Kerala Plus One Question Paper 2023 Computer Science and Information Technology

FIRST YEAR

Kerala Board
Question Paper
2023

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Reg. No. : ......................................
Name : ...........................................
FY-452
FIRST YEAR HIGHER SECONDARY EXAMINATION, MARCH 2023

Time : 2 Hours
Part – II Cool-off time : 15 Minutes
COMPUTER SCIENCE & INFORMATION TECHNOLOGY
Maximum : 60 Scores

General Instructions to Candidates :
 There is a ‘Cool-off time’ of 15 minutes in addition to the writing time.
 Use the ‘Cool-off time’ to get familiar with questions and to plan your answers.
 Read questions carefully before answering.
 Read the instructions carefully.
 Calculations, figures and graphs should be shown in the answer sheet itself.
 Malayalam version of the questions is also provided.
 Give equations wherever necessary.
 Electronic devices except non-programmable calculators are not allowed in the
Examination Hall.

 
    15  ‘  ’ .
 ‘  ’    
 .
      .
    .
  , , ,   
.
   .
    .
     
    .

FY-852 1 P.T.O.

PART – A

Answer any 5 questions from 1 to 6. Each carries 1 score. (5  1 = 5)

1. ________ port is used to connect the projector to computer.

(a) RJ-45 (b) parallel

(c) PS/2 (d) HDMI

2. ________ are the smallest individual units in a program.

(a) Tokens (b) Keywords

(c) Identifiers (d) None of these

3. __________ is called ternary operator.

(a) # (b) ++

(c) != (d) ?:

4. Which among the following is a stream input function ?

(a) get() (b) getch()

(c) getchar() (d) All of these

5. The transmission media which carries information in the form of light signals.

(a) Coaxial (b) Twisted pair

(c) Optical Fiber (d) None of these

6. _________ is an attempt to acquire personal information by imitating the original
website.

(a) Phishing (b) Hacking

(c) DoS (d) Spoofing

FY-452 2

PART – A

1  6    5  .
1  . (5  1 = 5)
1.     ________
.
(a) RJ-45 (b) parallel
(c) PS/2 (d) HDMI

2. ________      individual .

(a) Tokens (b) Keywords
(c) Identifiers (d) 

3. __________  ternary .

(a) # (b) ++
(c) != (d) ?:

4.     stream input function ?
(a) get() (b) getch()
(c) getchar() (d) All of these

5.      transmission 
(a) Coaxial (b) Twisted pair
(c) Optical Fiber (d) None of these

6.     
  _________.
(a) Phishing (b) Hacking
(c) DoS (d) Spoofing

FY-452 3 P.T.O.

PART – B

Answer any 11 questions from 7 to 19. Each carries 2 scores. (11  2 = 22)

7. Rewrite the following using if ... else statement :

l = a > b ? a : b;

8. Write notes on arithmetic operators in C++.

9. Which are the fundamental data types in C++ ? Explain.

10. (a) Find the memory requirement of the variable m in bytes. (1)

float m[10];

(b) Find the value of x in the following code : (1)

int a[5]={10,20,11,55,34};

x = a[2];

11. Write any two differences between library functions and user defined functions.

12. Match the following :

(A) (B)

(i) islower() stdlib.h

(ii) exit() ctype.h

(iii) sqrt() string.h

(iv) strlen() math.h

FY-452 4

PART – B

7  19    11  .
2  . (11  2 = 22)

7.   if ... else statement   :

l = a > b ? a : b;

8. C++  arithmetic operators-  .

9. C++  fundamental data types  ? .

10. (a) m  variable  memory requirement  byte  . (1)

float m[10];

(b)   code  x    : (1)

int a[5]={10,20,11,55,34};

x = a[2];

11.  functions- user defined function-   
.

12.   :

(A) (B)

(i) islower() stdlib.h

(ii) exit() ctype.h

(iii) sqrt() string.h

(iv) strlen() math.h

FY-452 5 P.T.O.

13. Identify the types of the following literals :

‘\0’, 0, ‘0’, “0”

14. Give any four rules for naming identifiers.

15. Explain any four Flowchart symbols.

16. What is Cache Memory ?

17. Explain ASCII code.

18. Find the value of X in the following :

(a) (204)10 = (X)2

(b) (111011)2 = (X)8

19. Fill the chart :

Generation Main hardware component

(i) First ______________

(ii) Second ______________

(iii) Third ______________

(iv) Fourth ______________

FY-452 6

13.   literal- type  :

‘\0’, 0, ‘0’, “0”

14. Identifier-      .

15.   Flowchart symbols .

16.  Cache  ?

17. ASCII  .

18.   X    :

(a) (204)10 = (X)2

(b) (111011)2 = (X)8

19.   :

   

(i) First ______________

(ii) Second ______________

(iii) Third ______________

(iv) Fourth ______________

FY-452 7 P.T.O.

PART – C

Answer any 7 questions from 20 to 28. Each carries 3 scores. (7  3 = 21)

20. Draw the symbol and truth table of basic logic gates.

21. Explain any three functions of Operating System.

22. Write the differences between RAM and ROM.

23. Write an algorithm to find the largest of two numbers.

24. How do console oriented functions differ from stream functions ? Give one example
each.

25. Write a program to print the day of the week when we input day number.

26. Compare entry controlled and exit controlled loops. Give examples.

27. Write any three advantages of networking of computers.

28. Explain any three services on internet.

FY-452 8

PART – C

20  28    7  .
3  . (7  3 = 21)

20.   gates  symbol- truth table- .

21.     functions .

22. RAM- ROM-   .

23.     algorithm .

24. Console  functions- stream functions- 
.    .

25.        
.

26. Entry controlled- exit controlled- loops-   
.

27.      .

28.     .

FY-452 9 P.T.O.

PART – D

Answer any 3 questions from 29 to 33. Each carries 4 scores. (3  4 = 12)

29. Write the difference :

(a) = and = = (2)

(b) + and ++ (2)

30. State De Morgan’s theorem and prove using truth table.

31. Write a program to read and print MXN matrix.

32. Explain the different types of networks.

33. Discuss the advantages and disadvantages of Social Media.

_____________

FY-452 10

PART – D

29  33    3  .

4  . (3  4 = 12)

29.  :

(a) = and = = (2)

(b) + and ++ (2)

30. De Morgan’s theorem  truth table  .

31.  MXN matrix       .

32.    .

33.      .

_____________

FY-452 11 P.T.O.

FY-452 12