App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 362 · 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 number does this code show?
   let notes = ["Art", "Maths"];
   notes.push("Hindi");
   notes.push("Science");
   show(notes.length);
2. 2.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ menu icon ]
   [ title text ]
   [ filter buttons ]
   [ tab bar ]
   [ search box ] (a) title text (b) search box (c) filter buttons (d) tab bar
3. 3.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
4. 4.🖼️ How many parts (boxes) does this wireframe have?
   [ title text ]
   [ tab bar ]
   [ top bar ]
   [ search box ]
   [ big picture ]
   [ menu icon ]
5. 5.🔍 Which is the odd one out? (a) the button colours (b) the font size (c) whether users get lost (d) the screen layout
6. 6.🔢 In a sign-up flow, which comes LAST? (a) type name and email (b) see the home screen (c) enter the code sent (d) tap “Sign up”
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Map”
   2. tap Back
   3. open “Video”
   Which screen are you on now? (a) Lessons (b) Map (c) Quiz (d) Video
8. 8.Which of these is true of a tab bar? (a) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) undoes one move
9. 9.Which of these is true of a wireframe? (a) uses the final pictures (b) shows the real fonts (c) looks like the real app (d) has no real colours
10. 10.🔢 In a quiz-app flow, which comes LAST? (a) read a question (b) pick an answer (c) see the final score (d) tap “Start quiz”
11. 11.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Badges”
    3. open “Video”
    4. tap Back
    Which screen are you on now? (a) Quiz (b) Lessons (c) Badges (d) Video
13. 13.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
14. 14.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 64 px tall
    Back button: 48 px tall
    Save button: 40 px tall
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 72 px tall
    Send button: 36 px tall
    Save button: 68 px tall (a) Cancel (b) Save (c) Send
16. 16.💾 What does this code show? (Positions start at 0.)
    let friends = ["Arjun", "Riya", "Zoya"];
    show(friends[2]); (a) Arjun (b) Riya (c) Zoya
17. 17.🧭 What does the back button usually do? (a) closes all apps (b) opens settings (c) goes to the last screen (d) deletes the page
18. 18.💾 pop() takes off the last item. What does this code show?
    let songs = ["Sunrise", "Stars", "Ocean", "Monsoon", "Rain"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Monsoon (b) Stars (c) Ocean (d) Sunrise
19. 19.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ menu icon ]
    [ top bar ]
    [ big picture ]
    [ Save button ]
    [ filter buttons ] (a) filter buttons (b) Save button (c) menu icon (d) big picture
20. 20.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) see if it is right (c) read a question (d) pick an answer
21. 21.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) text that can grow (d) sudden loud sounds
22. 22.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Search tab
    3. tap the Profile tab
    Which screen are you on now? (a) Help page (b) Home (c) Search (d) Profile
24. 24.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
    [ list of items ]
    [ big picture ]
    [ filter buttons ]
    [ menu icon ]
    [ tab bar ]
    [ top bar ] (a) filter buttons (b) top bar (c) big picture (d) tab bar
25. 25.💾 What is a variable? (a) a named box for a value (b) a phone setting (c) a type of screen (d) a picture
26. 26.True or false: a shared to-do list fits saving on the phone. (a) False (b) True
27. 27.🔀 What is a user flow? (a) the path through screens (b) a type of font (c) a colour theme (d) a charging cable
28. 28.💾 Which can hold many values in order? (a) a single number (b) a list (c) a switch (d) a button
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Offers → Pens → Shop → Cart
    Design B: Home → Address → Offers
30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Profile tab
    3. open “Score card”
    Which screen are you on now? (a) Profile (b) Search (c) Home (d) Score card
31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Home tab
    3. open “Edit photo”
    Which screen are you on now? (a) Match report (b) Search (c) Edit photo (d) Home
32. 32.💾 pop() takes off the last item. What does this code show?
    let notes = ["Music", "Science", "Sports", "Hindi", "Maths"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Science (b) Hindi (c) Sports (d) Music
33. 33.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ top bar ]
    [ Save button ]
    [ list of items ] (a) Save button (b) top bar (c) Add button (d) list of items
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Hint: 14 px
    Label: 19 px
    Body text: 14 px
35. 35.True or false: a final design shows the real fonts. (a) True (b) False
36. 36.✏️ Why draw a wireframe before coding? (a) it adds colours (b) it runs the app (c) it saves data (d) changes are quick
37. 37.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these is true of a final design? (a) has no real colours (b) looks like the real app (c) is a quick sketch (d) uses plain grey boxes
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Address
    Design B: Home → Shop → Pay → Address → Search
40. 40.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
    [ top bar ]
    [ search box ]
    [ menu icon ]
    [ tab bar ]
    [ list of items ]
    [ big picture ] (a) big picture (b) top bar (c) tab bar (d) search box

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