Middleware Functions in Backend Development

Auto audio on: the next questions will be read aloud when you click Continue.

1. 1

   What is the primary purpose of middleware in a web server?

   A To handle requests and responses B To create front-end interfaces C To optimize database queries
2. 2

   In which Middleware phase does request logging typically occur?

   A Response phase B Request phase C Database phase
3. 3

   Which of the following is a common use of middleware?

   A Compiling front-end JavaScript B Rendering HTML templates C Authenticating users
4. 4

   What is the function signature of middleware in Express.js?

   A function (req, res) B function (req, res, next) C function (req, res, done)
5. 5

   Which method is used to create a custom middleware in Express.js?

   A express.custom() B express.createMiddleware() C app.use()
6. 6

   How do middleware functions improve code modularity?

   A By combining all functions into a single block B By separating concerns into different middleware C By optimizing server hardware utilization
7. 7

   Which middleware is responsible for parsing incoming request bodies?

   A Body-parser B Cookie-parser C Session-parser
8. 8

   Which of the following is NOT a middleware?

   A Error handling B CORS C JavaScript minification
9. 9

   What is the role of the 'next' function in Express middleware?

   A To pass control to the subsequent middleware B To terminate the process C To render a view
10. 10

    Which middleware can be used to handle Cross-Origin Resource Sharing (CORS) issues?

    A Request-parser B CORS C Authenticator