App Dev Worksheet: Final Test

App development lesson 24: App development final test · Set 951 · 40 questions

Developer's tip (Plan, design, build, check): Find the topic: what apps are, designing apps, or logic and building. Read every screen, list or code line carefully, top to bottom. For code, write each value down step by step and check it again.

1. 1.🛠️ At which stage do you list what users need? (a) the plan stage (b) the idea stage (c) the test stage (d) the build stage
2. 2.🔢 In a photo-post flow, which comes first: “write a caption” or “take the photo”? (a) take the photo (b) write a caption
3. 3.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
4. 4.🔢 After an app is released, what comes right after “test it again”? (a) read user reviews (b) list what to fix (c) fix and improve (d) release an update
5. 5.📊 Survey: which problem bugs you most? How many students voted in all?
   wasting pocket money: 19 votes
   no quiet study place: 4 votes
   forgetting homework: 10 votes
6. 6.🚀 Which version is newer: 2.4.0 or 2.14.3? (a) 2.4.0 (b) 2.14.3
7. 7.👆 Code that runs when an event happens is called a ___. (a) hashtag (b) header (c) headline (d) handler
8. 8.🎯 Who are the users of an app? (a) the people who use it (b) only the coders (c) the app icons (d) only the testers
9. 9.🐞 What is a bug? (a) a new feature (b) a nice icon (c) a mistake in the code (d) a fast phone
10. 10.🔍 Which is the odd one out? (a) a sleep tracker (b) a times-table quiz (c) a water reminder (d) a step counter
11. 11.🐞 This code has a bug. What number SHOULD it show, if every line did what its comment says?
    line 1: let stars = 33; // start at 33
    line 2: stars = stars - 3; // add 3
    line 3: stars = stars + 5; // add 5
    line 4: show(stars); // show it
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Label: 24 px
    Hint: 24 px
    Caption: 16 px
    Menu: 13 px
13. 13.💾 What number does this code show?
    let lives = 3;
    lives = lives - 1;
    lives = lives + 3;
    show(lives);
14. 14.🧰 What is a function? (a) a list of colours (b) a named block of code (c) a type of phone (d) a screen size
15. 15.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    missing the bus: 5 votes
    losing water bottles: 3 votes
    wasting pocket money: 24 votes (a) losing water bottles (b) wasting pocket money (c) missing the bus
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Results → Cart → Item
    Design B: Home → Size → Item → Cart → Pens
17. 17.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the last app used (c) the phone settings (d) that tab’s main screen
18. 18.🗂️ What kind of app is a calculator? (a) a learning app (b) a game (c) a tool app (d) a health app
19. 19.🧩 Which of these is a button on this screen?
    [title] New Note
    [button] Done
    [text box] Due date
    [text box] Email (a) Done (b) Due date (c) Email
20. 20.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
21. 21.🐞 After fixing a bug you should ___. (a) never test (b) release at once (c) delete the test (d) test it again
22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Map”
    3. open “Score card”
    4. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) dead end (c) shortcut (d) tab bar
24. 24.🔀 Which badge does this quiz app show?
    let marks = 71;
    if (marks >= 80) {
      show("Gold");
    } else if (marks >= 50) {
      show("Silver");
    } else {
      show("Bronze");
    } (a) Bronze (b) Gold (c) Silver
25. 25.🔀 Which badge does this quiz app show?
    let marks = 33;
    if (marks >= 80) {
      show("Gold");
    } else if (marks >= 50) {
      show("Silver");
    } else {
      show("Bronze");
    } (a) Silver (b) Bronze (c) Gold
26. 26.💡 Does an app idea like a medicine reminder solve a real problem? (a) No (b) Yes
27. 27.Which of these fits saving on the phone? (a) photos on two devices (b) notes to read offline (c) a shared to-do list (d) a class leaderboard
28. 28.True or false: you list what users need at the build stage. (a) False (b) True
29. 29.📱 Which one needs no installing: an app or a website? (a) an app (b) a website
30. 30.🔢 In a quiz-app flow, which comes LAST? (a) see if it is right (b) tap “Start quiz” (c) pick an answer (d) see the final score
31. 31.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Map”
    3. open “Edit photo”
    4. tap the Feed tab
    5. tap the Feed tab
    Which screen are you on now? (a) Edit photo (b) Feed (c) Match report (d) Map
33. 33.👥 A school app has 60 students, 205 teachers and 220 parents as users. How many more parents than students are there?
34. 34.📱 Which one opens in a web browser: an app or a website? (a) a website (b) an app
35. 35.🧪 How many of these test cases pass?
    📝 Rule: a quiz is passed with 8 or more right answers.
    function result(right) {
      if (right >= 8) {
        return "Pass";
      }
      return "Try again";
    }
    Test 1: result(9) → expected Pass
    Test 2: result(7) → expected Try again
    Test 3: result(11) → expected Pass
36. 36.🔍 Which is the odd one out? (a) speaking a command (b) typing your age (c) taking a photo (d) working out a tip
37. 37.🔀 In this course’s code, which sign tests “is equal to”? (a) = (b) => (c) !== (d) ===
38. 38.🔢 After an app is released, which comes first: “release an update” or “list what to fix”? (a) release an update (b) list what to fix
39. 39.🔍 Which is the odd one out? (a) let friends try it (b) put it on an app store (c) write down the bugs (d) try every button
40. 40.Which of these is a button? (a) the home page of an app (b) a date picker (c) the game-over page (d) tap to Save

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