Preparing for the CBSE Class 12 Computer Science Exam 2025-26? The CBSE Class 12 Computer Science Sample Paper 2025-26 is one of the most effective tools to help you strengthen your preparation, understand the latest exam pattern, and practice questions similar to the actual board exam.
In this article, we’ll cover everything you need to know about the Computer Science sample paper — including its marking scheme, question paper pattern, preparation tips, and download links for the PDF.
Overview of CBSE Class 12 Computer Science Exam 2025-26
The Computer Science subject in Class 12 focuses on programming, problem-solving, data management, and computational thinking — skills that are essential for future studies in computer applications, engineering, and IT.
Here’s a quick look at the exam highlights for 2025-26:
| Particulars | Details |
|---|---|
| Board | Central Board of Secondary Education (CBSE) |
| Class | 12th |
| Subject | Computer Science (Code: 083) |
| Academic Session | 2025–26 |
| Total Marks | 100 (Theory – 70, Practical – 30) |
| Exam Duration | 3 Hours |
| Official Website | cbse.gov.in |
CBSE Class 12 Computer Science Sample Paper 2025-26 – PDF Download
CBSE releases official sample papers every year on its academic portal to help students get familiar with the latest question format, weightage, and marking scheme.
📥 Download Links:
- CBSE Class 12 Computer Science Sample Paper 2025-26 – PDF
- CBSE Class 12 Computer Science Marking Scheme 2025-26 – PDF
(Note: Visit the CBSE Academic website → Sample Question Papers → Class XII → Computer Science to access the official files.)
CBSE Class 12 Computer Science Exam Pattern 2025-26
Before solving the sample paper, it’s important to understand the exam pattern and mark distribution. This helps students prioritize topics during revision.
| Type of Questions | Number of Questions | Marks per Question | Total Marks |
|---|---|---|---|
| Very Short Answer (VSA) | 5 | 1 | 5 |
| Short Answer (SA) | 7 | 2 | 14 |
| Long Answer I (LA-I) | 7 | 3 | 21 |
| Long Answer II (LA-II) | 4 | 4 | 16 |
| Total | – | – | 70 Marks |
🕒 Exam Duration: 3 hours
🎯 Practical Exam: 30 marks
CBSE Class 12 Computer Science Syllabus 2025-26 (Theory Overview)
Here’s a quick outline of the major units included in the Class 12 Computer Science syllabus (as per CBSE 2025-26 curriculum):
| Unit | Topic | Marks |
|---|---|---|
| 1 | Computational Thinking and Programming – 2 (Python) | 40 |
| 2 | Computer Networks | 10 |
| 3 | Database Management System (DBMS) | 20 |
| Total (Theory) | – | 70 Marks |
Let’s explore each unit briefly:
Unit 1: Computational Thinking and Programming – 2
- Functions, Recursion, and File Handling in Python
- Data structures: Stack and Queue (implementation using list)
- Data handling using Pandas
- Random module, CSV file operations
Unit 2: Computer Networks
- Data communication concepts
- Transmission media and network devices
- Network topologies and protocols
- IP addressing, domain name, and cybersecurity concepts
Unit 3: Database Management System (DBMS)
- Introduction to database and SQL
- Database creation, table creation, and data manipulation
- Operations like SELECT, UPDATE, DELETE, GROUP BY, etc.
- Concepts of primary key, foreign key, and relationships
CBSE Class 12 Computer Science Practical Exam 2025-26
The practical exam tests students’ hands-on programming and project skills.
| Component | Marks |
|---|---|
| Lab Test (Python + SQL) | 12 |
| Project (Python + DBMS) | 8 |
| Viva Voce | 5 |
| File Record | 5 |
| Total | 30 Marks |
💡 Tip: Choose a project based on real-life applications like library management, student attendance, or expense tracking — projects that showcase your understanding of both Python and database integration.
How to Use the CBSE Class 12 Computer Science Sample Paper 2025-26 Effectively
Solving sample papers is not just about checking your preparation — it’s about strategic improvement. Here’s how to use them effectively:
1. Understand the Paper Pattern
Start by analyzing the types of questions, marking weightage, and difficulty level. This will help you identify important topics like Python functions, Pandas operations, and SQL queries.
2. Practice Under Exam Conditions
Set a timer for 3 hours and attempt the sample paper just like the real exam. This builds your speed, accuracy, and time management skills.
3. Analyze Your Mistakes
After completing the paper, evaluate your answers using the CBSE marking scheme. Focus on areas where you lost marks — especially conceptual errors or incorrect syntax in programming.
4. Revise Weak Areas
If you’re weak in recursion, SQL joins, or network protocols, revise those chapters using NCERT and CBSE reference books.
5. Solve Previous Year Papers
Combine the sample paper with previous years’ question papers to get a well-rounded understanding of recurring question types.
Benefits of Solving CBSE Class 12 Computer Science Sample Paper 2025-26
Here’s why every Class 12 student should practice the sample paper before the final exam:
✅ 1. Familiarity with Exam Pattern:
Helps you understand question formats and mark distribution.
✅ 2. Enhances Problem-Solving Skills:
Improves your logic and debugging skills in Python and SQL.
✅ 3. Boosts Confidence:
Practicing real exam-like papers reduces anxiety and builds exam readiness.
✅ 4. Helps in Time Management:
You’ll learn how much time to allocate for coding, theory, and SQL questions.
✅ 5. Improves Accuracy:
Regular practice minimizes syntax errors and logical mistakes in programming questions.
Important Topics to Focus for Class 12 Computer Science Exam 2025-26
Here are the high-weightage and frequently asked topics based on past trends and sample papers:
| Section | Important Topics |
|---|---|
| Python Programming | Functions, Recursion, Lists, File Handling, Pandas DataFrame Operations |
| Computer Networks | IP Addressing, Network Topologies, Protocols (HTTP, FTP, SMTP), Cybersecurity |
| SQL & DBMS | SELECT, WHERE, GROUP BY, JOIN, Primary and Foreign Keys, Aggregate Functions |
| Project Work | Python + MySQL Integration, Real-life Problem Solving Applications |
Tips to Score 90+ in CBSE Class 12 Computer Science Exam 2025-26
Follow these smart tips to maximize your marks:
-
Understand the Logic, Not Just Syntax: Don’t memorize code — understand the flow and logic behind each program.
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Write Clean Code: Use comments, indentation, and descriptive variable names in your answers.
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Revise the Syllabus Thoroughly: Give special attention to Python and SQL commands.
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Make Notes of Common Errors: Keep a record of errors you often make — like forgetting colons, indentation issues, or SQL syntax errors.
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Practice Sample & PYQs: Attempt at least 5–6 sample papers before the board exam.
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Focus on Viva Preparation: Be ready to explain your project and logic clearly in the practical exam.
Recommended Books for Class 12 Computer Science 2025-26
While NCERT is the primary textbook prescribed by CBSE, here are some reference books to strengthen your preparation:
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NCERT Computer Science Class 12 (Latest Edition)
-
Sumita Arora – Computer Science with Python (Class 12)
-
Together with Computer Science by Rachna Sagar
-
CBSE Sample Question Papers (Arihant / Oswaal)
Conclusion
The CBSE Class 12 Computer Science Sample Paper 2025-26 is an essential resource for all students aiming to score high in the board exam. It helps you understand the paper pattern, question difficulty level, and marking scheme while giving you a real-exam experience.
Make sure to download the latest sample paper, practice it regularly, and analyze your performance. Combine it with NCERT study, coding practice, and proper revision — and you’ll be well-prepared to score 90+ in your board exam.
