App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 424 · 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: “sudden loud sounds” helps everyone use the app. (a) True (b) False
2. 2.True or false: how easy sign-up is is about UI (the look). (a) False (b) True
3. 3.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
4. 4.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
5. 5.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Item → Results → Confirm → Search
   Design B: Home → Item → Shop → Confirm → Pens → Menu (a) Design B (b) Design A
6. 6.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Video”
   2. tap the Home tab
   3. open “Friend list”
   4. open “Match report”
   5. tap Back
   How many times must you tap Back to reach the main screen of this tab?
7. 7.🔢 In a food-order flow, what comes right after “check the cart”? (a) pick a dish (b) open the menu (c) pay for the order (d) add it to the cart
8. 8.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Chat tab
   2. tap the Feed tab
   3. tap the Chat tab
   4. tap the Settings tab
   Which screen are you on now? (a) Settings (b) Chat (c) Feed
9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Video”
   2. open “Match report”
   3. open “Edit photo”
   How many times must you tap Back to reach the main screen of this tab?
10. 10.Which of these fits saving on the phone? (a) a class leaderboard (b) notes to read offline (c) chat messages to friends (d) a shared to-do list
11. 11.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. open “Match report”
    3. tap Back
    4. open “Score card”
    5. tap Back
    Which screen are you on now? (a) Feed (b) Match report (c) Friend list (d) Score card
13. 13.🔍 Which is the odd one out? (a) how users feel after (b) how fast a task is done (c) how many taps it takes (d) the screen layout
14. 14.🔘 Is this good or poor button design: strong colour contrast? (a) good design (b) poor design
15. 15.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
16. 16.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
17. 17.🔢 In a food-order flow, which comes first: “add it to the cart” or “pick a dish”? (a) pick a dish (b) add it to the cart
18. 18.Which of these fits saving in the cloud? (a) your last game level (b) the sound on/off setting (c) a class leaderboard (d) notes to read offline
19. 19.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 32 px tall
    Cancel button: 60 px tall
    Send button: 64 px tall
20. 20.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ search box ]
    [ tab bar ]
    [ Save button ]
    [ top bar ]
    [ Add button ]
    [ menu icon ] (a) Add button (b) Save button (c) tab bar (d) menu icon
21. 21.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) colour as the only clue (d) big touch targets
22. 22.Which of these is about UX (the experience)? (a) the font size (b) how fast a task is done (c) the icon shapes (d) the button colours
23. 23.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) add a filter (b) write a caption
24. 24.🧭 What does the back button usually do? (a) goes to the last screen (b) closes all apps (c) deletes the page (d) opens settings
25. 25.💾 What number does this code show?
    let score = 4;
    score = score - 4;
    score = score + 1;
    show(score);
26. 26.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
27. 27.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
28. 28.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to look busy (c) to use more battery (d) to hide the menu
29. 29.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button
30. 30.💾 In most code, the first item of a list is at position ___. (a) 2 (b) 1 (c) 10 (d) 0
31. 31.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
32. 32.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) no UI at all (c) good UX but poor UI (d) perfect UX
33. 33.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) text that can grow (d) fast-flashing lights
34. 34.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
35. 35.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ search box ]
    [ big picture ]
    [ Save button ]
    [ top bar ] (a) Save button (b) search box (c) top bar (d) big picture
36. 36.🔘 Our rule: buttons are at least 48 px tall. The Help button is 24 px tall. How many px taller must it be?
37. 37.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ search box ]
    [ Save button ]
    [ filter buttons ]
    [ menu icon ] (a) search box (b) filter buttons (c) menu icon (d) Save button
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Body text: 20 px
    Footer: 14 px
    Caption: 18 px
    Hint: 17 px (a) Footer (b) Caption (c) Label (d) Body text
39. 39.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Pens
    Design B: Home → Results → Menu → Offers → Cart (a) Design B (b) Design A
40. 40.🔘 Our rule: buttons are at least 48 px tall. The Start button is 28 px tall. How many px taller must it be?

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