App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 166 · 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.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Badges”
   2. tap the Profile tab
   3. tap the Home tab
   4. open “Map”
   Which screen are you on now? (a) Home (b) Badges (c) Search (d) Map
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 22 px
   Label: 22 px
   Body text: 10 px
   Hint: 20 px
   Caption: 24 px (a) Hint (b) Title (c) Body text (d) Label
3. 3.Which of these fits saving in the cloud? (a) your last game level (b) a draft you are typing (c) notes to read offline (d) chat messages to friends
4. 4.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a final design (b) a wireframe
5. 5.💾 What does this code show? (Positions start at 0.)
   let songs = ["Monsoon", "Sunrise", "Rain", "Kites"];
   show(songs[0]); (a) Rain (b) Sunrise (c) Kites (d) Monsoon
6. 6.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
7. 7.🔢 In a photo-post flow, which comes LAST? (a) open the camera screen (b) take the photo (c) post the photo (d) add a filter
8. 8.🧭 What does the back button usually do? (a) closes all apps (b) goes to the last screen (c) opens settings (d) deletes the page
9. 9.Which of these is true of a final design? (a) uses the final pictures (b) uses plain grey boxes (c) has no real colours (d) shows where things go
10. 10.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
11. 11.Which colour pair is hard to read? (a) white on dark green (b) black on yellow (c) dark blue on black (d) dark blue on white
12. 12.🔢 In a sign-up flow, which comes first: “type name and email” or “see the home screen”? (a) see the home screen (b) type name and email
13. 13.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
14. 14.Which colour pair is easy to read? (a) light grey on white (b) red on green (c) dark blue on black (d) black on yellow
15. 15.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) looks like the real app (d) shows where things go
16. 16.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
17. 17.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 24 px tall
    Send button: 72 px tall
    Save button: 48 px tall
    Back button: 64 px tall (a) Save (b) Back (c) Cancel (d) Send
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Item → Results → Pens → Pay → Shop
    Design B: Home → Item → Menu → Search (a) Design B (b) Design A
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) colour as the only clue
20. 20.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ tab bar ]
    [ top bar ]
    [ title text ]
    [ big picture ] (a) tab bar (b) top bar (c) big picture
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Caption: 22 px
    Hint: 13 px
22. 22.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Search → Pens → Confirm
    Design B: Home → Menu → Search → Results
23. 23.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a phone case (c) a microphone (d) a 3D printer
24. 24.True or false: a class leaderboard fits saving in the cloud. (a) True (b) False
25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Help page”
    3. tap the Feed tab
    4. open “Score card”
    5. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
26. 26.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
27. 27.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ menu icon ]
    [ Add button ]
    [ list of items ]
    [ search box ]
    [ big picture ]
    [ top bar ] (a) big picture (b) menu icon (c) search box (d) top bar
28. 28.True or false: how many taps it takes is about UX (the experience). (a) True (b) False
29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Feed tab
    3. open “Map”
    4. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
30. 30.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Me tab
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Caption: 21 px
    Menu: 27 px (a) Caption (b) Body text (c) Menu
33. 33.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) tap “Sign up” (c) see the home screen (d) enter the code sent
34. 34.🖼️ In this wireframe (top to bottom), what is right above the Save button?
    [ filter buttons ]
    [ search box ]
    [ title text ]
    [ Save button ]
    [ top bar ] (a) title text (b) search box (c) top bar (d) filter buttons
35. 35.💾 What number does this code show?
    let stars = 3;
    stars = stars - 1;
    stars = stars + 5;
    show(stars);
36. 36.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
37. 37.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
38. 38.💾 Which works with no internet at all? (a) a shared chat (b) data saved on the phone (c) a cloud leaderboard (d) a cloud backup
39. 39.🔢 In a food-order flow, what comes right after “pick a dish”? (a) check the cart (b) add it to the cart (c) open the menu (d) pay for the order
40. 40.🔢 In a sign-up flow, which comes first: “make a password” or “type name and email”? (a) make a password (b) type name and email

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