App Dev Worksheet: Final Test

App development lesson 24: App development final test · Set 756 · 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.👆 “On tap → do this” links an event to ___. (a) a web address (b) a font (c) a charger (d) an action
2. 2.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
   [title] Sign Up
   [text box] Name
   [text box] City
   [text box] Subject
   [button] Start
   [slider] Text size
3. 3.🔢 When you make an app, which comes LAST? (a) plan the screens (b) get an idea (c) release it (d) build the app
4. 4.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
   [ list of items ]
   [ top bar ]
   [ menu icon ]
   [ big picture ]
   [ Save button ]
   [ tab bar ] (a) big picture (b) top bar (c) list of items (d) tab bar
5. 5.💾 What number does this code show?
   let friends = ["Riya", "Zoya", "Aman"];
   friends.push("Arjun");
   friends.push("Meera");
   show(friends.length);
6. 6.Which of these happens at the plan stage? (a) pick the features (b) spot a problem to solve (c) add the buttons (d) connect the data
7. 7.Which of these app ideas solves no real problem? (a) a library due-date alert (b) an app that just says hi (c) a bill splitter (d) a free study-room finder
8. 8.🚀 Which version is newer: 4.11.3 or 4.6.0? (a) 4.11.3 (b) 4.6.0
9. 9.🧩 In an app, what is tap to Save? (a) data (b) an input (c) a button (d) a screen
10. 10.🧰 What number does this code show?
    function total(price, qty) {
      return price * qty;
    }
    show(total(15, 4));
11. 11.🔐 Is this permission request fair or too much: calculator → location? (a) fair (b) too much
12. 12.🧩 In an app, what is today’s step count? (a) an input (b) a button (c) data (d) a screen
13. 13.Which of these happens at the build stage? (a) talk to possible users (b) connect the data (c) draw the user flow (d) put it on an app store
14. 14.🗒️ You are planning version 1 of a quiz app. Which feature can WAIT for a later version? (a) check the answer (b) an avatar shop (c) show the score (d) show a question
15. 15.True or false: photos on two devices fits saving on the phone. (a) False (b) True
16. 16.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
17. 17.🔁 What is the LAST line this code shows?
    let names = ["Kabir", "Meera", "Zoya"];
    for (let i = 0; i < names.length; i++) {
      show("Hi, " + names[i]);
    } (a) Hi, Meera (b) Hi, Kabir (c) Hi, Zoya
18. 18.🔁 What does a loop do? (a) deletes code (b) repeats code (c) draws icons (d) saves photos
19. 19.🔐 Is this permission request fair or too much: calling app → contacts? (a) fair (b) too much
20. 20.True or false: how many taps it takes is about UX (the experience). (a) True (b) False
21. 21.🔢 In a food-order flow, which comes first: “add it to the cart” or “check the cart”? (a) add it to the cart (b) check the cart
22. 22.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
23. 23.👆 What kind of event is this: a countdown hits zero? (a) a tap event (b) a load event (c) a timer event (d) a text event
24. 24.🧰 What number does this code show?
    function points(stars) {
      return stars * 10 + 5;
    }
    show(points(2) + points(0));
25. 25.🗒️ Version 1 of a bus tracker must be ready in 11 days. How many days are left for extras after the must-haves?
    see where the bus is: 1 days
    show arrival time: 3 days
    pick your bus stop: 3 days
26. 26.💡 Does an app idea like a medicine reminder solve a real problem? (a) Yes (b) No
27. 27.💾 What number does this code show?
    let songs = ["Sunrise", "Monsoon"];
    songs.push("Ocean");
    show(songs.length);
28. 28.🚀 What should an app ask for only when it really needs it? (a) a font (b) its name (c) its icon (d) a permission
29. 29.🔢 In a photo-post flow, which comes LAST? (a) add a filter (b) post the photo (c) open the camera screen (d) write a caption
30. 30.👆 The user types Zoya in nameBox and taps the button 1 time. What does the label show?
    button.onTap = function () {
      label.text = "Hi, " + nameBox.text + "!";
    }; (a) Hi, nameBox.text! (b) Hi! (c) Zoya (d) Hi, Zoya!
31. 31.🗒️ In MVP, the M stands for ___. (a) music (b) mobile (c) maximum (d) minimum
32. 32.🗒️ You are planning version 1 of a water reminder. Which feature is a MUST-HAVE? (a) water animations (b) share your streak (c) custom alert sounds (d) set a reminder time
33. 33.🔁 A loop over a list of 5 items runs its body how many times? (a) 5 (b) 6 (c) 4 (d) 1
34. 34.True or false: a selfie sticker app needs the camera. (a) True (b) False
35. 35.🧩 Which of these is a button on this screen?
    [title] Order Snacks
    [text box] Name
    [slider] Text size
    [text box] Age
    [button] Send
    [text box] Due date
    [button] Back (a) Name (b) Age (c) Back (d) Due date
36. 36.Which of these is a feature? (a) “I keep missing the bus” (b) a search bar (c) “I forget my homework” (d) “What should I cook?”
37. 37.🔔 What is a message an app shows on your lock screen called? (a) a wireframe (b) a variable (c) a web address (d) a notification
38. 38.Which of these happens at the plan stage? (a) try every button (b) write the store text (c) spot a problem to solve (d) draw the user flow
39. 39.📱 Which one comes from an app store: an app or a website? (a) a website (b) an app
40. 40.Which of these requests asks for too much? (a) voice notes → microphone (b) map app → location (c) calculator → location (d) camera app → camera

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