App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 118 · 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.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Score card”
   2. tap the Feed tab
   3. tap the Settings tab
   Which screen are you on now? (a) Score card (b) Feed (c) Chat (d) Settings
2. 2.💾 What number does this code show?
   let songs = ["Monsoon", "Stars"];
   songs.push("Sunrise");
   show(songs.length);
3. 3.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
4. 4.🔢 In a photo-post flow, what comes right after “add a filter”? (a) post the photo (b) write a caption (c) open the camera screen (d) take the photo
5. 5.💾 What number does this code show?
   let coins = 7;
   coins = coins - 2;
   coins = coins + 1;
   show(coins);
6. 6.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
7. 7.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Map”
   2. tap the Search tab
   3. open “Match report”
   How many times must you tap Back to reach the main screen of this tab?
9. 9.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
10. 10.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “type name and email”? (a) type name and email (b) tap “Sign up”
11. 11.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Address
    Design B: Home → Cart → Size → Address → Search → Shop (a) Design B (b) Design A
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pay → Item → Pens → Size → Confirm
    Design B: Home → Search → Menu
13. 13.Which of these is true of a wireframe? (a) looks like the real app (b) is a quick sketch (c) uses the final pictures (d) shows the real fonts
14. 14.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
15. 15.Which of these is about UI (the look)? (a) whether users get lost (b) the icon shapes (c) how fast a task is done (d) how many taps it takes
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Title: 11 px
    Body text: 15 px
    Label: 23 px
    Hint: 19 px
17. 17.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
18. 18.💾 What number does this code show?
    let points = 7;
    points = points - 2;
    points = points + 1;
    show(points);
19. 19.Which of these fits saving on the phone? (a) chat messages to friends (b) the sound on/off setting (c) a class leaderboard (d) photos on two devices
20. 20.💾 What number does this code show?
    let songs = ["Monsoon", "Kites", "Rain"];
    songs.push("Sunrise");
    songs.push("Stars");
    show(songs.length);
21. 21.💾 What number does this code show?
    let stars = 4;
    stars = stars - 4;
    stars = stars + 4;
    show(stars);
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Pay → Menu → Results → Item
    Design B: Home → Address → Search → Menu → Results (a) Design A (b) Design B
23. 23.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) pick an answer (b) see if it is right (c) read a question (d) see the final score
24. 24.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
25. 25.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Menu → Address → Pens → Shop → Size
    Design B: Home → Pens → Menu → Offers (a) Design A (b) Design B
27. 27.🔢 In a sign-up flow, which comes LAST? (a) make a password (b) tap “Sign up” (c) see the home screen (d) open the app
28. 28.True or false: a wireframe uses the final pictures. (a) False (b) True
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Lessons tab
    3. tap the Quiz tab
    4. open “Score card”
    Which screen are you on now? (a) Lessons (b) Quiz (c) Friend list (d) Score card
30. 30.🌗 Is light grey on white easy or hard to read on a button? (a) hard to read (b) easy to read
31. 31.Which of these is true of a tab bar? (a) switches main sections (b) undoes one move (c) opens a list of pages (d) hides extra links
32. 32.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ Save button ]
    [ big picture ]
    [ tab bar ]
    [ search box ] (a) big picture (b) tab bar (c) search box
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Pay → Menu → Search → Item → Results
    Design B: Home → Address → Item → Pay → Cart
34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Chat tab
    3. tap the Feed tab
    4. tap the Chat tab
    5. open “Friend list”
    Which screen are you on now? (a) Chat (b) Settings (c) Friend list (d) Feed
35. 35.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) add a filter (b) post the photo (c) write a caption (d) take the photo
36. 36.💾 Which works with no internet at all? (a) a cloud backup (b) a shared chat (c) a cloud leaderboard (d) data saved on the phone
37. 37.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Pay
    Design B: Home → Pens → Cart → Search (a) Design A (b) Design B
38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. open “Score card”
    4. tap Back
    Which screen are you on now? (a) Video (b) Score card (c) Lessons (d) Quiz
39. 39.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
40. 40.💾 What number does this code show?
    let coins = 4;
    coins = coins - 3;
    coins = coins + 1;
    show(coins);

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