App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 216 · 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.💾 What does this code show? (Positions start at 0.)
   let friends = ["Aman", "Meera", "Zoya"];
   show(friends[1]); (a) Aman (b) Zoya (c) Meera
2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. open “Edit photo”
   3. tap the Profile tab
   4. tap the Home tab
   How many times must you tap Back to reach the main screen of this tab?
3. 3.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) labels on every icon
4. 4.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 32 px tall. How many px taller must it be?
5. 5.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Done button: 64 px tall
   Help button: 24 px tall
   Back button: 52 px tall
   Send button: 52 px tall (a) Send (b) Back (c) Done (d) Help
6. 6.🖼️ How many parts (boxes) does this wireframe have?
   [ search box ]
   [ filter buttons ]
   [ big picture ]
   [ list of items ]
7. 7.Which of these is true of a tab bar? (a) switches main sections (b) goes to the last screen (c) hides extra links (d) undoes one move
8. 8.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Start button: 64 px tall
   Help button: 44 px tall
   Send button: 72 px tall (a) Send (b) Help (c) Start
9. 9.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ menu icon ]
   [ top bar ]
   [ Add button ] (a) list of items (b) top bar (c) menu icon (d) Add button
10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Search tab
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
11. 11.🔢 In a quiz-app flow, which comes first: “see the final score” or “read a question”? (a) read a question (b) see the final score
12. 12.True or false: a wireframe has no real colours. (a) False (b) True
13. 13.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
14. 14.🔘 Our rule: buttons are at least 48 px tall. The Next button is 40 px tall. How many px taller must it be?
15. 15.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Results
    Design B: Home → Offers → Address → Cart → Search → Pay → Menu (a) Design B (b) Design A
16. 16.True or false: a wireframe is a quick sketch. (a) True (b) False
17. 17.Which of these is about UI (the look)? (a) how users feel after (b) the font size (c) how many taps it takes (d) how fast a task is done
18. 18.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
19. 19.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) fast-flashing lights
20. 20.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
21. 21.🔢 In a photo-post flow, what comes right after “take the photo”? (a) post the photo (b) open the camera screen (c) add a filter (d) write a caption
22. 22.Which of these is about UI (the look)? (a) whether users get lost (b) the button colours (c) how easy sign-up is (d) how many taps it takes
23. 23.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see the final score (b) pick an answer (c) see if it is right (d) read a question
24. 24.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
25. 25.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) better UX (c) worse UX (d) more colours
26. 26.🔢 In a food-order flow, which comes FIRST? (a) pay for the order (b) open the menu (c) track the order (d) add it to the cart
27. 27.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) text that can grow (d) tiny tap areas
28. 28.True or false: the icon shapes is about UI (the look). (a) True (b) False
29. 29.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ menu icon ]
    [ Add button ]
    [ big picture ]
    [ Save button ]
    [ top bar ]
30. 30.Which of these is true of a final design? (a) uses plain grey boxes (b) has no real colours (c) looks like the real app (d) shows where things go
31. 31.🔢 In a photo-post flow, which comes first: “add a filter” or “open the camera screen”? (a) open the camera screen (b) add a filter
32. 32.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) colour as the only clue
33. 33.True or false: whether users get lost is about UI (the look). (a) True (b) False
34. 34.True or false: buttons almost touching is good button design. (a) False (b) True
35. 35.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
36. 36.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ filter buttons ]
    [ Save button ]
    [ top bar ]
    [ tab bar ] (a) Save button (b) filter buttons (c) top bar
37. 37.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) labels on every icon
38. 38.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) shows where things go (d) shows the real fonts
39. 39.True or false: the font size is about UX (the experience). (a) False (b) True
40. 40.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) has the real colours (d) uses plain grey boxes

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