App Dev Worksheet: Final Test

App development lesson 24: App development final test · Set 937 · 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.True or false: a class leaderboard fits saving in the cloud. (a) False (b) True
2. 2.Which of these requests is fair? (a) timer → your photos (b) calculator → location (c) map app → location (d) torch → contacts
3. 3.👆 Code that runs when an event happens is called a ___. (a) hashtag (b) header (c) handler (d) headline
4. 4.📱 Which one needs no installing: an app or a website? (a) an app (b) a website
5. 5.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
6. 6.🧩 How many buttons does this app screen have?
   [title] Add Homework
   [slider] Text size
   [text box] Subject
   [text box] Email
   [text box] Age
   [button] Start
   [button] Help
   [button] Next
7. 7.🔀 What does this sign-up rule show?
   let age = 9;
   if (age >= 13) {
     show("Welcome!");
   } else {
     show("Ask a parent");
   } (a) Welcome! (b) Ask a parent
8. 8.🗂️ What kind of app is a racing challenge? (a) a tool app (b) a health app (c) a game (d) a learning app
9. 9.True or false: an app updates from the store. (a) True (b) False
10. 10.True or false: a speak-to-type notes app needs the microphone. (a) False (b) True
11. 11.🗒️ You are planning version 1 of a quiz app. Which feature is a MUST-HAVE? (a) background music (b) confetti effects (c) an avatar shop (d) check the answer
12. 12.True or false: your high score is data. (a) False (b) True
13. 13.Which of these app ideas solves a real problem? (a) a bill splitter (b) an app that just says hi (c) a blank grey screen (d) a button with no action
14. 14.True or false: a free study-room finder solves a real problem. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a water reminder (b) a puzzle with levels (c) a word battle (d) a cricket run chase
16. 16.💾 What number does this code show?
    let notes = ["Art", "Science"];
    notes.push("Hindi");
    notes.push("Maths");
    show(notes.length);
17. 17.🐞 This code has a bug. What number does it ACTUALLY show?
    line 1: let lives = 41; // start at 39
    line 2: lives = lives - 2; // take away 2
    line 3: lives = lives - 4; // take away 4
    line 4: show(lives); // show it
18. 18.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ tab bar ]
    [ list of items ]
    [ big picture ]
    [ Add button ]
    [ title text ] (a) list of items (b) title text (c) Add button (d) tab bar
19. 19.Which of these is a feature? (a) “What should I cook?” (b) “I keep missing the bus” (c) “I forget my homework” (d) a share button
20. 20.💡 An app that tries to do everything at once is usually ___. (a) easy to build (b) hard to use (c) finished fast (d) very small
21. 21.🧩 In an app, what is the home page of an app? (a) a screen (b) a button (c) data (d) an input
22. 22.🔢 When you make an app, which comes LAST? (a) test the app (b) get an idea (c) plan the screens (d) release it
23. 23.🔀 What does this sign-up rule show?
    let age = 14;
    if (age >= 13) {
      show("Welcome!");
    } else {
      show("Ask a parent");
    } (a) Ask a parent (b) Welcome!
24. 24.👥 A school app has 285 students, 35 teachers and 210 parents as users. Which user group is the biggest? (a) parents (b) students (c) teachers
25. 25.🐞 This code has a bug. What number does it ACTUALLY show?
    line 1: let score = 32; // start at 32
    line 2: score = score + 4; // add 4
    line 3: score = score + 6; // add 3
    line 4: show(score); // show it
26. 26.True or false: strong colour contrast is poor button design. (a) True (b) False
27. 27.🔢 In a photo-post flow, which comes first: “take the photo” or “post the photo”? (a) take the photo (b) post the photo
28. 28.📊 Survey: which problem bugs you most? How many more votes did “wasting pocket money” get than “missing the bus”?
    missing the bus: 17 votes
    no quiet study place: 9 votes
    wasting pocket money: 24 votes
29. 29.🔁 What is the LAST line this code shows?
    let names = ["Meera", "Zoya", "Riya", "Aman"];
    for (let i = 0; i < names.length; i++) {
      show("Hi, " + names[i]);
    } (a) Hi, Riya (b) Hi, Aman (c) Hi, Zoya (d) Hi, Meera
30. 30.True or false: an app opens in a web browser. (a) False (b) True
31. 31.📲 What happens when you tap an app’s icon? (a) the sound turns off (b) the phone charges (c) the app is deleted (d) the app opens
32. 32.🔍 Which is the odd one out? (a) draw the user flow (b) sketch the screens (c) spot a problem to solve (d) pick the features
33. 33.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) big touch targets
34. 34.🔁 What does a loop do? (a) saves photos (b) draws icons (c) deletes code (d) repeats code
35. 35.🔀 Which badge does this quiz app show?
    let marks = 98;
    if (marks >= 80) {
      show("Gold");
    } else if (marks >= 50) {
      show("Silver");
    } else {
      show("Bronze");
    } (a) Silver (b) Bronze (c) Gold
36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Quiz tab
    4. tap the Quiz tab
    5. open “Friend list”
    Which screen are you on now? (a) Quiz (b) Friend list (c) Lessons (d) Edit photo
37. 37.👥 A clinic app has 100 patients, 270 doctors and 110 nurses as users. How many more doctors than nurses are there?
38. 38.🔍 Which is the odd one out? (a) a pop-up message (b) a buzz (vibration) (c) sorting the scores (d) a result on screen
39. 39.🔐 Which permission does a weather-near-me app really need? (a) location (b) contacts (c) the camera (d) the microphone
40. 40.🔀 What does >= mean? (a) not equal (b) smaller or equal (c) less than (d) greater than or equal

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