MBOSE Class 10 Question Paper 2024 for Compuer Science

Meghalaya Board of School Education

QUESTION
PAPERS

Total No. of Printed Pages—12
X/24/CSc

2024

COMPUTER SCIENCE

( FOR CANDIDATES WITH INTERNAL ASSESSMENT )

Full Marks : 80
Pass Marks : 24

( FOR CANDIDATES WITHOUT INTERNAL ASSESSMENT )

Full Marks : 100
Pass Marks : 30

Time : 3 hours

( FOR ALL CATEGORIES OF CANDIDATES )

General Instructions :

(i) The candidates are advised to attempt all questions
accordingly.

(ii) Marks allocated to every question are indicated against
each.

(iii) Sections A and B are to be answered by all candidates.

(iv) Section C is to be answered by candidates without
internal marks.

/60 [ P.T.O.

( 2 )

SECTION—A
( Maximum Marks : 30 )
( Objective-type Questions )

1. Choose and write the correct answer for the following :
1×10=10
(a) Which of the following is a multiuser, multitasking
operating system?
(i) MS Windows
(ii) UNIX
(iii) Linux
(iv) Mac OS

(b) Which of the following Linux commands gives the
privilege of System Administrator?
(i) nano
(ii) du
(iii) sudo
(iv) cat

(c) In which year was the word ‘Internet’ used for the
first time?
(i) 1981
(ii) 1982
(iii) 1983
(iv) 1984

X/24/CSc/60 [ Contd.

( 3 )

(d) Which attribute of <A> tag is used to name a portion
of a same document or another document?
(i) HREF
(ii) SRC
(iii) ALT
(iv) NAME

(e) Which of the following components contains
declarations that are needed by various identifiers
and operators in the source code of C++ program?
(i) Main function
(ii) Declaration section
(iii) Header file
(iv) Executable function

(f) _____ is used to terminate the program. It has no
return value.
(i) EXIT()
(ii) Break
(iii) Continue
(iv) Skip

(g) _____ software is used to transfer data based on XML
structured documents.
(i) Java Bean
(ii) J2EE
(iii) JSP
(iv) JVM

X/24/CSc/60 [ P.T.O.

( 4 )

(h) The number of characters that can be stored by
‘char’ data type in Java is in the range
(i) 0 to 256
(ii) –128 to 127
(iii) 0 to 65535
(iv) 0 to 32767

(i) The malicious program, that deletes or rewrites the boot
sector files is called
(i) macro virus
(ii) Trojan virus
(iii) direct action virus
(iv) boot sector virus

(j) Which of the following softwares is designed to
destroy the computer software and comprises of
viruses, worms, spyware and Trojans?
(i) Spyware
(ii) Adware
(iii) Malware
(iv) Scareware

( Short Answer-type Questions )

2. Answer any three questions in 2 –3 sentences each : 2×3=6

(a) What is network operating system?

(b) What is the use of back-up utility?

(c) Differentiate between encryption and decryption.

X/24/CSc/60 [ Contd.

( 5 )

(d) Convert (11011)2 into its decimal equivalent.

(e) What is a logic gate? List the different types of
secondary gates.

3. Answer any three questions in 2 –3 sentences each : 2×3=6

(a) Explain the functions of a modem.

(b) Define HTTP and Hypertext.

(c) Differentiate between container element and empty
element in HTML.

(d) List the attributes of <Img> tag.

(e) Name the tag and attribute for the following :
(i) To display the text slightly above the baseline of
the text and in a smaller font size
(ii) To strike a line through the middle of the text

4. Answer any two questions in 2–3 sentences each : 2×2=4

(a) Evaluate the following expressions and display the
output :
int a, b=5, c= 6, d=16;

(i) a=((b>c)||(b>d));
cout <<a;
(ii) b – = c + d;
cout < < b;

(b) Differentiate between abstraction and encapsulation.

(c) Write any four escape sequences and their purposes.

(d) What is a ternary operator? Give an example.

X/24/CSc/60 [ P.T.O.

( 6 )

5. Answer any two questions in 2 –3 sentences each : 2×2=4

(a) What is a Java Servlet?

(b) Define IDE.

(c) Which loop statement is called an entry controlled
loop and why?

(d) Write the steps to evaluate the following expression :
x= y/4+(3– z  3) ;

SECTION—B
( Maximum Marks : 50 )
( Descriptive-type Questions )

[ Computer Fundamentals ]

6. Either
(a) Explain any four general purpose application
softwares. 1½×4=6
Or

(b) Write the commands in operating systems to
perform the following operations : 1½×4=6

(i) Display all the files in D: drive starting with “A”
having extension .CPP.
(in DOS)

(ii) Delete all the files with extension .JPG from a
directory called TEMP.
(in DOS)

X/24/CSc/60 [ Contd.

( 7 )

(iii) Create a directory called ‘school’ in the current
directory.
(in Linux)

(iv) Move the file ‘computer.txt’ to the directory
‘mydir’.
(in Linux)

7. Either

(a) Add the following decimal numbers after converting
them into their equivalent binary numbers. Also
write the ASCII equivalent character of the result
obtained : 6
(18)10 , (45)10 , (35)10

Or

(b) What are truth tables? Define NAND and NOR
gates. Write their truth tables using two inputs.
2+2+2=6

[ Internet Basics ]

8. Either

(a) What is Internet? Explain in brief any four
limitations of using the Internet. 1+4=5

Or

(b) Write any five characteristics of HTML. 5

X/24/CSc/60 [ P.T.O.

( 8 )

9. Either
(a) Debug the following HTML codes which are written
in bold letters : 1×5=5
(i) <Body bgcolor = “C:\users\Pictures\lotus.jpg”>
(ii) <HR size = “60%” width = “5”>
(iii) <UL Type = “1”>
(iv) <A src = “http://www.myschools.html”> About
school </A>
(v) <Frame> src = “Anchor.html” </Frame>
Or
(b) Write an HTML code to display the following nested
list : 5
Software
1. System software
 Operating system
 Language translator
 Utility software
2. Application software
 General purpose application software
 Specific purpose application software

[ Object-oriented Programming I—C++ ]

10. Either
(a) Write a program in C++ to enter an alphabet and
check whether it is uppercase or lowercase alphabet. 6
Or
(b) Write a program in C++ to swap values of two integer
numbers without using the third variable. 6

X/24/CSc/60 [ Contd.

( 9 )

11. Either
(a) Write the output generated by the following
program in C++ : 6
#include<iostream.h>
using namespace std;
int main()
{
int i, j;
for (i =1; i<=4; i++)
{
for (j=1; j<= i; j++)
{
cout<<j;
}
cout<<“\n”;
}
return 0;
}
Or
(b) Debug the following C++ program to print numbers
from 1 to any integer number given by the user : 6
#include<iostream.h>
using namespace;
int main()
{
fnum=1; lnum;
cout<<“Enter the ending number”;
cin>>lnum
for (fnum<=lnum)
{
cout<<lnum<<“,”;
fnum_ _;
}
return 0;
}

X/24/CSc/60 [ P.T.O.

( 10 )

[ Object-oriented Programming II—Java ]

12. Either
(a) Write a program in Java to display the product of the
digits of any integer number given by the user.
[Example : if input = 1234, then output = 1  2  3  4
= 24] 5

Or

(b) Write a program in Java to print all the even
numbers from 10 to 98 by using do-while loop. 5

13. Either

(a) Write the output generated by the following
Java program : 5
public class series
{
public static void main (String[]args)
{
int i =1, t =1, sum=0;
while (i<=4)
{
sum +=t;
system.out.println (“Term=”+t);
t+=3;
i++;
}
System.out.println(“Sum of series=”+sum);
}
}

X/24/CSc/60 [ Contd.

( 11 )

Or
(b) Debug the following Java program which are in bold
letters to find whether a given year is a leap year or
not : 5
import java.util.  ;
public class leapyear
{
public static void main (String);
{
Scanner sc=new Scanner (System);
int year;
System.out.println(“Enter the year”);
year=nextInt();
if(year%4=0)
{
System.out.print (year+“is leap year”);
}
else
{
System.out.println (year + “is not leap year”);
}
}
}

[ Societal Impacts of IT—II ]
14. Either
(a) Differentiate antivirus and firewall. Explain the three
filtering mechanisms categorised based on the mode
of filtering. 1½+1½+3=6
Or
(b) Define the following terms : 2×3=6
(i) Worm
(ii) Spyware
(iii) Incremental Backup

X/24/CSc/60 [ P.T.O.

( 12 )

SECTION—C

[ For Candidates without Internal Assessment ]

( Maximum Marks : 20 )

15. Answer the following questions : 2×5=10

(a) State any two functions of an operating system.

(b) Define Website and Webpage.

(c) Differentiate between object and class.

(d) Who developed Java and when?

(e) What are variables?

16. Answer any two from the following questions : 5×2=10

(a) Convert the binary numbers into decimal numbers :
2½+2½=5
(i) (10101)2
(ii) (110110)2

(b) Explain the structure of an HTML document.

(c) Explain the three logical operators with their
symbols and purpose for each.

(d) What are the symptoms of computer virus?



X/24/CSc/60 24K—2130

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