App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 338 · 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.True or false: photos on two devices fits saving on the phone. (a) False (b) True
2. 2.🌗 Is pale pink on white easy or hard to read on a button? (a) hard to read (b) easy to read
3. 3.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
4. 4.🔍 Which is the odd one out? (a) the button colours (b) how many taps it takes (c) the screen layout (d) the font size
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Pay → Size → Results → Shop → Address
   Design B: Home → Pens → Shop → Cart → Menu
6. 6.Which of these is about UI (the look)? (a) how fast a task is done (b) how easy sign-up is (c) the button colours (d) how users feel after
7. 7.🔢 In a food-order flow, which comes FIRST? (a) pick a dish (b) pay for the order (c) add it to the cart (d) open the menu
8. 8.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
9. 9.💾 What does this code show? (Positions start at 0.)
   let notes = ["Music", "Sports", "Hindi", "Maths"];
   show(notes[1]); (a) Sports (b) Music (c) Maths (d) Hindi
10. 10.Which of these is about UX (the experience)? (a) the icon shapes (b) the theme colours (c) how easy sign-up is (d) the button colours
11. 11.💾 In most code, the first item of a list is at position ___. (a) 0 (b) 1 (c) 10 (d) 2
12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Help page”
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
13. 13.🎨 UI stands for user ___. (a) idea (b) input (c) interface (d) internet
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Match report”
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
15. 15.🔢 In a food-order flow, which comes first: “add it to the cart” or “open the menu”? (a) add it to the cart (b) open the menu
16. 16.✏️ What is a wireframe? (a) the finished app (b) a charging cable (c) a type of password (d) a simple screen sketch
17. 17.🔢 In a sign-up flow, which comes first: “open the app” or “make a password”? (a) make a password (b) open the app
18. 18.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Address → Size → Menu
    Design B: Home → Item → Menu
19. 19.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) pencil and paper (c) a phone case (d) a 3D printer
20. 20.🌗 Is yellow on white easy or hard to read on a button? (a) hard to read (b) easy to read
21. 21.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UI but poor UX (c) no UI at all (d) good UX but poor UI
22. 22.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) closes all apps (d) deletes the page
23. 23.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) home screen (c) dead end (d) shortcut
24. 24.💾 What number does this code show?
    let notes = ["Maths", "Hindi", "Science", "Art"];
    notes.push("Music");
    notes.push("Sports");
    show(notes.length);
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Address → Pay → Cart → Confirm → Search → Results
    Design B: Home → Shop → Size
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Video”
    3. open “Video”
    Which screen are you on now? (a) Match report (b) Feed (c) Video (d) Chat
27. 27.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Me tab
    3. open “Friend list”
    4. tap Back
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.🌗 Is light grey on white easy or hard to read on a button? (a) hard to read (b) easy to read
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Cart → Address
    Design B: Home → Offers → Confirm
30. 30.🔢 In a photo-post flow, what comes right after “take the photo”? (a) add a filter (b) post the photo (c) write a caption (d) open the camera screen
31. 31.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Pay
    Design B: Home → Pay → Confirm → Offers → Size (a) Design B (b) Design A
32. 32.🔍 Which is the odd one out? (a) how easy sign-up is (b) the theme colours (c) the button colours (d) the screen layout
33. 33.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ tab bar ]
    [ list of items ]
    [ title text ]
    [ search box ]
    [ menu icon ]
    [ top bar ] (a) search box (b) title text (c) list of items (d) menu icon
34. 34.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
35. 35.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ top bar ]
    [ Add button ]
    [ list of items ]
    [ tab bar ]
    [ menu icon ]
    [ search box ] (a) search box (b) Add button (c) tab bar (d) top bar
36. 36.🔘 Our rule: buttons are at least 48 px tall. The Done button is 20 px tall. How many px taller must it be?
37. 37.Which of these is true of a final design? (a) is a quick sketch (b) has no real colours (c) uses plain grey boxes (d) uses the final pictures
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 44 px tall. How many px taller must it be?
39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Badges”
    3. tap the Feed tab
    4. open “Score card”
    Which screen are you on now? (a) Chat (b) Badges (c) Feed (d) Score card
40. 40.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 44 px tall
    Done button: 60 px tall
    Back button: 56 px tall
    Cancel button: 36 px tall

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