App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 515 · 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.Which of these fits saving in the cloud? (a) chat messages to friends (b) the sound on/off setting (c) a draft you are typing (d) notes to read offline
2. 2.💾 pop() takes off the last item. What does this code show?
   let friends = ["Arjun", "Kabir", "Zoya", "Aman", "Riya"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Aman (b) Kabir (c) Arjun (d) Zoya
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Pens → Address → Item
   Design B: Home → Menu → Shop
4. 4.🖼️ In this wireframe (top to bottom), what is right above the list of items?
   [ top bar ]
   [ list of items ]
   [ big picture ]
   [ Save button ]
   [ search box ] (a) Save button (b) top bar (c) big picture (d) search box
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Cart → Shop
   Design B: Home → Search → Cart → Shop
6. 6.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “enter the code sent”? (a) tap “Sign up” (b) enter the code sent
7. 7.💾 What does this code show? (Positions start at 0.)
   let notes = ["Science", "Maths", "Sports", "Hindi", "Art"];
   show(notes[2]); (a) Science (b) Hindi (c) Sports (d) Maths
8. 8.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) the same screen (c) a clear next step (d) a dead end
9. 9.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) at the bottom (d) nowhere
10. 10.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Arjun", "Riya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Meera (b) Riya (c) Arjun
11. 11.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Size
    Design B: Home → Cart → Menu → Item → Shop
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Body text: 9 px
    Title: 21 px
    Caption: 21 px
    Menu: 22 px (a) Hint (b) Title (c) Body text (d) Caption
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Confirm
    Design B: Home → Pay → Size → Pens → Search
14. 14.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 64 px tall
    Save button: 60 px tall
    Back button: 28 px tall (a) Save (b) Cancel (c) Back
16. 16.Which of these fits saving in the cloud? (a) a shared to-do list (b) notes to read offline (c) your last game level (d) the sound on/off setting
17. 17.🎨 UX stands for user ___. (a) example (b) express (c) extra (d) experience
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Body text: 22 px
    Label: 11 px (a) Label (b) Caption (c) Body text
19. 19.True or false: the icon shapes is about UX (the experience). (a) True (b) False
20. 20.🔘 Our rule: buttons are at least 48 px tall. The Start button is 36 px tall. How many px taller must it be?
21. 21.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
22. 22.💾 Saving data in the cloud lets you ___. (a) shrink the app (b) skip the internet (c) use it on any device (d) never need a password
23. 23.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
24. 24.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
25. 25.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
26. 26.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
27. 27.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) no UI at all (c) good UX but poor UI (d) perfect UX
28. 28.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ big picture ]
    [ filter buttons ]
    [ list of items ]
    [ top bar ]
    [ title text ]
29. 29.True or false: a final design uses plain grey boxes. (a) False (b) True
30. 30.True or false: a draft you are typing fits saving on the phone. (a) False (b) True
31. 31.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ big picture ]
    [ title text ]
    [ tab bar ]
    [ list of items ] (a) list of items (b) big picture (c) tab bar
32. 32.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 32 px tall
    Help button: 64 px tall
    Done button: 56 px tall (a) Help (b) Back (c) Done
33. 33.🌗 Is white on dark green easy or hard to read on a button? (a) hard to read (b) easy to read
34. 34.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 68 px tall
    Next button: 60 px tall
    Done button: 44 px tall (a) Start (b) Done (c) Next
35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Help page”
    4. tap the Home tab
    5. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
36. 36.Which of these is about UI (the look)? (a) how many taps it takes (b) whether users get lost (c) how fast a task is done (d) the theme colours
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Send button is 32 px tall. How many px taller must it be?
38. 38.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Address → Shop → Search → Size
    Design B: Home → Offers → Pay
40. 40.🔘 Our rule: buttons are at least 48 px tall. The Next button is 32 px tall. How many px taller must it be?

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