App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 391 · 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 fits saving on the phone? (a) notes to read offline (b) photos on two devices (c) a class leaderboard (d) chat messages to friends
2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. tap the Search tab
   3. open “Help page”
   4. tap Back
   5. open “Video”
   How many times must you tap Back to reach the main screen of this tab?
3. 3.True or false: a wireframe has the real colours. (a) False (b) True
4. 4.True or false: the sound on/off setting fits saving in the cloud. (a) False (b) True
5. 5.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
6. 6.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ Add button ]
   [ title text ]
   [ Save button ]
   [ tab bar ]
   [ top bar ] (a) Save button (b) tab bar (c) top bar (d) Add button
7. 7.🔍 Which is the odd one out? (a) how fast a task is done (b) the font size (c) how easy sign-up is (d) how many taps it takes
8. 8.🌗 Is black on pale grey easy or hard to read on a button? (a) easy to read (b) hard to read
9. 9.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
10. 10.Which of these fits saving on the phone? (a) a shared to-do list (b) chat messages to friends (c) a class leaderboard (d) your last game level
11. 11.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ filter buttons ]
    [ search box ]
    [ Add button ]
    [ list of items ]
    [ big picture ]
12. 12.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
13. 13.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) make a password (c) see the home screen (d) tap “Sign up”
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Results → Pens → Menu → Pay
    Design B: Home → Address → Item → Confirm → Shop
15. 15.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Size → Shop → Menu → Item → Pay
    Design B: Home → Confirm → Address → Offers → Results → Shop → Size
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Start button is 24 px tall. How many px taller must it be?
17. 17.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
18. 18.Which of these fits saving on the phone? (a) a shared to-do list (b) the sound on/off setting (c) chat messages to friends (d) photos on two devices
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Body text: 14 px
    Label: 16 px (a) Label (b) Menu (c) Body text
20. 20.💾 What number does this code show?
    let songs = ["Stars", "Sunrise", "Ocean", "Monsoon"];
    songs.push("Rain");
    show(songs.length);
21. 21.True or false: icons with no meaning is good button design. (a) False (b) True
22. 22.Which of these is about UX (the experience)? (a) the button colours (b) how easy sign-up is (c) the screen layout (d) the theme colours
23. 23.Which of these is true of a menu button? (a) sits at the bottom (b) switches main sections (c) opens a list of pages (d) shows 3 to 5 icons
24. 24.True or false: a wireframe has no real colours. (a) False (b) True
25. 25.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) pick an answer (b) tap “Start quiz” (c) read a question (d) see the final score
26. 26.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) open the camera screen (c) take the photo (d) add a filter
27. 27.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) tiny tap areas
28. 28.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) worse UX (c) more colours (d) better UX
29. 29.Which of these is about UX (the experience)? (a) the icon shapes (b) the button colours (c) the font size (d) how users feel after
30. 30.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Address → Shop → Results
    Design B: Home → Search → Results
32. 32.True or false: the button colours is about UX (the experience). (a) False (b) True
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Settings tab
    3. open “Match report”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
34. 34.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
35. 35.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Item → Menu → Size → Shop
    Design B: Home → Shop → Pay → Item (a) Design B (b) Design A
36. 36.Which of these is about UI (the look)? (a) how users feel after (b) whether users get lost (c) how many taps it takes (d) the screen layout
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Save button is 28 px tall. How many px taller must it be?
38. 38.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
39. 39.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Address → Search → Pay
    Design B: Home → Shop → Menu → Address → Confirm → Pens (a) Design B (b) Design A
40. 40.True or false: “text that can grow” makes the app harder to use. (a) True (b) False

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students