Sub. code 4271
NEB — GRADE XI
Set B
Model Question
Class 11 Computer Science Model Question Set B
The candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Pass Marks : 20
सबै प्रश्नको उत्तर दिनुहोस् । (Attempt All Questions)
This model question paper is for Class 11 Computer Science, Set B (subject code 4271), carrying full marks of 50 with a pass mark of 20, to be completed within 2 Hours. Model answers are available for questions that have one — reveal them with a free account (a few reveals) or a paid plan (unlimited).
Group A
Multiple Choice Questions
Which unit is commonly used to measure the clock speed of a modern CPU?
DPI
GHz
Mbps
PPI
What is the octal equivalent of the decimal number ?
Which operating system technique allows multiple processors to execute processes simultaneously?
Multiprogramming
Multitasking
Multiprocessing
Spooling
Which spreadsheet function calculates the arithmetic mean of a range of values?
COUNT()
MAX()
SUM()
AVERAGE()
Which language translator converts an assembly language program into machine code?
Compiler
Interpreter
Assembler
Browser
Which of the following is a content management system (CMS)?
WordPress
Calculator
Device Manager
Notepad
Which audio format is commonly associated with uncompressed digital audio?
MP3
WAV
JPEG
GIF
What is the primary purpose of encryption?
To increase screen resolution
To compress every file
To convert readable information into an encoded form
To remove duplicate data
Which of the following is a valid characteristic of a digital signature?
It increases the physical size of a file.
It helps verify the authenticity and integrity of digital data.
It automatically removes all malware.
It guarantees that a website has no errors.
Group B
Short Answer Questions
Differentiate between primary memory and secondary memory with suitable examples.
Convert into its decimal equivalent and explain the conversion process.
Differentiate between multiprogramming and multitasking operating systems.
Explain any five features of a spreadsheet package.
What is a school management information system? Explain its major uses.
Differentiate between a compiler and an interpreter.
What is intellectual property right (IPR)? Explain any four types of intellectual property protection.
Group C
Long Answer Questions
What is an algorithm? Write an algorithm and draw a flowchart to determine whether an input number is even or odd.
Write a C program to calculate the factorial of a positive integer using a loop. Explain the program.
State and verify De Morgan's laws of Boolean algebra using truth tables.
Paper Overview & Analysis
Set B
Year
Model Question
Type
50
Full Marks
20
Pass Marks
2 Hours
Duration
16
Question Items
Question Type Breakdown
Group Breakdown
Chapter Breakdown
| Information Security and Cyber Law | 3 items | 7 marks |
| Number System and Boolean Logic | 2 items | 9 marks |
| Computer Software and Operating System | 2 items | 6 marks |
| Application Package | 2 items | 6 marks |
| Programming Concepts and Logics | 2 items | 9 marks |
| Computer System | 1 item | 1 mark |
| Web Technology I | 1 item | 1 mark |
| Multimedia | 1 item | 1 mark |
Chapter breakdown covers 14 of 16 question items on this paper — the rest aren't tagged to a chapter yet.
1 question item offered alternative ("OR") chapters and isn't attributed to either, since only one could be attempted.