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CAREER TRACK PILLAR

SDE Interview Questions — Core CS & System Design

The foundational and architectural pillars required for SDE roles at product companies and tier-1 tech firms. Focuses on deep Computer Science fundamentals and robust system design.

CORE TECHNOLOGIES

9

TOTAL QUESTIONS

1413+

LEVELS COVERED

Easy · Medium · Hard

Mastery Syllabus for Software Development Engineer (SDE) Interviews

Operating Systems: Processes vs Threads, Virtual Memory, Paging, Mutex/Semaphore, CPU Scheduling
DBMS: Normalization, Transaction Isolation Levels, WAL, B+ Trees, Concurrency Control
Computer Networks: TCP 3-Way Handshake, TCP vs UDP, DNS resolution, TLS/HTTPS, HTTP/2 & HTTP/3
Low-Level Design (LLD): SOLID Principles, Design Patterns (Factory, Strategy, Observer, Decorator)
High-Level Design (HLD): Scalability, Load Balancers, Sharding, Consistent Hashing, CAP Theorem
TECHNOLOGY MODULES

Required Technical Codices

MODULE #01150 Questions

Computer Networks

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #04171 Questions

DBMS

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #06150 Questions

Docker

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #10171 Questions

Java

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #15150 Questions

Object Design · LLD

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #16150 Questions

OOPs

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #17150 Questions

Operating Systems

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #24171 Questions

SQL

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS
MODULE #25150 Questions

System Design · HLD

Easy, Medium & Hard interview questions with model answers.

EXPLORE QUESTIONS

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SDE Interview Questions (2026 Guide) — OS, DBMS, Networks, HLD, LLD | DevPrep | DevPrep