App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 823 · 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.💾 What number does this code show?
   let songs = ["Rain", "Ocean", "Monsoon"];
   songs.push("Kites");
   show(songs.length);
2. 2.True or false: space between buttons is poor button design. (a) True (b) False
3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Match report”
   2. open “Friend list”
   3. tap the Lessons tab
   4. open “Match report”
   Which screen are you on now? (a) Quiz (b) Lessons (c) Match report (d) Friend list
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Match report”
   2. tap the Search tab
   3. open “Edit photo”
   Which screen are you on now? (a) Search (b) Match report (c) Edit photo (d) Home
5. 5.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “see the final score”? (a) tap “Start quiz” (b) see the final score
6. 6.True or false: buttons almost touching is poor button design. (a) False (b) True
7. 7.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ top bar ]
   [ big picture ]
   [ Add button ]
   [ filter buttons ]
   [ list of items ] (a) Add button (b) list of items (c) filter buttons (d) big picture
8. 8.💾 What number does this code show?
   let lives = 6;
   lives = lives - 5;
   lives = lives + 2;
   show(lives);
9. 9.🔍 Which is the odd one out? (a) the icon shapes (b) the theme colours (c) the button colours (d) how fast a task is done
10. 10.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
11. 11.Which of these is true of a wireframe? (a) uses plain grey boxes (b) has the real colours (c) uses the final pictures (d) shows the real fonts
12. 12.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
13. 13.💾 Saving data in the cloud lets you ___. (a) never need a password (b) shrink the app (c) use it on any device (d) skip the internet
14. 14.🔘 Is this good or poor button design: strong colour contrast? (a) good design (b) poor design
15. 15.Which of these fits saving in the cloud? (a) a class leaderboard (b) the sound on/off setting (c) notes to read offline (d) a draft you are typing
16. 16.🔢 In a food-order flow, which comes LAST? (a) add it to the cart (b) pay for the order (c) pick a dish (d) track the order
17. 17.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the phone settings (c) a random page (d) the last app used
18. 18.Which of these is true of a menu button? (a) goes to the last screen (b) shows 3 to 5 icons (c) hides extra links (d) switches main sections
19. 19.Which of these is true of a final design? (a) has no real colours (b) shows where things go (c) has the real colours (d) uses plain grey boxes
20. 20.🔢 In a food-order flow, which comes FIRST? (a) track the order (b) pay for the order (c) open the menu (d) pick a dish
21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Chat tab
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
22. 22.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) inside a button (c) at the bottom (d) in the middle
23. 23.Which colour pair is easy to read? (a) dark blue on white (b) yellow on white (c) red on green (d) dark blue on black
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Home tab
    Which screen are you on now? (a) Search (b) Friend list (c) Profile (d) Home
25. 25.🖼️ In this wireframe (top to bottom), what is right above the list of items?
    [ filter buttons ]
    [ Save button ]
    [ list of items ]
    [ tab bar ]
    [ top bar ] (a) filter buttons (b) tab bar (c) top bar (d) Save button
26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Score card”
    3. open “Video”
    4. tap the Me tab
    Which screen are you on now? (a) Video (b) Me (c) Lessons (d) Score card
27. 27.True or false: a final design has no real colours. (a) False (b) True
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Profile tab
    3. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
29. 29.🔀 What is a user flow? (a) the path through screens (b) a colour theme (c) a type of font (d) a charging cable
30. 30.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Confirm → Cart → Item → Shop
    Design B: Home → Pay → Pens → Cart (a) Design A (b) Design B
31. 31.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
32. 32.True or false: your last game level fits saving in the cloud. (a) True (b) False
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Offers
    Design B: Home → Results → Size → Cart → Item → Shop → Offers
34. 34.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) the back button (c) a tab bar
35. 35.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Menu → Search → Pens → Cart → Item
    Design B: Home → Address → Shop → Confirm → Offers → Pens
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Caption: 17 px
    Title: 14 px
    Label: 15 px
    Hint: 14 px
38. 38.Which of these is about UX (the experience)? (a) the button colours (b) how fast a task is done (c) the icon shapes (d) the font size
39. 39.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ menu icon ]
    [ top bar ]
    [ tab bar ]
    [ search box ]
    [ big picture ] (a) tab bar (b) big picture (c) menu icon (d) top bar
40. 40.🔢 In a food-order flow, what comes right after “open the menu”? (a) check the cart (b) pay for the order (c) add it to the cart (d) pick a dish

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