SumitX @Sumits_X
Author of a bestselling Java book | All Books links in the pinned tweet https://t.co/NmsenbKiBW topmate.io/interviewswith… Joined June 2021-
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Each microservice owns its database. Now the business asks for a real-time dashboard requiring joins across multiple services. Your non technical manager asks you to do it in 1 sprint without breaking service isolation? What's your plan ?
Barclays to cut 5000 jobs this year .. WILL 2027 BE WORSE THAN 2026 ?
You have a Java application that performs a transaction across two different databases (DB1 and DB2). How would you ensure data consistency and reliability across both databases during the transaction?
THE COMPANY THAT BUILT KAFKA IS MOVING AWAY FROM KAFKA !!!
" Explain SOLID principles " is one of the most asked interview questions. I see candidates usually steuggling to explain Liskov's Substitution Principle. Covered it in the book to explain it perfectly :
DONT EVEN THINK ABOUT A PRESTIGE 3BHK BELOW 2.5 CR NOW !
SumitX retweeted
Cracking The Backend Interviews... topmate.io/interviewswith…
SumitX retweeted
All My Interview Preparation Books and Bundles in One Place Over the years, I’ve created multiple interview preparation books and digital products on Topmate and Gumroad. I regularly receive DMs asking for purchase links, so I decided to put everything in one place. If you’re preparing for technical interviews in Java, Backend, Frontend, MERN, React.js, or React Native, bookmark this post. You’ll find all the links below. Individual Books 1. Cracking the Java Interview With Sumit Topmate: t.co/NmsenbKiBW Gumroad: t.co/atwlvncSfC Hard Copy: t.co/4g8HokMOrg 2. Cracking the Backend Interviews Topmate: topmate.io/interviewswith… Gumroad: msumit.gumroad.com/l/fmepsw 3. Cracking the Frontend Interviews Topmate: topmate.io/interviewswith… Gumroad: msumit.gumroad.com/l/jfsmf 4. Cracking the MERN Interviews Topmate: t.co/VTBIwkV1uE Gumroad: t.co/SU2WydLBS4 5. Cracking the React.js Interviews Topmate: t.co/pblQZE0wxv Gumroad: t.co/hQ9GUQ5fkt 6. Cracking the React Native Interviews Topmate: t.co/8uz0UT155l Gumroad: t.co/dAKhnFyNeg Bundle Offers 1. All-in-One Bundle: Backend + Frontend + Java + React.js + MERN + React Native Topmate: t.co/bNb852skUN Gumroad: t.co/ml6WGZtXCJ 2. Java Interview Preparation Bundle Includes the Java Book PDF + Java Interviews in 2026 Webinar Recording. Topmate: t.co/yXPTA8d1QW 3. Java + React.js + MERN Bundle Topmate: t.co/KmXTRrEEIp Gumroad: t.co/4c2NC6XKTp 4. React.js + MERN Bundle Gumroad: t.co/4c2NC6XKTp 5. Java + MERN Bundle Topmate: t.co/LhhqW6lZUi Gumroad: t.co/D1A1LoTvUQ 6. Java + React.js Bundle Topmate: t.co/38N8glwkd2 Gumroad: t.co/WOO8XA33kn The goal is simple: help you understand the concepts that matter, prepare for the questions interviewers ask, and approach your next opportunity with more confidence. Thank you for your continued trust and support. It genuinely means a lot.
SumitX retweeted
Messages like these truly make all the effort worth it. Nothing feels better than knowing your work is helping others grow in their careers 🙏 To everyone preparing : stay consistent, keep learning, and your time will come too .
Commonly asked SQL Query Interview Question : You have a table Users with the following columns: user_id (INT) email (VARCHAR) signup_date (DATE) Write a query to find users who signed up multiple times with the same email but on different days.
As a developer , Have you ever thought : What exactly is stored inside DB index ... Is it a full row, pointer, or something else?
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