App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 326 · 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 the back button? (a) switches main sections (b) undoes one move (c) shows 3 to 5 icons (d) opens a list of pages
2. 2.🔢 In a food-order flow, which comes LAST? (a) add it to the cart (b) open the menu (c) check the cart (d) track the order
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Friend list”
   2. tap Back
   3. open “Edit photo”
   4. tap Back
   5. open “Friend list”
   How many times must you tap Back to reach the main screen of this tab?
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Address → Confirm → Pens → Menu → Pay
   Design B: Home → Shop → Results → Size
5. 5.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
6. 6.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
7. 7.🖼️ In this wireframe (top to bottom), what is right below the top bar?
   [ top bar ]
   [ list of items ]
   [ search box ]
   [ Add button ]
   [ tab bar ]
   [ Save button ] (a) Save button (b) list of items (c) search box (d) Add button
8. 8.True or false: the icon shapes is about UX (the experience). (a) False (b) True
9. 9.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
10. 10.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 52 px tall
    Send button: 52 px tall
    Cancel button: 36 px tall
    Save button: 48 px tall
11. 11.Which of these is about UX (the experience)? (a) the font size (b) the icon shapes (c) how easy sign-up is (d) the screen layout
12. 12.💾 Data saved only on the phone is lost when ___. (a) the phone is lost (b) the app is closed (c) you send a message (d) the screen turns off
13. 13.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Search → Menu
    Design B: Home → Search → Size → Cart
15. 15.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 48 px tall
    Next button: 36 px tall
    Save button: 40 px tall
    Cancel button: 36 px tall
16. 16.🔢 In a photo-post flow, which comes first: “take the photo” or “open the camera screen”? (a) open the camera screen (b) take the photo
17. 17.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Badges”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
19. 19.💾 What is a variable? (a) a named box for a value (b) a phone setting (c) a type of screen (d) a picture
20. 20.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
21. 21.🔍 Which is the odd one out? (a) how users feel after (b) the theme colours (c) the button colours (d) the font size
22. 22.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
23. 23.Which colour pair is easy to read? (a) yellow on white (b) light grey on white (c) pale pink on white (d) white on dark green
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Home tab
    3. open “Badges”
    4. tap Back
    Which screen are you on now? (a) Search (b) Badges (c) Profile (d) Home
25. 25.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
26. 26.💾 pop() takes off the last item. What does this code show?
    let songs = ["Sunrise", "Kites", "Rain", "Monsoon"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Rain (b) Sunrise (c) Kites (d) Monsoon
27. 27.💾 pop() takes off the last item. What does this code show?
    let songs = ["Sunrise", "Rain", "Monsoon", "Kites", "Stars"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Sunrise (b) Rain (c) Monsoon (d) Kites
28. 28.🔢 In a sign-up flow, which comes first: “open the app” or “tap “Sign up””? (a) open the app (b) tap “Sign up”
29. 29.🎨 UX stands for user ___. (a) experience (b) example (c) express (d) extra
30. 30.🔀 What is a user flow? (a) a charging cable (b) the path through screens (c) a type of font (d) a colour theme
31. 31.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
32. 32.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Search tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
33. 33.🔢 In a photo-post flow, what comes right after “take the photo”? (a) write a caption (b) post the photo (c) open the camera screen (d) add a filter
34. 34.Which of these is about UI (the look)? (a) the theme colours (b) how users feel after (c) how easy sign-up is (d) how fast a task is done
35. 35.🔢 In a quiz-app flow, which comes FIRST? (a) read a question (b) see if it is right (c) see the final score (d) tap “Start quiz”
36. 36.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) open the menu (b) track the order (c) pay for the order (d) check the cart
37. 37.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
38. 38.💾 What does this code show? (Positions start at 0.)
    let friends = ["Meera", "Arjun", "Riya", "Kabir"];
    show(friends[2]); (a) Kabir (b) Arjun (c) Riya (d) Meera
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Menu → Item
    Design B: Home → Results → Pay → Search → Item → Address → Shop
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Hint: 10 px
    Footer: 26 px (a) Footer (b) Hint (c) Caption

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