App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 231 · 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 final design? (a) is a quick sketch (b) shows where things go (c) has the real colours (d) uses plain grey boxes
2. 2.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
3. 3.💾 What does this code show? (Positions start at 0.)
   let friends = ["Arjun", "Kabir", "Meera"];
   show(friends[2]); (a) Meera (b) Kabir (c) Arjun
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
5. 5.Which of these is true of a wireframe? (a) shows where things go (b) looks like the real app (c) uses the final pictures (d) has the real colours
6. 6.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Results → Pens → Size → Pay → Address → Offers
   Design B: Home → Menu → Results → Cart → Pay
7. 7.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) strong colour contrast (d) labels on every icon
8. 8.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Size → Pens
   Design B: Home → Pay → Item → Shop → Search → Menu (a) Design B (b) Design A
9. 9.🖼️ In this wireframe (top to bottom), what is right below the Add button?
   [ menu icon ]
   [ Add button ]
   [ Save button ]
   [ title text ]
   [ top bar ] (a) menu icon (b) top bar (c) title text (d) Save button
10. 10.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) that tab’s main screen (c) the last app used (d) the phone settings
11. 11.🎨 UI stands for user ___. (a) internet (b) input (c) idea (d) interface
12. 12.Which of these is true of a final design? (a) has no real colours (b) shows where things go (c) is a quick sketch (d) shows the real fonts
13. 13.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UI but poor UX (c) no UI at all (d) good UX but poor UI
14. 14.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ search box ]
    [ filter buttons ]
    [ title text ]
    [ top bar ] (a) top bar (b) title text (c) search box
15. 15.Which of these is about UI (the look)? (a) how many taps it takes (b) how users feel after (c) how easy sign-up is (d) the font size
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Edit photo”
    3. tap Back
    4. tap Back
    5. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Lessons tab
    3. tap the Lessons tab
    4. open “Map”
    5. open “Badges”
    Which screen are you on now? (a) Lessons (b) Badges (c) Map (d) Score card
18. 18.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a tab bar (c) a menu button
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Title: 13 px
    Menu: 16 px
    Body text: 17 px (a) Body text (b) Title (c) Caption (d) Menu
20. 20.🖼️ How many parts (boxes) does this wireframe have?
    [ filter buttons ]
    [ list of items ]
    [ menu icon ]
    [ big picture ]
    [ Save button ]
21. 21.Which of these fits saving on the phone? (a) the sound on/off setting (b) photos on two devices (c) chat messages to friends (d) a shared to-do list
22. 22.💾 What does this code show? (Positions start at 0.)
    let songs = ["Ocean", "Kites", "Sunrise", "Rain", "Stars"];
    show(songs[0]); (a) Sunrise (b) Rain (c) Kites (d) Ocean
23. 23.💾 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
24. 24.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap Back
    3. open “Score card”
    4. tap Back
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
26. 26.Which of these is about UI (the look)? (a) how easy sign-up is (b) how fast a task is done (c) whether users get lost (d) the theme colours
27. 27.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
28. 28.Which of these is true of a wireframe? (a) looks like the real app (b) shows the real fonts (c) has the real colours (d) uses plain grey boxes
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 13 px
    Footer: 13 px
30. 30.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) add a filter (c) post the photo (d) open the camera screen
31. 31.🔍 Which is the odd one out? (a) the font size (b) the theme colours (c) the screen layout (d) how many taps it takes
32. 32.🔢 In a sign-up flow, what comes right after “type name and email”? (a) open the app (b) enter the code sent (c) tap “Sign up” (d) make a password
33. 33.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) text that can grow (d) labels on every icon
34. 34.Which colour pair is hard to read? (a) black on pale grey (b) white on black (c) white on dark green (d) light grey on white
35. 35.🔘 Our rule: buttons are at least 48 px tall. The Next button is 20 px tall. How many px taller must it be?
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Pens
    Design B: Home → Shop → Results → Cart → Confirm → Pay → Menu
37. 37.💾 Which can hold many values in order? (a) a button (b) a switch (c) a list (d) a single number
38. 38.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Shop → Search → Pay
    Design B: Home → Cart → Shop
39. 39.🔢 In a food-order flow, which comes first: “track the order” or “open the menu”? (a) track the order (b) open the menu
40. 40.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ menu icon ]
    [ tab bar ]
    [ filter buttons ]
    [ list of items ] (a) filter buttons (b) tab bar (c) menu icon (d) list of items

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