App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 98 · 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.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
3. 3.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
4. 4.🔢 In a quiz-app flow, which comes first: “read a question” or “see if it is right”? (a) see if it is right (b) read a question
5. 5.✏️ Why draw a wireframe before coding? (a) it saves data (b) it runs the app (c) it adds colours (d) changes are quick
6. 6.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Pay → Offers → Confirm
   Design B: Home → Offers → Pens → Pay → Cart → Search → Item (a) Design A (b) Design B
7. 7.💾 Which works with no internet at all? (a) a shared chat (b) a cloud leaderboard (c) a cloud backup (d) data saved on the phone
8. 8.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
9. 9.💾 What number does this code show?
   let friends = ["Riya", "Kabir"];
   friends.push("Arjun");
   show(friends.length);
10. 10.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) shows the real fonts (d) shows where things go
11. 11.🔢 In a photo-post flow, which comes first: “post the photo” or “add a filter”? (a) post the photo (b) add a filter
12. 12.🔘 Our rule: buttons are at least 48 px tall. The Back button is 24 px tall. How many px taller must it be?
13. 13.✏️ What is a wireframe? (a) a type of password (b) the finished app (c) a simple screen sketch (d) a charging cable
14. 14.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 52 px tall
    Done button: 56 px tall
    Next button: 64 px tall
    Cancel button: 44 px tall
15. 15.🔢 In a sign-up flow, which comes first: “make a password” or “open the app”? (a) open the app (b) make a password
16. 16.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
17. 17.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
18. 18.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) big touch targets (d) colour as the only clue
19. 19.True or false: a wireframe has the real colours. (a) True (b) False
20. 20.🖼️ In this wireframe (top to bottom), what is right above the list of items?
    [ tab bar ]
    [ search box ]
    [ menu icon ]
    [ list of items ] (a) search box (b) menu icon (c) tab bar
21. 21.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
22. 22.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) pick an answer (c) read a question (d) see the final score
23. 23.True or false: a class leaderboard fits saving in the cloud. (a) False (b) True
24. 24.💾 What does this code show? (Positions start at 0.)
    let songs = ["Monsoon", "Kites", "Stars"];
    show(songs[2]); (a) Kites (b) Monsoon (c) Stars
25. 25.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
26. 26.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) fast-flashing lights (d) colour as the only clue
27. 27.🎨 UX stands for user ___. (a) extra (b) example (c) experience (d) express
28. 28.Which of these is true of a tab bar? (a) goes to the last screen (b) switches main sections (c) hides extra links (d) undoes one move
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
30. 30.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) enter the code sent (c) make a password (d) open the app
31. 31.Which of these fits saving in the cloud? (a) notes to read offline (b) your last game level (c) a draft you are typing (d) a class leaderboard
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Help page”
    3. tap Back
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
33. 33.💾 What does this code show? (Positions start at 0.)
    let songs = ["Sunrise", "Monsoon", "Stars"];
    show(songs[0]); (a) Stars (b) Monsoon (c) Sunrise
34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap the Settings tab
    3. tap the Settings tab
    4. open “Help page”
    Which screen are you on now? (a) Help page (b) Badges (c) Chat (d) Feed
35. 35.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) the same screen (c) a random page (d) a dead end
36. 36.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) open the camera screen (c) post the photo (d) take the photo
37. 37.🔀 What is a user flow? (a) a type of font (b) a charging cable (c) the path through screens (d) a colour theme
38. 38.🌗 Is yellow on white easy or hard to read on a button? (a) easy to read (b) hard to read
39. 39.🧭 Which part of navigation hides extra links? (a) a menu button (b) a tab bar (c) the back button
40. 40.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) pay for the order (c) add it to the cart (d) track the order

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students