SEE Grade Promotion Exam 2078(2022) of computer science

SEE Grade Promotion Exam 2078(2022)

Group A (10 marks)

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

a) What is a web browser?

Ans: A web browser is an application program that is used to view the information of documents or web pages.

 

b) Mention any two services provided by the internet.

Ans: Following are the services of the internet.

i) E-commerce

ii) E-mail

 

c) What is the default extension of Ms-Access?

Ans: Following are the default extension of Ms-Access.

Ms-Access 2003 is .mdb

MS-Access 2007 is .accdb

 

d) Which object of Ms-Access is used to retrieve data from the table?

Ans: Query is the object of Ms-Access used to retrieve data from the table.

 

e) Write any two advantages of modular programming.

Ans: Following are the advantages of modular programming.

i). Easy to write the program.

ii) Easy to find out bugs.

 

f) Mention any two basic data types in C language.

Ans: Following are the basic data types in C language.

i) char

ii) int

 

 2. Write appropriate technical terms for the following.      2×1=2

a) Network of networks.

Ans: Internet

b) Computer program that protects the computer from computer viruses.

Ans: Antivirus

 

3. Write the full form of the following.           2×1=2

a) POP: Post Office Protocol

b) AI: Artificial Intelligence

 

 

Group B (24 Marks)

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

a) What is a computer network? List any two importance of it.

Ans: Interconnection of two or more than two computers by using wire or wireless is known as a computer network.

Two importance of computer network are as follows:

i) Hardware and software sharing.

ii) It is fast and cheap means of communication.

 

b) What is computer ethics? Write down any two ethics of it.

Ans: Computer ethics are the moral values that stop you from doing anything that isn't legal and that doesn't harm or damage anyone's work.

Also read :Computer science NEB grade 12 solved question model set of CDC

Following are the two ethical points.

i) Do not use the computer to steal other data.

ii) Do not use pirated software

 

c) What is computer security? Write any two hardware security measures.

Ans: Computer security principally is the protection of computer systems and information from detriment, theft, and unauthorized use.

Following are the two hardware security measures.

i) Power protection

ii) Insurance

 

d) Give two differences between e-commerce and traditional commerce.

Ans: Following are the difference between e-commerce and traditional commerce.

Traditional commerce	E-commerce
In traditional commerce buy goods and services face to face,	In e-commerce buy goods and services online using digital devices laptops or Smartphones.
Limited time for traditional commerce	E-commerce can work 24 hours.
We can inspect the product before buying.	We are not able to inspect products before buying.
Cash, cheque, or card can be used for payment	A credit card, Debit card, or fund transfer is used for payment

 

e) Write any two symptoms of a computer virus.

Ans:  Following are the symptoms of a computer virus.

i) Slow down the computer system.

ii) Unwanted messages or pictures can be shown on the monitor.

iii) Size of secondary storage will reduce automatically.

iv) Your file will be converted into a shortcut.

 

f) What is DBMS? Write any two examples.

Ans: DBMS is a computer program or software which is used to manage data systematically.

Following are the two examples of DBMS:

i) Ms-Access

ii) Foxpro

 

g) What is a primary key? List any two advantages of it.

Ans: A primary key is a special relational database table column designated to uniquely identify each table record.

Following are the advantages of the primary key

i) Duplicate data prevented by the primary key.

ii) With the help of primary key relationships can be created between tables.

 

h) What is data sorting? List any two advantages of it.

Ans: The process of arranging the data in a specific order.

Following are the advantages of sorting.

i) Easy to arrange the data in the table.

ii) Data can be read easily with the help of sorting.

 

i) List the field name from the following table structure.

Also read :Computer Science NEB grade 12 question model solution

Symbol no	Name	Marks
00100200Q	Mahesh Joshi	85
00100201R	Sujata Gurung	91

 Ans: The field names are:

Symbol no, Name, Marks

 

5. Write down the output of the given program. Show with dry run table.   2

DECLARE SUB result(c$)

c$="COMPUTER"

CALL result(c$)

END

SUB result(c$)

FOR c=1 TO LEN(c$) STEP 2

m$=MID$(c$,c,1)

n$=n$+m$

NEXT c

PRINT n$

END SUB

 

Dry Run:

Variable C$	Check Loop	Variable m$	Variable n$	Output
COMPUTER	1 to 8? Yes	C	C
COMPUTER	3 to 8? Yes	M	C+M=CM
COMPUTER	5 to 8? Yes	Also read :Computer Science SEE Model Set U	CM+U=CMU
COMPUTER	7 to 8? Yes	E	CMU+E
COMPUTER	9 to 8? No Exit from loop			CMUE

 

Final Output:

CMUE

 

6. Re-write the given program after correcting bugs.                  2

REM to display records from the existing file.

CLS

OPEN "empt.txt" FOR APPEND AS #1

WHILE NOT EOF(#1)

WRITE #1, en$, post$, salary

PRINT en$, post$, salary

CLOSE #1

END

 

Debugged Program:

REM to display records from the existing file.

CLS

OPEN "empt.txt" FOR INPUT AS #1

WHILE NOT EOF(1)

INPUT #1, en$, post$, salary

PRINT en$, post$, salary

WEND

CLOSE #1

END

 

 7. Study the following programs and answer the given questions.      2×1=2

DECLARE FUNCTION prod(a,b)

CLS

INPUT "Enter first number";a

INPUT "Enter second number";b

PRINT "The product of the two number=";prod(a,b)

END

 

Also read :SEE question model set of computer for grade 10

FUNCTION prod(a,b)

p=a*b

prod=p

END FUNCTION

a) List the numerical variables used in the program.

Ans: A, B, and P are the numerical variables used in the above program.

b) List the local variables used in the above program.

Ans: P is the local variable used in the above program.

 

Group C (16 Marks)

8. Convert/calculate as per the instruction.                   4×1=4

i) (214)₁₀ = (?)₂

 

ii) (ABC)₁₆ =(?)₂

Hexadecimal number	A	B	C
Equivalent Binary Number	1010	1011	1100

(ABC)₁₆ =(101010111100)₂

iii) (1011)₂ × (101)₂ + (101)₂

 

iv) (101110)₂ ÷ (110)₂

 

9. a) Write a program to calculate the area of a circle using the function procedure and use the SUB procedure to calculate its circumference in QBASIC. [Hints: (A=πr²) , (C=2πr)]

DECLARE FUNCTION area(r)

DECLARE SUB cirm(r)

CLS

INPUT "Enter radius";r

PRINT area(r)

CALL cirm(r)

END

 

FUNCTION area(r)

area=3.14*r²

END FUNCTION

 

SUB cirm(r)

c=3.14*2*r

PRINT c

END SUB

Also read :Ace Your Exams with SEE Class 10 Computer Science Model Set

 

b) Student name, class, section, and address are stored in a data file called "student.dat". Write a program to print all the records of students.

OPEN "student,dat" FOR INPUT AS #5

CLS

DO WHILE NOT EOF(5)

INPUT #5, name$,cl,s$,add$

PRINT name$,cl,s$,add$

LOOP

CLOSE #5

END

 

You may also Read:

CDC new question model of computer

10. Write a program in C language to input a number and check whether the number is full divisible by 5 or not.

#include<stdio.h>

#include<conio.h>

main()

{

int num;

printf("Enter any number");

scanf("%d",&num);

if(num%5==0)

printf("Fully divisible by 5);

else

printf("Not fully divisible by 5);

getch();

}

 OR

 Write a program in C language to display the series 2,4,6,8 upto 10^th term.

#include<stdio.h>

#include<conio.h>

main()

{

          int x,a=2;

          for(x=1;x<=10;x++)

          {

                   printf("%d\t",a);

                   a=a+2;

          }

}