Mobile Application Development Exam | Questions And Answers

a) Background Thread b) Main Dispatch Queue (Main Thread) ✅ c) Global Queue d) Custom Serial Queue

a) Declare in manifest only b) Request at runtime using requestPermissions() ✅ c) No need to request d) Use uses-permission-sdk only

Answer: The delegate pattern allows one object to act on behalf of or in coordination with another. For example, UITableView has a delegate property that conforms to UITableViewDelegate . The view controller implements methods like didSelectRowAt to handle row selection without subclassing UITableView . 15. Compare and contrast SQLite and Room Persistence Library for local data storage in Android. When would you use one over the other? mobile application development exam questions and answers

private fun checkAndRequestCameraPermission() if (ContextCompat.checkSelfPermission( this, Manifest.permission.CAMERA ) == PackageManager.PERMISSION_GRANTED ) // Permission already granted openCamera() else // Request permission ActivityCompat.requestPermissions( this, arrayOf(Manifest.permission.CAMERA), CAMERA_PERMISSION_CODE )

a) startApp() b) main() ✅ c) runApp() d) init() a) Background Thread b) Main Dispatch Queue (Main

| Q# | Answer | |----|--------| | 1 | B | | 2 | B | | 3 | D | | 4 | A | | 5 | C | | 6 | B | | 7 | C | | 8 | B | | 9 | B | | 10 | A |

a) UIKit / SwiftUI ✅ b) CocoaPods c) CoreData d) Alamofire Section B: Short Answer Questions (4 Questions) 11. Explain the difference between native, hybrid, and cross-platform mobile app development. mobile application development exam questions and answers

a) Model-View-Controller ✅ b) Module-View-Controller c) Model-View-Component d) Main-View-Controller