App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 370 · 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.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 12 px
   Label: 16 px
   Menu: 24 px
   Caption: 17 px (a) Menu (b) Hint (c) Caption (d) Label
3. 3.🔍 Which is the odd one out? (a) sudden loud sounds (b) strong colour contrast (c) text that can grow (d) labels on every icon
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Profile tab
   2. open “Score card”
   3. tap Back
   4. open “Edit photo”
   How many times must you tap Back to reach the main screen of this tab?
5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Help page”
   2. tap the Home tab
   3. open “Help page”
   How many times must you tap Back to reach the main screen of this tab?
6. 6.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
7. 7.Which of these fits saving on the phone? (a) photos on two devices (b) a class leaderboard (c) a shared to-do list (d) the sound on/off setting
8. 8.💾 What number does this code show?
   let songs = ["Rain", "Sunrise", "Ocean"];
   songs.push("Kites");
   show(songs.length);
9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. tap the Profile tab
   3. open “Help page”
   4. tap the Search tab
   Which screen are you on now? (a) Home (b) Search (c) Help page (d) Profile
10. 10.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ search box ]
    [ tab bar ]
    [ list of items ]
    [ menu icon ]
11. 11.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
12. 12.Which of these is about UI (the look)? (a) how easy sign-up is (b) how fast a task is done (c) whether users get lost (d) the font size
13. 13.💾 Which works with no internet at all? (a) a shared chat (b) a cloud backup (c) data saved on the phone (d) a cloud leaderboard
14. 14.🔍 Which is the odd one out? (a) the button colours (b) the theme colours (c) the font size (d) how fast a task is done
15. 15.🔍 Which is the odd one out? (a) how fast a task is done (b) how many taps it takes (c) how users feel after (d) the button colours
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Help page”
    3. tap Back
    Which screen are you on now? (a) Home (b) Match report (c) Help page (d) Search
17. 17.💾 What is a variable? (a) a named box for a value (b) a phone setting (c) a type of screen (d) a picture
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Body text: 23 px
    Hint: 19 px
19. 19.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
20. 20.🔢 In a photo-post flow, what comes right after “take the photo”? (a) post the photo (b) write a caption (c) open the camera screen (d) add a filter
21. 21.🧭 Why should every screen show where you are? (a) to look busy (b) to use more battery (c) to hide the menu (d) so users do not get lost
22. 22.Which of these is true of a tab bar? (a) opens a list of pages (b) switches main sections (c) goes to the last screen (d) undoes one move
23. 23.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
24. 24.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a menu button (c) a tab bar
25. 25.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ top bar ]
    [ menu icon ]
    [ filter buttons ]
    [ tab bar ] (a) top bar (b) filter buttons (c) tab bar (d) list of items
26. 26.Which of these is about UX (the experience)? (a) the icon shapes (b) the button colours (c) the font size (d) how users feel after
27. 27.🔢 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
28. 28.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
29. 29.🧭 Which part of navigation hides extra links? (a) a tab bar (b) the back button (c) a menu button
30. 30.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
31. 31.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
32. 32.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ Save button ]
    [ list of items ]
    [ big picture ]
    [ tab bar ]
    [ menu icon ]
    [ title text ] (a) big picture (b) menu icon (c) title text (d) Save button
33. 33.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
34. 34.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Confirm → Results → Shop → Item → Pens → Pay
    Design B: Home → Menu → Confirm → Pay → Cart → Search
36. 36.💾 What number does this code show?
    let points = 7;
    points = points - 3;
    points = points + 5;
    show(points);
37. 37.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ tab bar ]
    [ Add button ]
    [ menu icon ]
    [ top bar ]
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Body text: 18 px
    Caption: 27 px (a) Label (b) Caption (c) Body text
39. 39.🔘 Our rule: buttons are at least 48 px tall. The Start button is 20 px tall. How many px taller must it be?
40. 40.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 10 to 12 (c) 1 (d) 3 to 5

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