App Dev Worksheet: Final Test

App development lesson 24: App development final test · Set 888 · 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.🔢 After an app is released, which comes first: “read user reviews” or “test it again”? (a) test it again (b) read user reviews
2. 2.🔍 Which is the odd one out? (a) a buzz (vibration) (b) tapping a button (c) taking a photo (d) speaking a command
3. 3.🧪 Who else should try an app before release? (a) the app icon (b) only the coder (c) nobody (d) real users
4. 4.True or false: a final design shows where things go. (a) True (b) False
5. 5.📊 Survey: which problem bugs you most? How many more votes did “forgetting homework” get than “forgetting birthdays”?
   forgetting homework: 14 votes
   wasting pocket money: 17 votes
   forgetting birthdays: 8 votes
6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Back button: 28 px tall
   Done button: 68 px tall
   Cancel button: 68 px tall
   Save button: 68 px tall (a) Cancel (b) Done (c) Save (d) Back
7. 7.🛠️ At which stage do you draw the user flow? (a) the release stage (b) the test stage (c) the plan stage (d) the idea stage
8. 8.👆 Which of these is an event? (a) the font size (b) a list of names (c) the user taps a button (d) the icon colour
9. 9.📊 Survey: which problem bugs you most? How many students voted in all?
   losing water bottles: 22 votes
   missing the bus: 20 votes
   wasting pocket money: 5 votes
10. 10.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 10 to 12 (d) 1
11. 11.🧩 In an app, what is the settings page? (a) a screen (b) data (c) an input (d) a button
12. 12.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to hide the menu (c) to look busy (d) to use more battery
13. 13.True or false: a calculator is a learning app. (a) False (b) True
14. 14.🧩 Which of these is a button on this screen?
    [title] New Note
    [button] Cancel
    [text box] Phone
    [text box] Subject
    [text box] City
    [button] Back
    [switch] Show hints (a) City (b) Back (c) Phone (d) Subject
15. 15.🧰 What number does this code show?
    function triple(n) {
      return n * 3;
    }
    show(triple(5));
16. 16.📅 An app team plans for 4 days, builds for 6 days, tests for 1 days and releases on 1 more day. How many more days does building take than testing?
17. 17.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) a menu button (c) the back button
18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Score card”
    4. open “Help page”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
19. 19.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
20. 20.🗂️ What kind of app is a unit converter? (a) a health app (b) a learning app (c) a game (d) a tool app
21. 21.📱 Where do people usually download phone apps from? (a) a charger (b) a web server (c) an app store (d) a printer
22. 22.True or false: the log-in page is a screen. (a) True (b) False
23. 23.🗂️ What kind of app is a cricket run chase? (a) a learning app (b) a game (c) a health app (d) a tool app
24. 24.🔀 Why plan the user flow before building? (a) to add more taps (b) to hide the buttons (c) to skip testing (d) so each step is clear
25. 25.🔁 What number does this code show?
    let scores = [54, 59, 81, 79];
    let count = 0;
    for (let i = 0; i < scores.length; i++) {
      if (scores[i] >= 60) {
        count = count + 1;
      }
    }
    show(count);
26. 26.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) text that can grow (d) big touch targets
27. 27.🌗 Is white on black easy or hard to read on a button? (a) easy to read (b) hard to read
28. 28.🔢 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
29. 29.🎯 Which app would help this user most: a runner who forgets to sip water? (a) a big-text reader (b) a pocket-money tracker (c) a water reminder (d) a recipe finder
30. 30.🔍 Which is the odd one out? (a) connect the data (b) draw the user flow (c) sketch the screens (d) pick the features
31. 31.🧪 How many of these test cases pass?
    🚚 Rule: delivery is free (0) when the order is 300 or more; otherwise it costs 40.
    function delivery(total) {
      if (total > 300) {
        return 0;
      }
      return 40;
    }
    Test 1: delivery(600) → expected 0
    Test 2: delivery(250) → expected 40
    Test 3: delivery(550) → expected 0
32. 32.💡 After a survey, which need should version 1 solve? (a) the most common need (b) the newest trend (c) the rarest need (d) a random need
33. 33.🗒️ Version 1 of a bus tracker must be ready in 14 days. How many days are left for extras after the must-haves?
    see where the bus is: 1 days
    show arrival time: 4 days
    pick your bus stop: 4 days
34. 34.⚙️ In an app, is a buzz (vibration) an input, processing or an output? (a) output (b) input (c) processing
35. 35.👥 A cricket club app has 140 players, 145 coaches and 85 fans as users. How many more coaches than players are there?
36. 36.💡 Does an app idea like a bill splitter solve a real problem? (a) Yes (b) No
37. 37.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) open the camera screen (c) post the photo (d) write a caption
38. 38.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Search → Shop → Results → Offers → Address
    Design B: Home → Results → Size → Menu
39. 39.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
40. 40.True or false: you talk to possible users at the idea stage. (a) True (b) False

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