Firebase MCQ Questions And Answers

Firebase MCQs : This section focuses on "Basics" of Firebase. These Multiple Choice Questions (MCQ) should be practiced to improve the Firebase skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. Firebase is a backend platform for building?

A. Web
B. Android
C. IOS
D. All of the above

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2. Which of the following is not an Firebase Advantages?

A. No need for complicated configuration.
B. The data is real-time
C. Firebase offers simple control dashboard
D. Firebase free plan is limited to 50 Connections

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3. The Firebase data is representing ________ objects.

A. SQL
B. Mongo
C. JSON
D. Javascript

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4. Firebase Year of invention?

A. 2011
B. 2012
C. 2013
D. 2014

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5. Founders of Firebase?

A. Google
B. James Tamplin
C. Donald D. Chamberlin
D. Raymond F. Boyce

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6. Which method will write or replace data on a specified path?

A. SET
B. GET
C. PUT
D. USE

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7. Which method used to update the Firebase data?

A. alter
B. put
C. set
D. update

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8. The ______________ method will create a unique id when the data is pushed.

A. pop()
B. key()
C. push()
D. unique()

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9. We can get any key from Firebase by using the ________ method.

A. key()
B. firebase.key()
C. fb.key()
D. firebase().key

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10. If we want to get access of deleted data, we can use _________ event type.

A. value
B. child_added
C. child_changed
D. child_removed

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11. To authenticate a user, we can use the ?

A. createEmailAndPassword()
B. createUser()
C. createUserWithEmailAndPassword()
D. createWithEmailAndPassword()

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12. When we want to detach all callbacks, we can use : playersRef.off();

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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13. We can logout the user with the __________ method.

A. Exit()
B. signOut()
C. POP()
D. POPOUT()

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14. which of the following are correct filtering method in Firebase?

A. equalTo() method
B. endAt() method
C. startAt() method
D. All of the above

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15. Which of the following is best practices for firebase?

A. Avoid Nesting Data
B. Denormalize Data
C. Both A and B
D. None of the above

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16. What is the full form of FCM in firebase?

A. Firebase Cloud Merge
B. Firebase Cloud Messaging
C. Flexible Cloud Messaging
D. None of the above

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17. limitToFirst method returns the specified number of items beginning from the first one.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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18. How many types of Firebase Database Rule?

A. 2
B. 3
C. 4
D. 5

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19. Which of the following ports not used by FCM?

A. 5228
B. 5229
C. 5230
D. 5231

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20. Which API clears the saved Dynamic Link to prevent it from being accessed twice?

A. getInvitation API
B. get API
C. setInvitation API
D. set API

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