App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 393 · 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 can hold many values in order? (a) a single number (b) a list (c) a button (d) a switch
2. 2.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
3. 3.🔢 In a quiz-app flow, which comes first: “read a question” or “tap “Start quiz””? (a) tap “Start quiz” (b) read a question
4. 4.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) a bigger app (c) worse UX (d) better UX
5. 5.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) nowhere (c) at the bottom (d) inside a button
6. 6.🎨 Is this about UI or UX: whether users get lost? (a) UI (b) UX
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Lessons tab
   2. open “Edit photo”
   3. open “Friend list”
   4. tap the Quiz tab
   5. open “Edit photo”
   How many times must you tap Back to reach the main screen of this tab?
8. 8.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Search → Item → Pay → Confirm
   Design B: Home → Menu → Search
9. 9.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) write a caption (c) take the photo (d) add a filter
10. 10.True or false: a draft you are typing fits saving in the cloud. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) the theme colours (b) the button colours (c) how fast a task is done (d) the screen layout
12. 12.🔍 Which is the odd one out? (a) the button colours (b) the font size (c) whether users get lost (d) the screen layout
13. 13.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ search box ]
    [ Save button ]
    [ Add button ]
    [ big picture ]
    [ filter buttons ] (a) big picture (b) filter buttons (c) Save button (d) search box
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Pens → Address → Confirm
    Design B: Home → Confirm → Item → Pens → Offers → Shop → Cart (a) Design B (b) Design A
15. 15.✏️ Why draw a wireframe before coding? (a) it saves data (b) changes are quick (c) it adds colours (d) it runs the app
16. 16.💾 What number does this code show?
    let songs = ["Kites", "Stars"];
    songs.push("Ocean");
    songs.push("Sunrise");
    show(songs.length);
17. 17.💾 pop() takes off the last item. What does this code show?
    let friends = ["Zoya", "Arjun", "Aman", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Meera (b) Zoya (c) Aman (d) Arjun
18. 18.🔢 In a sign-up flow, which comes LAST? (a) enter the code sent (b) open the app (c) see the home screen (d) make a password
19. 19.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ search box ]
    [ filter buttons ]
    [ Save button ]
    [ tab bar ]
    [ Add button ]
20. 20.Which of these fits saving on the phone? (a) photos on two devices (b) a shared to-do list (c) the sound on/off setting (d) chat messages to friends
21. 21.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Pay → Offers → Search → Confirm
    Design B: Home → Confirm → Offers → Shop → Results → Search → Pens (a) Design A (b) Design B
22. 22.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Footer: 27 px
    Label: 18 px
    Menu: 17 px (a) Menu (b) Label (c) Title (d) Footer
24. 24.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
25. 25.💾 What does this code show? (Positions start at 0.)
    let songs = ["Kites", "Sunrise", "Ocean", "Rain", "Monsoon"];
    show(songs[0]); (a) Kites (b) Ocean (c) Sunrise (d) Rain
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Hint: 16 px
    Title: 24 px
    Footer: 12 px
    Body text: 23 px
28. 28.Which of these is true of a wireframe? (a) uses the final pictures (b) has the real colours (c) looks like the real app (d) shows where things go
29. 29.🌗 Is black on pale grey easy or hard to read on a button? (a) easy to read (b) hard to read
30. 30.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) post the photo (c) add a filter (d) open the camera screen
31. 31.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) add a filter (b) write a caption
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Quiz tab
    3. tap the Me tab
    4. open “Badges”
    5. open “Video”
    Which screen are you on now? (a) Badges (b) Match report (c) Video (d) Lessons
33. 33.True or false: icons with no meaning is poor button design. (a) False (b) True
34. 34.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) see if it is right (c) see the final score (d) pick an answer
35. 35.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 48 px tall
    Back button: 44 px tall
    Done button: 36 px tall
    Next button: 56 px tall
36. 36.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ title text ]
    [ tab bar ]
    [ list of items ]
    [ big picture ]
    [ Save button ] (a) list of items (b) tab bar (c) big picture (d) Save button
37. 37.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
38. 38.💾 What number does this code show?
    let friends = ["Kabir", "Aman"];
    friends.push("Riya");
    show(friends.length);
39. 39.True or false: how easy sign-up is is about UI (the look). (a) True (b) False
40. 40.True or false: how easy sign-up is is about UX (the experience). (a) True (b) False

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