Exam Questions

Explain What is Express.js? and illustrate with a short Express program.

Hint: Aim for a definition + runnable snippet + sample output.

Write a Express program that demonstrates History of Express.js in practice.

Hint: Include input, logic, and commented output lines.

Compare Why Use Express.js? with a related concept and state when each is preferable.

Hint: Build a tiny pros/cons table; give a use-case for each side.

Debug — given a broken snippet using Features of Express.js, identify the bug and fix it.

Hint: Explain the root cause in one line, then give the corrected code.

Design question — how would Express.js Architecture scale for 1 million users?

Hint: Think about time/space complexity, caching, batching.

Explain Express.js vs Node.js and illustrate with a short Express program.

Hint: Aim for a definition + runnable snippet + sample output.

Write a Express program that demonstrates Express.js vs Fastify in practice.

Hint: Include input, logic, and commented output lines.

Compare Express.js vs NestJS with a related concept and state when each is preferable.

Hint: Build a tiny pros/cons table; give a use-case for each side.