App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 689 · 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.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Item → Cart → Confirm → Menu → Pens
   Design B: Home → Shop → Address → Confirm → Pay → Search → Item
2. 2.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
3. 3.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Next button: 40 px tall
   Save button: 64 px tall
   Back button: 52 px tall
   Help button: 52 px tall
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Item → Offers
   Design B: Home → Confirm → Offers → Search → Size
5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Lessons tab
   2. tap the Me tab
   3. open “Badges”
   How many times must you tap Back to reach the main screen of this tab?
6. 6.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
7. 7.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
8. 8.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Back button: 56 px tall
   Next button: 56 px tall
   Save button: 36 px tall (a) Save (b) Next (c) Back
9. 9.🔢 In a food-order flow, which comes first: “open the menu” or “track the order”? (a) track the order (b) open the menu
10. 10.True or false: a final design has no real colours. (a) True (b) False
11. 11.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
12. 12.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) tab bar (c) dead end (d) shortcut
13. 13.🔍 Which is the odd one out? (a) whether users get lost (b) how users feel after (c) how easy sign-up is (d) the font size
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Edit photo”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
15. 15.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 52 px tall
    Help button: 60 px tall
    Done button: 44 px tall
    Cancel button: 64 px tall
16. 16.✏️ What is a wireframe? (a) a type of password (b) the finished app (c) a charging cable (d) a simple screen sketch
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Match report”
    4. tap Back
    Which screen are you on now? (a) Lessons (b) Edit photo (c) Quiz (d) Match report
18. 18.🔢 In a food-order flow, which comes first: “pick a dish” or “track the order”? (a) track the order (b) pick a dish
19. 19.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) read a question (b) see if it is right (c) see the final score (d) pick an answer
20. 20.🔢 In a photo-post flow, which comes first: “take the photo” or “post the photo”? (a) take the photo (b) post the photo
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Cart → Offers → Menu → Size → Item
    Design B: Home → Address → Pay
22. 22.True or false: a final design has the real colours. (a) True (b) False
23. 23.🔢 In a photo-post flow, what comes right after “take the photo”? (a) open the camera screen (b) write a caption (c) add a filter (d) post the photo
24. 24.🔘 Our rule: buttons are at least 48 px tall. The Done button is 20 px tall. How many px taller must it be?
25. 25.💾 What number does this code show?
    let coins = 8;
    coins = coins - 1;
    coins = coins + 1;
    show(coins);
26. 26.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) more colours (c) worse UX (d) better UX
27. 27.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
28. 28.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ list of items ]
    [ search box ]
    [ menu icon ]
    [ big picture ]
    [ top bar ] (a) search box (b) menu icon (c) top bar (d) list of items
29. 29.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap Back
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
30. 30.🔢 In a food-order flow, which comes FIRST? (a) add it to the cart (b) check the cart (c) open the menu (d) pay for the order
31. 31.🔘 Our rule: buttons are at least 48 px tall. The Save button is 44 px tall. How many px taller must it be?
32. 32.💾 pop() takes off the last item. What does this code show?
    let friends = ["Zoya", "Meera", "Riya", "Aman"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Aman (b) Riya (c) Zoya (d) Meera
33. 33.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 60 px tall
    Send button: 40 px tall
    Help button: 40 px tall
    Start button: 36 px tall
34. 34.🎨 Who should you test the UX with? (a) only yourself (b) nobody (c) real users (d) the app icon
35. 35.🌗 Is red on green easy or hard to read on a button? (a) hard to read (b) easy to read
36. 36.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ top bar ]
    [ filter buttons ]
    [ Save button ]
    [ search box ]
    [ menu icon ] (a) top bar (b) menu icon (c) filter buttons (d) search box
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Footer: 12 px
    Caption: 18 px (a) Footer (b) Caption (c) Hint
38. 38.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
39. 39.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Cart → Item → Confirm → Address → Results
    Design B: Home → Results → Cart → Shop → Size (a) Design B (b) Design A
40. 40.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI

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