Computer Science

Object-Oriented Programming

Master the core concepts of OOP — classes, objects, the four pillars, SOLID principles, and how to model domains into clean, maintainable class designs.

Data Structures

Practice core data structures interview questions covering arrays, linked lists, stacks, queues, hash tables, trees, graphs, and advanced structures with their operations and Big-O complexity.

Algorithms

Step-by-step procedures for solving computational problems, studied for their correctness and their time and space efficiency.

Concurrency & Parallelism

Threads and processes, locks and deadlocks, async models, lock-free programming, and the actor model for building correct concurrent systems.

Networking

Computer networking for developers: the TCP/IP and OSI models, TCP vs UDP, DNS, HTTP/1.1–3, TLS, IP addressing, load balancing, and latency.

Operating Systems

Operating system fundamentals: processes and threads, CPU scheduling, virtual memory and paging, synchronization, deadlocks, IPC, and filesystems.