App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 310 · 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) shows where things go (b) has no real colours (c) uses the final pictures (d) is a quick sketch
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Send button: 40 px tall
   Done button: 52 px tall
   Save button: 72 px tall
   Help button: 60 px tall (a) Send (b) Help (c) Save (d) Done
3. 3.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
4. 4.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) good UI but poor UX (c) no UI at all (d) perfect UX
5. 5.🖼️ In this wireframe (top to bottom), what is right above the list of items?
   [ tab bar ]
   [ title text ]
   [ top bar ]
   [ Save button ]
   [ list of items ]
   [ filter buttons ] (a) tab bar (b) Save button (c) top bar (d) title text
6. 6.🧭 Which part of navigation hides extra links? (a) a tab bar (b) a menu button (c) the back button
7. 7.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) sudden loud sounds (d) fast-flashing lights
8. 8.🔍 Which is the odd one out? (a) the screen layout (b) how fast a task is done (c) how easy sign-up is (d) how many taps it takes
9. 9.🔢 In a photo-post flow, what comes right after “write a caption”? (a) open the camera screen (b) add a filter (c) take the photo (d) post the photo
10. 10.Which of these fits saving in the cloud? (a) notes to read offline (b) your last game level (c) photos on two devices (d) the sound on/off setting
11. 11.Which of these is true of a tab bar? (a) hides extra links (b) opens a list of pages (c) undoes one move (d) sits at the bottom
12. 12.True or false: a wireframe shows where things go. (a) False (b) True
13. 13.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
14. 14.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) a tab bar (c) the back button
15. 15.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these is about UI (the look)? (a) how easy sign-up is (b) how users feel after (c) the screen layout (d) how many taps it takes
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Friend list”
    3. open “Help page”
    Which screen are you on now? (a) Friend list (b) Map (c) Lessons (d) Help page
18. 18.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 60 px tall
    Help button: 28 px tall
    Send button: 56 px tall (a) Send (b) Save (c) Help
20. 20.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ big picture ]
    [ menu icon ]
    [ list of items ]
    [ Add button ] (a) menu icon (b) big picture (c) Add button
21. 21.🔍 Which is the odd one out? (a) how users feel after (b) how easy sign-up is (c) the icon shapes (d) how many taps it takes
22. 22.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
23. 23.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
24. 24.🔍 Which is the odd one out? (a) the theme colours (b) how many taps it takes (c) the icon shapes (d) the button colours
25. 25.💾 What does this code show? (Positions start at 0.)
    let notes = ["Hindi", "Music", "Art", "Sports", "Maths"];
    show(notes[0]); (a) Sports (b) Hindi (c) Art (d) Music
26. 26.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ search box ]
    [ top bar ]
    [ filter buttons ]
    [ menu icon ]
    [ title text ]
    [ big picture ] (a) big picture (b) search box (c) title text (d) menu icon
27. 27.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Address → Shop → Pay → Results
    Design B: Home → Offers → Results (a) Design A (b) Design B
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Search tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
29. 29.🌗 Is white on dark green easy or hard to read on a button? (a) hard to read (b) easy to read
30. 30.Which colour pair is easy to read? (a) black on yellow (b) pale pink on white (c) red on green (d) yellow on white
31. 31.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
32. 32.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) text that can grow (d) big touch targets
33. 33.💾 pop() takes off the last item. What does this code show?
    let songs = ["Kites", "Stars", "Sunrise"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Stars (b) Sunrise (c) Kites
34. 34.💾 Saving data in the cloud lets you ___. (a) use it on any device (b) shrink the app (c) skip the internet (d) never need a password
35. 35.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
36. 36.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ filter buttons ]
    [ big picture ]
    [ top bar ] (a) big picture (b) tab bar (c) filter buttons (d) top bar
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
38. 38.🔢 In a photo-post flow, what comes right after “add a filter”? (a) write a caption (b) post the photo (c) open the camera screen (d) take the photo
39. 39.✏️ Why draw a wireframe before coding? (a) it saves data (b) changes are quick (c) it runs the app (d) it adds colours
40. 40.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Cart → Item → Offers → Confirm → Menu
    Design B: Home → Confirm → Pens → Item (a) Design A (b) Design B

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