ExamPrep Master Test Suite
High-Concurrency Competitive CBT Simulation Engine
ExamPrep Master Test Suite
Education
Anantapur, Andhra Pradesh
High-Concurrency Competitive CBT Simulation Engine
Delivered
2 Rounds
The Challenge
Competitive coaching institute needed a Computer-Based Test (CBT) engine identical to national GATE/JEE exam interfaces that could handle 15,000 simultaneous test takers without lag.
How We Started
Designed for bulletproof reliability: even if student internet disconnected mid-exam, responses were cached locally and synced seamlessly when connection restored.
Key Requirements
What We Delivered
Official CBT-spec student testing web app
Question paper and LaTeX equation authoring suite
High-throughput exam submission receiver in Go
Detailed student analytics and weakness diagnostic dashboard
Engineering Timeline
CBT Interface Mirroring
Recreated official examination layout with color-coded question palette buttons.
High-Throughput Go Engine
Wrote high-speed submission handler in Go capable of 25,000 requests/sec.
LaTeX Mathematical Typography
Rendered complex chemical formulas and calculus equations with zero layout shift.
National Rank Simulation
Engineered Redis sorted sets calculating instantaneous percentile rankings.
Client Sign-Off & Knowledge Transfer
Completed in 2 structured revision rounds. What was handed over:
- High-availability Go backend deployment on Kubernetes
- Faculty question bank import script for Word/Excel files
- Live exam proctoring dashboard guide
- 15,000 concurrent students tested simultaneously on Sunday mock exams with 0% data loss.
- Question bank scaled to 80,000+ verified multi-choice and numerical questions.
- Instant percentile calculation rendered in less than 1 second upon exam submission.