App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 206 · 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.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ top bar ]
   [ big picture ]
   [ tab bar ]
   [ title text ]
   [ Add button ] (a) Add button (b) title text (c) top bar (d) big picture
2. 2.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) a type of font (d) the path through screens
3. 3.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 68 px tall
   Save button: 52 px tall
   Back button: 72 px tall
   Send button: 40 px tall (a) Save (b) Send (c) Help (d) Back
4. 4.Which of these is about UI (the look)? (a) how easy sign-up is (b) how users feel after (c) the button colours (d) how many taps it takes
5. 5.🎨 UX stands for user ___. (a) express (b) example (c) extra (d) experience
6. 6.🧭 What does the back button usually do? (a) deletes the page (b) goes to the last screen (c) opens settings (d) closes all apps
7. 7.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
8. 8.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Item → Offers
   Design B: Home → Confirm → Cart → Search
9. 9.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Feed tab
    3. tap the Chat tab
    4. open “Map”
    5. tap Back
    Which screen are you on now? (a) Settings (b) Map (c) Chat (d) Feed
11. 11.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
12. 12.💾 What number does this code show?
    let lives = 4;
    lives = lives - 2;
    lives = lives + 4;
    show(lives);
13. 13.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Settings tab
    4. open “Badges”
    Which screen are you on now? (a) Edit photo (b) Badges (c) Chat (d) Feed
15. 15.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Science", "Music"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Music (c) Science
16. 16.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) strong colour contrast
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Label: 13 px
    Hint: 11 px
18. 18.Which colour pair is hard to read? (a) black on pale grey (b) black on yellow (c) white on black (d) yellow on white
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 32 px tall
    Send button: 52 px tall
    Save button: 56 px tall (a) Send (b) Save (c) Next
20. 20.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
21. 21.Which colour pair is hard to read? (a) dark blue on white (b) red on green (c) white on dark green (d) black on yellow
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Title: 20 px
    Menu: 26 px (a) Footer (b) Title (c) Menu
23. 23.🔘 Our rule: buttons are at least 48 px tall. The Help button is 24 px tall. How many px taller must it be?
24. 24.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ Save button ]
    [ list of items ]
    [ menu icon ]
    [ Add button ] (a) Add button (b) Save button (c) list of items
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 60 px tall
    Send button: 64 px tall
    Save button: 28 px tall (a) Send (b) Save (c) Help
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Hint: 14 px
    Menu: 23 px
27. 27.🔢 In a food-order flow, what comes right after “pick a dish”? (a) check the cart (b) add it to the cart (c) track the order (d) open the menu
28. 28.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Title: 20 px
    Label: 13 px
    Caption: 23 px (a) Menu (b) Caption (c) Label (d) Title
30. 30.💾 What number does this code show?
    let songs = ["Monsoon", "Sunrise", "Stars"];
    songs.push("Ocean");
    show(songs.length);
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 24 px tall
    Done button: 52 px tall
    Save button: 60 px tall (a) Done (b) Next (c) Save
32. 32.💾 Saving data in the cloud lets you ___. (a) skip the internet (b) shrink the app (c) never need a password (d) use it on any device
33. 33.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) tiny tap areas
34. 34.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
35. 35.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
36. 36.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 64 px tall
    Back button: 32 px tall
    Start button: 48 px tall
37. 37.True or false: a wireframe looks like the real app. (a) True (b) False
38. 38.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
39. 39.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Offers → Cart → Confirm → Size → Search
    Design B: Home → Item → Offers → Pens → Search → Menu (a) Design A (b) Design B
40. 40.Which of these is about UX (the experience)? (a) the screen layout (b) the theme colours (c) how users feel after (d) the button colours

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