App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 479 · 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) post the photo (b) add a filter (c) take the photo (d) open the camera screen
2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Match report”
   2. tap the Settings tab
   3. open “Friend list”
   How many times must you tap Back to reach the main screen of this tab?
3. 3.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
5. 5.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 1 (d) 10 to 12
6. 6.True or false: a wireframe is a quick sketch. (a) False (b) True
7. 7.💾 pop() takes off the last item. What does this code show?
   let songs = ["Kites", "Stars", "Sunrise", "Rain"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Stars (b) Kites (c) Sunrise (d) Rain
8. 8.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 52 px tall
   Send button: 32 px tall
   Done button: 48 px tall (a) Done (b) Help (c) Send
9. 9.Which of these is true of a final design? (a) uses plain grey boxes (b) has no real colours (c) uses the final pictures (d) is a quick sketch
10. 10.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 40 px tall
    Cancel button: 72 px tall
    Next button: 48 px tall (a) Start (b) Next (c) Cancel
11. 11.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ title text ]
    [ tab bar ]
    [ list of items ]
    [ top bar ]
    [ filter buttons ]
    [ menu icon ] (a) filter buttons (b) title text (c) menu icon (d) top bar
12. 12.True or false: grey text on grey is poor button design. (a) True (b) False
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Search
    Design B: Home → Size → Results → Item → Address → Shop → Search (a) Design A (b) Design B
14. 14.Which of these is about UX (the experience)? (a) the font size (b) how easy sign-up is (c) the screen layout (d) the icon shapes
15. 15.Which of these fits saving on the phone? (a) the sound on/off setting (b) a shared to-do list (c) a class leaderboard (d) chat messages to friends
16. 16.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) text that can grow
17. 17.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) read a question (c) see the final score (d) tap “Start quiz”
18. 18.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
19. 19.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
20. 20.Which colour pair is hard to read? (a) white on black (b) black on pale grey (c) black on yellow (d) yellow on white
21. 21.Which of these fits saving in the cloud? (a) a draft you are typing (b) chat messages to friends (c) notes to read offline (d) the sound on/off setting
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
23. 23.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) more colours (c) better UX (d) worse UX
24. 24.💾 What number does this code show?
    let songs = ["Ocean", "Monsoon"];
    songs.push("Kites");
    songs.push("Rain");
    show(songs.length);
25. 25.Which of these fits saving on the phone? (a) photos on two devices (b) your last game level (c) a shared to-do list (d) chat messages to friends
26. 26.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ filter buttons ]
    [ list of items ]
    [ search box ]
    [ Add button ]
    [ title text ] (a) list of items (b) title text (c) Add button (d) search box
27. 27.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 60 px tall
    Done button: 64 px tall
    Start button: 32 px tall
    Next button: 36 px tall
28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Map”
    3. open “Help page”
    4. tap the Chat tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
29. 29.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Address → Shop → Cart → Menu
    Design B: Home → Item → Cart → Offers → Shop → Menu
31. 31.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ list of items ]
    [ filter buttons ]
    [ title text ]
    [ Save button ]
    [ top bar ] (a) top bar (b) Save button (c) title text (d) filter buttons
32. 32.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) dead end (c) shortcut (d) tab bar
33. 33.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 32 px tall
    Help button: 56 px tall
    Next button: 32 px tall
    Done button: 60 px tall
34. 34.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a menu button (c) a tab bar
35. 35.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Item → Size → Address → Cart
    Design B: Home → Menu → Size → Shop (a) Design A (b) Design B
37. 37.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
    [ Save button ]
    [ tab bar ]
    [ Add button ]
    [ big picture ]
    [ search box ] (a) Save button (b) search box (c) big picture (d) Add button
38. 38.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) good UI but poor UX (c) perfect UX (d) no UI at all
39. 39.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) uses the final pictures (d) is a quick sketch
40. 40.🔍 Which is the odd one out? (a) the theme colours (b) the icon shapes (c) the font size (d) how users feel after

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