SET- 1
Subject Code: 4271
Pre-Board Exam-2080 (2023) HISSAN JHAPA
Grade-XI - Computer Science
Full Marks: 50 | Pass Marks: 20 |
Group
"A"
1. Which one of the following is an input device?
= a) speaker b) printer c) monitor d) mouse
2. Which of the following is NOT a bus type?
= a) Address
bus b) Data bus c) Memory bus d) Control bus
3. 1's complement of 1001 is.......................
= a) 0011 b) 0110
c) 0111 d) 1010
4. A computer cannot "boot" if it does not have:
= a) Assembler b) Operating system c) Compiler d) Loader
5. Which operator is used to start for entering the formula
in Excel cell?
= a) $ b)
@ c) = d) +
6. Which looping process checks the test condition at the
end of the loop?
= a) for b) while
c) do-while d) Nested loop
7. How to insert an image in a web page using HTML tag?
= a. <img...> b. <img source...> c. <img src=....> d. <img href=.....>
8. Which image format is best used for photographs and
offers a small file size?
= a) PNG b) GIF
c) BMP d) JPEG
9. Which is not a malware?
= a) Malware b) Spyware c) Adware
d) Encryption
Group 'B'
- Differentiate
between primary memory and secondary memory.
OR,
Subtract 101010 from 111001 using 1's and 2's
complement.
- What
are the functions of the operating system? Mention them and explain any
five.
- What
is HTML? Write HTML code for the given table.
|
Student’s
Information |
||
|
Roll |
Name |
Address |
|
1 |
Ram |
Damak |
|
2 |
Shyam |
Urlabari |
|
3 |
Hari |
Birtamod |
- Differentiate
between do-while loop and while loop with examples.
- What
is a digital signature? Explain its working mechanism with a figure.
Group 'C'
- Explain
components of a computer system with a block diagram.
OR,
Write a program to input the
elements of two 3 x 3 matrices, find the sum of them, and prints the result
properly using an array.
- Draw and explain NAND, NOR, OR, and XNOR gates with a truth table, logic gates, and Venn diagram.
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