App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 22 · 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.Which of these fits saving on the phone? (a) photos on two devices (b) your last game level (c) a class leaderboard (d) chat messages to friends
2. 2.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Shop → Offers
   Design B: Home → Confirm → Menu → Shop → Pay → Offers (a) Design A (b) Design B
3. 3.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Search → Menu → Size → Shop
   Design B: Home → Cart → Confirm (a) Design A (b) Design B
4. 4.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
5. 5.True or false: a big, easy tap area is poor button design. (a) False (b) True
6. 6.True or false: a draft you are typing fits saving on the phone. (a) False (b) True
7. 7.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) hides extra links (c) goes to the last screen (d) opens a list of pages
8. 8.Which of these is true of a tab bar? (a) sits at the bottom (b) undoes one move (c) goes to the last screen (d) hides extra links
9. 9.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
10. 10.Which of these is true of a wireframe? (a) uses the final pictures (b) looks like the real app (c) shows where things go (d) shows the real fonts
11. 11.💾 What number does this code show?
    let stars = 9;
    stars = stars - 9;
    stars = stars + 1;
    show(stars);
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. open “Video”
    4. open “Match report”
    5. open “Score card”
    Which screen are you on now? (a) Score card (b) Match report (c) Video (d) Feed
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Address → Shop → Cart → Pens → Item
    Design B: Home → Offers → Results → Confirm
14. 14.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ menu icon ]
    [ title text ]
    [ search box ]
    [ big picture ]
    [ top bar ] (a) top bar (b) title text (c) menu icon (d) tab bar
15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. open “Map”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Save button is 36 px tall. How many px taller must it be?
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Caption: 17 px
    Label: 28 px
    Menu: 14 px
    Body text: 18 px (a) Menu (b) Title (c) Label (d) Caption
18. 18.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ top bar ]
    [ Add button ]
    [ big picture ]
    [ filter buttons ]
    [ Save button ] (a) big picture (b) filter buttons (c) Save button (d) top bar
19. 19.🔍 Which is the odd one out? (a) the button colours (b) how easy sign-up is (c) the theme colours (d) the font size
20. 20.Which of these is about UX (the experience)? (a) the theme colours (b) the button colours (c) the screen layout (d) how fast a task is done
21. 21.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ list of items ]
    [ filter buttons ]
    [ Add button ]
    [ top bar ] (a) list of items (b) filter buttons (c) top bar (d) tab bar
22. 22.Which of these is true of the back button? (a) opens a list of pages (b) shows 3 to 5 icons (c) goes to the last screen (d) hides extra links
23. 23.True or false: photos on two devices fits saving in the cloud. (a) True (b) False
24. 24.🔘 Our rule: buttons are at least 48 px tall. The Send button is 20 px tall. How many px taller must it be?
25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Badges”
    3. tap Back
    4. tap the Home tab
    Which screen are you on now? (a) Home (b) Badges (c) Search (d) Map
26. 26.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ Save button ]
    [ title text ]
    [ top bar ]
    [ search box ] (a) title text (b) top bar (c) search box
27. 27.Which of these is true of a final design? (a) shows where things go (b) uses plain grey boxes (c) uses the final pictures (d) is a quick sketch
28. 28.🔍 Which is the odd one out? (a) the button colours (b) the screen layout (c) how users feel after (d) the font size
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Title: 11 px
    Caption: 22 px
    Hint: 12 px
    Body text: 18 px
30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Profile tab
    3. open “Edit photo”
    4. open “Video”
    Which screen are you on now? (a) Video (b) Home (c) Edit photo (d) Score card
31. 31.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) labels on every icon (d) icons with no labels
32. 32.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ list of items ]
    [ menu icon ]
    [ title text ]
    [ Save button ] (a) big picture (b) menu icon (c) title text (d) Save button
33. 33.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
34. 34.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 52 px tall
    Back button: 64 px tall
    Send button: 52 px tall
    Done button: 48 px tall
35. 35.🔢 In a quiz-app flow, which comes first: “see if it is right” or “tap “Start quiz””? (a) see if it is right (b) tap “Start quiz”
36. 36.💾 pop() takes off the last item. What does this code show?
    let friends = ["Aman", "Riya", "Kabir", "Zoya", "Arjun"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Aman (b) Zoya (c) Kabir (d) Riya
37. 37.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ title text ]
    [ menu icon ]
    [ filter buttons ]
    [ Save button ]
38. 38.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) tab bar (c) dead end (d) shortcut
39. 39.🔢 In a sign-up flow, what comes right after “make a password”? (a) type name and email (b) see the home screen (c) enter the code sent (d) open the app
40. 40.True or false: your last game level fits saving on the phone. (a) False (b) True

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