App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 915 · 40 questions

Developer's tip (Name the topic): First decide which topic the question is about. Use that lesson’s rule: count, order, match or work it out. Read every line of a screen or a code snippet before you answer.

1. 1.📊 Survey: which problem bugs you most? Which problem should your app solve first?
   missing the bus: 15 votes
   no quiet study place: 6 votes
   forgetting homework: 7 votes (a) forgetting homework (b) no quiet study place (c) missing the bus
2. 2.Which of these is true of an app? (a) opens from a link (b) needs no installing (c) is installed on a phone (d) opens in a web browser
3. 3.⚙️ Which line does the processing (works out the answer)?
   line 1: let km = 11; // typed by the user
   line 2: let metres = km * 1000;
   line 3: show(metres); (a) line 3 (b) line 1 (c) line 2
4. 4.🌐 Which program do you need to open a website? (a) a calculator (b) an app store (c) a web browser (d) a camera app
5. 5.🗒️ You are planning version 1 of a bus tracker. Which feature can WAIT for a later version? (a) pick your bus stop (b) see where the bus is (c) a dark mode (d) show arrival time
6. 6.Which of these is true of a website? (a) is installed on a phone (b) opens in a web browser (c) comes from an app store (d) has a home-screen icon
7. 7.🗒️ Version 1 of a homework planner must be ready in 9 days. How many days are left for extras after the must-haves?
   add a homework task: 2 days
   set a due date: 1 days
   see tasks by day: 2 days
8. 8.🧩 How many buttons does this app screen have?
   [title] Edit Profile
   [button] Done
   [text box] Due date
9. 9.🔢 After an app is released, which comes first: “fix and improve” or “test it again”? (a) fix and improve (b) test it again
10. 10.🔍 Which is the odd one out? (a) working out a tip (b) a buzz (vibration) (c) checking a password (d) sorting the scores
11. 11.🗒️ You are planning version 1 of a bus tracker. Which feature can WAIT for a later version? (a) see where the bus is (b) pick your bus stop (c) rate the driver (d) show arrival time
12. 12.True or false: the home page of an app is a screen. (a) True (b) False
13. 13.⚙️ What number does this app show?
    let price = 10; // typed by the user
    let qty = 2; // typed by the user
    let total = price * qty;
    show(total);
14. 14.Which of these is processing? (a) taking a photo (b) working out a tip (c) a beep sound (d) a pop-up message
15. 15.👥 A library app has 40 readers, 135 librarians and 220 volunteers as users. How many more volunteers than librarians are there?
16. 16.🔍 Which is the odd one out? (a) working out a tip (b) sorting the scores (c) typing your age (d) adding up a bill
17. 17.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] New Note
    [switch] Remind me
    [button] Cancel
    [text box] Name
    [button] Send
    [text box] Phone
    [button] Start
    [text box] Subject
18. 18.🗒️ When should nice-to-have features be built? (a) before anything (b) on day one (c) never (d) after the must-haves
19. 19.🎯 A short made-up profile of a typical user is called a ___. (a) protocol (b) persona (c) password (d) pixel
20. 20.🧩 Which of these is a button on this screen?
    [title] Settings
    [button] Back
    [button] Save
    [text box] Age
    [switch] Dark mode
    [button] Help (a) Age (b) Dark mode (c) Help
21. 21.💡 An app that tries to do everything at once is usually ___. (a) easy to build (b) finished fast (c) hard to use (d) very small
22. 22.Which of these app ideas solves a real problem? (a) a free study-room finder (b) a page of random dots (c) a blank grey screen (d) a button with no action
23. 23.⚙️ What number does this app show?
    let bill = 44; // typed by the user
    let friends = 4; // typed by the user
    let share = bill / friends;
    show(share);
24. 24.👥 A clinic app has 220 patients, 120 doctors and 25 nurses as users. Which user group is the biggest? (a) doctors (b) patients (c) nurses
25. 25.👥 A school app has 55 students, 80 teachers and 290 parents as users. Which user group is the biggest? (a) teachers (b) students (c) parents
26. 26.Which of these is a screen? (a) a date picker (b) the settings page (c) tap to Save (d) tap to Send
27. 27.🗒️ You are planning version 1 of a bus tracker. Which feature can WAIT for a later version? (a) change the bus icon (b) pick your bus stop (c) see where the bus is (d) show arrival time
28. 28.🧩 What do we call one full page of an app? (a) a screen (b) a battery (c) a cable (d) a variable
29. 29.🔢 When you make an app, which comes first: “test the app” or “build the app”? (a) test the app (b) build the app
30. 30.True or false: a website updates from the store. (a) False (b) True
31. 31.🛠️ At which stage do you pick the features? (a) the build stage (b) the test stage (c) the plan stage (d) the release stage
32. 32.🗒️ You are planning version 1 of a bus tracker. Which feature is a MUST-HAVE? (a) change the bus icon (b) rate the driver (c) see where the bus is (d) a dark mode
33. 33.🗒️ You are planning version 1 of a bus tracker. Which feature is a MUST-HAVE? (a) a dark mode (b) show arrival time (c) rate the driver (d) change the bus icon
34. 34.🔍 Which is the odd one out? (a) a beep sound (b) working out a tip (c) checking a password (d) adding up a bill
35. 35.⚙️ In an app, is checking a password an input, processing or an output? (a) input (b) processing (c) output
36. 36.🗒️ What is a must-have feature? (a) a nice extra (b) one the app cannot skip (c) a colour theme (d) a sound effect
37. 37.🧑 Who is an app really made for? (a) its coder only (b) its charger (c) its users (d) its icon
38. 38.🎯 Is this a user need or a feature: “Small text is hard”? (a) a user need (b) a feature
39. 39.⚙️ What number does this app show?
    let price = 35; // typed by the user
    let qty = 4; // typed by the user
    let total = price * qty;
    show(total);
40. 40.True or false: a medicine reminder solves no real problem. (a) False (b) True

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