MEAN Trivia 4

Question 1

What Angular directive is used to conditionally show or hide elements in the DOM?

Accepted Answer

*ngIf

Answer

*ngIf adds or removes an element from the DOM based on a truthy condition.

Question 2

In MongoDB, what is the maximum document size?

Accepted Answer

16 MB

Answer

MongoDB documents have a maximum size of 16 MB; use GridFS for larger files.

Question 3

What is the purpose of Express middleware's `next()` function?

Accepted Answer

Passes control to the next middleware in the stack

Answer

Calling next() passes control to the subsequent middleware function in the Express request pipeline.

Question 4

Which Angular lifecycle hook is called once after the component's view is fully initialized?

Accepted Answer

ngAfterViewInit

Answer

ngAfterViewInit is called once after Angular has fully initialized the component's view and child views.

Question 5

What does CORS stand for in the context of web development?

Accepted Answer

Cross-Origin Resource Sharing

Answer

CORS (Cross-Origin Resource Sharing) is a browser security feature that restricts cross-origin HTTP requests.

MEAN - Stack Development Practice Test