App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 559 · 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.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
2. 2.🖼️ How many parts (boxes) does this wireframe have?
   [ filter buttons ]
   [ big picture ]
   [ list of items ]
   [ top bar ]
   [ menu icon ]
   [ Add button ]
3. 3.🔘 Is this good or poor button design: strong colour contrast? (a) good design (b) poor design
4. 4.💾 pop() takes off the last item. What does this code show?
   let friends = ["Riya", "Zoya", "Aman", "Kabir"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Riya (b) Zoya (c) Kabir (d) Aman
5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Video”
   2. tap the Quiz tab
   3. open “Map”
   How many times must you tap Back to reach the main screen of this tab?
6. 6.🔢 In a sign-up flow, which comes first: “enter the code sent” or “open the app”? (a) enter the code sent (b) open the app
7. 7.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Quiz tab
   2. open “Match report”
   3. open “Edit photo”
   Which screen are you on now? (a) Match report (b) Lessons (c) Edit photo (d) Quiz
10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Video”
    3. open “Edit photo”
    4. open “Score card”
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
11. 11.True or false: icons with no meaning is good button design. (a) True (b) False
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
13. 13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Video”
    Which screen are you on now? (a) Match report (b) Search (c) Home (d) Video
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Footer: 21 px
    Caption: 24 px
    Body text: 16 px
    Hint: 26 px (a) Body text (b) Caption (c) Menu (d) Footer
15. 15.🎨 UX stands for user ___. (a) experience (b) extra (c) express (d) example
16. 16.True or false: your last game level fits saving on the phone. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Title: 17 px
    Hint: 28 px
    Caption: 26 px (a) Caption (b) Title (c) Footer (d) Hint
18. 18.🔢 In a sign-up flow, which comes first: “open the app” or “type name and email”? (a) type name and email (b) open the app
19. 19.💾 pop() takes off the last item. What does this code show?
    let notes = ["Hindi", "Science", "Maths", "Sports", "Art"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Sports (c) Science (d) Hindi
20. 20.💾 What does this code show? (Positions start at 0.)
    let notes = ["Sports", "Art", "Hindi"];
    show(notes[0]); (a) Art (b) Hindi (c) Sports
21. 21.💾 What does this code show? (Positions start at 0.)
    let notes = ["Sports", "Art", "Music", "Science", "Maths"];
    show(notes[0]); (a) Music (b) Art (c) Science (d) Sports
22. 22.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
23. 23.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
24. 24.True or false: strong colour contrast is good button design. (a) False (b) True
25. 25.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
26. 26.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) a dead end (c) the same screen (d) a clear next step
27. 27.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UX but poor UI (c) good UI but poor UX (d) no UI at all
28. 28.🖼️ How many parts (boxes) does this wireframe have?
    [ filter buttons ]
    [ search box ]
    [ tab bar ]
    [ list of items ]
    [ Add button ]
29. 29.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the phone settings (c) a random page (d) the last app used
30. 30.🔢 In a quiz-app flow, which comes first: “pick an answer” or “see if it is right”? (a) see if it is right (b) pick an answer
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Menu → Shop
    Design B: Home → Pay → Search → Results → Offers → Menu
32. 32.💾 Data saved only on the phone is lost when ___. (a) the phone is lost (b) the app is closed (c) you send a message (d) the screen turns off
33. 33.💾 What number does this code show?
    let notes = ["Science", "Sports"];
    notes.push("Maths");
    notes.push("Music");
    show(notes.length);
34. 34.🔢 In a sign-up flow, what comes right after “open the app”? (a) see the home screen (b) enter the code sent (c) make a password (d) tap “Sign up”
35. 35.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
36. 36.Which colour pair is hard to read? (a) white on dark green (b) light grey on white (c) dark blue on white (d) black on pale grey
37. 37.💾 What does this code show? (Positions start at 0.)
    let notes = ["Music", "Hindi", "Sports", "Art", "Science"];
    show(notes[0]); (a) Hindi (b) Art (c) Music (d) Sports
38. 38.Which of these fits saving on the phone? (a) photos on two devices (b) a draft you are typing (c) a shared to-do list (d) a class leaderboard
39. 39.💾 Which can hold many values in order? (a) a switch (b) a list (c) a button (d) a single number
40. 40.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button

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