Download CSE Semester 3 important questions 2026 for Anna University Regulation 2021. PDFs for MA3354, CS3351, CS3352, CD3291 and CS3391. Semester 3 is where CSE starts to feel like CSE. Data structures, object-oriented programming and computer organization all show up together, and discrete mathematics sits in the middle of it.
Below are the important questions for each Semester 3 subject under Regulation 2021. Open a subject page and download the PDF.
| Details | Information |
|---|---|
| Exam Board | Anna University |
| Branch | B.E CSE |
| Regulation | 2021 |
| Year and Semester | 2nd Year 3rd Semester |
| File Format |
CSE Semester 3 Important Questions 2026 – Subject-wise
- MA3354 Discrete Mathematics Important Questions 2026 PDF Download – Click Here
- CS3351 Digital Principles and Computer Organization Important Questions 2026 PDF Download – Click Here
- CS3352 – Foundations of Data Science Important Questions 2026 PDF Download – Click Here
- CD3291 Data Structures and Algorithms Important Questions 2026 PDF Download – Click Here
- CS3391 Object Oriented Programming Important Questions 2026 PDF Download – Click Here
How to Prepare for Anna University CSE Semester 3
For Data Structures and Algorithms, write the programs and trace them with a small input yourself. In Discrete Mathematics, practise the proofs until you can write them without looking. Digital Principles gets easier once you draw the circuits and truth tables by hand. For Object Oriented Programming, type out a few programs on a computer so you see the errors, then write the same ones on paper.
Frequently asked questions
Is this for Regulation 2021 CSE only? Yes. The codes listed here are the Semester 3 CSE subjects under Regulation 2021.
Are practical subjects included? No, this page covers theory subjects only.
Where do I get the PDF? Tap a subject above and use the download button on its page.
Looking for another semester? See Semester 1, 2, 4, 5, 6 and 7 important questions.
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