App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 570 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
2. 2.Which of these is about UX (the experience)? (a) the icon shapes (b) how easy sign-up is (c) the screen layout (d) the button colours
3. 3.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) write a caption (b) add a filter
4. 4.Which colour pair is hard to read? (a) red on green (b) dark blue on white (c) black on pale grey (d) white on black
5. 5.Which of these is true of a tab bar? (a) undoes one move (b) sits at the bottom (c) goes to the last screen (d) opens a list of pages
6. 6.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
7. 7.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
8. 8.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
9. 9.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a final design (b) a wireframe
10. 10.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) delete this (c) a closed app (d) an error
11. 11.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
12. 12.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ list of items ]
    [ tab bar ]
    [ Add button ]
    [ menu icon ]
    [ Save button ]
    [ title text ] (a) Add button (b) list of items (c) menu icon (d) title text
13. 13.True or false: the font size is about UI (the look). (a) True (b) False
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Match report”
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
15. 15.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ search box ]
    [ top bar ]
    [ filter buttons ]
    [ title text ]
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Search tab
    3. tap the Search tab
    4. open “Match report”
    5. tap Back
    Which screen are you on now? (a) Home (b) Match report (c) Profile (d) Search
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap the Search tab
    3. tap the Search tab
    4. open “Map”
    5. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
18. 18.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 32 px tall. How many px taller must it be?
19. 19.Which of these is true of the back button? (a) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) opens a list of pages
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Body text: 16 px
    Title: 9 px
    Footer: 16 px
    Menu: 26 px (a) Caption (b) Title (c) Footer (d) Body text
21. 21.True or false: buttons almost touching is good button design. (a) False (b) True
22. 22.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ big picture ]
    [ title text ]
    [ top bar ]
    [ filter buttons ] (a) top bar (b) big picture (c) title text (d) filter buttons
23. 23.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) enter the code sent (c) tap “Sign up” (d) see the home screen
24. 24.💾 What number does this code show?
    let notes = ["Sports", "Maths", "Art", "Hindi"];
    notes.push("Science");
    show(notes.length);
25. 25.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) icons with no labels (d) tiny tap areas
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Chat tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
27. 27.Which of these fits saving on the phone? (a) chat messages to friends (b) a class leaderboard (c) photos on two devices (d) the sound on/off setting
28. 28.🔢 In a photo-post flow, which comes first: “open the camera screen” or “take the photo”? (a) open the camera screen (b) take the photo
29. 29.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Address
    Design B: Home → Pay → Confirm → Results → Pens → Shop → Address (a) Design A (b) Design B
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Title: 11 px
    Menu: 15 px
    Caption: 20 px
    Label: 15 px
31. 31.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
32. 32.✏️ What is a wireframe? (a) a simple screen sketch (b) a charging cable (c) a type of password (d) the finished app
33. 33.💾 What number does this code show?
    let lives = 9;
    lives = lives - 6;
    lives = lives + 3;
    show(lives);
34. 34.🔘 Our rule: buttons are at least 48 px tall. The Back button is 24 px tall. How many px taller must it be?
35. 35.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Confirm → Pay → Pens
    Design B: Home → Offers → Cart → Pens → Menu → Item
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Send button is 28 px tall. How many px taller must it be?
38. 38.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) pick an answer (b) see the final score (c) tap “Start quiz” (d) read a question
39. 39.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ title text ]
    [ search box ]
    [ menu icon ]
40. 40.True or false: your last game level fits saving in the cloud. (a) False (b) True

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