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App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 184 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.💾 In most code, the first item of a list is at position ___. (a) 10 (b) 2 (c) 0 (d) 1
  2. 2.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) text that can grow (d) labels on every icon
  3. 3.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a final design (b) a wireframe
  4. 4.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 28 px tall
    Start button: 56 px tall
    Done button: 60 px tall     (a) Start (b) Help (c) Done
  5. 5.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a dead end (c) a random page (d) a clear next step
  6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 60 px tall
    Help button: 48 px tall
    Cancel button: 56 px tall
    Back button: 36 px tall     (a) Cancel (b) Back (c) Help (d) Save
  7. 7.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap Back
    3. open “Help page”
    4. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
  8. 8.Which of these is about UX (the experience)? (a) the theme colours (b) the icon shapes (c) how easy sign-up is (d) the button colours
  9. 9.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Back button: 32 px tall
    Next button: 44 px tall
    Start button: 36 px tall
  10. 10.True or false: a wireframe shows where things go. (a) True (b) False
  11. 11.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) enter the code sent (c) tap “Sign up” (d) type name and email
  12. 12.True or false: the icon shapes is about UI (the look). (a) True (b) False
  13. 13.Which colour pair is easy to read? (a) light grey on white (b) red on green (c) yellow on white (d) black on yellow
  14. 14.🌗 Is red on green easy or hard to read on a button? (a) hard to read (b) easy to read
  15. 15.💾 Which can hold many values in order? (a) a button (b) a switch (c) a single number (d) a list
  16. 16.🔍 Which is the odd one out? (a) the font size (b) the button colours (c) the theme colours (d) how easy sign-up is
  17. 17.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
  18. 18.Which of these is true of a tab bar? (a) goes to the last screen (b) opens a list of pages (c) switches main sections (d) undoes one move
  19. 19.True or false: a wireframe shows the real fonts. (a) False (b) True
  20. 20.💾 Which works with no internet at all? (a) a cloud leaderboard (b) data saved on the phone (c) a cloud backup (d) a shared chat
  21. 21.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) open the menu (b) track the order (c) pick a dish (d) check the cart
  22. 22.Which colour pair is hard to read? (a) dark blue on black (b) white on black (c) black on yellow (d) white on dark green
  23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 72 px tall
    Next button: 28 px tall
    Done button: 48 px tall
    Send button: 56 px tall     (a) Save (b) Next (c) Done (d) Send
  24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Shop → Cart → Pay
    Design B: Home → Offers → Pay → Pens → Shop → Search
  25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Edit photo”
    3. open “Badges”
    4. open “Edit photo”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
  26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Badges”
    3. tap the Search tab
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
  27. 27.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
  28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Feed tab
    3. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
  29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Title: 26 px
    Hint: 11 px     (a) Title (b) Hint (c) Label
  30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Edit photo”
    3. tap the Search tab
    4. open “Help page”
    5. open “Badges”
    Which screen are you on now?     (a) Badges (b) Help page (c) Edit photo (d) Home
  31. 31.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) home screen (c) tab bar (d) shortcut
  32. 32.Which colour pair is hard to read? (a) dark blue on white (b) white on black (c) black on yellow (d) pale pink on white
  33. 33.Which of these fits saving in the cloud? (a) notes to read offline (b) your last game level (c) a shared to-do list (d) a draft you are typing
  34. 34.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ title text ]
    [ filter buttons ]
    [ top bar ]
  35. 35.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Back button: 44 px tall
    Start button: 64 px tall
    Save button: 64 px tall
  36. 36.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
  37. 37.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
  38. 38.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
  39. 39.💾 pop() takes off the last item. What does this code show?
    let notes = ["Art", "Science", "Music"];
    notes.pop();
    show(notes[notes.length - 1]);     (a) Art (b) Science (c) Music
  40. 40.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) labels on every icon (d) icons with no labels

Answer key

  1. 0
  2. colour as the only clue
  3. a final design
  4. Help
  5. a clear next step
  6. Back
  7. 2
  8. how easy sign-up is
  9. 0
  10. True
  11. see the home screen
  12. True
  13. black on yellow
  14. hard to read
  15. a list
  16. how easy sign-up is
  17. 6
  18. switches main sections
  19. False
  20. data saved on the phone
  21. check the cart
  22. dark blue on black
  23. Next
  24. 1
  25. 2
  26. 1
  27. poor design
  28. 0
  29. Hint
  30. Badges
  31. dead end
  32. pale pink on white
  33. a shared to-do list
  34. 4
  35. 2
  36. UI
  37. on the phone
  38. good design
  39. Science
  40. labels on every icon

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