CBSE Class 12 Computer Science Sample Paper 2026 | Important Questions & Exam Guide
Table of Contents
CBSE Class 12 Computer Science Sample Paper 2026 – Important Questions & Exam Guide
Introduction
Computer Science is one of the most scoring subjects in CBSE Class 12 Science stream. Many students score 90+ marks by practicing sample papers and understanding Python programming and database concepts.
This article provides CBSE Class 12 Computer Science sample paper pattern, important questions, high-weightage units, and revision tips to help students pass easily in 2026 boards.
High-Weightage & Easy-to-Score Units (Fast Recap)
| Category | Units (Class 12 Computer Science) |
|---|---|
| High Weightage Units | Python Programming, Data Structures, SQL & Database Management |
| Very Easy to Score | Boolean Logic, Networking Basics, Cyber Safety |
| Moderate Difficulty | File Handling, Stack & Queue Programs |
Python programming and SQL together carry the highest marks, so students must prepare these units first.
CBSE Class 12 Computer Science Sample Paper Pattern 2026
| Section | Question Type | Marks |
|---|---|---|
| Section A | MCQs | 20 Marks |
| Section B | Short Answer | 20 Marks |
| Section C | Programming & Long Answer | 30 Marks |
| Section D | Case-Based Questions | 10 Marks |
| Total | 80 Marks |
Important Computer Science Sample Paper Questions (2026)
Section A – MCQs (Very Important)
-
What is a variable in Python?
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Define algorithm and flowchart.
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What is SQL?
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Full form of DBMS and RDBMS.
Section B – Short Answer Questions
-
Explain types of data structures.
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Write syntax of SELECT query.
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What is Boolean algebra?
-
Explain cyber security and threats.
Section C – Programming & Long Answer Questions (High Weightage)
| Topic | Expected Question |
|---|---|
| Python Programming | Write programs using loops and functions |
| Data Structures | Stack and Queue implementation |
| SQL Queries | Create, Insert, Update, Delete queries |
| File Handling | Read and write files in Python |
| Data Visualization | Plot graphs using Python |
Section D – Case Study Questions
-
Database management in school system
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Cyber security issues in organizations
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Real-life Python applications
One-Day Computer Science Revision Plan
| Time | Topic |
|---|---|
| Morning | Python basics & loops |
| Afternoon | SQL queries & DBMS |
| Evening | Data Structures & File Handling |
| Night | MCQs, networking & cyber safety |
How to Score High Marks in CBSE Computer Science
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Practice Python programs daily
-
Learn SQL commands with examples
-
Revise theory questions from NCERT
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Practice case-based questions
-
Write clean and properly indented code
Common Mistakes Students Make
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Ignoring Python programming
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Forgetting SQL syntax
-
Not practicing output-based questions
-
Skipping theory chapters
Avoid these mistakes to score easily.
Conclusion
CBSE Class 12 Computer Science sample papers help students understand exam patterns and improve programming skills. Focus on Python and SQL to secure high marks in 2026 boards.
Click Here to Know More about CBSE Class 12 Computer Science Most Important Questions 2026 Details: https://dekhocampus.com/news/cbse-class-12-computer-science-most-important-questions-2026
FAQs (Frequently Asked Questions)
Yes. Computer Science is considered one of the easiest scoring subjects if Python and SQL are prepared well.
Python programming, Data Structures, and Database Management Systems are high-weightage. Boolean logic and networking are easy scoring topics.
Students should solve 5–8 sample papers before exams to improve coding speed and theory understanding.
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