App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 442 · 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.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
2. 2.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
3. 3.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
4. 4.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
5. 5.💾 What does this code show? (Positions start at 0.)
   let songs = ["Sunrise", "Rain", "Ocean", "Monsoon"];
   show(songs[1]); (a) Ocean (b) Monsoon (c) Rain (d) Sunrise
6. 6.Which of these is about UX (the experience)? (a) the screen layout (b) whether users get lost (c) the button colours (d) the theme colours
7. 7.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ big picture ]
   [ search box ]
   [ title text ]
   [ list of items ] (a) title text (b) search box (c) big picture (d) list of items
8. 8.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) more colours (c) worse UX (d) better UX
9. 9.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ big picture ]
   [ top bar ]
   [ Save button ]
   [ filter buttons ] (a) Save button (b) big picture (c) top bar (d) filter buttons
10. 10.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) labels on every icon (d) tiny tap areas
11. 11.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Confirm → Size
    Design B: Home → Size → Offers
12. 12.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Address → Search
    Design B: Home → Item → Menu → Offers → Confirm → Pens → Results (a) Design A (b) Design B
13. 13.Which of these is true of a wireframe? (a) uses the final pictures (b) has the real colours (c) looks like the real app (d) is a quick sketch
14. 14.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
15. 15.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ menu icon ]
    [ Add button ]
    [ big picture ]
    [ filter buttons ]
    [ tab bar ] (a) Add button (b) tab bar (c) big picture (d) menu icon
16. 16.🔢 In a photo-post flow, which comes first: “take the photo” or “add a filter”? (a) add a filter (b) take the photo
17. 17.Which of these is true of a final design? (a) uses plain grey boxes (b) has no real colours (c) is a quick sketch (d) uses the final pictures
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Title: 20 px
    Hint: 11 px
    Body text: 15 px
    Menu: 14 px
19. 19.Which colour pair is hard to read? (a) white on black (b) white on dark green (c) black on pale grey (d) dark blue on black
20. 20.🧭 Which part of navigation hides extra links? (a) a menu button (b) a tab bar (c) the back button
21. 21.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🔢 In a food-order flow, which comes LAST? (a) add it to the cart (b) check the cart (c) pay for the order (d) track the order
24. 24.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Offers
    Design B: Home → Pay → Address → Size (a) Design A (b) Design B
25. 25.True or false: notes to read offline fits saving in the cloud. (a) False (b) True
26. 26.🔀 Why plan the user flow before building? (a) to add more taps (b) so each step is clear (c) to skip testing (d) to hide the buttons
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Pens
    Design B: Home → Offers → Menu → Results → Item
28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Lessons tab
    3. open “Help page”
    4. open “Friend list”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
29. 29.True or false: the icon shapes is about UX (the experience). (a) True (b) False
30. 30.True or false: strong colour contrast is good button design. (a) False (b) True
31. 31.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “make a password”? (a) make a password (b) tap “Sign up”
32. 32.💾 What number does this code show?
    let songs = ["Stars", "Ocean", "Kites"];
    songs.push("Monsoon");
    show(songs.length);
33. 33.Which of these is true of a wireframe? (a) uses the final pictures (b) shows where things go (c) has the real colours (d) looks like the real app
34. 34.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 60 px tall
    Send button: 44 px tall
    Cancel button: 52 px tall
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 56 px tall
    Next button: 44 px tall
    Back button: 48 px tall
    Start button: 68 px tall (a) Start (b) Back (c) Next (d) Save
36. 36.🔢 In a sign-up flow, which comes FIRST? (a) enter the code sent (b) tap “Sign up” (c) make a password (d) open the app
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Menu → Pay → Pens → Address
    Design B: Home → Results → Menu → Search → Cart
38. 38.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Pay → Search → Menu → Cart
    Design B: Home → Results → Menu (a) Design A (b) Design B
39. 39.Which of these is about UI (the look)? (a) the theme colours (b) how users feel after (c) how fast a task is done (d) how easy sign-up is
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Body text: 26 px
    Title: 19 px
    Footer: 19 px
    Menu: 17 px (a) Body text (b) Title (c) Footer (d) Label

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