App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 532 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.🔢 In a photo-post flow, what comes right after “write a caption”? (a) add a filter (b) post the photo (c) open the camera screen (d) take the photo
2. 2.🖼️ In this wireframe (top to bottom), what is right above the big picture?
   [ Save button ]
   [ list of items ]
   [ top bar ]
   [ tab bar ]
   [ title text ]
   [ big picture ] (a) Save button (b) list of items (c) tab bar (d) title text
3. 3.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
4. 4.🔢 In a sign-up flow, what comes right after “make a password”? (a) open the app (b) type name and email (c) enter the code sent (d) tap “Sign up”
5. 5.🔢 In a photo-post flow, which comes LAST? (a) open the camera screen (b) take the photo (c) post the photo (d) write a caption
6. 6.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
7. 7.True or false: a final design looks like the real app. (a) False (b) True
8. 8.True or false: the screen layout is about UX (the experience). (a) True (b) False
9. 9.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
10. 10.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
11. 11.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
12. 12.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
13. 13.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
14. 14.💾 What does this code show? (Positions start at 0.)
    let songs = ["Kites", "Monsoon", "Rain", "Sunrise", "Stars"];
    show(songs[4]); (a) Monsoon (b) Rain (c) Stars (d) Kites
15. 15.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
17. 17.💾 What number does this code show?
    let songs = ["Stars", "Kites"];
    songs.push("Sunrise");
    songs.push("Rain");
    show(songs.length);
18. 18.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 72 px tall
    Back button: 60 px tall
    Done button: 36 px tall
    Save button: 48 px tall (a) Back (b) Cancel (c) Done (d) Save
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 64 px tall
    Next button: 28 px tall
    Help button: 64 px tall (a) Next (b) Start (c) Help
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Footer: 22 px
    Title: 13 px
21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Map”
    3. tap the Profile tab
    Which screen are you on now? (a) Search (b) Profile (c) Map (d) Home
22. 22.True or false: the screen layout is about UI (the look). (a) True (b) False
23. 23.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
24. 24.Which of these fits saving on the phone? (a) chat messages to friends (b) a class leaderboard (c) a shared to-do list (d) a draft you are typing
25. 25.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
26. 26.Which colour pair is hard to read? (a) white on dark green (b) white on black (c) pale pink on white (d) dark blue on white
27. 27.True or false: grey text on grey is good button design. (a) True (b) False
28. 28.🔀 Why plan the user flow before building? (a) to hide the buttons (b) to skip testing (c) to add more taps (d) so each step is clear
29. 29.💾 pop() takes off the last item. What does this code show?
    let songs = ["Rain", "Stars", "Kites", "Sunrise"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Stars (b) Sunrise (c) Kites (d) Rain
30. 30.True or false: a wireframe shows the real fonts. (a) True (b) False
31. 31.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Address → Cart → Offers
    Design B: Home → Shop → Size → Menu → Pay → Confirm → Cart (a) Design B (b) Design A
32. 32.💾 What number does this code show?
    let songs = ["Stars", "Sunrise", "Ocean", "Rain"];
    songs.push("Kites");
    show(songs.length);
33. 33.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) the path through screens (d) a type of font
34. 34.Which of these is about UI (the look)? (a) how many taps it takes (b) the font size (c) how easy sign-up is (d) how fast a task is done
35. 35.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “see if it is right”? (a) see if it is right (b) tap “Start quiz”
36. 36.True or false: a wireframe uses the final pictures. (a) True (b) False
37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Me tab
    3. tap the Quiz tab
    4. tap the Me tab
    5. open “Help page”
    Which screen are you on now? (a) Lessons (b) Friend list (c) Help page (d) Quiz
38. 38.Which colour pair is hard to read? (a) white on dark green (b) yellow on white (c) white on black (d) black on pale grey
39. 39.Which of these fits saving on the phone? (a) chat messages to friends (b) photos on two devices (c) a class leaderboard (d) the sound on/off setting
40. 40.True or false: a wireframe has no real colours. (a) True (b) False

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students