App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 230 · 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), which part is at the very bottom?
   [ top bar ]
   [ Add button ]
   [ filter buttons ]
   [ title text ]
   [ search box ] (a) Add button (b) search box (c) title text (d) top bar
2. 2.💾 What does this code show? (Positions start at 0.)
   let friends = ["Kabir", "Riya", "Aman", "Arjun", "Zoya"];
   show(friends[2]); (a) Riya (b) Kabir (c) Aman (d) Arjun
3. 3.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 11 px
   Body text: 19 px
   Hint: 19 px (a) Title (b) Hint (c) Body text
5. 5.🖼️ In this wireframe (top to bottom), what is right above the top bar?
   [ menu icon ]
   [ title text ]
   [ search box ]
   [ top bar ]
   [ Add button ] (a) menu icon (b) Add button (c) search box (d) title text
6. 6.🖼️ In this wireframe (top to bottom), what is right below the top bar?
   [ top bar ]
   [ Add button ]
   [ title text ]
   [ big picture ]
   [ Save button ]
   [ filter buttons ] (a) Save button (b) title text (c) Add button (d) filter buttons
7. 7.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
8. 8.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ Save button ]
   [ menu icon ]
   [ search box ]
   [ tab bar ]
   [ top bar ] (a) top bar (b) search box (c) Save button (d) menu icon
9. 9.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
10. 10.Which of these is about UX (the experience)? (a) the button colours (b) the icon shapes (c) the theme colours (d) how fast a task is done
11. 11.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) at the bottom (c) nowhere (d) inside a button
12. 12.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
13. 13.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it adds colours (d) it saves data
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Search tab
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
15. 15.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Help button is 36 px tall. How many px taller must it be?
17. 17.Which of these is true of a wireframe? (a) uses the final pictures (b) uses plain grey boxes (c) looks like the real app (d) shows the real fonts
18. 18.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ top bar ]
    [ big picture ]
    [ title text ]
    [ list of items ]
    [ filter buttons ] (a) title text (b) top bar (c) list of items (d) filter buttons
19. 19.💾 What is a variable? (a) a picture (b) a named box for a value (c) a type of screen (d) a phone setting
20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Me tab
    3. tap the Me tab
    4. open “Score card”
    5. tap Back
    Which screen are you on now? (a) Edit photo (b) Lessons (c) Me (d) Score card
21. 21.💾 What number does this code show?
    let lives = 8;
    lives = lives - 5;
    lives = lives + 1;
    show(lives);
22. 22.🔘 Our rule: buttons are at least 48 px tall. The Next button is 28 px tall. How many px taller must it be?
23. 23.💾 What number does this code show?
    let lives = 5;
    lives = lives - 4;
    lives = lives + 4;
    show(lives);
24. 24.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Back button: 52 px tall
    Cancel button: 48 px tall
    Start button: 52 px tall
    Help button: 52 px tall
25. 25.Which of these is true of a wireframe? (a) uses the final pictures (b) has no real colours (c) looks like the real app (d) has the real colours
26. 26.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
27. 27.🎨 Is this about UI or UX: the icon shapes? (a) UX (b) UI
28. 28.Which of these is true of a final design? (a) is a quick sketch (b) shows where things go (c) looks like the real app (d) uses plain grey boxes
29. 29.💾 In most code, the first item of a list is at position ___. (a) 2 (b) 1 (c) 10 (d) 0
30. 30.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a cloud backup (c) a shared chat (d) data saved on the phone
31. 31.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) see the home screen (b) type name and email (c) make a password (d) enter the code sent
32. 32.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) fast-flashing lights (d) big touch targets
33. 33.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
34. 34.🎨 Who should you test the UX with? (a) only yourself (b) the app icon (c) nobody (d) real users
35. 35.🔢 In a quiz-app flow, which comes LAST? (a) see the final score (b) pick an answer (c) read a question (d) tap “Start quiz”
36. 36.Which colour pair is easy to read? (a) pale pink on white (b) light grey on white (c) dark blue on white (d) dark blue on black
37. 37.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
38. 38.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) see if it is right (c) pick an answer (d) see the final score
39. 39.True or false: a wireframe has the real colours. (a) True (b) False
40. 40.Which of these is true of a tab bar? (a) hides extra links (b) goes to the last screen (c) opens a list of pages (d) sits at the bottom

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