Placement Soon? Revise Everything That Matters — Fast.
The Top 10 questions in every subject are free — ranked by what companies actually ask. Go deeper with Top 25, Top 50,comparison sets and scenario-based Q&A, section by section, for every core subject and language. Stop studying everything; start revising what gets asked.
How Placement-Ready Are You?
Eight questions, exactly the pattern companies ask. Get a real readiness score — then see what it takes to close the gap before your drive.
Built around the questions companies actually ask in placement interviews
Revision Built for How Companies Actually Test You
Not another tutorial site. High-yield revision notes organized around the questions companies really ask in campus placement interviews.
Know Exactly What to Revise
Top 10 / 25 / 50 notes in every subject tell you what matters, in priority order — so you never waste hours on topics companies don't ask.
Revise a Subject in Hours, Not Weeks
Start with the Top 10 essentials in one sitting. Depth scales with the time you have — a day gets you the must-knows, a week gets you interview depth.
Practice the Exact Interview Formats
Comparison notes ('Process vs Thread?', 'TCP vs UDP?') and scenario questions mirror what interviewers actually ask — so nothing catches you off guard.
One Place, Every Subject
DBMS, Computer Networks, Operating Systems, SDLC, SQL — plus Java, Python, Go, C++, C, and Rust. The whole placement syllabus, in one place.
Start Fast. Go Deep If You Have Time.
Take the 2-minute check to see where you stand. Then let your deadline decide the depth — a day gets you the Top 10, a week gets you Top 25 and 50.
Take the 2-Minute Check
See your readiness score and the exact weak areas to fix — that's where you start.
Revise the Top 10
The essentials, in one sitting. Free in every subject — the fastest possible start.
Go Deeper: 25 → 50
As your deadline allows, work through Top 25 and Top 50 for real interview depth.
Go Topic-by-Topic
Every subject has a sidebar Section-wise Q&A track — SDLC, DBMS, CN, OS, SQL and more — one topic per page, in syllabus order.
Seal It With Comparisons & Scenarios
Lock it in with the exact formats companies ask — comparison notes and scenario questions.
See the Depth You'd Get
A real Top-50 question from our Operating Systems set. Premium unlocks this depth in every subject.
Which memory allocation strategy selects the smallest free partition that is large enough to satisfy a process request?
That's Best-Fit. It scans the entire free list and picks thesmallest hole that still fits the process. The goal: leave the tightest gap, minimizing wasted space within the chosen block.
Free blocks: 10KB, 25KB, 40KB, 60KB Request: 30KB → Best-Fit picks 40KB (smallest that fits)
The catch: it tends to leave behind tiny, unusable fragments — the 10KB sliver left after that 30KB goes into 40KB. Efficient in the moment, wasteful over time.
Top 25 and Top 50 across all 11 subjects.
Why Pay When YouTube, GfG, ChatGPT & Gemini Are Free?
Free resources and AI chat are amazing — they just can't tell you what to study this week, in what order, or which questions actually repeat. That's the gap we fill.
Curation, Not More Content
GfG gives you everything with equal weight. We rank the Top 10, 25, and 50 questions companies actually ask — so you revise what matters, not everything.
Answers vs. a Ranked List
ChatGPT & Gemini answer fast — but generically. We give you the exact Top 10/25/50 questions companies repeat, ranked in priority order — no prompt-tuning, no hallucination-checking, no wasted placement season.
Order, Not A Playlist
YouTube has a video for every topic — but no sequence. We tell you what to cover first so you're ready before your interview date, not lost in recommendations.
Research-Backed, Not AI-Guessed
Every question here is highly researched and curated from real placement drives, then ranked by how often it actually shows up — not generated on the spot. What you revise is what interviews repeat.
Time, Not Ten Open Tabs
Sifting free resources takes weeks. Here, a subject is revised in hours. ₹199.99 is cheap compared to the placement season you don't get back.
Top 10 / 25 / 50 · Curated from real placement drives · Researched & ranked, not generated
Placement Season Won't Wait.
Start free today — revise a Top 10 in an afternoon. Go premium when the essentials feel too easy.
Intro pricing of ₹199.99/year during placement season — less than ₹1 a day.
Frequently Asked Questions
What subjects are currently covered?
DBMS, Computer Networks, Operating Systems, SDLC, and SQL — plus six languages (Java, Python, Go, C++, C, Rust), DSA, quantitative aptitude & logical reasoning, system design, and interview practice. Every subject has a Top 10 → Top 25 → Top 50 revision track and a Section-wise Q&A set.
How do I access the premium content?
You can access our full premium content by subscribing through our Pricing page. We use Razorpay for secure and seamless payments.
Can I access the site on my mobile?
Absolutely! Rayyan Coding School is built with a mobile-first approach. You can learn on your phone, tablet, or laptop seamlessly.
Do you offer refunds?
Yes. If you're not satisfied, email us atrayyancodingschool@gmail.com within 7 days of purchase with your payment ID and we'll process a refund. After 7 days, purchases are final.