Class 12 Informatics PracticesImportant Questions for Board Exams 2025-26
14
Total Questions
14
Long Answer
0
Short Answer
Data Handling with Pandas — I
2 questionsCreate a Pandas DataFrame from a dictionary of lists and display the first 3 rows, shape, and data types.
Explain the difference between loc[] and iloc[] with an example.
Data Handling with Pandas — II
2 questionsWrite a Pandas program to merge two DataFrames on a common column 'EmpID' using inner join and display the result.
Write code to group a DataFrame by 'Department' and find the average 'Salary' for each department.
Data Visualisation using Matplotlib
2 questionsWrite a Python program to draw a bar chart showing the marks of 5 students in three subjects.
Write code to plot a pie chart showing the percentage distribution of budget across five departments.
Database Management using MySQL
2 questionsWrite SQL queries to: create a table EMPLOYEE, insert 3 records, and display employees earning more than ₹50,000.
Write an SQL query to find the department with the highest average salary using GROUP BY and HAVING.
Networking and Internet
2 questionsDistinguish between LAN, MAN, and WAN with two examples each.
Explain the concept of cloud computing. What are the three service models? Give one example of each.
Emerging Trends
2 questionsWhat is Internet of Things (IoT)? List four applications of IoT in everyday life.
What is Machine Learning? Describe supervised and unsupervised learning with one example each.
Societal Impacts of IT
2 questionsWhat is meant by digital footprint? How can you minimise your digital footprint?
What is phishing? How is it different from vishing? How can you protect yourself?
Frequently Asked Questions
Which are the most important questions in Class 12 Informatics Practices for CBSE board exam?
All 14 questions listed here are selected based on CBSE board exam frequency and marks weightage. Prioritise long-answer (5-mark) questions first — 14 questions here — as they carry the most marks. Short-answer questions (0 here) are next. Together they cover the questions most likely to appear.
Is it enough to study only important questions for CBSE Class 12 Informatics Practices?
Practising these 14 important questions gets you to 70–75% marks. For 85%+, also read chapter summaries and attempt at least one full sample paper under timed conditions. Use these important questions as your minimum baseline, not your ceiling.
How should I write answers in CBSE Class 12 Informatics Practices board exam?
For 1-mark questions: one direct sentence — no elaboration needed. For 3-mark questions: 3 clearly numbered points, each 1–2 lines. For 5-mark questions: brief intro + 4–5 numbered points with subject-specific keywords + 1-line conclusion. CBSE examiners look for keywords in marking schemes — structure your answers around them.
How many questions come from each chapter in Class 12 Informatics Practices CBSE board exam?
CBSE doesn't publish a fixed chapter-wise distribution, but chapters with more important questions listed here have historically appeared more frequently in board papers. Focus extra time on chapters with 5 or more questions — those chapters consistently carry high marks.