App Dev Worksheet: Final Test

App development lesson 24: App development final test · Set 670 · 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.🗒️ You are planning version 1 of a bus tracker. Which feature can WAIT for a later version? (a) change the bus icon (b) see where the bus is (c) pick your bus stop (d) show arrival time
2. 2.👆 An event in an app is ___. (a) a colour theme (b) something that happens (c) a kind of list (d) an app store
3. 3.True or false: a wireframe looks like the real app. (a) True (b) False
4. 4.🎯 Which app would help this user most: a grandparent with weak eyesight? (a) a bus tracker (b) a homework planner (c) a recipe finder (d) a big-text reader
5. 5.🗒️ You are planning version 1 of a homework planner. Which feature can WAIT for a later version? (a) earn stickers (b) see tasks by day (c) add a homework task (d) set a due date
6. 6.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Match report”
   2. tap Back
   3. tap the Search tab
   Which screen are you on now? (a) Search (b) Home (c) Match report (d) Profile
7. 7.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
8. 8.🖼️ In this wireframe (top to bottom), what is right above the Save button?
   [ top bar ]
   [ search box ]
   [ menu icon ]
   [ title text ]
   [ Save button ] (a) menu icon (b) search box (c) top bar (d) title text
9. 9.🚀 Which version is newer: 4.3.2 or 4.14.0? (a) 4.3.2 (b) 4.14.0
10. 10.🎨 Who should you test the UX with? (a) real users (b) nobody (c) the app icon (d) only yourself
11. 11.🗒️ Version 1 of a water reminder must be ready in 9 days. How many days are left for extras after the must-haves?
    set a reminder time: 4 days
    log a glass of water: 1 days
    see today’s total: 2 days
12. 12.🔍 Which is the odd one out? (a) how fast a task is done (b) how easy sign-up is (c) how users feel after (d) the screen layout
13. 13.📱 Which one opens from a link: an app or a website? (a) an app (b) a website
14. 14.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) a menu button (c) the back button
15. 15.🐞 This code has a bug. What number SHOULD it show, if every line did what its comment says?
    line 1: let score = 47; // start at 46
    line 2: score = score + 2; // add 2
    line 3: score = score + 5; // add 5
    line 4: score = score + 5; // add 5
    line 5: show(score); // show it
16. 16.🔁 What number does this code show?
    let runs = [3, 1, 2, 13, 3];
    let best = 0;
    for (let i = 0; i < runs.length; i++) {
      if (runs[i] > best) {
        best = runs[i];
      }
    }
    show(best);
17. 17.🧰 A museum app works out the entry fee. What number does this code show?
    function fee(age) {
      if (age < 5) {
        return 0;
      }
      return 40;
    }
    show(fee(8) + fee(7));
18. 18.🔁 What number does this code show?
    let marks = [53, 51, 41, 57];
    let count = 0;
    for (let i = 0; i < marks.length; i++) {
      if (marks[i] >= 50) {
        count = count + 1;
      }
    }
    show(count);
19. 19.💾 Which works with no internet at all? (a) a cloud backup (b) a cloud leaderboard (c) data saved on the phone (d) a shared chat
20. 20.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) strong colour contrast (d) big touch targets
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 28 px tall
    Start button: 60 px tall
    Back button: 48 px tall (a) Back (b) Cancel (c) Start
22. 22.📱 The word “app” is short for ___. (a) apparatus (b) appetite (c) appointment (d) application
23. 23.📱 Which one is installed on a phone: an app or a website? (a) a website (b) an app
24. 24.✏️ What is a wireframe? (a) the finished app (b) a charging cable (c) a simple screen sketch (d) a type of password
25. 25.🧰 What number does this code show?
    function total(price, qty) {
      return price * qty;
    }
    show(total(35, 3));
26. 26.Which colour pair is easy to read? (a) light grey on white (b) dark blue on black (c) red on green (d) white on dark green
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Shop → Pens → Offers → Results → Pay
    Design B: Home → Search → Shop → Confirm
28. 28.🎯 Which app would help this user most: a student who often misses the school bus? (a) a water reminder (b) a big-text reader (c) a homework planner (d) a bus tracker
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Video”
    3. open “Match report”
    4. tap the Me tab
    Which screen are you on now? (a) Me (b) Lessons (c) Match report (d) Video
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Label: 16 px
    Hint: 17 px
    Footer: 11 px (a) Label (b) Hint (c) Footer (d) Title
31. 31.🐞 This code has a bug. What number SHOULD it show, if every line did what its comment says?
    line 1: let points = 36; // start at 34
    line 2: points = points * 2; // double it
    line 3: points = points + 6; // add 6
    line 4: show(points); // show it
32. 32.🗒️ What is a must-have feature? (a) one the app cannot skip (b) a nice extra (c) a sound effect (d) a colour theme
33. 33.True or false: a bus tracker is the best fit for a parent waiting at the bus stop. (a) False (b) True
34. 34.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 44 px tall
    Back button: 56 px tall
    Save button: 36 px tall
    Send button: 52 px tall
35. 35.🧪 A test fails when ___. (a) actual is not expected (b) the app is new (c) the font is big (d) both are the same
36. 36.🔐 Which permission does a selfie sticker app really need? (a) the microphone (b) location (c) contacts (d) the camera
37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap Back
    3. tap the Quiz tab
    4. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
38. 38.💡 Which app idea solves this problem: nobody knows whose bag it is? (a) a study-room finder (b) a lost-and-found board (c) a bill splitter (d) a homework planner
39. 39.Which of these is about UX (the experience)? (a) the theme colours (b) the screen layout (c) whether users get lost (d) the icon shapes
40. 40.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button

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