App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 406 · 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 photo-post flow, which comes first: “post the photo” or “add a filter”? (a) add a filter (b) post the photo
2. 2.💾 What does this code show? (Positions start at 0.)
   let songs = ["Monsoon", "Rain", "Sunrise", "Stars"];
   show(songs[3]); (a) Monsoon (b) Sunrise (c) Stars (d) Rain
3. 3.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
4. 4.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Cancel button: 40 px tall
   Start button: 64 px tall
   Save button: 44 px tall
   Done button: 32 px tall
5. 5.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
6. 6.🌗 Is white on black easy or hard to read on a button? (a) hard to read (b) easy to read
7. 7.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Send button: 44 px tall
   Next button: 40 px tall
   Save button: 32 px tall
   Done button: 44 px tall
8. 8.🔘 Our rule: buttons are at least 48 px tall. The Send button is 32 px tall. How many px taller must it be?
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 19 px
   Footer: 10 px
   Menu: 16 px
   Caption: 24 px
10. 10.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the last app used (c) that tab’s main screen (d) the phone settings
11. 11.🎨 UI stands for user ___. (a) idea (b) input (c) internet (d) interface
12. 12.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) icons with no labels (d) tiny tap areas
13. 13.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 40 px tall
    Start button: 52 px tall
    Save button: 44 px tall
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
15. 15.💾 What does this code show? (Positions start at 0.)
    let friends = ["Aman", "Kabir", "Zoya", "Riya", "Meera"];
    show(friends[2]); (a) Kabir (b) Aman (c) Zoya (d) Riya
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Friend list”
    Which screen are you on now? (a) Search (b) Match report (c) Home (d) Friend list
17. 17.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
18. 18.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) uses plain grey boxes (d) uses the final pictures
19. 19.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Item
    Design B: Home → Pens → Shop → Pay
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) big touch targets (d) text that can grow
21. 21.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ filter buttons ]
    [ Add button ]
    [ big picture ]
    [ tab bar ]
    [ search box ] (a) tab bar (b) Add button (c) search box (d) filter buttons
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Pens → Cart
    Design B: Home → Size → Address → Pens → Results → Pay (a) Design A (b) Design B
23. 23.💾 What does this code show? (Positions start at 0.)
    let songs = ["Monsoon", "Stars", "Sunrise", "Kites"];
    show(songs[3]); (a) Sunrise (b) Kites (c) Monsoon (d) Stars
24. 24.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
25. 25.Which of these is true of a menu button? (a) opens a list of pages (b) goes to the last screen (c) sits at the bottom (d) switches main sections
26. 26.True or false: space between buttons is poor button design. (a) False (b) True
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Settings tab
    3. open “Friend list”
    4. tap Back
    Which screen are you on now? (a) Edit photo (b) Friend list (c) Feed (d) Settings
28. 28.🔢 In a sign-up flow, which comes first: “see the home screen” or “make a password”? (a) see the home screen (b) make a password
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Footer: 11 px
    Body text: 13 px
    Label: 15 px
    Hint: 14 px
30. 30.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ title text ]
    [ Add button ]
    [ top bar ]
31. 31.🔍 Which is the odd one out? (a) how easy sign-up is (b) how users feel after (c) how fast a task is done (d) the screen layout
32. 32.💾 Saving data in the cloud lets you ___. (a) never need a password (b) skip the internet (c) use it on any device (d) shrink the app
33. 33.💾 What number does this code show?
    let coins = 7;
    coins = coins - 4;
    coins = coins + 2;
    show(coins);
34. 34.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
35. 35.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) track the order (c) pay for the order (d) check the cart
36. 36.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
    [ tab bar ]
    [ big picture ]
    [ filter buttons ]
    [ top bar ] (a) top bar (b) filter buttons (c) big picture
37. 37.💾 What does this code show? (Positions start at 0.)
    let friends = ["Riya", "Arjun", "Meera", "Kabir"];
    show(friends[2]); (a) Arjun (b) Riya (c) Meera (d) Kabir
38. 38.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Item → Shop
    Design B: Home → Pens → Offers → Shop → Size → Search → Pay
39. 39.Which of these is true of a wireframe? (a) shows the real fonts (b) uses the final pictures (c) has the real colours (d) has no real colours
40. 40.🔍 Which is the odd one out? (a) how fast a task is done (b) the theme colours (c) whether users get lost (d) how many taps it takes

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