App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 818 · 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 of these is about UI (the look)? (a) how users feel after (b) the font size (c) how easy sign-up is (d) how fast a task is done
2. 2.Which of these is true of a tab bar? (a) hides extra links (b) undoes one move (c) shows 3 to 5 icons (d) goes to the last screen
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 23 px
   Footer: 23 px
   Label: 23 px
   Menu: 23 px
   Hint: 23 px
4. 4.🎨 Who should you test the UX with? (a) nobody (b) the app icon (c) only yourself (d) real users
5. 5.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) sudden loud sounds (d) icons with no labels
6. 6.💾 What number does this code show?
   let notes = ["Sports", "Art", "Music"];
   notes.push("Maths");
   show(notes.length);
7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Map”
   2. tap Back
   3. tap the Home tab
   4. open “Edit photo”
   Which screen are you on now? (a) Map (b) Search (c) Edit photo (d) Home
8. 8.🔢 In a photo-post flow, which comes first: “open the camera screen” or “write a caption”? (a) write a caption (b) open the camera screen
9. 9.🧭 What does the back button usually do? (a) deletes the page (b) closes all apps (c) opens settings (d) goes to the last screen
10. 10.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
11. 11.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ filter buttons ]
    [ big picture ]
    [ top bar ]
    [ Add button ] (a) top bar (b) big picture (c) filter buttons
12. 12.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
13. 13.🎨 UI stands for user ___. (a) interface (b) idea (c) internet (d) input
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
15. 15.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) an error (c) delete this (d) a closed app
16. 16.🔢 In a food-order flow, which comes first: “open the menu” or “pay for the order”? (a) open the menu (b) pay for the order
17. 17.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Search
    Design B: Home → Menu → Cart → Offers → Results → Shop (a) Design A (b) Design B
18. 18.💾 What number does this code show?
    let points = 7;
    points = points - 5;
    points = points + 2;
    show(points);
19. 19.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) pick a dish (c) open the menu (d) add it to the cart
20. 20.Which of these fits saving in the cloud? (a) a draft you are typing (b) the sound on/off setting (c) notes to read offline (d) a shared to-do list
21. 21.True or false: a final design uses the final pictures. (a) True (b) False
22. 22.Which of these is about UI (the look)? (a) how easy sign-up is (b) how users feel after (c) the theme colours (d) how fast a task is done
23. 23.Which colour pair is hard to read? (a) white on black (b) yellow on white (c) black on yellow (d) black on pale grey
24. 24.Which of these is true of a final design? (a) is a quick sketch (b) looks like the real app (c) has no real colours (d) uses plain grey boxes
25. 25.True or false: how many taps it takes is about UX (the experience). (a) False (b) True
26. 26.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Sports", "Science", "Music"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Science (c) Sports (d) Music
27. 27.🔢 In a sign-up flow, which comes first: “see the home screen” or “open the app”? (a) see the home screen (b) open the app
28. 28.🔍 Which is the odd one out? (a) how users feel after (b) how fast a task is done (c) how easy sign-up is (d) the button colours
29. 29.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
30. 30.Which colour pair is easy to read? (a) red on green (b) white on black (c) pale pink on white (d) dark blue on black
31. 31.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) shows the real fonts (d) uses plain grey boxes
32. 32.Which of these is true of a menu button? (a) sits at the bottom (b) hides extra links (c) switches main sections (d) shows 3 to 5 icons
33. 33.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 68 px tall
    Help button: 64 px tall
    Cancel button: 64 px tall
    Done button: 24 px tall (a) Done (b) Help (c) Cancel (d) Back
34. 34.✏️ What is the easiest way to draw a first wireframe? (a) a 3D printer (b) a phone case (c) a microphone (d) pencil and paper
35. 35.True or false: a big, easy tap area is poor button design. (a) False (b) True
36. 36.🔢 In a food-order flow, what comes right after “open the menu”? (a) check the cart (b) pay for the order (c) pick a dish (d) add it to the cart
37. 37.💾 What does this code show? (Positions start at 0.)
    let notes = ["Art", "Sports", "Music"];
    show(notes[0]); (a) Art (b) Sports (c) Music
38. 38.Which of these is about UX (the experience)? (a) the theme colours (b) the screen layout (c) how easy sign-up is (d) the icon shapes
39. 39.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ search box ]
    [ filter buttons ]
    [ Save button ]
    [ top bar ] (a) search box (b) top bar (c) Save button
40. 40.💾 In most code, the first item of a list is at position ___. (a) 0 (b) 2 (c) 10 (d) 1

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