BrowserStack Log Reading Question Solved (2025) | Full Stack Interview Prep | Placement Series 5

In this livestream, I’ve solved a real log reading question asked by BrowserStack during their interview for a full-stack developer role. This is one of the most repeated questions in their 2025 interviews. I’ve also shared 3 important OA questions you must practice. We discussed important backend and system design concepts like short polling, long polling, server-sent events, broadcaster pattern, efficient tail reading, and more. These are real-world skills you need for both interviews and high-impact engineering roles. Whether you’re a college student, fresher, or professional preparing for SDE1 or SDE2 roles, this series will help you build confidence and crack top company interviews. This is Part 5 of the Placement Series, where we solve real-world questions from online assessments, interviews, LLD, and HLD rounds conducted by top companies. Perfect for internship and placement preparation. Submit your own problems using the link above, and I’ll try to pick them in future sessions. ----------------------------------------------- 📌 Timestamps 📌 00:00:00 - Intro 00:03:20 - Today’s Agenda 00:06:20 - Understanding the problem 00:13:42 - Restrictions to consider 00:15:57 - Solution Idea 1 00:27:52 - Solution Idea 2 00:28:43 - Solution Idea 3 00:33:38 - Solution Idea 4 00:45:41 - Solution Idea 5 00:52:58 - Solution Idea 6 01:17:16 - Running the final version code 01:20:47 - Today’s learning 01:23:52 - BrowserStack OA Questions 01:27:25 - AZ’s Job Board 01:29:35 - Crash Course on LLD 01:35:36 - Conclusion ----------------------------------------------- 🔗 Resources & Links Mentioned: I’m teaching in the new AlgoZenith Premium Cohort, which started on 9th August. Join here: https://maang.in/premium Use this coupon code for a discount: AZCP012386TAI If you’re a beginner, here are some free resources to help you get started: ✅ Free C++ course with certificate (taught by me): https://bit.ly/3I52EAb ✅ More free beginner-friendly courses: https://bit.ly/3SKoCNO Want to connect or explore more resources? All my links are here: https://linktr.ee/vivek_gupta 🎙️ New to streaming or want to level up your setup? Check out StreamYard and get ₹740 off on signup: https://streamyard.com/pal/d/4585746138267648 Core CS Resources: https://algozenith.medium.com/internship-and-placement-resources-712eba3a5dee AZ Premium Bootcamp Access: https://maang.in/premium Free Language Course (with Certificate): https://maang.in/courses/AZ101-Master-C-For-Data-Structures-and-Algorithms-67 More Free Courses for Beginners: https://maang.in/learn?tab=Core-CS DSA + Dev + System Design Training: https://maang.in/premium ----------------------------------------------- 😃 ABOUT ME I’m Vivek, an engineer, Ex-Googler, ICPC World Finalist turned educator, and founder of AlgoZenith. I’ve taught Data Structures, Algorithms, and Competitive Programming to over 3000+ students and worked with 10+ engineering colleges to bridge the gap between college learning and real-world tech careers. Through AlgoZenith, I help students crack top product-based companies and become industry-ready. On this channel, you’ll find videos on coding strategies, roadmaps, interview prep, problem-solving techniques, and everything you need to level up your software career. If that’s your thing, do subscribe and hit the bell icon so you don’t miss a thing 🙂 ----------------------------------------------- 📲 SOCIALS Want to connect or explore more resources? Check out all my links here: https://linktr.ee/vivek_gupta Instagram: https://www.instagram.com/vivekgupta.ai/ Twitter: https://x.com/vg19988 LinkedIn: https://www.linkedin.com/in/acraider/ Codechef (5 ⭐️): https://www.codechef.com/users/acraider Codeforces (Master, max. 2269): https://codeforces.com/profile/acraider ----------------------------------------------- 🏷️ TAGS browserstack interview question, log reading system design, server log design, system design patterns, full stack developer interview, browserstack coding round, backend interview prep, server sent events, short polling, long polling, placement series 2025, algozenith, vivek gupta, maang preparation, interview live session, dev job interview prep, real interview questions, coding for placements, software engineering interview ----------------------------------------------- #️⃣ HASHTAGS #placement #internship #interview