React Todo App Project MCQ Todo App Practice Questions

Direction: Choose the correct option

In a typical React todo app, where would you store the list of todos?

A. In component state

B. In local storage

C. In a global store

D. All of the above possible

Direction: Choose the correct option

How do you add a new todo item in a todo app?

A. Use a ref

B. Update state with the new item

C. Use a form submit

D. Directly manipulate DOM

Direction: Choose the correct option

What is a common way to mark a todo as completed?

A. Change its text

B. Remove the todo

C. Toggle a 'completed' boolean property in the todo object

D. Use CSS class

Direction: Choose the correct option

How would you filter todos to show only completed ones?

A. Use find()

B. Use map()

C. Use filter() on the todos array

D. Use sort()

Direction: Choose the correct option

What hook might you use to persist todos to local storage?

A. useRef

B. useState

C. useEffect to sync with local storage

D. useReducer

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