SOLVED COMPUTER SCIENCE SEE (Grade Increment) 2081 (2025)

 

 

SOLVED COMPUTER SCIENCE SEE (Grade Increment) 2081 (2025)

 

 

 (Group 'A')

 

 

1. Answer the following questions in one sentence:

 

a)      Name any two unguided transmission media.

Any two unguided transmission media are radio wave and microwave.

 

b)     What is online payment?

Online payment refers to the payment for buying goods or services through the internet using different online payment gateway.

 

c)      Write down any two objects of MS-Access

Any two objects of MS-Access are table and form.

 

d)     What is report?

Report is one of the MS-Access database objects used to present information in an effective and organized format that is ready for printing.

 

e)      Write the function of 'WRITE statement.

The function of write statement is to write data to a sequential file. It inserts commas between the data items. It encloses strings in double quotation marks.

 

f)       Write down any two data types used in in C-language.

Any two data types used in in C-language are int and char.

 

2. Write appropriate technical term for the following:

a)      An illegal activity done thrown computer and internet.  Cyber Crime

 

b)     The rate at which data st which data is transmitted through a given medium. Bandwidth

 

3. Write the full form of the following:

 

a)      ISP – Internet Service Provider

b)     G2G – Government to Governement

 

समूह 'ख' (Group 'B')

 

 

4. Answer the following questions:

 

a)      What is data communication? List two modes of data communication.

Data communication is the process of transferring data and information between computers and other electronic devices. Two modes of data communication mode are simplex and duplex mode.

 

b)     Define Antivirus software with two examples.

Antivirus software is a program that scans, detects, and removes malicious software from a computer or device to protect it from security threats.

 

c)      What is software security? Write any two measures of hardware security

 

 

Software security is the protection of computer programs and applications from threats, such as hacking, virus attacks, and unauthorized access, to ensure their confidentiality, integrity, and availability.

Any two hardware security are regular maintenance and power protection device.

 

d)     What is Internet of Things (IoT) Write any two importance of it.

Internet of Things (IoT) refers to a network of interconnected physical devices that can collect and exchange data over the internet without requiring human intervention.

Any two importance of IoT are:

It reduces the human effort, so it saves a lot of time. 

Information is easily accessible from any place at any time on any device.

 

e)      Define e-commerce with its types

E-commerce refers to the buying and selling of goods and services over the internet.

Its types are:

·         Business to Consumer (B2C)

·         Business to Business (B2B)

·         Consumer to Consumer (C2C)

·         Consumer to Business (C2B):

f)       What is table? Which view is used Modify a table?

Tables are the primary building block of database which stores and manages large volume of data into rows and column. Design view is used to modify a table.

 

g)      What is Query? List any two importance's of it

Query is an object of database that is used to view, retrieve, change and analyze records from a table or multiple linked tables based on specified condition.

Any two importance of query are:

·         Queries enable users to retrieve specific data from tables or other data sources, based on specified criteria.

·         Queries allow users to filter, sort, and group data in meaningful ways.

 

h)     Define Validation rule and Validation text

Validation Rule is a field property which is used to limit the values that can be entered into a field.

Validation Text is a field property which displays an error message that appears if the data entered is invalid according to the specified validation rule.

 

i)        Give any two difference between Form and Report

Form	Report
Form is primarily used for entering data	Report is used for presenting the data.
Data can be modified through the form.	Data can not be modified through report.

 

5. Write down the output of the given program and show them in dry run table:

 

DECLARE SUB Result (A$)

A$="Development"

CALL Result (A$)

END

 

SUB Result (A$)

FOR C=1 TO LEN(A$) STEP 2

XS=MID$(AS,C,1)

PRINT X$

NEXT C

END SUB

 

Dry Run

A$	C=1 TO LEN(A$) STEP 2	XS=MID$(AS,C,1)	PRINT X$
Development	1 to 11 step 2 yes	1,1 D	D
	3 to 11 step 2 yes	3,1 v	v
	5 to 11 step 2 yes	5,1 e	l
	7 to 11 step 2 yes	7,1 o	p
	9 to 11 step 2 yes	9, 1 m	e
	11 to 11 step 2 yes	11,1 n	t
	13 to 11 step 2 no Loop exists

The output of the program is:

D

v

l

p

e

t

 

 

 

6. Rewrite the given program after correcting the hugs:

 

REM to display records

OPEN "marks.dat” FOR INPUT AS #1

CLS

PRINT "Roll Number", "Name", "English", "Nepali

DO WHILE NOT EOF()

INPUT #1, RN, N$, E, Ne

DISPLAY RN, N$, E, Ne

WEND

CLOSE

END

 

Debugged Program

REM to display records

OPEN "marks.dat” FOR INPUT AS #1

CLS

PRINT "Roll Number", "Name", "English", "Nepali

DO WHILE NOT EOF(1)

INPUT #1, RN, NS, E, Ne

PRINT RN, NS. E. Ne

LOOP

CLOSE #1

END

 

7. Study the following program and answer the given questions:

 

DECLARE FUNCTION MUL (A, B)

M = 5

N = 3

PRINT MUL (M.N)

END

 

FUNCTION MUL (A, B)

MUL=A*B

END FUNCTION

 

a)      List the parameters used in the above program.

The parameters used in the above program are A and B.

 

b)     Which procedure is used in the above program?

FUNCTION Procedure is used in above program.

 

(Group 'C')

 

 

8. Convert/Calculate as per the instruction:

a)      (00101001)2 = (x)16

b)     (86)10 = (x)2

c)      (111) x (10) – (111)

d)     (1011) / (10)

 

9. Answer the following questions:

 

a) Write a program in Q-BASIC-to ask for three numbers from the user and find the average üsing SUB PROCEDURE and find the sum by using the FUNCTION PROCEDURE

 

DECLARE SUB Average(X, Y, Z)

DECLARE FUNCTION Sum(A, B, C)

CLS

INPUT "Enter first number: ", A

INPUT "Enter second number: ", B

INPUT "Enter third number: ", C

CALL Average(A, B, C)

PRINT "Sum of three numbers= "; Sum(A, B, C)

END

 

SUB Average(X, Y, Z)

    AVG = (X + Y + Z) / 3

    PRINT "Average of three numbers = "; AVG

END SUB

 

FUNCTION Sum(A, B, C)

    Sum = A + B + C

END FUNCTION

 

b) Write a program in Q-Basic to create a sequential data file named "record.txt" and store Roll number, Name, Address and Class of few students.

 

OPEN "record.txt" FOR OUTPUT AS #1

DO

CLS

    INPUT "Enter Roll number: ", R

    INPUT "Enter Name: ", N$

    INPUT "Enter Address: ", A$

    INPUT "Enter Class: ", C$

    WRITE #1, R, N$, A$, C$

    INPUT “Do you want to continue(Y/N”; CH$

    LOOP WHILE UCASE$(CH$)=”Y”

CLOSE #1

END

 

10. Write a program in C-language that asks a number and check whether the input number is odd or even. ✓

 

 

#include <stdio.h>

int main()

{

    int num;

    printf("Enter a number: ");

    scanf("%d", &num);

 

    if(num % 2 == 0)

        printf("%d is Even\n", num);

    else

        printf("%d is Odd\n", num);

 

    return 0;

}

 

OR

 

 

Write a program in C-language to display the given series 2, 4, 6, 8, 10,100

 

 

#include <stdio.h>

int main()

{

    int i;

    for(i=2; i<=100; i+=2)

{

        printf("%d ", i);

    }

    return 0;

}

 

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