Order of Middleware MCQ | Express.js Middleware Order Multiple Choice Questions

Direction: Choose the correct option

In Express, what determines the order in which middleware functions are executed?

A. Random

B. The order they are defined with app.use() or app.METHOD()

C. Alphabetical order

D. The order they are required

Direction: Choose the correct option

What happens if you define a route after a middleware that does not call next()?

A. The server crashes

B. The route will still be called

C. The route will never be reached

D. An error is thrown

Direction: Choose the correct option

How do you define error-handling middleware in Express?

A. With two parameters: (err, req)

B. With four parameters: (err, req, res, next)

C. With three parameters: (req, res, next)

D. With any number of parameters

Direction: Choose the correct option

Where should error-handling middleware be placed in the code?

A. After all other middleware and routes

B. Before any other middleware

C. Anywhere

D. it doesn't matter

Direction: Choose the correct option

What does calling next(err) do?

A. Stops the server

B. Sends the error as response

C. Skips to the next error-handling middleware

D. Throws an exception

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