Final Milestone
Full-Stack Architecture Verification Quiz
Answer the 5 practical engineering questions below. Passing with 80% or higher generates your immutable SHA-256 certificate and publishes it to the public verification registry.
Question 1 of 5
Which method should be used in Next.js 15 App Router to securely mutate backend data and automatically revalidate cached UI without client API calls?
'use server';
export async function createTenant(formData: FormData) { ... }Question 2 of 5
Why should JWT access and refresh tokens be stored inside httpOnly cookies rather than localStorage?
Question 3 of 5
How do you verify a Razorpay webhook payload signature in NestJS to prevent forged payment events?
const expected = crypto.createHmac('sha256', secret).update(rawBody).digest('hex');Question 4 of 5
What is the advantage of using Prisma compound indexes like `@@index([userId, courseId])` in PostgreSQL?
Question 5 of 5