App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 52 · 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.Which of these is true of a wireframe? (a) shows where things go (b) shows the real fonts (c) looks like the real app (d) has the real colours
2. 2.Which of these is about UI (the look)? (a) the button colours (b) how fast a task is done (c) how easy sign-up is (d) how users feel after
3. 3.Which of these is about UI (the look)? (a) how fast a task is done (b) how easy sign-up is (c) whether users get lost (d) the theme colours
4. 4.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Match report”
   2. open “Edit photo”
   3. tap the Me tab
   How many times must you tap Back to reach the main screen of this tab?
5. 5.💾 What is a variable? (a) a named box for a value (b) a type of screen (c) a phone setting (d) a picture
6. 6.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Search tab
   2. tap the Search tab
   3. open “Map”
   4. tap Back
   Which screen are you on now? (a) Search (b) Home (c) Map (d) Profile
7. 7.🖼️ In this wireframe (top to bottom), what is right above the top bar?
   [ search box ]
   [ top bar ]
   [ Add button ]
   [ filter buttons ]
   [ menu icon ] (a) filter buttons (b) search box (c) menu icon (d) Add button
8. 8.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ filter buttons ]
   [ search box ]
   [ big picture ]
   [ menu icon ] (a) search box (b) filter buttons (c) menu icon (d) big picture
9. 9.🔢 In a quiz-app flow, which comes first: “see the final score” or “tap “Start quiz””? (a) see the final score (b) tap “Start quiz”
10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Feed tab
    3. open “Score card”
    4. open “Map”
    5. tap Back
    Which screen are you on now? (a) Score card (b) Feed (c) Chat (d) Map
11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Quiz tab
    3. open “Map”
    Which screen are you on now? (a) Quiz (b) Lessons (c) Map (d) Friend list
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
13. 13.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ tab bar ]
    [ title text ]
    [ filter buttons ]
    [ top bar ]
    [ big picture ] (a) big picture (b) tab bar (c) top bar (d) title text
14. 14.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) big touch targets (d) colour as the only clue
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 52 px tall
    Next button: 36 px tall
    Back button: 68 px tall (a) Next (b) Help (c) Back
16. 16.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 40 px tall
    Start button: 36 px tall
    Next button: 56 px tall
17. 17.True or false: a wireframe looks like the real app. (a) False (b) True
18. 18.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a clear next step (c) a random page (d) a dead end
19. 19.🔢 In a quiz-app flow, which comes LAST? (a) pick an answer (b) read a question (c) tap “Start quiz” (d) see the final score
20. 20.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) icons with no labels
21. 21.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) see if it is right (c) pick an answer (d) read a question
22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Friend list”
    3. open “Badges”
    4. tap Back
    5. open “Map”
    Which screen are you on now? (a) Feed (b) Badges (c) Friend list (d) Map
23. 23.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ search box ]
    [ top bar ]
    [ big picture ] (a) Add button (b) top bar (c) big picture (d) search box
24. 24.True or false: photos on two devices fits saving in the cloud. (a) False (b) True
25. 25.Which colour pair is hard to read? (a) white on black (b) black on pale grey (c) pale pink on white (d) white on dark green
26. 26.💾 In most code, the first item of a list is at position ___. (a) 1 (b) 2 (c) 0 (d) 10
27. 27.💾 Which can hold many values in order? (a) a switch (b) a button (c) a list (d) a single number
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.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Menu → Results
    Design B: Home → Shop → Pay → Pens → Item (a) Design B (b) Design A
30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Lessons tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
31. 31.True or false: notes to read offline fits saving on the phone. (a) False (b) True
32. 32.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
33. 33.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
34. 34.True or false: a class leaderboard fits saving in the cloud. (a) True (b) False
35. 35.✏️ Why draw a wireframe before coding? (a) it adds colours (b) it saves data (c) changes are quick (d) it runs the app
36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Help page”
    Which screen are you on now? (a) Score card (b) Lessons (c) Quiz (d) Help page
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Menu → Pens → Results → Pay
    Design B: Home → Cart → Size → Shop → Menu → Confirm → Search
38. 38.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Offers
    Design B: Home → Size → Shop → Address → Offers → Pay
40. 40.Which of these is true of a wireframe? (a) uses the final pictures (b) looks like the real app (c) shows the real fonts (d) has no real colours

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