App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 980 · 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 is the odd one out? (a) the button colours (b) how fast a task is done (c) how easy sign-up is (d) how many taps it takes
2. 2.✏️ Why draw a wireframe before coding? (a) it saves data (b) changes are quick (c) it adds colours (d) it runs the app
3. 3.✏️ What is a wireframe? (a) a type of password (b) a charging cable (c) a simple screen sketch (d) the finished app
4. 4.💾 What number does this code show?
   let friends = ["Riya", "Zoya"];
   friends.push("Kabir");
   friends.push("Aman");
   show(friends.length);
5. 5.🌗 Is yellow on white easy or hard to read on a button? (a) hard to read (b) easy to read
6. 6.True or false: a final design shows where things go. (a) True (b) False
7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Badges”
   2. open “Score card”
   3. open “Friend list”
   4. tap the Search tab
   5. open “Help page”
   How many times must you tap Back to reach the main screen of this tab?
8. 8.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Search → Results → Confirm → Offers
   Design B: Home → Pay → Offers → Item (a) Design B (b) Design A
9. 9.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a microphone (c) a 3D printer (d) a phone case
10. 10.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ Save button ]
    [ filter buttons ]
    [ title text ]
    [ top bar ]
    [ Add button ]
    [ tab bar ] (a) filter buttons (b) Add button (c) title text (d) top bar
11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Video”
    3. tap Back
    4. open “Map”
    Which screen are you on now? (a) Home (b) Video (c) Map (d) Search
12. 12.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 1 (c) 10 to 12 (d) 3 to 5
13. 13.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 36 px tall
    Back button: 52 px tall
    Done button: 52 px tall
    Cancel button: 60 px tall
14. 14.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ Save button ]
    [ filter buttons ]
    [ search box ]
    [ top bar ]
    [ Add button ]
    [ big picture ] (a) top bar (b) big picture (c) Save button (d) filter buttons
15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Help page”
    3. tap the Me tab
    4. open “Edit photo”
    Which screen are you on now? (a) Quiz (b) Edit photo (c) Help page (d) Lessons
16. 16.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) captions on videos (d) tiny tap areas
17. 17.💾 Which can hold many values in order? (a) a list (b) a single number (c) a switch (d) a button
18. 18.🔍 Which is the odd one out? (a) how users feel after (b) how many taps it takes (c) how easy sign-up is (d) the icon shapes
19. 19.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) type name and email (c) tap “Sign up” (d) see the home screen
20. 20.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
21. 21.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 44 px tall
    Next button: 44 px tall
    Send button: 44 px tall
    Back button: 60 px tall
22. 22.🔢 In a sign-up flow, what comes right after “type name and email”? (a) enter the code sent (b) see the home screen (c) make a password (d) tap “Sign up”
23. 23.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) in the cloud (b) on the phone
24. 24.True or false: a wireframe has no real colours. (a) False (b) True
25. 25.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Shop
    Design B: Home → Shop → Size → Address (a) Design B (b) Design A
27. 27.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) no UI at all (c) good UI but poor UX (d) good UX but poor UI
28. 28.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Size → Shop
    Design B: Home → Pay → Menu (a) Design B (b) Design A
29. 29.💾 What number does this code show?
    let songs = ["Stars", "Rain", "Sunrise", "Monsoon"];
    songs.push("Ocean");
    songs.push("Kites");
    show(songs.length);
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Offers → Item
    Design B: Home → Pens → Confirm → Cart → Item
31. 31.🎨 Who should you test the UX with? (a) real users (b) nobody (c) the app icon (d) only yourself
32. 32.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) add a filter (c) write a caption (d) post the photo
33. 33.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
34. 34.Which of these fits saving on the phone? (a) a draft you are typing (b) a shared to-do list (c) photos on two devices (d) chat messages to friends
35. 35.💾 What number does this code show?
    let friends = ["Arjun", "Zoya", "Riya"];
    friends.push("Aman");
    show(friends.length);
36. 36.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
37. 37.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ Save button ]
    [ filter buttons ]
    [ search box ]
    [ tab bar ] (a) search box (b) Save button (c) filter buttons
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Friend list”
    3. open “Video”
    Which screen are you on now? (a) Chat (b) Feed (c) Friend list (d) Video
39. 39.🔍 Which is the odd one out? (a) the screen layout (b) how easy sign-up is (c) the theme colours (d) the font size
40. 40.💾 What number does this code show?
    let songs = ["Rain", "Monsoon", "Sunrise", "Kites"];
    songs.push("Ocean");
    songs.push("Stars");
    show(songs.length);

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