NgRx Store MCQs with answers Page - 4

Here, you will find a collection of MCQ questions on NgRx Store. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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F

Fox Root • 490 Points
Goal Maker

Q. After a Login Action is dispatched, who listens and performs the API call?

  • (A) Reducer
  • (B) Selector
  • (C) Effect
  • (D) StoreModule

F

Fox Root • 490 Points
Goal Maker

Q. After successful API response in login effect, what should happen next?

  • (A) Modify state directly
  • (B) Dispatch Success Action
  • (C) Reload page
  • (D) Call component method

F

Fox Root • 490 Points
Goal Maker

Q. Which part updates the authenticated user data in the store?

  • (A) Effect
  • (B) Reducer
  • (C) Component
  • (D) Service

F

Fox Root • 490 Points
Goal Maker

Q. How does the component receive updated user data after login?

  • (A) HTTP callback
  • (B) Selector subscription
  • (C) Direct reducer call
  • (D) Window event

F

Fox Root • 490 Points
Goal Maker

Q. If login API fails, what should the effect dispatch?

  • (A) Reducer error
  • (B) Failure Action
  • (C) Alert directly
  • (D) Reload application

F

Fox Root • 490 Points
Goal Maker

Q. Where should loading spinner state be stored?

  • (A) Component variable
  • (B) Global Store
  • (C) HTML template
  • (D) Router module

F

Fox Root • 490 Points
Goal Maker

Q. You need to fetch products when page loads automatically. What is the best approach?

  • (A) Call API inside constructor
  • (B) Dispatch LoadProducts action in ngOnInit
  • (C) Call reducer
  • (D) Use selector first

F

Fox Root • 490 Points
Goal Maker

Q. Why should reducers not contain API calls?

  • (A) Angular restriction
  • (B) Reducers must remain pure functions
  • (C) Performance issue only
  • (D) Selectors handle API

F

Fox Root • 490 Points
Goal Maker

Q. A component needs only user name from store. What is best practice?

  • (A) Get entire state
  • (B) Create selector for user name
  • (C) Use reducer directly
  • (D) Use service

F

Fox Root • 490 Points
Goal Maker

Q. Multiple components need cart data. What is correct architecture?

  • (A) Each component calls API
  • (B) Store cart data in NgRx store
  • (C) Use localStorage only
  • (D) Use global variable

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