App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 249 · 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 quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) pick an answer (c) see if it is right (d) see the final score
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) captions on videos (d) strong colour contrast
3. 3.🎨 UX stands for user ___. (a) express (b) experience (c) example (d) extra
4. 4.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Next button: 56 px tall
   Help button: 72 px tall
   Save button: 24 px tall
   Send button: 56 px tall (a) Next (b) Save (c) Help (d) Send
5. 5.Which of these is true of a wireframe? (a) shows the real fonts (b) shows where things go (c) has the real colours (d) uses the final pictures
6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Feed tab
   2. open “Map”
   3. tap Back
   4. open “Score card”
   Which screen are you on now? (a) Feed (b) Score card (c) Map (d) Chat
7. 7.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
8. 8.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
9. 9.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.🖼️ How many parts (boxes) does this wireframe have?
    [ top bar ]
    [ filter buttons ]
    [ big picture ]
    [ title text ]
    [ search box ]
11. 11.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) no UI at all (c) good UX but poor UI (d) good UI but poor UX
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Results → Shop → Offers → Search
    Design B: Home → Address → Offers
13. 13.🔢 In a food-order flow, which comes first: “check the cart” or “open the menu”? (a) open the menu (b) check the cart
14. 14.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
15. 15.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
16. 16.Which of these is true of a final design? (a) uses plain grey boxes (b) shows where things go (c) is a quick sketch (d) uses the final pictures
17. 17.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Match report”
    3. tap the Lessons tab
    Which screen are you on now? (a) Quiz (b) Match report (c) Lessons (d) Me
19. 19.🎨 UI stands for user ___. (a) interface (b) idea (c) internet (d) input
20. 20.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ top bar ]
    [ big picture ]
    [ tab bar ]
    [ list of items ]
    [ filter buttons ] (a) tab bar (b) list of items (c) big picture (d) filter buttons
21. 21.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
22. 22.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ search box ]
    [ top bar ]
    [ big picture ]
    [ title text ] (a) big picture (b) title text (c) search box
23. 23.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Badges”
    3. tap the Me tab
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
25. 25.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. tap the Feed tab
    4. open “Map”
    Which screen are you on now? (a) Feed (b) Map (c) Match report (d) Chat
27. 27.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
28. 28.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
29. 29.🎨 Is this about UI or UX: the screen layout? (a) UX (b) UI
30. 30.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Caption: 17 px
    Menu: 26 px
    Hint: 19 px
    Body text: 23 px (a) Hint (b) Caption (c) Menu (d) Title
32. 32.💾 What does this code show? (Positions start at 0.)
    let notes = ["Art", "Sports", "Music", "Science"];
    show(notes[3]); (a) Sports (b) Music (c) Science (d) Art
33. 33.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
34. 34.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
35. 35.🔢 In a sign-up flow, which comes FIRST? (a) see the home screen (b) type name and email (c) open the app (d) tap “Sign up”
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Cart → Pens
    Design B: Home → Pens → Results → Offers → Pay → Cart → Menu
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Body text: 27 px
    Menu: 17 px
    Hint: 22 px
    Footer: 20 px (a) Title (b) Menu (c) Body text (d) Hint
38. 38.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Size → Results → Pens → Shop
    Design B: Home → Pens → Cart → Pay
39. 39.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
40. 40.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 60 px tall
    Help button: 48 px tall
    Send button: 32 px tall

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