App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 857 · 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.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
2. 2.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) sits at the bottom (c) opens a list of pages (d) goes to the last screen
3. 3.True or false: notes to read offline fits saving on the phone. (a) True (b) False
4. 4.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
5. 5.💾 Which works with no internet at all? (a) a shared chat (b) a cloud backup (c) a cloud leaderboard (d) data saved on the phone
6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Send button: 24 px tall
   Cancel button: 52 px tall
   Back button: 72 px tall
   Done button: 56 px tall (a) Back (b) Cancel (c) Send (d) Done
7. 7.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Cancel button: 40 px tall
   Start button: 32 px tall
   Save button: 56 px tall
   Done button: 64 px tall
8. 8.🔘 Our rule: buttons are at least 48 px tall. The Back button is 20 px tall. How many px taller must it be?
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 19 px
   Hint: 19 px
   Footer: 12 px (a) Hint (b) Footer (c) Caption
10. 10.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
11. 11.True or false: a wireframe is a quick sketch. (a) True (b) False
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Video”
    3. tap Back
    Which screen are you on now? (a) Badges (b) Video (c) Feed (d) Chat
13. 13.🧭 What does the back button usually do? (a) closes all apps (b) opens settings (c) deletes the page (d) goes to the last screen
14. 14.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Sports", "Science"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Science (c) Sports
15. 15.Which of these is true of a wireframe? (a) uses the final pictures (b) is a quick sketch (c) looks like the real app (d) has the real colours
16. 16.Which of these is about UX (the experience)? (a) the icon shapes (b) the theme colours (c) the screen layout (d) how fast a task is done
17. 17.True or false: a draft you are typing fits saving in the cloud. (a) False (b) True
18. 18.Which of these is about UI (the look)? (a) how fast a task is done (b) whether users get lost (c) the button colours (d) how many taps it takes
19. 19.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Cart → Item → Address
    Design B: Home → Pay → Pens (a) Design B (b) Design A
20. 20.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
21. 21.🔢 In a photo-post flow, which comes first: “write a caption” or “post the photo”? (a) post the photo (b) write a caption
22. 22.🔢 In a photo-post flow, which comes first: “post the photo” or “add a filter”? (a) post the photo (b) add a filter
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Footer: 16 px
    Body text: 28 px
    Title: 13 px
    Menu: 19 px (a) Footer (b) Title (c) Label (d) Body text
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 17 px
    Footer: 26 px
    Caption: 17 px
    Label: 18 px (a) Footer (b) Title (c) Caption (d) Hint
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 44 px tall
    Cancel button: 72 px tall
    Send button: 56 px tall (a) Send (b) Back (c) Cancel
26. 26.✏️ Why draw a wireframe before coding? (a) it saves data (b) it adds colours (c) it runs the app (d) changes are quick
27. 27.💾 What number does this code show?
    let friends = ["Riya", "Arjun", "Zoya", "Aman"];
    friends.push("Meera");
    friends.push("Kabir");
    show(friends.length);
28. 28.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ list of items ]
    [ title text ]
    [ filter buttons ]
    [ menu icon ] (a) menu icon (b) title text (c) list of items (d) big picture
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Badges”
    3. open “Badges”
    4. tap the Quiz tab
    5. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
30. 30.🎨 UI stands for user ___. (a) interface (b) input (c) idea (d) internet
31. 31.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
32. 32.True or false: a wireframe uses the final pictures. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Hint: 12 px
    Title: 19 px
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. tap the Home tab
    4. open “Video”
    5. tap the Profile tab
    Which screen are you on now? (a) Match report (b) Home (c) Profile (d) Video
35. 35.Which of these is true of a tab bar? (a) undoes one move (b) goes to the last screen (c) opens a list of pages (d) switches main sections
36. 36.🔘 Our rule: buttons are at least 48 px tall. The Help button is 36 px tall. How many px taller must it be?
37. 37.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) take the photo (b) post the photo
38. 38.💾 pop() takes off the last item. What does this code show?
    let songs = ["Stars", "Ocean", "Kites"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Stars (b) Kites (c) Ocean
39. 39.🔢 In a food-order flow, which comes first: “check the cart” or “track the order”? (a) check the cart (b) track the order
40. 40.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX

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