App Dev Worksheet: Final Test

App development lesson 24: App development final test · Set 215 · 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.👆 An event in an app is ___. (a) an app store (b) something that happens (c) a kind of list (d) a colour theme
2. 2.👆 Code that runs when an event happens is called a ___. (a) headline (b) hashtag (c) header (d) handler
3. 3.🗒️ Why keep version 1 small? (a) to learn from users soon (b) to confuse users (c) to use up storage (d) to look bigger
4. 4.🎨 UX stands for user ___. (a) experience (b) extra (c) example (d) express
5. 5.🎯 A short made-up profile of a typical user is called a ___. (a) protocol (b) password (c) pixel (d) persona
6. 6.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) take the photo (b) post the photo
7. 7.🔍 Which is the odd one out? (a) a water reminder (b) a step counter (c) a sleep tracker (d) a cricket run chase
8. 8.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ title text ]
   [ top bar ]
   [ tab bar ]
   [ list of items ]
   [ menu icon ]
   [ search box ] (a) top bar (b) list of items (c) menu icon (d) search box
9. 9.True or false: speaking a command is an input. (a) False (b) True
10. 10.🚀 In version 2.5.1, which number is the major version? (a) 251 (b) 2 (c) 1 (d) 5
11. 11.🧩 Which input is best for turning something ON or OFF? (a) a slider (b) a text box (c) a title (d) a switch
12. 12.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) tap “Sign up” (c) see the home screen (d) enter the code sent
13. 13.🐞 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 31
    line 2: stars = stars + 6; // add 6
    line 3: stars = stars * 2; // double it
    line 4: stars = stars - 2; // take away 2
    line 5: show(stars); // show it
14. 14.Which of these is about UI (the look)? (a) whether users get lost (b) the screen layout (c) how many taps it takes (d) how users feel after
15. 15.🔍 Which is the odd one out? (a) a water reminder (b) a word battle (c) a sleep tracker (d) a step counter
16. 16.🔍 Which is the odd one out? (a) a spelling coach (b) a unit converter (c) a calculator (d) an alarm clock
17. 17.🔁 What number does this code show?
    let runs = [5, 20, 4];
    let best = 0;
    for (let i = 0; i < runs.length; i++) {
      if (runs[i] > best) {
        best = runs[i];
      }
    }
    show(best);
18. 18.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) icons with no labels (d) captions on videos
19. 19.🔁 What is the LAST line this code shows?
    let names = ["Arjun", "Aman", "Kabir", "Zoya", "Meera"];
    for (let i = 0; i < names.length; i++) {
      show("Hi, " + names[i]);
    } (a) Hi, Meera (b) Hi, Aman (c) Hi, Kabir (d) Hi, Arjun
20. 20.👆 What kind of event is this: the screen first opens? (a) a text event (b) a tap event (c) a load event (d) a timer event
21. 21.Which of these happens at the release stage? (a) pick the features (b) share the download link (c) write the code (d) write down the bugs
22. 22.🔍 Which is the odd one out? (a) adding up a bill (b) a buzz (vibration) (c) working out a tip (d) checking a password
23. 23.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) the phone settings (c) the last app used (d) a random page
24. 24.🐞 What is a bug? (a) a mistake in the code (b) a fast phone (c) a new feature (d) a nice icon
25. 25.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    forgetting homework: 17 votes
    missing the bus: 12 votes
    forgetting birthdays: 21 votes (a) missing the bus (b) forgetting homework (c) forgetting birthdays
26. 26.🗒️ You are planning version 1 of a homework planner. Which feature can WAIT for a later version? (a) pick a theme colour (b) set a due date (c) add a homework task (d) see tasks by day
27. 27.Which of these app ideas solves a real problem? (a) a blank grey screen (b) a medicine reminder (c) a page of random dots (d) a button with no action
28. 28.🚀 Which version is newer: 1.2.8 or 1.2.14? (a) 1.2.14 (b) 1.2.8
29. 29.🧭 What does the back button usually do? (a) deletes the page (b) closes all apps (c) opens settings (d) goes to the last screen
30. 30.📅 An app team plans for 2 days, builds for 4 days, tests for 1 days and releases on 1 more day. How many more days does building take than testing?
31. 31.True or false: a date picker is a button. (a) True (b) False
32. 32.🔁 What is the LAST line this code shows?
    let names = ["Aman", "Riya", "Zoya", "Meera", "Kabir"];
    for (let i = 0; i < names.length; i++) {
      show("Hi, " + names[i]);
    } (a) Hi, Riya (b) Hi, Aman (c) Hi, Zoya (d) Hi, Kabir
33. 33.🎯 Is this a user need or a feature: a reminder alarm? (a) a user need (b) a feature
34. 34.📱 Which one comes from an app store: an app or a website? (a) an app (b) a website
35. 35.🔁 What number does this code show?
    let steps = [10, 17, 2];
    let best = 0;
    for (let i = 0; i < steps.length; i++) {
      if (steps[i] > best) {
        best = steps[i];
      }
    }
    show(best);
36. 36.🧰 What number does this code show?
    function total(price, qty) {
      return price * qty;
    }
    show(total(65, 2));
37. 37.True or false: a big, easy tap area is good button design. (a) True (b) False
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.🔔 What is a message an app shows on your lock screen called? (a) a wireframe (b) a web address (c) a variable (d) a notification
40. 40.🔢 In a food-order flow, which comes first: “pick a dish” or “open the menu”? (a) open the menu (b) pick a dish

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