App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 658 · 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 this wireframe (top to bottom), what is right below the title text?
   [ search box ]
   [ top bar ]
   [ title text ]
   [ Add button ]
   [ tab bar ] (a) search box (b) top bar (c) Add button (d) tab bar
2. 2.💾 What does this code show? (Positions start at 0.)
   let notes = ["Art", "Science", "Maths", "Music", "Sports"];
   show(notes[4]); (a) Art (b) Science (c) Sports (d) Maths
3. 3.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a tab bar (c) a menu button
4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Video”
   2. tap the Settings tab
   3. open “Friend list”
   4. tap the Feed tab
   Which screen are you on now? (a) Friend list (b) Feed (c) Video (d) Chat
5. 5.🔢 In a food-order flow, which comes first: “pay for the order” or “check the cart”? (a) pay for the order (b) check the cart
6. 6.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) add a filter (b) take the photo (c) post the photo (d) write a caption
7. 7.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Match report”
   2. tap Back
   3. tap the Home tab
   4. tap the Home tab
   Which screen are you on now? (a) Profile (b) Home (c) Match report (d) Search
9. 9.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
10. 10.Which of these is about UI (the look)? (a) the icon shapes (b) whether users get lost (c) how fast a task is done (d) how easy sign-up is
11. 11.Which of these is about UX (the experience)? (a) the theme colours (b) the screen layout (c) how fast a task is done (d) the font size
12. 12.🔍 Which is the odd one out? (a) how many taps it takes (b) the font size (c) the screen layout (d) the button colours
13. 13.🔢 In a sign-up flow, which comes first: “see the home screen” or “open the app”? (a) see the home screen (b) open the app
14. 14.💾 What number does this code show?
    let score = 5;
    score = score - 2;
    score = score + 2;
    show(score);
15. 15.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) check the cart (b) pick a dish (c) pay for the order (d) open the menu
16. 16.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now? (a) Chat (b) Match report (c) Edit photo (d) Feed
18. 18.Which colour pair is easy to read? (a) white on black (b) red on green (c) yellow on white (d) light grey on white
19. 19.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ Add button ]
    [ list of items ]
    [ title text ]
    [ menu icon ] (a) title text (b) Add button (c) menu icon
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Badges”
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
21. 21.Which of these fits saving on the phone? (a) a shared to-do list (b) chat messages to friends (c) a class leaderboard (d) notes to read offline
22. 22.True or false: the screen layout is about UI (the look). (a) True (b) False
23. 23.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
24. 24.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
25. 25.Which of these is true of a final design? (a) shows where things go (b) has no real colours (c) looks like the real app (d) uses plain grey boxes
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Match report”
    3. open “Map”
    4. tap Back
    Which screen are you on now? (a) Friend list (b) Map (c) Match report (d) Home
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Edit photo”
    3. tap the Home tab
    4. tap the Home tab
    5. open “Match report”
    Which screen are you on now? (a) Match report (b) Home (c) Search (d) Edit photo
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Body text: 10 px
    Footer: 13 px
    Hint: 14 px
29. 29.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) a random page (c) a dead end (d) the same screen
30. 30.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 48 px tall
    Start button: 24 px tall
    Back button: 68 px tall (a) Cancel (b) Start (c) Back
32. 32.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Back button: 32 px tall
    Save button: 40 px tall
    Cancel button: 44 px tall
    Next button: 60 px tall
33. 33.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
34. 34.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ tab bar ]
    [ filter buttons ]
    [ big picture ]
    [ title text ]
    [ search box ] (a) filter buttons (b) search box (c) tab bar (d) title text
35. 35.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) the phone is lost (c) you send a message (d) the app is closed
36. 36.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
37. 37.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
38. 38.💾 What does this code show? (Positions start at 0.)
    let friends = ["Zoya", "Kabir", "Aman", "Riya", "Arjun"];
    show(friends[0]); (a) Zoya (b) Aman (c) Riya (d) Kabir
39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Home tab
    3. open “Help page”
    4. open “Match report”
    5. tap Back
    Which screen are you on now? (a) Home (b) Match report (c) Help page (d) Friend list
40. 40.✏️ What is a wireframe? (a) a simple screen sketch (b) a charging cable (c) a type of password (d) the finished app

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