App Dev Worksheet: Permissions and Versions

App development lesson 23: Privacy, permissions and publishing · Set 120 · 40 questions

Developer's tip (Need it? Number it.): Ask only for permissions the app’s main job needs, and say why. Version = major.minor.patch. Bug fix → patch + 1; new feature → minor + 1, patch 0; big change → major + 1, others 0. Compare major, then minor, then patch as numbers: 10 is bigger than 9.

1. 1.True or false: a selfie sticker app needs the camera. (a) False (b) True
2. 2.🚀 In version 2.5.1, which number is the major version? (a) 1 (b) 251 (c) 2 (d) 5
3. 3.🚀 Which version is newer: 1.2.3 or 1.19.1? (a) 1.2.3 (b) 1.19.1
4. 4.True or false: a walking map needs your location. (a) True (b) False
5. 5.True or false: a birthday list of friends needs your location. (a) False (b) True
6. 6.🚀 Your app is at version 4.8.7. The next release adds a new feature. What is its version number? (a) 5.0.0 (b) 4.9.0 (c) 4.9.7 (d) 4.8.8
7. 7.🚀 A privacy policy tells users ___. (a) the screen size (b) what data is collected (c) the app’s colours (d) the app’s price
8. 8.🚀 A change from version 1.4.2 to 1.4.3 usually means ___. (a) a new feature (b) a big redesign (c) a bug fix (d) a new app
9. 9.True or false: a guitar tuner needs the microphone. (a) True (b) False
10. 10.🔐 Which permission does a speak-to-type notes app really need? (a) location (b) the camera (c) contacts (d) the microphone
11. 11.🔐 A torch app asks for your contacts. What should you do? (a) post them online (b) share them all (c) allow it (d) deny it
12. 12.Which of these requests asks for too much? (a) calling app → contacts (b) map app → location (c) voice notes → microphone (d) quiz app → microphone
13. 13.🚀 Your app is at version 1.1.3. The next release fixes a small bug. What is its version number? (a) 2.0.0 (b) 1.2.3 (c) 1.2.0 (d) 1.1.4
14. 14.🚀 Which version is newer: 3.8.5 or 3.8.19? (a) 3.8.19 (b) 3.8.5
15. 15.🔐 Which permission does a party-invite app for friends really need? (a) location (b) the microphone (c) the camera (d) contacts
16. 16.True or false: a bus tracker needs your location. (a) False (b) True
17. 17.🚀 Your app is at version 2.5.1. The next release is a big redesign that changes how the app works. What is its version number? (a) 3.0.0 (b) 2.6.1 (c) 2.6.0 (d) 2.5.2
18. 18.Which of these requests asks for too much? (a) map app → location (b) camera app → camera (c) voice notes → microphone (d) torch → contacts
19. 19.Which of these requests is fair? (a) calculator → location (b) torch → contacts (c) map app → location (d) quiz app → microphone
20. 20.🚀 Your app is at version 2.6.1. The next release adds a new feature. What is its version number? (a) 2.7.1 (b) 3.0.0 (c) 2.7.0 (d) 2.6.2
21. 21.🚀 Which of these versions is the OLDEST?
    1.7.3, 1.17.0, 0.28.0, 1.5.7 (a) 1.17.0 (b) 0.28.0 (c) 1.7.3 (d) 1.5.7
22. 22.🚀 Which version is newer: 3.17.0 or 3.2.3? (a) 3.17.0 (b) 3.2.3
23. 23.🔐 Is this permission request fair or too much: map app → location? (a) fair (b) too much
24. 24.🔐 Is this permission request fair or too much: voice notes → microphone? (a) too much (b) fair
25. 25.🚀 Which version is newer: 1.6.15 or 1.6.6? (a) 1.6.15 (b) 1.6.6
26. 26.Which of these requests asks for too much? (a) timer → your photos (b) map app → location (c) calling app → contacts (d) voice notes → microphone
27. 27.🔐 Which permission does a birthday list of friends really need? (a) the microphone (b) contacts (c) location (d) the camera
28. 28.🚀 Your app is at version 1.11.1. The next release adds a new feature. What is its version number? (a) 1.11.2 (b) 1.12.0 (c) 2.0.0 (d) 1.12.1
29. 29.🚀 Which of these versions is the NEWEST?
    1.11.0, 1.7.2, 0.26.4, 1.6.9 (a) 1.7.2 (b) 1.11.0 (c) 1.6.9 (d) 0.26.4
30. 30.🚀 Which version is newer: 2.7.16 or 2.7.8? (a) 2.7.16 (b) 2.7.8
31. 31.🔐 Which permission does a homework photo scanner really need? (a) contacts (b) the microphone (c) the camera (d) location
32. 32.Which of these requests is fair? (a) quiz app → microphone (b) voice notes → microphone (c) calculator → location (d) timer → your photos
33. 33.🚀 Which of these versions is the OLDEST?
    2.16.6, 2.7.2, 1.30.5, 2.6.2 (a) 2.7.2 (b) 2.16.6 (c) 2.6.2 (d) 1.30.5
34. 34.🔐 Is this permission request fair or too much: calling app → contacts? (a) fair (b) too much
35. 35.Which of these requests is fair? (a) calling app → contacts (b) quiz app → microphone (c) timer → your photos (d) calculator → location
36. 36.🚀 Your app is at version 1.5.4. The next release fixes a small bug. What is its version number? (a) 2.0.0 (b) 1.6.4 (c) 1.6.0 (d) 1.5.5
37. 37.🔐 Which permission does a weather-near-me app really need? (a) location (b) contacts (c) the microphone (d) the camera
38. 38.True or false: a walking map needs the camera. (a) False (b) True
39. 39.🚀 Your app is at version 3.9.6. The next release adds a new feature. What is its version number? (a) 3.9.7 (b) 3.10.0 (c) 3.10.6 (d) 4.0.0
40. 40.Which of these requests is fair? (a) camera app → camera (b) timer → your photos (c) torch → contacts (d) quiz app → microphone

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