App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 88 · 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 the shorter design save?
   Design A: Home → Pens → Size → Menu → Offers → Search → Pay
   Design B: Home → Search → Item → Menu → Shop
2. 2.Which of these is true of a wireframe? (a) shows the real fonts (b) uses the final pictures (c) is a quick sketch (d) looks like the real app
3. 3.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ Add button ]
   [ tab bar ]
   [ top bar ]
   [ menu icon ] (a) Add button (b) menu icon (c) tab bar (d) top bar
4. 4.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Offers → Confirm → Pay
   Design B: Home → Pens → Address → Pay → Shop → Menu
6. 6.True or false: strong colour contrast is good button design. (a) False (b) True
7. 7.💾 Saving data in the cloud lets you ___. (a) never need a password (b) use it on any device (c) shrink the app (d) skip the internet
8. 8.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) see the home screen (c) tap “Sign up” (d) enter the code sent
9. 9.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Home tab
    3. tap the Profile tab
    4. tap the Search tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
11. 11.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) big touch targets (d) icons with no labels
12. 12.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 64 px tall
    Help button: 56 px tall
    Save button: 52 px tall
    Send button: 32 px tall (a) Help (b) Send (c) Next (d) Save
13. 13.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) add it to the cart (c) pick a dish (d) pay for the order
14. 14.🔢 In a sign-up flow, which comes first: “open the app” or “tap “Sign up””? (a) open the app (b) tap “Sign up”
15. 15.Which of these fits saving on the phone? (a) photos on two devices (b) notes to read offline (c) a shared to-do list (d) a class leaderboard
16. 16.True or false: whether users get lost is about UI (the look). (a) False (b) True
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Score card”
    3. open “Badges”
    4. open “Match report”
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
18. 18.🔢 In a quiz-app flow, which comes first: “read a question” or “tap “Start quiz””? (a) tap “Start quiz” (b) read a question
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Badges”
    3. tap the Me tab
    4. open “Video”
    5. tap Back
    Which screen are you on now? (a) Badges (b) Edit photo (c) Me (d) Video
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) tiny tap areas (d) sudden loud sounds
21. 21.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) open the camera screen (c) add a filter (d) post the photo
22. 22.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
23. 23.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
25. 25.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ menu icon ]
    [ search box ]
    [ big picture ]
    [ list of items ]
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Badges”
    Which screen are you on now? (a) Badges (b) Search (c) Home (d) Friend list
27. 27.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) the app is closed (c) the phone is lost (d) you send a message
28. 28.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ top bar ]
    [ tab bar ]
    [ search box ]
    [ Add button ]
    [ Save button ]
    [ big picture ] (a) big picture (b) top bar (c) search box (d) tab bar
29. 29.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pay → Results → Offers → Shop → Pens → Search
    Design B: Home → Search → Item → Confirm → Address → Pens
31. 31.True or false: a wireframe shows the real fonts. (a) True (b) False
32. 32.True or false: a clear word like Save is poor button design. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Caption: 9 px
    Title: 20 px (a) Caption (b) Title (c) Footer
34. 34.🔘 Our rule: buttons are at least 48 px tall. The Next button is 44 px tall. How many px taller must it be?
35. 35.True or false: how easy sign-up is is about UX (the experience). (a) False (b) True
36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Map”
    3. tap the Feed tab
    4. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
37. 37.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ top bar ]
    [ menu icon ]
    [ Add button ]
    [ Save button ]
    [ title text ]
    [ big picture ] (a) Save button (b) big picture (c) Add button (d) menu icon
38. 38.True or false: photos on two devices fits saving on the phone. (a) True (b) False
39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Map”
    4. tap the Lessons tab
    5. tap the Quiz tab
    Which screen are you on now? (a) Map (b) Quiz (c) Match report (d) Lessons
40. 40.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a phone case (c) a 3D printer (d) a microphone

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