Question 1

What is the primary language for iOS development?

Accepted Answer

This is an MCQ screening question. The options are A) Java, B) Kotlin, C) Swift, D) Python. The correct answer is C. The suggested knockout rule is: 'Wrong = Knockout for iOS roles'.

Question 2

What is the primary language for Android development?

Accepted Answer

This is an MCQ screening question. The options are A) Swift, B) Kotlin, C) Ruby, D) PHP. The correct answer is B. The suggested knockout rule is: 'Wrong = Knockout for Android roles'.

Question 3

What is React Native?

Accepted Answer

This is an MCQ screening question. The options are A) A backend framework, B) A cross-platform mobile framework using JavaScript, C) An iOS-only framework, D) A database tool. The correct answer is B. The suggested knockout rule is: 'Wrong = Knockout for RN roles'.

Question 4

What is Flutter?

Accepted Answer

This is an MCQ screening question. The options are A) A Python framework, B) Google's cross-platform mobile framework using Dart, C) An Android-only tool, D) A backend framework. The correct answer is B. The suggested knockout rule is: 'Wrong = Knockout for Flutter roles'.

Question 5

What is the App Store Connect used for?

Accepted Answer

This is an MCQ screening question. The options are A) Writing iOS code, B) Managing and submitting iOS apps to Apple's App Store, C) Testing mobile apps, D) Managing push notifications. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 6

What is a native app?

Accepted Answer

This is an MCQ screening question. The options are A) An app built with web tech, B) An app built specifically for one platform using its native language, C) A cross-platform app, D) An app with no backend. The correct answer is B. The suggested knockout rule is: 'Wrong = Knockout'.

Question 7

What is the purpose of push notifications in mobile apps?

Accepted Answer

This is an MCQ screening question. The options are A) Storing user data, B) Sending real-time alerts and messages to users, C) Running background tasks, D) Managing app updates. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 8

What is SQLite used for in mobile apps?

Accepted Answer

This is an MCQ screening question. The options are A) Styling the UI, B) Local on-device data storage, C) Making API calls, D) Handling push notifications. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 9

What is the purpose of an API in a mobile app?

Accepted Answer

This is an MCQ screening question. The options are A) Styling the UI, B) Enabling communication between the app and the backend server, C) Storing data locally, D) Managing push notifications. The correct answer is B. The suggested knockout rule is: 'Wrong = Hard Knockout'.

Question 10

What is the difference between foreground and background app states?

Accepted Answer

This is an MCQ screening question. The options are A) No difference, B) Foreground is active on screen; background runs processes without UI, C) Background is faster, D) Foreground uses less battery. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 11

What is deep linking in mobile apps?

Accepted Answer

This is an MCQ screening question. The options are A) A type of database, B) A URL that opens a specific page or feature inside an app, C) A background process, D) A push notification type. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 12

What is the purpose of a mobile SDK?

Accepted Answer

This is an MCQ screening question. The options are A) A database tool, B) A set of tools and libraries for building mobile apps on a platform, C) A CI/CD tool, D) A testing framework. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 13

What does APK stand for?

Accepted Answer

This is an MCQ screening question. The options are A) Apple Package Kit, B) Android Package Kit, C) Application Protocol Key, D) None of the above. The correct answer is B. The suggested knockout rule is: 'Wrong = Basic Android gap'.

Question 14

What is Xcode used for?

Accepted Answer

This is an MCQ screening question. The options are A) Android development, B) Developing and testing iOS and macOS applications, C) Managing app databases, D) Writing server code. The correct answer is B. The suggested knockout rule is: 'Wrong = Knockout for iOS roles'.

Question 15

What is the purpose of Firebase in mobile development?

Accepted Answer

This is an MCQ screening question. The options are A) Writing UI code, B) Providing backend services like auth, database, and analytics, C) Managing app deployments, D) Testing mobile apps. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 16

What is an in-app purchase?

Accepted Answer

This is an MCQ screening question. The options are A) A free feature, B) Buying digital content or features from within the app, C) A subscription plan, D) A push notification. The correct answer is B. The suggested knockout rule is: 'Wrong = Knockout for monetized apps'.

Question 17

What is the purpose of mobile app testing on real devices?

Accepted Answer

This is an MCQ screening question. The options are A) To save time, B) To detect hardware-specific issues that emulators may miss, C) To reduce costs, D) To write faster code. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 18

What is state management in mobile apps?

Accepted Answer

This is an MCQ screening question. The options are A) Managing app updates, B) Handling and sharing data across different screens in the app, C) Managing push notifications, D) Writing database queries. The correct answer is B. The suggested knockout rule is: 'Wrong = Knockout'.

Question 19

What is the Google Play Console used for?

Accepted Answer

This is an MCQ screening question. The options are A) Writing Android code, B) Managing, publishing, and monitoring Android apps on Google Play, C) Testing apps, D) Managing APIs. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag'.

Question 20

What is offline-first development in mobile?

Accepted Answer

This is an MCQ screening question. The options are A) No internet needed ever, B) Designing the app to function without internet and sync when connected, C) A testing approach, D) A deployment method. The correct answer is B. The suggested knockout rule is: 'Wrong = Red flag for offline apps'.

MCQ Screening Questions for a Mobile App Developer

20 Knockout Questions for Mobile App Developers

Automate Your Mobile Developer Screening

#	Question	A	B	C	D	Answer	Knockout Rule
1	What is the primary language for iOS development?	Java	Kotlin	Swift	Python	C	Wrong = Knockout for iOS roles
2	What is the primary language for Android development?	Swift	Kotlin	Ruby	PHP	B	Wrong = Knockout for Android roles
3	What is React Native?	A backend framework	A cross-platform mobile framework using JavaScript	An iOS-only framework	A database tool	B	Wrong = Knockout for RN roles
4	What is Flutter?	A Python framework	Google's cross-platform mobile framework using Dart	An Android-only tool	A backend framework	B	Wrong = Knockout for Flutter roles
5	What is the App Store Connect used for?	Writing iOS code	Managing and submitting iOS apps to Apple's App Store	Testing mobile apps	Managing push notifications	B	Wrong = Red flag
6	What is a native app?	An app built with web tech	An app built specifically for one platform using its native language	A cross-platform app	An app with no backend	B	Wrong = Knockout
7	What is the purpose of push notifications in mobile apps?	Storing user data	Sending real-time alerts and messages to users	Running background tasks	Managing app updates	B	Wrong = Red flag
8	What is SQLite used for in mobile apps?	Styling the UI	Local on-device data storage	Making API calls	Handling push notifications	B	Wrong = Red flag
9	What is the purpose of an API in a mobile app?	Styling the UI	Enabling communication between the app and the backend server	Storing data locally	Managing push notifications	B	Wrong = Hard Knockout
10	What is the difference between foreground and background app states?	No difference	Foreground is active on screen; background runs processes without UI	Background is faster	Foreground uses less battery	B	Wrong = Red flag
11	What is deep linking in mobile apps?	A type of database	A URL that opens a specific page or feature inside an app	A background process	A push notification type	B	Wrong = Red flag
12	What is the purpose of a mobile SDK?	A database tool	A set of tools and libraries for building mobile apps on a platform	A CI/CD tool	A testing framework	B	Wrong = Red flag
13	What does APK stand for?	Apple Package Kit	Android Package Kit	Application Protocol Key	None of the above	B	Wrong = Basic Android gap
14	What is Xcode used for?	Android development	Developing and testing iOS and macOS applications	Managing app databases	Writing server code	B	Wrong = Knockout for iOS roles
15	What is the purpose of Firebase in mobile development?	Writing UI code	Providing backend services like auth, database, and analytics	Managing app deployments	Testing mobile apps	B	Wrong = Red flag
16	What is an in-app purchase?	A free feature	Buying digital content or features from within the app	A subscription plan	A push notification	B	Wrong = Knockout for monetized apps
17	What is the purpose of mobile app testing on real devices?	To save time	To detect hardware-specific issues that emulators may miss	To reduce costs	To write faster code	B	Wrong = Red flag
18	What is state management in mobile apps?	Managing app updates	Handling and sharing data across different screens in the app	Managing push notifications	Writing database queries	B	Wrong = Knockout
19	What is the Google Play Console used for?	Writing Android code	Managing, publishing, and monitoring Android apps on Google Play	Testing apps	Managing APIs	B	Wrong = Red flag
20	What is offline-first development in mobile?	No internet needed ever	Designing the app to function without internet and sync when connected	A testing approach	A deployment method	B	Wrong = Red flag for offline apps