App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 647 · 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.True or false: a wireframe is a quick sketch. (a) False (b) True
2. 2.🔢 In a sign-up flow, what comes right after “make a password”? (a) tap “Sign up” (b) open the app (c) see the home screen (d) enter the code sent
3. 3.Which of these is true of a wireframe? (a) shows the real fonts (b) looks like the real app (c) uses the final pictures (d) uses plain grey boxes
4. 4.🔢 In a sign-up flow, which comes first: “open the app” or “see the home screen”? (a) open the app (b) see the home screen
5. 5.🔢 In a photo-post flow, which comes LAST? (a) open the camera screen (b) write a caption (c) post the photo (d) add a filter
6. 6.Which of these is true of a tab bar? (a) goes to the last screen (b) undoes one move (c) opens a list of pages (d) shows 3 to 5 icons
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 11 px
   Menu: 24 px
   Footer: 17 px
   Hint: 17 px
   Label: 21 px
8. 8.💾 pop() takes off the last item. What does this code show?
   let songs = ["Rain", "Sunrise", "Monsoon", "Ocean", "Kites"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Sunrise (b) Monsoon (c) Rain (d) Ocean
9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Friend list”
   2. tap the Home tab
   3. open “Map”
   4. tap the Home tab
   5. tap the Profile tab
   Which screen are you on now? (a) Map (b) Friend list (c) Profile (d) Home
10. 10.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
11. 11.Which of these is about UI (the look)? (a) how fast a task is done (b) how users feel after (c) whether users get lost (d) the font size
12. 12.🎨 UI stands for user ___. (a) internet (b) idea (c) input (d) interface
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Offers
    Design B: Home → Pay → Offers → Size → Menu → Shop (a) Design B (b) Design A
14. 14.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ title text ]
    [ top bar ]
    [ Add button ]
    [ search box ]
    [ list of items ]
    [ Save button ] (a) top bar (b) Save button (c) list of items (d) title text
15. 15.Which of these is about UX (the experience)? (a) the screen layout (b) the button colours (c) how easy sign-up is (d) the icon shapes
16. 16.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 48 px tall
    Send button: 60 px tall
    Start button: 28 px tall (a) Save (b) Send (c) Start
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Body text: 18 px
    Title: 19 px
    Caption: 11 px (a) Footer (b) Title (c) Caption (d) Body text
18. 18.🎨 Is this about UI or UX: the icon shapes? (a) UX (b) UI
19. 19.Which colour pair is easy to read? (a) red on green (b) white on dark green (c) dark blue on black (d) yellow on white
20. 20.Which of these is about UX (the experience)? (a) how many taps it takes (b) the font size (c) the screen layout (d) the button colours
21. 21.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ top bar ]
    [ Add button ]
    [ tab bar ]
    [ search box ]
    [ big picture ] (a) search box (b) big picture (c) tab bar (d) Add button
22. 22.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) see the final score (c) read a question (d) pick an answer
23. 23.✏️ What is the easiest way to draw a first wireframe? (a) a 3D printer (b) a phone case (c) pencil and paper (d) a microphone
24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Score card”
    3. open “Edit photo”
    4. open “Score card”
    Which screen are you on now? (a) Score card (b) Edit photo (c) Lessons (d) Quiz
25. 25.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
26. 26.Which of these fits saving in the cloud? (a) notes to read offline (b) chat messages to friends (c) your last game level (d) the sound on/off setting
27. 27.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
28. 28.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Cart → Results → Size → Shop → Menu
    Design B: Home → Shop → Cart → Menu
30. 30.🧭 Which part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
31. 31.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
32. 32.💾 In most code, the first item of a list is at position ___. (a) 0 (b) 2 (c) 10 (d) 1
33. 33.True or false: the theme colours is about UI (the look). (a) False (b) True
34. 34.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
35. 35.Which of these is true of a final design? (a) uses plain grey boxes (b) has the real colours (c) shows where things go (d) is a quick sketch
36. 36.Which of these is about UI (the look)? (a) how fast a task is done (b) how users feel after (c) how many taps it takes (d) the screen layout
37. 37.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
38. 38.🧭 Which part of navigation goes to the last screen? (a) a menu button (b) the back button (c) a tab bar
39. 39.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 48 px tall
    Help button: 36 px tall
    Back button: 52 px tall (a) Save (b) Back (c) Help
40. 40.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Shop → Pens → Confirm
    Design B: Home → Search → Menu → Pay → Item → Cart → Confirm (a) Design A (b) Design B

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