App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 599 · 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.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Chat tab
   2. open “Friend list”
   3. tap the Settings tab
   4. open “Map”
   Which screen are you on now? (a) Map (b) Friend list (c) Feed (d) Chat
2. 2.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
3. 3.🌗 Is red on green easy or hard to read on a button? (a) hard to read (b) easy to read
4. 4.True or false: a wireframe uses plain grey boxes. (a) False (b) True
5. 5.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
6. 6.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) perfect UX (c) no UI at all (d) good UI but poor UX
7. 7.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
8. 8.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ tab bar ]
   [ menu icon ]
   [ top bar ]
   [ title text ] (a) tab bar (b) menu icon (c) list of items (d) title text
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Confirm → Search → Shop → Address → Offers
   Design B: Home → Confirm → Menu → Pay → Item
10. 10.🔘 Our rule: buttons are at least 48 px tall. The Send button is 24 px tall. How many px taller must it be?
11. 11.🎨 Who should you test the UX with? (a) nobody (b) only yourself (c) the app icon (d) real users
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Menu → Item → Cart → Pay → Search
    Design B: Home → Pay → Search → Menu → Confirm → Shop
13. 13.💾 What number does this code show?
    let lives = 3;
    lives = lives - 1;
    lives = lives + 2;
    show(lives);
14. 14.🎨 Fewer taps to finish a task usually means ___. (a) worse UX (b) more colours (c) better UX (d) a bigger app
15. 15.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
16. 16.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
17. 17.🌗 Is yellow on white easy or hard to read on a button? (a) hard to read (b) easy to read
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Hint: 21 px
    Menu: 17 px
    Footer: 12 px
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Help page”
    3. tap Back
    4. tap Back
    5. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
20. 20.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) read a question (b) see the final score (c) tap “Start quiz” (d) see if it is right
21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Help page”
    4. tap Back
    5. tap the Settings tab
    Which screen are you on now? (a) Map (b) Feed (c) Settings (d) Help page
22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Score card”
    3. tap Back
    4. tap Back
    5. tap the Chat tab
    Which screen are you on now? (a) Score card (b) Chat (c) Feed (d) Match report
23. 23.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
24. 24.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
25. 25.🔍 Which is the odd one out? (a) the screen layout (b) the font size (c) the button colours (d) how easy sign-up is
26. 26.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ filter buttons ]
    [ Add button ]
    [ menu icon ]
    [ tab bar ] (a) Add button (b) list of items (c) tab bar (d) filter buttons
27. 27.True or false: the screen layout is about UI (the look). (a) True (b) False
28. 28.True or false: the icon shapes is about UI (the look). (a) False (b) True
29. 29.🖼️ How many parts (boxes) does this wireframe have?
    [ filter buttons ]
    [ menu icon ]
    [ Add button ]
    [ tab bar ]
    [ Save button ]
30. 30.💾 What number does this code show?
    let score = 7;
    score = score - 1;
    score = score + 5;
    show(score);
31. 31.🔘 Our rule: buttons are at least 48 px tall. The Next button is 40 px tall. How many px taller must it be?
32. 32.✏️ What is a wireframe? (a) the finished app (b) a simple screen sketch (c) a charging cable (d) a type of password
33. 33.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
34. 34.Which of these is about UX (the experience)? (a) the icon shapes (b) the screen layout (c) the font size (d) how easy sign-up is
35. 35.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
36. 36.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) fast-flashing lights
37. 37.Which of these is true of the back button? (a) switches main sections (b) goes to the last screen (c) opens a list of pages (d) shows 3 to 5 icons
38. 38.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
39. 39.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Menu → Offers → Search → Pens → Item
    Design B: Home → Shop → Cart → Search → Pay (a) Design B (b) Design A
40. 40.🔢 In a photo-post flow, which comes first: “write a caption” or “post the photo”? (a) post the photo (b) write a caption

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