API Interview questions
REST APIs have become a cornerstone of modern software development, and understanding them is essential for acing any interview in this domain. Here is a carefully curated list of questions…
API Design
Designing a good API is a crucial step in building reliable, scalable, and developer-friendly software. A well-designed API acts as a contract between systems, making integration smooth and reducing the…
Java Spring Boot 1M req/sec
How I Optimized a Spring Boot Application to Handle 1M Requests/Second Scaling a Spring Boot application to handle 1 million requests per second might sound like an impossible feat, but…
System Design Questions
Download E-book : Collection of 21 Articles System Design Fundamentals - System Design Interview Roadmap. SECTION 1: FUNDAMENTALS (Articles 1-20 System Design Interviews: A Visual Roadmap The CAP Theorem Explained…
Back-of-the-envelope calculation for system design
In system design interviews and real-world architecture planning, the ability to make quick, reasonably accurate estimations—often called "back-of-the-envelope" calculations—is an invaluable skill. These calculations help you determine whether a proposed…
Fault Metrics
Fault metrics provide quantifiable data to assess and track the reliability and stability of systems. Some key fault metrics include MTTF (Mean Time To Failure), MTBF (Mean Time Between Failures), and MTTR…
Network Performance Metrics
Network performance metrics are quantitative measurements used to evaluate the health, speed, reliability, and efficiency of a network. Key metrics include bandwidth, latency, throughput, jitter, packet loss, and uptime, which help identify…
System Design Questions
-----Question 1: Design a Distributed Metrics Logging and Aggregation SystemCompany(s) asked: Google, Facebook, Amazon, eBay, Datadog, Atlassian-----Question 2: Design a Distributed Stream Processing System like KafkaCompany(s) asked: Amazon, Microsoft, Wise,…
System Design Concepts
System Design Cheatsheet System design is crucial for building scalable, robust, and efficient systems. This cheatsheet provides a quick reference to key concepts, best practices, and common patterns in system…
HLD vs LLD
High-Level Design (HLD) vs Low-Level Design (LLD) Cheatsheet When developing software systems, High-Level Design (HLD) and Low-Level Design (LLD) are two crucial stages in the design process. They serve different…