##num

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Which of the following is the private class variable ?

(a) $$num

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(b) _ _num

laAøÇUP¨£k£Áº ¯õº ?
(c) ++num (d) ##num

11. g
a (B)
EÓÄ{ø» uµÄuÍzvß u¢øu GÚ
(A) Edgar Frank Codd Chris Date

(C) Chand (D) Hugh Darween

Who is called Father of Relational Database from the following ?

(a) Edgar Frank Codd (b) Chris Date

(c) Chand (d) Hugh Darween

12. PmhøÍ AmhÁøn°ß
__________ ÁiÁø©¨ø£ ©õØÔ¯ø©UP
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AÝ©vUQÓx.
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(A) (B)
MODIFY (C) SELECT ALTER (D) ORDER BY

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__________ command is used to change the structure of the table.

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l as (a) MODIFY (b) SELECT (c) ALTER

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(d) ORDER BY

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(A)
Gߣuß Â›ÁõUP®
Control Router and Line Feed
:

(B) Carriage Return and Line Feed

(C) Control Return and Line Feed (D) Carriage Return and Form Feed

The expansion of CRLF is :

(a) Control Router and Line Feed (b) Carriage Return and Line Feed

(c) Control Return and Line Feed (d) Carriage Return and Form Feed

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9072 4

14. ø£zuõß ©ØÖ® C++ {µÀPøÍ Cøh•P£kzxÁuØPõÚ Pmhø©¨¦ :

(A) Cython (B) (C)
Ctypes (D) Boost SWIG

A framework for interfacing Python and C++ is :

(a) Cython (b) Ctypes (c) Boost (d) SWIG

15. __________ ö\¯ØTÖ ÷uº¢öukUP¨£mh ¦»zvß ö£›¯ ©v¨ø£z v¸¨¤
Aݨ¦®.
(A) HIGH( ) (B) MAX( ) (C) MAXIMUM( ) (D) LARGE( )

__________ function returns the largest value of the selected column.

(a) HIGH( ) (b) MAX( ) (c) MAXIMUM( ) (d) LARGE( )

£Sv & II / PART - II

SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 24 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 6x2=12

Note : Answer any six questions. Question No. 24 is Compulsory.

16. xøn{µÀ GßÓõÀ GßÚ ?
What is subroutine ?

17. Private ©ØÖ® Protected AqQ¯À¦PøÍ ø£zuõß GÆÁõÖ SÔ¨¤kQÓx ?
How Python represents the Private and Protected Access specifiers ?

18. RÌPõq® ø£zuõß SÔ•øÓ°ß öÁαk GßÚ ?
What is the output of the following Python code ?

a=10
b=3
print(a/b)
print(a%b)
print(a**b)
print(a//b)

19. ¤ßÁ¸® ö\¯ØTÖPøÍ ©v¨¥k ö\´x Auß öÁαmøh GÊxP.
Evaluate the following function and write the output.

import math
x=26.72
y=64
print(math.floor(x))
print(math.ceil(x))
print(math.sqrt(y))
print(round(x,1))

20. ¤ßÁ¸® ø£zuõß SÔ•øÓ°À &ß ©v¨¦ GßÚ ? x

What will be the value of x in the following Python code ?

l=[1, 2, 3, 4, [5, 6, 7]]

x=len(l)

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21. uµÄ {ø»zußø© GßÓõÀ GßÚ ?
What is data consistency ?

22. next( ) ö\¯ØTÔß £¯ß£õk GßÚ ?
What is the use of next( ) function ?

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uµÄuÍzøu £¯ß£kzx® £¯ÚºPøÍ SÔ¨¤hÄ®.
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23.

Mention the users who uses the database.

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24.
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RÌPõq® ø£zuõß {µ¼ß öÁαk GßÚ ? ag
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What will be the output of following Python code ?

s=[x**2 for x in range(1, 5)]
print(s)
print(sum(s))

£Sv & III / PART - III

SÔ¨¦ : H÷uÝ® BÖ ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 33 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 6x3=18

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Note :
c
Answer any six questions. Question No. 33 is Compulsory.

.ÁÈ•øÓPÒ ¯õøÁ ? GkzxUPõmk
25. À EÒÍ EÖ¨¦PøÍ AqS® £À÷ÁÖ
list -
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u¸P.
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What are the different ways to access the elements of a list ? Give example.

26. C¯[S {µ»õUP® £ØÔ }º AÔÁÚ ¯õøÁ ?
What do you understand by Dynamic Programming ?

27. AøÚzx ‰ßÖ C»UP JØøÓ¨£øh (odd) GsPøÍ öÁΰkÁuØPõÚ {µø»
GÊxP.
Write a program to display all 3 digit odd numbers.

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28. ¤ßÁ¸ÁÚÁØøÓ £ØÔ uS¢u GkzxUPõmkhß SÔ¨¦ ÁøµP.
e m
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(A) (B)
capitalize( ) swapcase( )

l as
s
Write a short note about the following with suitable example.

la (a) capitalize( ) (b) swapcase( )
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29. ø£zuõÛÀ BUQ ©ØÖ® AȨ¤PøÍ GÆÁõÖ Áøµ¯Ö¨£õ´ ?
How to define constructor and destructor in Python ?

30. ø£zuõß ©ØÖ® C++ ÷ÁÖ£kzxP .

Differentiate PYTHON and C++.

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9072 6

31. J¸ ¦v¯ ¦»zøu ÷\º¨£uß ‰»® ©õnÁº AmhÁøn Pmhø©¨ø£ ©õØÔ
Aø©UP J¸ TØøÓ GÊxP.
SQL

Write a SQL statement to modify the student table structure by adding a new field.

32. îì÷hõQµõ® ©ØÖ® £møhÂÍUP¨ £h[PÐUPõÚ •UQ¯ ÷ÁÖ£õkPÒ
H÷uÝ® ‰ßÔøÚ GÊxP.
Write any three key differences between Histogram and Bar Graph.

33. öPõkUP¨£mh ø£zuõß {µ¼ß öÁαk GßÚ ?
What will be the output of the given Python code ?

a=''Computer''
b=''Science''
x=a[:3]+b[len(b)-2:]
print(x.upper())
£Sv & IV / PART - IV

SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 5x5=25

Note : Answer all the questions.

34. (A) ¤ßÁ¸® {µ¼À
let rec gcd a b :=

if b < > 0 then gcd b (a mod b)

else

return a

ö\¯ØTÔß ö£¯º
(i)

uØ_ÇØ] ö\¯ØTÖ TØÖ
(ii)

Aͦ¸ ©õÔPÎß ö£¯º
(iii)

ö\¯ØTøÓ uØ_ÇØ]US AøÇUS® TØÖ
(iv)

uØ_ÇØ]ø¯ •iÄUS öPõskÁ¸® TØÖ
(v)

BQ¯ÁØøÓ GÊxP.
AÀ»x
(B) &À
Python &¼¸¢x EÖ¨¦PøÍ }USÁuØPõÚ öÁÆ÷ÁÖ ÁÈ•øÓPøÍ
List

GkzxUPõmkhß ÂÍUSP.
(a) Identify in the following program.

let rec gcd a b :=

if b < > 0 then gcd b (a mod b)

else

return a

(i) Name of the function.

(ii) Identify the statement which tells it is a recursive function.

(iii) Name of the argument variables.

(iv) Statement which invoke the function recursively.

(v) Statement which terminates the recursion.

OR

(b) Explain the different ways to delete elements from the list in Python with example.

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35. (A) Á›ø\•øÓz ÷uhÀ ö|Ô•øÓ°øÚ ÂÍUSP.
AÀ»x
(B) öPõkUP¨£mh Gsoß öuõhº ö£¸UPø» (factorial) PnUQh for ©hUQøÚ
£¯ß£kzv ø£zuõß {µÀ GÊxP.
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(a)

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Explain Linear Search Algorithm.

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(b)
em
Write a Python program to calculate factorial of the given number using for loop.

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36.
a
(A) ø£zuõÛÀ ìQ›¨m •øÓø© {µ»õUP® £ØÔ GÊxP.
AÀ»x
(B) ø£zuõÛÀ ©õÔ°ß Áøµö¯Àø»PøÍ GkzxUPõmkhß ÂÍUSP.
(a) Describe in detail the procedure of script mode programming in Python.

OR

(b) Explain the scope of variables in Python with example.

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37. (A) ¤ßÁ¸® TØÖPÐUPõÚ öÁαmøh
Python GÊxP.
s e
la
''
strl= Welcome to Python Programming ''

print(strl[11:16])
print(strl[11:]) ag
print(strl[:7])
print(strl[::3])
print(strl[::-5])
AÀ»x
(B) uµÄuÍzvÀ EÒÍ EÓÄ{ø»PÎß ÁøPPøÍ ÂÍUSP.
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(a) Write the output of the following Python statements.

m strl= Welcome to Python Programming
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'' ''

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s e
print(strl[11:16])

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la a
print(strl[11:])

ag print(strl[:7])
print(strl[::3])
print(strl[::-5])
OR

(b) Explain the different types of relationship mapping in database.

[ v¸¨¦P / Turn over

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9072 8

38. (A) RÌPõq® student AmhÁønø¯ P¸zvÀ öPõsk (i) •uÀ (v) Áøµ°»õÚ
ÂÚõUPÐUS SQL PmhøÍPøÍ GÊxP.
Rollno Name Gender Average

101 ANU Female 98

102 BALAN Male 95

103 RAVI Male 82

104 DEVI Female 89

105 MANI Male 75

AøÚzx ©õnÁºPÎß AøÚzx ÂÁµ[PøͲ® ö£¯›ß
(i)

Ai¨£øh°À CÓ[SÁ›ø\°À Põs¤UPÄ®.
¦vuõP J¸ ©õnÁ›ß ÂÁµ[PøÍ ÷\ºUPÄ®.
(ii)

(iii) ©v¨ö£s •uÀ Áøµ EÒÍ ©õnÁºPÎß ÂÁµ[PøÍ
Average 70 90

Põs¤UPÄ® .

(iv) GßÓ ÂÁµ® Eøh¯ ©õnÁ›ß £vøÁ }UPÄ®
Rollno=103 .

(v) ©õnÁºPÒ ÂÁµ[PøÍ Põs¤UPÄ®.
Female

AÀ»x
(B) ¤ßÁ¸® TØÖPÐUPõÚ ö\¯ØTÖPøÍ GÊuÄ®. Matplotlib

Aa_UPõÚ ö£¯›øÚ ÁÇ[PÄ®.
(i) x

Aa_UPõÚ ö£¯›øÚ ÁÇ[PÄ®.
(ii) y

Áøµ£hzvØPõÚ uø»¨¤øÚ ÁÇ[PÄ®.
(iii)

ÁøµÂø¯ Põm]£kzuÄ®.
(iv)

öPõhõ{ø» ¦øÚÄPøÍ ö\¯»õUPÄ®.
(v)

(a) Consider the following student table. Write SQL commands for the questions (i) to (v).

Rollno Name Gender Average

101 ANU Female 98

102 BALAN Male 95

103 RAVI Male 82

104 DEVI Female 89

105 MANI Male 75

(i) To display all details of all students in descending order of name.

(ii) To add details of a new student.

(iii) To display all student details whose Average is between 70 and 90.

(iv) To remove the student detail whose Rollno=103.

(v) To display the details of female students.

OR

(b) Write the Matplotlib functions for the following statements.

(i) To label the x axis.

(ii) To label the y axis.

(iii) To assign the plot’s title.

(iv) To display the plot.

(v) To invoke the default legend.

- o 0 o -

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