App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 454 · 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 a photo-post flow, which comes first: “open the camera screen” or “add a filter”? (a) add a filter (b) open the camera screen
2. 2.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Menu → Pens → Pay
   Design B: Home → Pens → Shop (a) Design B (b) Design A
3. 3.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) post the photo (c) add a filter (d) open the camera screen
4. 4.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) closes all apps (d) deletes the page
5. 5.True or false: a final design has no real colours. (a) False (b) True
6. 6.Which of these is true of the back button? (a) undoes one move (b) switches main sections (c) opens a list of pages (d) shows 3 to 5 icons
7. 7.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
8. 8.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Search → Menu → Results
   Design B: Home → Cart → Address → Confirm → Shop → Pay → Item
9. 9.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Next button: 52 px tall
   Cancel button: 72 px tall
   Help button: 68 px tall
   Back button: 28 px tall (a) Cancel (b) Back (c) Help (d) Next
10. 10.🖼️ How many parts (boxes) does this wireframe have?
    [ Add button ]
    [ title text ]
    [ Save button ]
    [ filter buttons ]
11. 11.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
12. 12.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 56 px tall
    Cancel button: 48 px tall
    Done button: 44 px tall
13. 13.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Friend list”
    3. open “Map”
    Which screen are you on now? (a) Map (b) Friend list (c) Home (d) Search
15. 15.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Back button is 40 px tall. How many px taller must it be?
17. 17.True or false: the screen layout is about UX (the experience). (a) False (b) True
18. 18.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Video”
    3. tap the Quiz tab
    4. tap the Quiz tab
    Which screen are you on now? (a) Quiz (b) Video (c) Lessons (d) Me
20. 20.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Menu → Pay → Address → Search
    Design B: Home → Cart → Results → Item (a) Design B (b) Design A
21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Map”
    4. tap the Profile tab
    Which screen are you on now? (a) Profile (b) Map (c) Match report (d) Home
22. 22.True or false: notes to read offline fits saving on the phone. (a) True (b) False
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pens → Item → Address → Cart → Pay
    Design B: Home → Results → Cart
24. 24.🔀 What is a user flow? (a) a colour theme (b) a charging cable (c) the path through screens (d) a type of font
25. 25.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the last app used (c) a random page (d) the phone settings
26. 26.💾 What number does this code show?
    let coins = 6;
    coins = coins - 3;
    coins = coins + 3;
    show(coins);
27. 27.🧭 Which part of navigation undoes one move? (a) a menu button (b) the back button (c) a tab bar
28. 28.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
29. 29.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) sudden loud sounds (d) fast-flashing lights
30. 30.🔢 In a sign-up flow, which comes first: “enter the code sent” or “open the app”? (a) enter the code sent (b) open the app
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 72 px tall
    Back button: 68 px tall
    Done button: 28 px tall (a) Back (b) Done (c) Save
32. 32.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Kabir", "Riya", "Zoya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Zoya (b) Riya (c) Kabir (d) Meera
33. 33.Which of these is about UI (the look)? (a) how many taps it takes (b) how fast a task is done (c) the icon shapes (d) how users feel after
34. 34.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 44 px tall
    Send button: 64 px tall
    Next button: 68 px tall (a) Next (b) Send (c) Done
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Item → Size → Shop
    Design B: Home → Pens → Shop
37. 37.🖼️ In this wireframe (top to bottom), what is right above the list of items?
    [ menu icon ]
    [ title text ]
    [ Add button ]
    [ list of items ]
    [ big picture ] (a) Add button (b) title text (c) big picture (d) menu icon
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Match report”
    3. tap the Feed tab
    4. open “Map”
    5. tap Back
    Which screen are you on now? (a) Edit photo (b) Map (c) Feed (d) Match report
39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Help page”
    3. tap Back
    4. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
40. 40.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a final design (b) a wireframe

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