App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 955 · 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.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Search → Cart → Pens
   Design B: Home → Confirm → Cart → Search → Pay → Pens
2. 2.Which of these is true of a final design? (a) shows where things go (b) has no real colours (c) shows the real fonts (d) is a quick sketch
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Profile tab
   2. open “Help page”
   3. tap the Profile tab
   4. open “Score card”
   Which screen are you on now? (a) Search (b) Help page (c) Score card (d) Home
4. 4.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 3 to 5 (c) 20 (d) 10 to 12
5. 5.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Send button: 44 px tall
   Done button: 56 px tall
   Back button: 40 px tall
6. 6.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it adds colours (d) it saves data
7. 7.💾 pop() takes off the last item. What does this code show?
   let songs = ["Ocean", "Rain", "Sunrise"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Ocean (b) Sunrise (c) Rain
8. 8.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
9. 9.💾 What does this code show? (Positions start at 0.)
   let friends = ["Zoya", "Meera", "Riya", "Arjun"];
   show(friends[2]); (a) Zoya (b) Riya (c) Meera (d) Arjun
10. 10.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
11. 11.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
12. 12.True or false: a final design shows the real fonts. (a) False (b) True
13. 13.True or false: buttons almost touching is good button design. (a) True (b) False
14. 14.🎨 Is this about UI or UX: how fast a task is done? (a) UX (b) UI
15. 15.💾 Which can hold many values in order? (a) a single number (b) a switch (c) a button (d) a list
16. 16.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
17. 17.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
18. 18.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: a final design is a quick sketch. (a) True (b) False
20. 20.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 56 px tall
    Help button: 36 px tall
    Cancel button: 40 px tall
21. 21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Edit photo”
    3. open “Edit photo”
    4. tap the Settings tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
22. 22.Which of these is true of the back button? (a) switches main sections (b) shows 3 to 5 icons (c) opens a list of pages (d) goes to the last screen
23. 23.Which of these is about UI (the look)? (a) the font size (b) how easy sign-up is (c) how many taps it takes (d) how fast a task is done
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Profile tab
    3. open “Score card”
    4. open “Badges”
    Which screen are you on now? (a) Match report (b) Home (c) Score card (d) Badges
25. 25.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
    [ title text ]
    [ filter buttons ]
    [ list of items ]
    [ search box ]
    [ menu icon ]
    [ tab bar ] (a) list of items (b) tab bar (c) filter buttons (d) title text
26. 26.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) a random page (c) the phone settings (d) that tab’s main screen
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Menu → Results → Pay → Pens
    Design B: Home → Confirm → Pens → Shop → Search → Item → Offers
28. 28.True or false: a wireframe uses plain grey boxes. (a) True (b) False
29. 29.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
30. 30.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
31. 31.Which colour pair is easy to read? (a) light grey on white (b) dark blue on black (c) yellow on white (d) black on pale grey
32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Badges”
    3. open “Edit photo”
    4. open “Match report”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
33. 33.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) in the middle (c) at the bottom (d) inside a button
35. 35.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) big touch targets (d) text that can grow
36. 36.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
37. 37.💾 In most code, the first item of a list is at position ___. (a) 1 (b) 0 (c) 10 (d) 2
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Hint: 10 px
    Caption: 11 px
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Item → Shop
    Design B: Home → Results → Pens → Shop → Pay → Address → Search
40. 40.True or false: “captions on videos” helps everyone use the app. (a) True (b) False

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