Role: Ninja, Digital, Prime
Interview questions from student's reference:
Technical Round
Core Programming & Logic
Pascal Triangle: Use nested loops; outer loop for rows, inner loop for values using binomial coefficients.
Armstrong Number: Sum of cubes (or nth powers) of digits equals the number itself.
Fibonacci Series: Iterative/recursive logic to generate sequence.
Swap without temp variable: Use arithmetic (a = a + b; b = a - b; a = a - b;) or XOR.
Prime Number Check: Loop till √n, check divisibility.
Electronics (ECE Background)
Flip-flop: Basic memory element; types include SR, JK, D, T. Differences lie in input/output behavior.
Microprocessor vs Microcontroller: Microprocessor = CPU only, needs external peripherals; Microcontroller = CPU + memory + I/O integrated.
Stability, Input/Output Skew: Timing concepts in digital circuits; skew = difference in arrival times of signals.
Linux Commands
Copy file: cp file.txt /path/to/folder/
Remove folder: rm -r foldername
Create file: touch filename.txt
Simulate code: Depends on language; e.g., gcc program.c -o program && ./program
SQL
Create Table :
CREATE TABLE Students (ID INT, Name VARCHAR(50));
Add Column :
ALTER TABLE Students ADD Age INT;
Software Engineering Concepts
Agile vs Waterfall: Agile = iterative, flexible; Waterfall = sequential, rigid.
RAG (Retrieval-Augmented Generation): Used in AI to fetch external knowledge for better answers.
Self-introduction (technical) → Highlight your strongest language (Java), projects, and certifications.
OOP Concepts:
- Abstraction: Hiding implementation, showing only essentials (interfaces, abstract classes).
- Encapsulation: Wrapping data + methods (private fields, getters/setters).
- Inheritance: Reusing code (extends keyword).
- Polymorphism: Same method, different behavior (overloading/overriding).
- Exception Handling: try-catch-finally, throw/throws.
- Error Control: Checked vs unchecked exceptions.
Examples of OOP: Banking system (inheritance), Library management (encapsulation).
Matrix Multiplication Code: Nested loops multiplying rows × columns.
Spring Boot Concepts:
- MVC: Model (data), View (UI), Controller (logic).
- Annotations: @RestController, @Autowired, @Entity.
- Response Codes: 200 OK, 404 Not Found, 500 Internal Server Error.
- JPA Queries: findById, findAll, custom queries with @Query.
Backend API Development: REST APIs, JSON responses, CRUD operations.
Git Commands:
fetch vs pull: fetch updates local repo, pull = fetch + merge.
stash: temporarily save changes.
Remote vs local repo: GitHub vs your machine.
Commit ID: unique SHA identifier.
Revert: undo commit.
New branch: git checkout -b branchname.
Merge Conflict Resolution: Manual editing, git merge --abort, rebase strategies.
LLM (Large Language Models): AI models trained on text, used for chatbots,
summarization, code generation.
Blockchain Concepts: Distributed ledger, immutability, consensus algorithms.
Hashing, Cryptography, Quantum Computing: Hashing secures data, cryptography
encrypts, quantum computing threatens classical encryption → quantum-safe algorithms.
Agile Methodology: Iterative, flexible, suitable for startups due to adaptability.
Managerial Round Focus
Internship Project: Be ready to explain flow, tech stack, challenges, and your role.
Website Monitoring Techniques: Ping tools, uptime monitoring, logging, alerts.
AWS EC2 & Docker:
o EC2: Virtual servers in cloud.
o Docker: Containerization for portability.
o Real-world: Deploying microservices.
Programming Languages (rating): Be honest (Java 8/10, SQL 7/10, Python 6/10).
JavaScript in HTML: <script> tag.
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