App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 521 · 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.💾 pop() takes off the last item. What does this code show?
   let friends = ["Kabir", "Meera", "Aman"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Meera (b) Kabir (c) Aman
2. 2.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ tab bar ]
   [ Add button ]
   [ title text ]
   [ search box ]
   [ top bar ]
   [ list of items ] (a) title text (b) top bar (c) Add button (d) list of items
3. 3.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) the same screen (c) a clear next step (d) a dead end
4. 4.True or false: the icon shapes is about UI (the look). (a) False (b) True
5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Search tab
   2. open “Friend list”
   3. tap the Home tab
   4. tap the Search tab
   Which screen are you on now? (a) Friend list (b) Profile (c) Search (d) Home
6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Feed tab
   2. tap the Chat tab
   3. open “Edit photo”
   4. open “Badges”
   5. open “Map”
   Which screen are you on now? (a) Feed (b) Map (c) Badges (d) Edit photo
7. 7.🔢 In a photo-post flow, what comes right after “write a caption”? (a) take the photo (b) open the camera screen (c) add a filter (d) post the photo
8. 8.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
   [ title text ]
   [ Save button ]
   [ Add button ]
   [ top bar ]
   [ tab bar ]
   [ big picture ] (a) top bar (b) Save button (c) big picture (d) title text
9. 9.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
   [ tab bar ]
   [ top bar ]
   [ filter buttons ]
   [ title text ]
   [ menu icon ]
   [ Save button ] (a) Save button (b) filter buttons (c) top bar (d) title text
10. 10.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 48 px tall
    Send button: 52 px tall
    Save button: 28 px tall (a) Cancel (b) Send (c) Save
11. 11.Which of these is true of a final design? (a) uses plain grey boxes (b) is a quick sketch (c) shows where things go (d) uses the final pictures
12. 12.🔘 Our rule: buttons are at least 48 px tall. The Start button is 40 px tall. How many px taller must it be?
13. 13.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ search box ]
    [ big picture ]
    [ menu icon ]
    [ title text ]
    [ Save button ]
    [ tab bar ] (a) search box (b) menu icon (c) title text (d) Save button
14. 14.True or false: the screen layout is about UX (the experience). (a) True (b) False
15. 15.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 44 px tall
    Send button: 44 px tall
    Save button: 36 px tall
    Next button: 52 px tall
16. 16.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Chat tab
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
18. 18.🧭 About how many tabs suit a tab bar best? (a) 3 to 5 (b) 10 to 12 (c) 1 (d) 20
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 64 px tall
    Back button: 36 px tall
    Help button: 68 px tall (a) Help (b) Back (c) Next
20. 20.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
21. 21.Which of these is about UX (the experience)? (a) the screen layout (b) the button colours (c) the icon shapes (d) whether users get lost
22. 22.🔍 Which is the odd one out? (a) the button colours (b) the font size (c) how many taps it takes (d) the screen layout
23. 23.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ menu icon ]
    [ search box ]
    [ title text ]
    [ list of items ]
    [ Save button ]
    [ big picture ] (a) menu icon (b) Save button (c) big picture (d) title text
24. 24.💾 What number does this code show?
    let friends = ["Riya", "Arjun", "Zoya", "Kabir"];
    friends.push("Aman");
    show(friends.length);
25. 25.True or false: a class leaderboard fits saving in the cloud. (a) False (b) True
26. 26.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) tap “Start quiz” (c) pick an answer (d) read a question
27. 27.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) open the camera screen (c) post the photo (d) write a caption
28. 28.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
29. 29.🔘 Our rule: buttons are at least 48 px tall. The Done button is 40 px tall. How many px taller must it be?
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Shop → Item → Size → Results
    Design B: Home → Cart → Confirm → Address → Item → Pay → Search
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 28 px tall
    Back button: 68 px tall
    Save button: 68 px tall (a) Back (b) Next (c) Save
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Search → Results
    Design B: Home → Shop → Address → Menu → Item → Offers → Confirm
33. 33.🔢 In a quiz-app flow, which comes first: “see if it is right” or “see the final score”? (a) see the final score (b) see if it is right
34. 34.🔢 In a sign-up flow, which comes first: “open the app” or “make a password”? (a) open the app (b) make a password
35. 35.🧭 What does the back button usually do? (a) opens settings (b) deletes the page (c) closes all apps (d) goes to the last screen
36. 36.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
37. 37.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ top bar ]
    [ list of items ]
    [ title text ]
    [ Add button ]
    [ menu icon ] (a) filter buttons (b) top bar (c) list of items (d) menu icon
38. 38.True or false: a wireframe shows the real fonts. (a) False (b) True
39. 39.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound

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