App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 990 · 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 the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
2. 2.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 36 px tall. How many px taller must it be?
3. 3.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Back button: 56 px tall
   Next button: 44 px tall
   Done button: 52 px tall (a) Back (b) Done (c) Next
4. 4.True or false: how easy sign-up is is about UX (the experience). (a) False (b) True
5. 5.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) post the photo (b) take the photo (c) add a filter (d) write a caption
6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Next button: 64 px tall
   Back button: 64 px tall
   Save button: 52 px tall
   Help button: 24 px tall (a) Back (b) Help (c) Save (d) Next
7. 7.🔢 In a photo-post flow, which comes first: “write a caption” or “open the camera screen”? (a) write a caption (b) open the camera screen
8. 8.True or false: a big, easy tap area is good button design. (a) False (b) True
9. 9.True or false: a draft you are typing fits saving on the phone. (a) True (b) False
10. 10.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ filter buttons ]
    [ Add button ]
    [ big picture ]
    [ Save button ]
    [ tab bar ]
11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. tap Back
    4. open “Friend list”
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
12. 12.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 52 px tall
    Save button: 52 px tall
    Back button: 36 px tall
    Send button: 64 px tall
13. 13.🔢 In a photo-post flow, which comes first: “take the photo” or “post the photo”? (a) take the photo (b) post the photo
14. 14.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
15. 15.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) a tab bar (c) the back button
16. 16.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) sudden loud sounds
17. 17.True or false: grey text on grey is good button design. (a) True (b) False
18. 18.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ top bar ]
    [ filter buttons ]
    [ search box ]
    [ list of items ]
    [ menu icon ] (a) menu icon (b) filter buttons (c) list of items (d) search box
19. 19.True or false: the button colours is about UX (the experience). (a) True (b) False
20. 20.🔘 Our rule: buttons are at least 48 px tall. The Done button is 36 px tall. How many px taller must it be?
21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Chat tab
    3. open “Video”
    4. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. open “Help page”
    Which screen are you on now? (a) Match report (b) Home (c) Search (d) Help page
23. 23.💾 What is a variable? (a) a picture (b) a named box for a value (c) a phone setting (d) a type of screen
24. 24.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 44 px tall
    Back button: 52 px tall
    Done button: 32 px tall
    Next button: 40 px tall
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Label: 20 px
    Body text: 20 px
26. 26.🔢 In a quiz-app flow, which comes first: “see if it is right” or “read a question”? (a) read a question (b) see if it is right
27. 27.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Map”
    3. open “Match report”
    4. open “Map”
    Which screen are you on now? (a) Match report (b) Quiz (c) Map (d) Lessons
28. 28.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) post the photo (c) take the photo (d) open the camera screen
29. 29.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
30. 30.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) shortcut (c) home screen (d) tab bar
31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Score card”
    3. open “Friend list”
    4. open “Video”
    5. tap Back
    Which screen are you on now? (a) Video (b) Score card (c) Friend list (d) Map
32. 32.Which of these is true of a tab bar? (a) undoes one move (b) hides extra links (c) goes to the last screen (d) sits at the bottom
33. 33.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
34. 34.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it adds colours (d) it saves data
35. 35.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
36. 36.True or false: the font size is about UX (the experience). (a) False (b) True
37. 37.💾 What does this code show? (Positions start at 0.)
    let friends = ["Meera", "Zoya", "Arjun", "Riya", "Aman"];
    show(friends[2]); (a) Zoya (b) Arjun (c) Riya (d) Meera
38. 38.🔢 In a food-order flow, which comes LAST? (a) pay for the order (b) pick a dish (c) track the order (d) add it to the cart
39. 39.🔀 What is a user flow? (a) the path through screens (b) a colour theme (c) a charging cable (d) a type of font
40. 40.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Zoya", "Arjun"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Zoya (b) Arjun (c) Meera

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