App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 283 · 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 helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) colour as the only clue (d) sudden loud sounds
2. 2.🎨 UX stands for user ___. (a) express (b) extra (c) experience (d) example
3. 3.💾 pop() takes off the last item. What does this code show?
   let notes = ["Sports", "Science", "Hindi", "Music"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Music (b) Hindi (c) Sports (d) Science
4. 4.💾 What number does this code show?
   let friends = ["Meera", "Riya"];
   friends.push("Aman");
   friends.push("Kabir");
   show(friends.length);
5. 5.💾 Data saved only on the phone is lost when ___. (a) the app is closed (b) the screen turns off (c) you send a message (d) the phone is lost
6. 6.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Confirm → Shop → Offers
   Design B: Home → Address → Size (a) Design A (b) Design B
7. 7.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 20 px tall. How many px taller must it be?
8. 8.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Cancel button: 48 px tall
   Save button: 24 px tall
   Send button: 48 px tall (a) Cancel (b) Send (c) Save
9. 9.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
   [ filter buttons ]
   [ menu icon ]
   [ search box ]
   [ list of items ]
   [ Save button ]
   [ big picture ] (a) search box (b) menu icon (c) big picture (d) list of items
10. 10.🌗 Is yellow on white easy or hard to read on a button? (a) easy to read (b) hard to read
11. 11.Which of these is true of a menu button? (a) undoes one move (b) switches main sections (c) goes to the last screen (d) opens a list of pages
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Score card”
    3. tap the Quiz tab
    4. tap the Me tab
    Which screen are you on now? (a) Me (b) Score card (c) Lessons (d) Quiz
13. 13.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
15. 15.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to hide the menu (c) to use more battery (d) to look busy
16. 16.💾 pop() takes off the last item. What does this code show?
    let notes = ["Hindi", "Science", "Music", "Maths", "Sports"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Science (b) Hindi (c) Maths (d) Music
17. 17.🖼️ How many parts (boxes) does this wireframe have?
    [ tab bar ]
    [ title text ]
    [ list of items ]
    [ Save button ]
    [ filter buttons ]
    [ big picture ]
18. 18.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
    [ menu icon ]
    [ top bar ]
    [ list of items ]
    [ big picture ] (a) top bar (b) big picture (c) list of items
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 56 px tall
    Help button: 56 px tall
    Done button: 56 px tall
    Next button: 40 px tall (a) Next (b) Save (c) Help (d) Done
20. 20.True or false: a final design has the real colours. (a) False (b) True
21. 21.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
22. 22.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
23. 23.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ big picture ]
    [ menu icon ]
    [ top bar ]
    [ title text ] (a) title text (b) Add button (c) top bar (d) big picture
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Menu
    Design B: Home → Shop → Search → Results → Size → Confirm → Item
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Item → Offers
    Design B: Home → Pay → Pens → Confirm → Cart → Shop
26. 26.Which of these fits saving in the cloud? (a) photos on two devices (b) a draft you are typing (c) notes to read offline (d) your last game level
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Score card”
    3. tap the Home tab
    4. open “Edit photo”
    Which screen are you on now? (a) Badges (b) Home (c) Score card (d) Edit photo
28. 28.💾 What number does this code show?
    let songs = ["Monsoon", "Sunrise", "Ocean", "Kites"];
    songs.push("Rain");
    songs.push("Stars");
    show(songs.length);
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
30. 30.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
31. 31.🔢 In a quiz-app flow, what comes right after “read a question”? (a) see if it is right (b) tap “Start quiz” (c) see the final score (d) pick an answer
32. 32.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the last app used (c) the phone settings (d) a random page
33. 33.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
34. 34.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
35. 35.🔢 In a sign-up flow, which comes first: “type name and email” or “enter the code sent”? (a) enter the code sent (b) type name and email
36. 36.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 20 (c) 3 to 5 (d) 1
37. 37.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
38. 38.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
39. 39.🔢 In a sign-up flow, which comes FIRST? (a) type name and email (b) enter the code sent (c) tap “Sign up” (d) open the app
40. 40.✏️ What is a wireframe? (a) a type of password (b) the finished app (c) a charging cable (d) a simple screen sketch

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