App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 140 · 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, which comes first: “track the order” or “pick a dish”? (a) track the order (b) pick a dish
2. 2.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
3. 3.Which of these is true of the back button? (a) hides extra links (b) switches main sections (c) sits at the bottom (d) goes to the last screen
4. 4.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Done button: 52 px tall
   Help button: 40 px tall
   Cancel button: 44 px tall
   Save button: 60 px tall
5. 5.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Size → Menu
   Design B: Home → Pay → Results → Size → Address (a) Design B (b) Design A
6. 6.Which of these is true of a tab bar? (a) goes to the last screen (b) undoes one move (c) hides extra links (d) shows 3 to 5 icons
7. 7.💾 Where should the app save your last game level: on the phone or in the cloud? (a) on the phone (b) in the cloud
8. 8.🔀 What is a user flow? (a) a type of font (b) a charging cable (c) a colour theme (d) the path through screens
9. 9.💾 What number does this code show?
   let coins = 4;
   coins = coins - 3;
   coins = coins + 3;
   show(coins);
10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Score card”
    3. open “Friend list”
    4. tap Back
    Which screen are you on now? (a) Friend list (b) Home (c) Score card (d) Match report
11. 11.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 24 px tall
    Next button: 52 px tall
    Help button: 56 px tall (a) Help (b) Next (c) Send
12. 12.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) tiny tap areas
13. 13.True or false: a clear word like Save is poor button design. (a) False (b) True
14. 14.🔢 In a quiz-app flow, what comes right after “read a question”? (a) see the final score (b) see if it is right (c) tap “Start quiz” (d) pick an answer
15. 15.🔘 Our rule: buttons are at least 48 px tall. The Save button is 28 px tall. How many px taller must it be?
16. 16.True or false: a final design shows the real fonts. (a) True (b) False
17. 17.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
18. 18.Which of these is true of a wireframe? (a) looks like the real app (b) is a quick sketch (c) has the real colours (d) uses the final pictures
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Quiz tab
    3. open “Video”
    4. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
20. 20.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Size
    Design B: Home → Cart → Address → Search → Results → Shop → Offers
22. 22.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Match report”
    Which screen are you on now? (a) Map (b) Feed (c) Match report (d) Chat
24. 24.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a picture goes here (c) delete this (d) a closed app
25. 25.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ title text ]
    [ tab bar ]
    [ big picture ] (a) title text (b) Add button (c) big picture (d) tab bar
26. 26.🎨 UI stands for user ___. (a) input (b) internet (c) interface (d) idea
27. 27.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
    [ Save button ]
    [ tab bar ]
    [ list of items ]
    [ big picture ]
    [ Add button ]
    [ filter buttons ] (a) Save button (b) big picture (c) Add button (d) list of items
28. 28.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
29. 29.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) sudden loud sounds (d) big touch targets
30. 30.Which colour pair is easy to read? (a) light grey on white (b) red on green (c) white on black (d) yellow on white
31. 31.💾 pop() takes off the last item. What does this code show?
    let songs = ["Sunrise", "Monsoon", "Stars", "Kites"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Monsoon (b) Sunrise (c) Kites (d) Stars
32. 32.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ tab bar ]
    [ filter buttons ]
    [ title text ]
    [ top bar ] (a) top bar (b) title text (c) tab bar
33. 33.Which colour pair is hard to read? (a) white on dark green (b) red on green (c) dark blue on white (d) white on black
34. 34.🖼️ How many parts (boxes) does this wireframe have?
    [ tab bar ]
    [ search box ]
    [ filter buttons ]
    [ menu icon ]
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Address → Shop → Results
    Design B: Home → Menu → Pay
36. 36.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 72 px tall
    Save button: 72 px tall
    Start button: 44 px tall (a) Save (b) Back (c) Start
37. 37.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a shared chat (c) a cloud backup (d) data saved on the phone
38. 38.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 36 px tall
    Next button: 52 px tall
    Send button: 68 px tall (a) Send (b) Help (c) Next
39. 39.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
40. 40.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 3 to 5 (c) 20 (d) 1

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