Anna University CSE Semester 4 Important Questions 2026 – Regulation 2021: CSE Semester 4 important questions 2026, Anna University Regulation 2021. PDFs for CS3452, CS3491, CS3492, CS3401, CS3451 and GE3451. Fourth semester packs in some of the subjects CSE students find hardest: Theory of Computation, Operating Systems and Algorithms. Add DBMS, AI and Machine Learning, and Environmental Sciences, and it’s a full load.
Here are the important questions for every Semester 4 subject under Regulation 2021. Each link opens a page with the PDF.
| Details | Information |
|---|---|
| Exam Board | Anna University |
| Branch | B.E CSE |
| Regulation | 2021 |
| Year and Semester | 2nd Year 4th Semester |
| File Format |
CSE Semester 4 Important Questions 2026 – Subject-wise
- CS3452 Theory of Computation Important Question 2026 PDF Download – Click Here
- CS3491 Artificial Intelligence and Machine Learning Important Question 2026 PDF Download – Click Here
- CS3492 Database Management Systems Important Question 2026 PDF Download – Click Here
- CS3401 Algorithms Important Question 2026 PDF Download – Click Here
- CS3451 Introduction to Operating Systems Important Question 2026 PDF Download – Click Here
- GE3451 Environmental Sciences and Sustainability Important Question 2026 PDF Download – Click Here
Study plan for Semester 4
Theory of Computation takes the longest to settle, so start there and draw every automaton yourself. For DBMS, write the SQL queries out in full. In Operating Systems, redo the scheduling and page replacement problems step by step, since the working is where the marks are. Leave Environmental Sciences for the last few days, because it’s mostly reading and recall.
Frequently asked questions
Which subjects does this page cover? The six theory subjects of CSE Semester 4 under Regulation 2021.
Do I need all six PDFs? If you’re writing all six papers, yes. Open each subject page for its own PDF.
Will this page be updated? We add new PDFs as they come in, so check back before your exams.
Looking for another semester? See Semester 1, 2, 3, 5, 6 and 7 important questions.
Latest Anna University Updates
If you have Study Materials, educational news, Question Banks, Notes, Model Question Papers, or other important educational resources that could benefit students, you can share them with us. The information and educational resources you provide may help many students in their learning journey.
You can send your information or educational resources to kalvinesan.com@gmail.com.
