Core CS Subjects COMPLETE Roadmap | OS, DBMS, Computer Networks For Placements [2025]

Complete Core CS Subjects Crash Course: https://maang.in/learn?tab=Core-CS If you’re preparing for tech interviews, there’s no escaping the core CS subjects: SQL, OOPS, Operating Systems, DBMS, and Computer Networks. In this video, I’ll walk you through how I’d personally study each of them, the right order to follow, and the exact topics you should focus on for interviews. I’ve also shared what kind of questions interviewers usually ask and how to prepare in a way that actually works. This roadmap will give you a clear structure to strengthen your fundamentals and prepare smartly for interviews of both service and product-based companies. Keep watching till the end to know the order in which I strengthened my core CS concepts, and if you find this helpful, make sure to subscribe! Check out AlgoZenith: https://maang.in/ CHAPTERS 00:00 - Intro 01:07 - Why Core Subjects Matter? 01:41 - How to prepare SQL? 02:05 - How to prepare OOPS? 02:43 - How to prepare OS? 03:02 - How to prepare DBMS? 03:22 - How to prepare Computer Networks? 03:46 - Focus areas 05:36 - Conclusion ----------------------------------------------- 😃 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 Instagram:   / vivekgupta.ai   Twitter: https://x.com/vg19988 LinkedIn:   / acraider   Codechef (5 ⭐️): https://www.codechef.com/users/acraider Codeforces (Master, max. 2269): https://codeforces.com/profile/acraider ----------------------------------------------- 🏷️ TAGS core cs for placements,operating system basics,compiler design explained,computer networks tutorial,dbms interview prep,backend fundamentals,high level system concepts,placement bootcamp video,software engineering fundamentals,interview preparation 2025,cs concepts simplified,core cs questions,computer networks,compiler design,os,cn,core cs subjects for placement,core cs subjects,software engineering,os for interviews,vivek gupta,algozenith,learn to code ----------------------------------------------- #️⃣ HASHTAGS #softwareengineer #dbms #coding