The core technical round focuses on fundamentals and practical coding skills. Expect questions on: Programming languages you listed (Java, C/C++, Python, etc.) Object-Oriented Programming (OOP) concepts Data structures & algorithms (arrays, sorting, basic DSA) Databases (SQL, joins, normalization) Operating systems, networking basics, and core CS subjects Your projects/resume details (explain architecture, challenges, technologies) This can include coding problems, whiteboard questions, and real-world scenario-based problem solving. Glassdoor.