Explain Core CS and Database Concepts
Company: Ansys
Role: Software Engineer
Category: Software Engineering Fundamentals
Difficulty: medium
Interview Round: Technical Screen
The interview included a fundamentals discussion covering topics like:
- Explain common data structures and when you would choose arrays, linked lists, hash tables, heaps, and trees.
- Compare the time and space complexity of merge sort, quicksort, and binary search.
- What is multithreading, and what problems can happen when threads share state?
- What is a deadlock, what conditions cause it, and how can it be prevented?
- What does "big data" mean in practice?
- What are primary keys and foreign keys in a relational database?
Quick Answer: This question evaluates understanding of core computer science competencies—data structures and their trade-offs, algorithmic time and space complexity, concurrent programming and deadlock, big data concepts, and relational database keys.