App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 407 · 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 food-order flow, what comes right after “pick a dish”? (a) add it to the cart (b) open the menu (c) track the order (d) check the cart
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Done button: 44 px tall
   Start button: 64 px tall
   Help button: 64 px tall
   Send button: 48 px tall (a) Start (b) Send (c) Done (d) Help
3. 3.True or false: a final design has no real colours. (a) True (b) False
4. 4.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Offers → Search
   Design B: Home → Offers → Item → Pay → Shop → Menu (a) Design B (b) Design A
5. 5.💾 What number does this code show?
   let stars = 7;
   stars = stars - 2;
   stars = stars + 1;
   show(stars);
6. 6.💾 What number does this code show?
   let stars = 9;
   stars = stars - 3;
   stars = stars + 1;
   show(stars);
7. 7.🖼️ In this wireframe (top to bottom), what is right above the search box?
   [ list of items ]
   [ tab bar ]
   [ search box ]
   [ top bar ]
   [ filter buttons ] (a) top bar (b) tab bar (c) list of items (d) filter buttons
8. 8.Which of these is true of the back button? (a) undoes one move (b) sits at the bottom (c) switches main sections (d) hides extra links
9. 9.🔢 In a quiz-app flow, which comes first: “read a question” or “pick an answer”? (a) pick an answer (b) read a question
10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Settings tab
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
11. 11.Which of these is about UI (the look)? (a) how fast a task is done (b) the button colours (c) how users feel after (d) how easy sign-up is
12. 12.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
13. 13.True or false: a final design shows where things go. (a) True (b) False
14. 14.Which of these fits saving on the phone? (a) photos on two devices (b) notes to read offline (c) chat messages to friends (d) a shared to-do list
15. 15.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
16. 16.💾 What number does this code show?
    let score = 3;
    score = score - 2;
    score = score + 2;
    show(score);
17. 17.Which colour pair is easy to read? (a) light grey on white (b) red on green (c) white on dark green (d) pale pink on white
18. 18.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Match report”
    3. tap Back
    4. tap the Quiz tab
    5. open “Match report”
    Which screen are you on now? (a) Edit photo (b) Lessons (c) Match report (d) Quiz
20. 20.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
21. 21.🔘 Our rule: buttons are at least 48 px tall. The Next button is 36 px tall. How many px taller must it be?
22. 22.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ Add button ]
    [ big picture ]
    [ Save button ]
    [ top bar ]
    [ title text ] (a) big picture (b) tab bar (c) title text (d) Save button
23. 23.✏️ What is a wireframe? (a) the finished app (b) a type of password (c) a simple screen sketch (d) a charging cable
24. 24.💾 Saving data in the cloud lets you ___. (a) never need a password (b) shrink the app (c) skip the internet (d) use it on any device
25. 25.Which of these is true of a final design? (a) uses plain grey boxes (b) has the real colours (c) shows where things go (d) has no real colours
26. 26.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
27. 27.💾 What number does this code show?
    let stars = 4;
    stars = stars - 3;
    stars = stars + 3;
    show(stars);
28. 28.🎨 Is this about UI or UX: whether users get lost? (a) UI (b) UX
29. 29.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) nowhere (c) inside a button (d) in the middle
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Menu: 22 px
    Label: 21 px
31. 31.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 52 px tall
    Back button: 60 px tall
    Done button: 36 px tall
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Size → Pay → Item → Results → Offers
    Design B: Home → Offers → Cart → Address
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Offers
    Design B: Home → Confirm → Pay → Shop
34. 34.🎨 UX stands for user ___. (a) example (b) express (c) experience (d) extra
35. 35.True or false: a wireframe uses plain grey boxes. (a) False (b) True
36. 36.Which of these is about UI (the look)? (a) how users feel after (b) how fast a task is done (c) whether users get lost (d) the icon shapes
37. 37.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Save button is 36 px tall. How many px taller must it be?
39. 39.🔘 Our rule: buttons are at least 48 px tall. The Back button is 36 px tall. How many px taller must it be?
40. 40.True or false: a big, easy tap area is good button design. (a) False (b) True

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