App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 956 · 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 should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
2. 2.Which of these fits saving on the phone? (a) chat messages to friends (b) your last game level (c) a shared to-do list (d) a class leaderboard
3. 3.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) a dead end (c) a clear next step (d) the same screen
4. 4.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) an error (c) a picture goes here (d) a closed app
5. 5.💾 Data saved only on the phone is lost when ___. (a) the phone is lost (b) you send a message (c) the screen turns off (d) the app is closed
6. 6.💾 pop() takes off the last item. What does this code show?
   let notes = ["Sports", "Maths", "Science"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Science (b) Maths (c) Sports
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Edit photo”
   2. tap Back
   3. open “Badges”
   4. open “Friend list”
   Which screen are you on now? (a) Lessons (b) Edit photo (c) Badges (d) Friend list
8. 8.True or false: strong colour contrast is good button design. (a) True (b) False
9. 9.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Pay → Confirm → Pens → Cart → Menu → Address
   Design B: Home → Results → Cart → Menu → Pay (a) Design A (b) Design B
10. 10.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) text that can grow (c) icons with no labels (d) colour as the only clue
12. 12.Which of these is true of a menu button? (a) sits at the bottom (b) hides extra links (c) undoes one move (d) shows 3 to 5 icons
13. 13.🔢 In a sign-up flow, which comes FIRST? (a) type name and email (b) see the home screen (c) make a password (d) open the app
14. 14.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) icons with no labels
16. 16.True or false: the button colours is about UX (the experience). (a) True (b) False
17. 17.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
18. 18.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ tab bar ]
    [ search box ]
    [ menu icon ]
    [ big picture ]
    [ top bar ]
19. 19.🔀 What is a user flow? (a) the path through screens (b) a charging cable (c) a type of font (d) a colour theme
20. 20.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) tab bar (c) shortcut (d) dead end
21. 21.Which of these is true of a final design? (a) has no real colours (b) looks like the real app (c) uses plain grey boxes (d) is a quick sketch
22. 22.🔘 Is this good or poor button design: strong colour contrast? (a) good design (b) poor design
23. 23.✏️ Why draw a wireframe before coding? (a) it runs the app (b) it adds colours (c) it saves data (d) changes are quick
24. 24.🔢 In a photo-post flow, which comes first: “take the photo” or “add a filter”? (a) add a filter (b) take the photo
25. 25.True or false: a draft you are typing fits saving in the cloud. (a) False (b) True
26. 26.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) pick an answer (c) see the final score (d) read a question
27. 27.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 72 px tall
    Next button: 48 px tall
    Help button: 24 px tall (a) Send (b) Next (c) Help
28. 28.Which of these fits saving in the cloud? (a) notes to read offline (b) the sound on/off setting (c) your last game level (d) photos on two devices
29. 29.Which of these is about UX (the experience)? (a) the icon shapes (b) the screen layout (c) the button colours (d) how many taps it takes
30. 30.Which of these fits saving on the phone? (a) chat messages to friends (b) photos on two devices (c) a shared to-do list (d) a draft you are typing
31. 31.Which of these is about UI (the look)? (a) how users feel after (b) the button colours (c) how many taps it takes (d) how fast a task is done
32. 32.Which of these is true of a final design? (a) uses the final pictures (b) shows where things go (c) uses plain grey boxes (d) has no real colours
33. 33.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
34. 34.💾 What number does this code show?
    let score = 4;
    score = score - 1;
    score = score + 2;
    show(score);
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Shop → Cart
    Design B: Home → Results → Pens
36. 36.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
37. 37.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 60 px tall
    Back button: 40 px tall
    Cancel button: 44 px tall
    Help button: 56 px tall
38. 38.Which of these is true of a tab bar? (a) undoes one move (b) goes to the last screen (c) hides extra links (d) switches main sections
39. 39.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ title text ]
    [ menu icon ]
    [ list of items ]
    [ search box ]
    [ Save button ]
    [ top bar ] (a) top bar (b) Save button (c) title text (d) list of items
40. 40.True or false: photos on two devices fits saving in the cloud. (a) True (b) False

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students