App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 538 · 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 this wireframe (top to bottom), what is right below the list of items?
   [ menu icon ]
   [ list of items ]
   [ Add button ]
   [ tab bar ]
   [ Save button ] (a) tab bar (b) Save button (c) Add button (d) menu icon
2. 2.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) a picture goes here (c) an error (d) a closed app
3. 3.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Item → Address → Pay → Search
   Design B: Home → Item → Size → Offers (a) Design A (b) Design B
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Search → Size → Cart → Pay → Item
   Design B: Home → Address → Results
5. 5.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 14 px
   Footer: 16 px
   Menu: 13 px
   Label: 17 px
7. 7.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) track the order (c) add it to the cart (d) pay for the order
8. 8.🔢 In a photo-post flow, which comes first: “write a caption” or “take the photo”? (a) write a caption (b) take the photo
9. 9.True or false: a wireframe has no real colours. (a) True (b) False
10. 10.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
11. 11.🔘 Our rule: buttons are at least 48 px tall. The Start button is 24 px tall. How many px taller must it be?
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Video”
    3. open “Match report”
    4. open “Help page”
    5. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
13. 13.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a final design (b) a wireframe
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Address → Search → Pay
    Design B: Home → Results → Confirm → Size (a) Design B (b) Design A
15. 15.Which of these fits saving on the phone? (a) a class leaderboard (b) chat messages to friends (c) photos on two devices (d) notes to read offline
16. 16.True or false: photos on two devices fits saving on the phone. (a) False (b) True
17. 17.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 1 (c) 3 to 5 (d) 20
18. 18.💾 In most code, the first item of a list is at position ___. (a) 1 (b) 0 (c) 10 (d) 2
19. 19.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Badges”
    4. tap Back
    Which screen are you on now? (a) Badges (b) Score card (c) Search (d) Home
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Offers → Menu → Results → Pens
    Design B: Home → Menu → Pay → Cart → Pens
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Address → Item → Size → Offers → Shop
    Design B: Home → Shop → Size (a) Design A (b) Design B
23. 23.💾 What number does this code show?
    let lives = 8;
    lives = lives - 6;
    lives = lives + 2;
    show(lives);
24. 24.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) write a caption (b) add a filter
25. 25.🔢 In a photo-post flow, which comes first: “take the photo” or “post the photo”? (a) post the photo (b) take the photo
26. 26.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 32 px tall
    Start button: 36 px tall
    Back button: 32 px tall
27. 27.💾 What number does this code show?
    let stars = 8;
    stars = stars - 1;
    stars = stars + 1;
    show(stars);
28. 28.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
29. 29.True or false: a final design has no real colours. (a) True (b) False
30. 30.Which of these is true of a final design? (a) shows where things go (b) is a quick sketch (c) uses the final pictures (d) uses plain grey boxes
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 72 px tall
    Start button: 56 px tall
    Cancel button: 28 px tall
    Help button: 52 px tall (a) Cancel (b) Send (c) Start (d) Help
32. 32.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) hides extra links (c) goes to the last screen (d) undoes one move
33. 33.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ filter buttons ]
    [ menu icon ]
    [ Save button ]
    [ top bar ] (a) filter buttons (b) Save button (c) top bar
34. 34.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) labels on every icon (d) captions on videos
35. 35.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
36. 36.🔀 What is a user flow? (a) a charging cable (b) the path through screens (c) a colour theme (d) a type of font
37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap Back
    3. open “Map”
    Which screen are you on now? (a) Map (b) Chat (c) Video (d) Feed
38. 38.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
39. 39.True or false: a wireframe has the real colours. (a) True (b) False
40. 40.🔢 In a sign-up flow, what comes right after “type name and email”? (a) tap “Sign up” (b) open the app (c) see the home screen (d) make a password

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