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
View Answer
Ans : D
Explanation: Firebase is a backend platform for building Web, Android and IOS applications. It offers real time database, different APIs, multiple authentication types and hosting platform.
2. The Firebase data is representing ________ objects.
A. SQL
B. Mongo
C. JSON
D. Javascript
View Answer
Ans : C
Explanation: The Firebase data is representing JSON objects.
3. Founders of Firebase?
A. Google
B. James Tamplin
C. Donald D. Chamberlin
D. Raymond F. Boyce
View Answer
Ans : B
Explanation: Founders: James Tamplin, Andrew Lee
4. Which method used to update the Firebase data?
A. alter
B. put
C. set
D. update
View Answer
Ans : D
Explanation: We can update the Firebase data using update command.
5. We can get any key from Firebase by using the ________ method.
A. key()
B. firebase.key()
C. fb.key()
D. firebase().key
View Answer
Ans : A
Explanation: We can get any key from Firebase by using the key() method.
6. To authenticate a user, we can use the ?
A. createEmailAndPassword()
B. createUser()
C. createUserWithEmailAndPassword()
D. createWithEmailAndPassword()
View Answer
Ans : C
Explanation: To authenticate a user, we can use the createUserWithEmailAndPassword(email, password) method.
7. We can logout the user with the __________ method.
A. Exit()
B. signOut()
C. POP()
D. POPOUT()
View Answer
Ans : B
Explanation: we can logout the user with the signOut() method.
8. 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
View Answer
Ans : C
Explanation: Both A and B is best practices for firebase.
9. 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
View Answer
Ans : A
Explanation: True, limitToFirst method returns the specified number of items beginning from the first one.
10. Which of the following ports not used by FCM?
A. 5228
B. 5229
C. 5230
D. 5231
View Answer
Ans : D
Explanation: 5231 ports not used by FCM.
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