SEE Model Questions Computer Set II 2079

Model Question

Sub: Computer Science

Grade: Ten                                                                                                                         FM = 50       

Time: 1hr. 30 mins                                                                                     

Attempt all the questions.

Group A

1.      Answer the following questions in one sentence (6 × 1=6)

a.       Define web browser.

b.      What is mobile computing?

c.       Define form in MS Access database.

d.      What is data redundancy?

e.       What is file handling in QBasic?

f.        Define Unary Operator in C language?

2.      Write down the single technical term for the following [2× 1 = 2]

a.       A device that is used to translate analog signals into digital and vice versa.

b.      The use of computer technology to create a simulated environment.

3.      Write the full forms for the following:       [2 × 1 = 2]

a. TCP/IP                                b. IoT

 

Group B

4.      Answer the following questions.  (9×2=18)

a.       What is computer network? Write any two disadvantages of client server architecture.

b.      Mention any two threats and two opportunities of using social media.

c.       What is cryptography? Write the role of UPS in computer system.

d.      What is e-commerce? Write any two benefits of e-commerce.

e.       What is cloud computing? Write any two services of cloud storage.

f.        Define Data and Database with examples.

g.      What is primary key? Why it is important?

h.      What is query? Write it’s uses.

i.        Write any two differences between sorting and filtering.

5.      Write the output of the program.                            [2]

            DECLARE SUB SHOW (A, B)

         CLS

         X=1 : Y=2

         CALL SHOW (X, Y)

         END

         SUB SHOW (A ,B)

         I=1

         DO

         PRINT A;

         A=A+B

         B=A+B

         I=I+1

         LOOP WHILE I <= 5

         END SUB

6.      Rewrite the program after correcting the bugs.    [2]

REM program to reverse the string or word

DECLARE SUB REV(W$)

CLS

INPUT “Enter a word”; W$

CALL REV$(W$)     

END

SUB REV(W$)

FOR I = LEN(W$) TO 1 STEP -1

C$ = LEFT$(W$, I, 1)

D$ = D$ + C$

LOOP

PRINT “Reversed string is” ; D$

CLSOE SUB

 

 

 

7.      Analyze the program given below and answer the following question.   2

DECLARE FUNCTION count(N$)

CLS

INPUT “ENTER A WORD”; R$

C = COUNT(R$)

PRINT C

END

FUNCTION COUNT(N$)

FOR K = 1 TO LEN(N$)

X$ = MID$(N$, K,1)

IF UCASE$(X$) = “A” THEN X= X + 1

NEXT K

COUNT = X

END FUNCTION

A.    List any two library functions used in the above program.

B.     Write the use of variable ‘C’ in line 3.

[i.e. C = COUNT(R$) given in the above program]

Group C (4×4=16)

8.      Convert or Calculate as instructed:             [4 × 1 = 4]

a.        (432)₈   into decimal

b.       (C23)₁₆ into Octal 

c.       (101011)₂ + (1101)₂ - (1011)₂

d.      Divide 100101 by 110

9.      Write the QBasic program for the following.   [4 × 3 = 12]

a.       WAP to display area of four wall using sub procedure. and to find the volume of wall using function procedure. [Hint: Area of four wall = 2H(L+B)  Volume = L×B×H]

b.      A sequential data file called “Record.txt” has stored data under the field heading Roll No., Name, Gender, English, Nepali, Math’s and Computer. Write a program to display all the information of female students who pass in all subjects. [Note: Pass mark in all subject is 40]

10.  Write a C program to display the reverse of input number.

OR

Write a C program to check whether the input number is negative positive or zero.

BEST OF LUCK