App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 760 · 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.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
2. 2.🖼️ In this wireframe (top to bottom), what is right below the top bar?
   [ Save button ]
   [ top bar ]
   [ big picture ]
   [ list of items ]
   [ search box ]
   [ Add button ] (a) Save button (b) big picture (c) Add button (d) search box
3. 3.Which of these is about UX (the experience)? (a) the icon shapes (b) the theme colours (c) the button colours (d) whether users get lost
4. 4.Which of these is true of a wireframe? (a) is a quick sketch (b) shows the real fonts (c) uses the final pictures (d) has the real colours
5. 5.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
6. 6.🔢 In a quiz-app flow, which comes FIRST? (a) pick an answer (b) see the final score (c) read a question (d) tap “Start quiz”
7. 7.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) open the app (c) tap “Sign up” (d) make a password
8. 8.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
9. 9.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
10. 10.🔢 In a photo-post flow, which comes first: “write a caption” or “post the photo”? (a) write a caption (b) post the photo
11. 11.💾 pop() takes off the last item. What does this code show?
    let friends = ["Zoya", "Arjun", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Arjun (b) Zoya (c) Meera
12. 12.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
13. 13.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ top bar ]
    [ filter buttons ]
    [ Add button ]
    [ menu icon ]
    [ big picture ] (a) Add button (b) filter buttons (c) big picture (d) top bar
14. 14.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Sports", "Art"];
    show(notes[1]); (a) Maths (b) Art (c) Sports
15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Match report”
    3. open “Badges”
    4. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
16. 16.🎨 UX stands for user ___. (a) extra (b) express (c) experience (d) example
17. 17.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) at the bottom (c) in the middle (d) nowhere
18. 18.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
19. 19.✏️ Why draw a wireframe before coding? (a) it adds colours (b) it runs the app (c) it saves data (d) changes are quick
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Hint: 16 px
    Menu: 14 px
    Footer: 19 px (a) Menu (b) Title (c) Footer (d) Hint
21. 21.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
22. 22.True or false: the button colours is about UI (the look). (a) False (b) True
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 52 px tall
    Next button: 52 px tall
    Help button: 68 px tall
    Back button: 24 px tall (a) Save (b) Next (c) Back (d) Help
24. 24.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 1 (d) 10 to 12
25. 25.🔍 Which is the odd one out? (a) how easy sign-up is (b) how fast a task is done (c) the font size (d) how users feel after
26. 26.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ title text ]
    [ big picture ]
    [ Add button ]
    [ tab bar ]
    [ filter buttons ]
    [ menu icon ] (a) filter buttons (b) Add button (c) tab bar (d) big picture
27. 27.🔢 In a sign-up flow, which comes first: “open the app” or “enter the code sent”? (a) enter the code sent (b) open the app
28. 28.💾 What does this code show? (Positions start at 0.)
    let songs = ["Monsoon", "Stars", "Kites", "Ocean", "Rain"];
    show(songs[2]); (a) Kites (b) Stars (c) Ocean (d) Monsoon
29. 29.🔢 In a sign-up flow, which comes first: “type name and email” or “enter the code sent”? (a) type name and email (b) enter the code sent
30. 30.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) the screen layout (b) how users feel after (c) the button colours (d) the font size
32. 32.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) open the app (b) type name and email (c) see the home screen (d) enter the code sent
33. 33.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ search box ]
    [ Add button ]
    [ filter buttons ]
    [ big picture ]
    [ top bar ]
    [ tab bar ] (a) tab bar (b) filter buttons (c) search box (d) big picture
34. 34.🔢 In a photo-post flow, which comes FIRST? (a) write a caption (b) add a filter (c) post the photo (d) open the camera screen
35. 35.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ Save button ]
    [ big picture ]
    [ title text ]
    [ search box ] (a) title text (b) Save button (c) search box
36. 36.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) a random page (c) the phone settings (d) the last app used
37. 37.True or false: a big, easy tap area is good button design. (a) True (b) False
38. 38.Which of these is true of the back button? (a) undoes one move (b) opens a list of pages (c) sits at the bottom (d) switches main sections
39. 39.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ Save button ]
    [ menu icon ]
    [ big picture ]
    [ search box ] (a) big picture (b) search box (c) menu icon
40. 40.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Size → Item
    Design B: Home → Cart → Pay (a) Design B (b) Design A

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