App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 609 · 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.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Edit photo”
   2. open “Edit photo”
   3. tap the Me tab
   4. tap the Quiz tab
   5. open “Friend list”
   How many times must you tap Back to reach the main screen of this tab?
2. 2.Which of these fits saving on the phone? (a) chat messages to friends (b) photos on two devices (c) a class leaderboard (d) notes to read offline
3. 3.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
4. 4.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
5. 5.🧭 Why should every screen show where you are? (a) to use more battery (b) so users do not get lost (c) to hide the menu (d) to look busy
6. 6.💾 In most code, the first item of a list is at position ___. (a) 1 (b) 2 (c) 0 (d) 10
7. 7.🔍 Which is the odd one out? (a) the icon shapes (b) the font size (c) the button colours (d) how users feel after
8. 8.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Lessons tab
   2. tap the Me tab
   3. tap the Quiz tab
   4. open “Badges”
   How many times must you tap Back to reach the main screen of this tab?
10. 10.True or false: a clear word like Save is good button design. (a) False (b) True
11. 11.✏️ What is a wireframe? (a) a charging cable (b) the finished app (c) a type of password (d) a simple screen sketch
12. 12.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
13. 13.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 36 px tall
    Save button: 36 px tall
    Next button: 64 px tall
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Caption: 13 px
    Body text: 15 px
15. 15.🔍 Which is the odd one out? (a) how users feel after (b) how fast a task is done (c) the theme colours (d) how many taps it takes
16. 16.🔢 In a photo-post flow, which comes first: “write a caption” or “take the photo”? (a) take the photo (b) write a caption
17. 17.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Pens → Confirm
    Design B: Home → Menu → Item (a) Design B (b) Design A
18. 18.✏️ Why draw a wireframe before coding? (a) it runs the app (b) it saves data (c) it adds colours (d) changes are quick
19. 19.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Pens → Shop
    Design B: Home → Address → Results
20. 20.Which of these is about UX (the experience)? (a) the theme colours (b) the icon shapes (c) how many taps it takes (d) the screen layout
21. 21.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
22. 22.True or false: a big, easy tap area is good button design. (a) True (b) False
23. 23.💾 What does this code show? (Positions start at 0.)
    let friends = ["Aman", "Riya", "Arjun", "Meera", "Kabir"];
    show(friends[4]); (a) Aman (b) Arjun (c) Kabir (d) Riya
24. 24.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) captions on videos (d) big touch targets
25. 25.True or false: a clear word like Save is poor button design. (a) False (b) True
26. 26.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ top bar ]
    [ filter buttons ]
    [ search box ]
    [ menu icon ]
    [ title text ]
    [ tab bar ] (a) title text (b) top bar (c) menu icon (d) search box
27. 27.💾 pop() takes off the last item. What does this code show?
    let songs = ["Sunrise", "Stars", "Monsoon", "Ocean"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Stars (b) Ocean (c) Sunrise (d) Monsoon
28. 28.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ title text ]
    [ menu icon ]
    [ top bar ]
    [ Save button ] (a) title text (b) menu icon (c) top bar (d) Save button
29. 29.🎨 UI stands for user ___. (a) idea (b) internet (c) input (d) interface
30. 30.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
31. 31.🔢 In a photo-post flow, which comes first: “add a filter” or “take the photo”? (a) add a filter (b) take the photo
32. 32.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) pick a dish (c) pay for the order (d) add it to the cart
33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Video”
    3. tap Back
    4. tap the Profile tab
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
34. 34.True or false: whether users get lost is about UX (the experience). (a) False (b) True
35. 35.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) inside a button (c) at the bottom (d) nowhere
36. 36.Which of these is true of a final design? (a) is a quick sketch (b) shows where things go (c) uses plain grey boxes (d) uses the final pictures
37. 37.🔍 Which is the odd one out? (a) the button colours (b) how fast a task is done (c) how users feel after (d) whether users get lost
38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Home tab
    3. open “Edit photo”
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Badges”
    3. open “Video”
    4. tap Back
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
40. 40.True or false: a final design shows where things go. (a) False (b) True

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