CBSE Class 11 Computer Science Unit 3 – Important Subjective Questions

The following subjective questions are based on the latest CBSE Class 11 Computer Science syllabus. These questions help students strengthen conceptual understanding and prepare effectively for school examinations and competency-based assessments.

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Question 1

What is a Digital Footprint? Differentiate between Active and Passive Digital Footprints with suitable examples.

Answer:

• Digital Footprint is the trail of information created by a person's online activities.
• Active Digital Footprint: Information shared intentionally by the user, such as social media posts, comments, emails, and online forms.
• Passive Digital Footprint: Information collected automatically, such as IP addresses, cookies, browsing history, and location data.

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Question 2

Who is a Netizen? Explain any five Netiquettes that every Internet user should follow.

Answer:

• A Netizen is a responsible Internet user who follows ethical online behaviour.
• Use polite language.
• Respect others' opinions.
• Do not spread fake news.
• Respect privacy.
• Avoid cyber bullying.

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Question 3

Explain Copyright, Patent, and Trademark with one example of each.

Answer:

IPR	Purpose	Example
Copyright	Protects original creative works	Books, music, software
Patent	Protects inventions	New machine or technology
Trademark	Protects brand identity	Company logo or brand name

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Question 4

What is Plagiarism? How can it be avoided?

Answer:

• Plagiarism is copying another person's work without giving proper credit.
• Always mention the original source.
• Use quotations where required.
• Create original content.
• Use plagiarism-checking tools before submission.

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Question 5

Explain Open Source Software. What are GPL, Apache License, and Creative Commons?

Answer:

• Open Source Software allows users to view, modify, and distribute the source code.
• GPL: Allows modification and redistribution under the same license.
• Apache License: Allows modification with fewer restrictions.
• Creative Commons: Used for sharing creative works like images, videos, and documents.

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Question 6

What is Cyber Crime? Explain any five common cyber crimes.

Answer:

• Cyber Crime is any illegal activity performed using computers or the Internet.
• Hacking
• Phishing
• Ransomware
• Eavesdropping
• Cyber Bullying

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Question 7

Differentiate between Hacking and Phishing.

Hacking	Phishing
Unauthorized access to a system.	Tricking users into sharing confidential information.
Targets computer systems.	Targets users through fake emails or websites.

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Question 8

Explain Ransomware. How can users protect themselves from it?

Answer:

• Ransomware encrypts files and demands payment for decryption.
• Install antivirus software.
• Keep software updated.
• Avoid opening suspicious email attachments.
• Maintain regular backups.

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Question 9

What is Cyber Safety? Explain any five cyber safety practices.

Answer:

• Use strong passwords.
• Enable Two-Factor Authentication.
• Avoid suspicious links.
• Install antivirus software.
• Keep software updated.

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Question 10

Differentiate between Virus, Trojan, and Adware.

Virus	Trojan	Adware
Attaches to files and spreads.	Pretends to be genuine software.	Displays unwanted advertisements.

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Question 11

Explain E-Waste. Why is proper disposal of E-Waste important?

Answer:

E-Waste (Electronic Waste) refers to discarded electrical and electronic devices that are no longer useful or functional.

Examples:

• Old computers
• Laptops
• Mobile phones
• Televisions
• Printers
• Chargers and batteries

Importance of Proper Disposal:

• Reduces environmental pollution.
• Prevents harmful chemicals from entering soil and water.
• Recovers valuable materials through recycling.
• Protects human health.
• Promotes sustainable development.

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Question 12

Explain the 5R Principle of E-Waste Management.

Answer:

R	Meaning
Refuse	Avoid purchasing unnecessary electronic devices.
Reduce	Use electronic devices wisely and avoid wastage.
Reuse	Use electronic products for a longer period or donate them.
Repair	Repair devices instead of replacing them whenever possible.
Recycle	Dispose of electronic waste through authorised recycling centres.

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Question 13

What is the Information Technology Act, 2000? Mention any five objectives of the Act.

Answer:

The Information Technology Act, 2000 is India's cyber law that provides legal recognition to electronic records and digital transactions while addressing cyber crimes.

Objectives:

• Provide legal recognition to electronic records.
• Recognise digital signatures.
• Promote e-commerce.
• Support e-governance.
• Prevent and deal with cyber crimes.

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Question 14

What is a Digital Signature? State any four advantages of Digital Signatures.

Answer:

A Digital Signature is an electronic method used to verify the authenticity and integrity of electronic documents.

Advantages:

• Authenticates the sender.
• Ensures document integrity.
• Provides secure online transactions.
• Reduces paperwork and processing time.

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Question 15

Explain the relationship between Technology and Society.

Answer:

Technology and society influence each other. Technology improves communication, education, healthcare, banking, transportation, and business, while society identifies new technological needs and shapes future innovations.

Examples:

• Online education
• Digital banking
• Telemedicine
• Online shopping
• E-Governance services

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Question 16

What is Accessibility? Explain any four accessibility features available in computers.

Answer:

Accessibility means designing digital systems and technologies so that they can be used effectively by everyone, including persons with disabilities.

Accessibility Features:

• Screen Reader
• Screen Magnifier
• Voice Typing
• Closed Captions

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Question 17

Explain any four Assistive Technologies used by persons with disabilities.

Answer:

Technology	Purpose
Screen Reader	Reads text aloud for visually impaired users.
Screen Magnifier	Enlarges text and images.
Voice Typing	Allows users to type using speech.
On-Screen Keyboard	Helps users with limited hand movement.

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Question 18

What is Universal Design? Why is it important?

Answer:

Universal Design is the practice of designing products, software, websites, and services so that they can be used by the maximum number of people without requiring major modifications.

Importance:

• Promotes inclusiveness.
• Supports accessibility.
• Improves user experience.
• Provides equal opportunities for everyone.

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Question 19

How can technology help promote Gender Equality in society?

Answer:

• Provides equal access to digital education.
• Encourages equal participation in STEM fields.
• Creates equal employment opportunities.
• Supports online skill development.
• Reduces gender discrimination through digital awareness.

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Question 20

A school plans to introduce a new digital learning platform. Suggest any five measures that should be taken to ensure the platform is safe, accessible, and beneficial for all students.

Answer:

• Use secure login and strong password policies.
• Protect students' personal information and privacy.
• Provide accessibility features such as captions and screen reader support.
• Use licensed software and follow the Information Technology Act.
• Educate students about cyber safety, digital etiquette, and responsible use of technology.

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