𝐒𝐐𝐋 𝐨𝐫 𝐍𝐨𝐒𝐐𝐋?. If you’ve ever debated this in a system design interview (or while architecting a real system), you know it’s not a simple choice. NoSQL databases power some of the world's largest systems, but understanding their trade-offs in comparison to SQL is

𝐓𝐨𝐩 𝟏𝟎 𝐅𝐫𝐞𝐞 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 𝐭𝐨 𝐋𝐞𝐚𝐫𝐧 𝐒𝐜𝐚𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲. Scaling isn’t just a tech challenge—it’s a promise to your users that the product will perform when it matters. If you’re leveling up your system design game, bookmark these ten must‑reads and share

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𝐓𝐨𝐩 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐃𝐞𝐬𝐢𝐠𝐧 𝐏𝐚𝐭𝐭𝐞𝐫𝐧𝐬. ➡ 1. API Gateway Pattern: Centralizes external access to your microservices, simplifying communication and providing a single entry point for client requests. ➡ 2. Backends for Frontends Pattern (BFF): Creates

Designing software systems is a balancing act. You can’t optimize one dimension without impacting another. Here are the top 15 trade-offs you should master before your next system design interview:. → 𝗦𝘁𝗿𝗼𝗻𝗴 𝘃𝘀 𝗘𝘃𝗲𝗻𝘁𝘂𝗮𝗹 𝗖𝗼𝗻𝘀𝗶𝘀𝘁𝗲𝗻𝗰𝘆:

𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞. Microservices architecture breaks down applications into smaller, independent services. Here's a rundown of the 𝟏𝟎 𝐤𝐞𝐲 𝐜𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 in this architecture:. 1. 𝐂𝐥𝐢𝐞𝐧𝐭.These are the

𝗡𝗼 𝗳𝗿𝗲𝗲 𝗹𝘂𝗻𝗰𝗵 𝗶𝗻 𝘀𝘆𝘀𝘁𝗲𝗺 𝗱𝗲𝘀𝗶𝗴𝗻, 𝗲𝘃𝗲𝗿𝘆 𝗱𝗲𝗰𝗶𝘀𝗶𝗼𝗻 𝗶𝘀 𝗮 𝘁𝗿𝗮𝗱𝗲-𝗼𝗳𝗳. Designing software systems is a balancing act. You can’t optimize one dimension without impacting another. Here are the top 15 trade-offs you should master before your

𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 𝗠𝗮𝘀𝘁𝗲𝗿 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲: 𝗢𝗻𝗲 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲 𝘁𝗼 𝗥𝘂𝗹𝗲 𝗧𝗵𝗲𝗺 𝗔𝗹𝗹. I've used this template to discuss many #systemdesign problems in #interviews. 𝗔𝗣𝗜 𝗚𝗮𝘁𝗲𝘄𝗮𝘆.An API Gateway (AG) is a server that acts as a single point of

𝐇𝐨𝐰 𝐭𝐨 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐝𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞?. Here are some of the top ways to improve database performance:. 1. Indexing.Create the right indexes based on query patterns to speed up data retrieval. 2. Materialized Views.Store pre-computed query results

𝟗 𝐊𝐞𝐲 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐢𝐞𝐬 𝐭𝐨 𝐁𝐨𝐨𝐬𝐭 𝐀𝐏𝐈 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞. ◾ Use Caching.Store frequently accessed data in memory so you don’t have to fetch it from the database or other slow sources repeatedly. This drastically cuts down on response time. ◾ Minimize

𝗔𝗖𝗜𝗗 𝘃𝘀. 𝗕𝗔𝗦𝗘 – Trade-Offs in S𝘆𝘀𝘁𝗲𝗺 D𝗲𝘀𝗶𝗴𝗻 I𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄. Too many candidates memorize the terms. But few truly know when to choose one over the other. In high-scale system design interviews, this trade-off reveals your architectural maturity.

𝐇𝐨𝐰 𝐭𝐨 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐝𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞?. Here are some of the top ways to improve database performance:. 1. Indexing.Create the right indexes based on query patterns to speed up data retrieval. 2. Materialized Views.Store pre-computed query results

𝗡𝗼 𝗳𝗿𝗲𝗲 𝗹𝘂𝗻𝗰𝗵 𝗶𝗻 𝘀𝘆𝘀𝘁𝗲𝗺 𝗱𝗲𝘀𝗶𝗴𝗻, 𝗲𝘃𝗲𝗿𝘆 𝗱𝗲𝗰𝗶𝘀𝗶𝗼𝗻 𝗶𝘀 𝗮 𝘁𝗿𝗮𝗱𝗲-𝗼𝗳𝗳. Architecting systems is a balancing act. You can’t optimize one dimension without impacting another. Some classic trade-offs engineers grapple with:. 🔹

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞?. Microservices architecture breaks down applications into smaller, independent services. Here's a rundown of the 𝟏𝟎 𝐤𝐞𝐲 𝐜𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 in this architecture:. 1. 𝐂𝐥𝐢𝐞𝐧𝐭.These are the end-users who

𝟖 𝐋𝐨𝐚𝐝 𝐁𝐚𝐥𝐚𝐧𝐜𝐢𝐧𝐠 𝐀𝐥𝐠𝐨𝐫𝐢𝐭𝐡𝐦𝐬 𝐘𝐨𝐮 𝐌𝐮𝐬𝐭 𝐊𝐧𝐨𝐰. 1. Round Robin. It assigns a request to the first server, then moves to the second, third, and so on, and after reaching the last server, it starts again at the first. 2. Least Connections. The Least

𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 𝗠𝗮𝘀𝘁𝗲𝗿 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲: 𝗢𝗻𝗲 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲 𝘁𝗼 𝗥𝘂𝗹𝗲 𝗧𝗵𝗲𝗺 𝗔𝗹𝗹. I've used this template to discuss many #systemdesign questions. ✨ 𝐕𝐢𝐝𝐞𝐨 𝐋𝐞𝐬𝐬𝐨𝐧: ✨ . 𝗔𝗣𝗜 𝗚𝗮𝘁𝗲𝘄𝗮𝘆.An API Gateway (AG)

This video offers a comprehensive system design template that will guide you in answering any system design interview question.

𝐇𝐨𝐰 𝐭𝐨 𝐫𝐞𝐝𝐮𝐜𝐞 𝐭𝐡𝐞 𝐥𝐚𝐭𝐞𝐧𝐜𝐲 𝐢𝐧 𝐚𝐧𝐲 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐬𝐲𝐬𝐭𝐞𝐦?. 𝟏. 𝐂𝐚𝐜𝐡𝐢𝐧𝐠.Temporarily storing frequently accessed data in memory to reduce access time. How It Helps:.Data Retrieval: Fetching data from a cache (e.g., Redis, Memcached) is

𝐇𝐨𝐰 𝘁𝗼 𝘀𝗲𝗹𝗲𝗰𝘁 𝗗𝗲𝘀𝗶𝗴𝗻 𝗣𝗮𝘁𝘁𝗲𝗿𝗻𝐬?. Choosing the correct design pattern in software engineering is critical to practical problem-solving. This post will try to simplify the process, helping you decide between patterns based on specific needs. To select a

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞?. Microservices architecture breaks down applications into smaller, independent services. Here's a rundown of the 𝟏𝟎 𝐤𝐞𝐲 𝐜𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 in this architecture:. 1. 𝐂𝐥𝐢𝐞𝐧𝐭.These are the end-users who