App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 322 · 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.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) home screen (c) shortcut (d) tab bar
2. 2.💾 What does this code show? (Positions start at 0.)
   let notes = ["Art", "Sports", "Maths", "Hindi"];
   show(notes[1]); (a) Art (b) Maths (c) Hindi (d) Sports
3. 3.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Done button: 24 px tall
   Cancel button: 56 px tall
   Next button: 72 px tall (a) Next (b) Done (c) Cancel
4. 4.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ big picture ]
   [ Save button ]
   [ filter buttons ]
   [ search box ]
   [ menu icon ] (a) search box (b) big picture (c) menu icon (d) Save button
5. 5.💾 Which works with no internet at all? (a) a cloud backup (b) a shared chat (c) data saved on the phone (d) a cloud leaderboard
6. 6.🧭 What does the back button usually do? (a) opens settings (b) closes all apps (c) goes to the last screen (d) deletes the page
7. 7.Which of these is about UX (the experience)? (a) how users feel after (b) the font size (c) the button colours (d) the theme colours
8. 8.💾 Which can hold many values in order? (a) a button (b) a switch (c) a list (d) a single number
9. 9.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
   [ Add button ]
   [ menu icon ]
   [ big picture ]
   [ tab bar ]
   [ Save button ] (a) Save button (b) big picture (c) Add button (d) menu icon
10. 10.🎨 Is this about UI or UX: the screen layout? (a) UX (b) UI
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Title: 19 px
    Menu: 9 px
    Hint: 24 px (a) Menu (b) Hint (c) Title (d) Caption
12. 12.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
13. 13.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a final design (b) a wireframe
14. 14.💾 What number does this code show?
    let friends = ["Kabir", "Zoya", "Arjun"];
    friends.push("Aman");
    show(friends.length);
15. 15.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Back button is 36 px tall. How many px taller must it be?
17. 17.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
18. 18.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pay → Shop → Item → Address → Menu → Results
    Design B: Home → Offers → Item → Results → Menu → Pay
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Quiz tab
    3. tap the Quiz tab
    Which screen are you on now? (a) Lessons (b) Me (c) Quiz
20. 20.Which of these is true of a final design? (a) uses the final pictures (b) shows where things go (c) is a quick sketch (d) has no real colours
21. 21.💾 pop() takes off the last item. What does this code show?
    let friends = ["Aman", "Riya", "Arjun", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Riya (b) Meera (c) Arjun (d) Aman
22. 22.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
23. 23.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
24. 24.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) tap “Sign up” (c) see the home screen (d) open the app
25. 25.True or false: a final design has the real colours. (a) False (b) True
26. 26.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) uses the final pictures (d) has no real colours
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Match report”
    3. tap the Settings tab
    Which screen are you on now? (a) Feed (b) Match report (c) Chat (d) Settings
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Video”
    4. open “Score card”
    5. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
29. 29.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 64 px tall
    Save button: 24 px tall
    Send button: 48 px tall (a) Help (b) Send (c) Save
30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Search tab
    3. tap the Home tab
    Which screen are you on now? (a) Home (b) Search (c) Profile
31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Settings tab
    3. open “Badges”
    4. tap the Feed tab
    5. open “Video”
    Which screen are you on now? (a) Feed (b) Badges (c) Video (d) Map
32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Score card”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
33. 33.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) the same screen (c) a dead end (d) a random page
34. 34.💾 What number does this code show?
    let stars = 6;
    stars = stars - 5;
    stars = stars + 5;
    show(stars);
35. 35.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Help page”
    3. open “Map”
    4. tap the Home tab
    Which screen are you on now? (a) Help page (b) Search (c) Map (d) Home
37. 37.🔍 Which is the odd one out? (a) how fast a task is done (b) the icon shapes (c) the theme colours (d) the screen layout
38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Video”
    4. open “Match report”
    5. tap the Home tab
    Which screen are you on now? (a) Search (b) Match report (c) Home (d) Video
39. 39.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
40. 40.Which of these fits saving on the phone? (a) your last game level (b) chat messages to friends (c) photos on two devices (d) a class leaderboard

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