App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 810 · 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.💾 pop() takes off the last item. What does this code show?
   let notes = ["Art", "Science", "Maths"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Maths (b) Science (c) Art
2. 2.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) post the photo (b) add a filter (c) write a caption (d) take the photo
3. 3.🔀 In a good flow, each screen should lead to ___. (a) a dead end (b) the same screen (c) a clear next step (d) a random page
4. 4.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) pick an answer (b) see the final score (c) see if it is right (d) read a question
5. 5.Which of these fits saving on the phone? (a) chat messages to friends (b) photos on two devices (c) a shared to-do list (d) your last game level
6. 6.Which colour pair is easy to read? (a) yellow on white (b) white on dark green (c) pale pink on white (d) red on green
7. 7.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ title text ]
   [ filter buttons ]
   [ Save button ] (a) title text (b) list of items (c) Save button (d) filter buttons
8. 8.True or false: the theme colours is about UI (the look). (a) True (b) False
9. 9.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) good UI but poor UX (c) good UX but poor UI (d) perfect UX
10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Quiz tab
    3. open “Help page”
    4. open “Edit photo”
    5. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
11. 11.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
12. 12.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ title text ]
    [ search box ]
    [ tab bar ]
    [ big picture ] (a) big picture (b) title text (c) tab bar
13. 13.💾 In most code, the first item of a list is at position ___. (a) 2 (b) 1 (c) 10 (d) 0
14. 14.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “pick an answer”? (a) pick an answer (b) tap “Start quiz”
15. 15.🔍 Which is the odd one out? (a) how many taps it takes (b) whether users get lost (c) how fast a task is done (d) the button colours
16. 16.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ Add button ]
    [ list of items ]
    [ top bar ]
    [ search box ]
17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Help page”
    3. open “Score card”
    4. open “Video”
    5. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Pay → Pens
    Design B: Home → Address → Item → Cart → Results → Menu (a) Design A (b) Design B
19. 19.Which colour pair is easy to read? (a) yellow on white (b) pale pink on white (c) black on yellow (d) red on green
20. 20.True or false: a wireframe uses plain grey boxes. (a) True (b) False
21. 21.🔀 Why plan the user flow before building? (a) to skip testing (b) to hide the buttons (c) to add more taps (d) so each step is clear
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Body text: 13 px
    Caption: 12 px
23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Edit photo”
    3. tap Back
    4. tap the Lessons tab
    5. open “Video”
    Which screen are you on now? (a) Quiz (b) Lessons (c) Video (d) Edit photo
24. 24.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Chat tab
    3. open “Score card”
    Which screen are you on now? (a) Chat (b) Match report (c) Score card (d) Feed
26. 26.🎨 Fewer taps to finish a task usually means ___. (a) worse UX (b) more colours (c) a bigger app (d) better UX
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Offers → Pens
    Design B: Home → Pay → Menu → Pens → Offers
28. 28.💾 What number does this code show?
    let lives = 4;
    lives = lives - 1;
    lives = lives + 5;
    show(lives);
29. 29.💾 What number does this code show?
    let friends = ["Arjun", "Riya"];
    friends.push("Meera");
    show(friends.length);
30. 30.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the last app used (c) a random page (d) the phone settings
31. 31.Which of these fits saving in the cloud? (a) chat messages to friends (b) a draft you are typing (c) your last game level (d) the sound on/off setting
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Cart → Confirm
    Design B: Home → Cart → Search → Address → Confirm → Size
33. 33.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.🔢 In a sign-up flow, which comes FIRST? (a) enter the code sent (b) open the app (c) make a password (d) type name and email
35. 35.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
36. 36.True or false: the screen layout is about UI (the look). (a) True (b) False
37. 37.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
38. 38.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 56 px tall
    Cancel button: 72 px tall
    Send button: 64 px tall
    Done button: 44 px tall (a) Cancel (b) Done (c) Send (d) Start
39. 39.🔢 In a sign-up flow, which comes first: “open the app” or “make a password”? (a) open the app (b) make a password
40. 40.True or false: the button colours is about UI (the look). (a) False (b) True

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