Question 1
Why is a backup important?
A backup is a separate copy that helps recover work if the original is lost, damaged or overwritten. It should be stored separately from the working file.
What to learn
Use digital tools safely and productively. Organise files, work with common productivity software, protect information and use online resources responsibly.
- Use clear folder and filename conventions so work can be found again.
- Save versions or backups before making major changes.
- Use strong unique passwords and keep software updated.
- Check the source and date of online information before relying on it.
Practical activity
Create a subject folder with subfolders for notes, projects and exports. Save two versions of a document using dated filenames, then demonstrate how to restore the earlier copy.
Use your school’s prescribed software version and teacher instructions. Keep personal information out of public practice files.
Solved CBSE-style questions
These questions and answers are original practice written for this guide; they are not copied from past papers.
Question 2
How can you evaluate an online source quickly?
Check who published it, the author’s expertise, its date, evidence and purpose. Compare important claims with another reliable source.
Question 3
What makes a password safer?
A long, unique password or passphrase is harder to guess. Avoid reuse and personal details; use a password manager and multi-factor authentication when available.
Revision checklist
- Can I explain the key terms without memorising a definition alone?
- Can I complete the listed practical task and describe each step?
- Can I apply the idea to a new example and explain why my answer works?
Aligned to the CBSE 2026–27 syllabus outline. Check the official subject curriculum and your school’s textbook/material for the prescribed scope.