Build Real JavaScript Projects | Module 8 MCQs

1.Which JavaScript function is commonly used to show the current time in a digital clock?

a) Date()
b) getTime()
c) new Date()
d) timeNow()

2. Which method is used to update a digital clock every second?

a) setTimeout()
b) setInterval()
c) requestTime()
d) updateClock()

3. What is the main purpose of a password generator?

a) Store passwords
b) Create random secure passwords
c) Encrypt files
d) Share passwords

4. Which JavaScript feature is used to generate random characters in a password generator?

a) Math.random()
b) randomText()
c) setRandom()
d) getRandom()

5. A QR code generator usually converts what into a QR code?

a) Image
b) Video
c) Text or URL
d) Audio

6. Which technology is commonly used with JavaScript to generate QR codes?

a) CSS only
b) QR code library
c) HTML table
d) JSON

7. Which storage method is best for saving notes in a Notes App?

a) Cookies
b) LocalStorage
c) Session
d) Variables

8. Which operation is required to add a new note in a Notes App?

a) delete
b) update
c) create
d) fetch

9. Which JavaScript concept is essential for tracking user actions in mini projects?

a) Loops
b) Events
c) Arrays
d) JSON

10. What is the main purpose of an Expense Tracker?

a) Calculate interest
b) Track income and expenses
c) Generate invoices
d) Manage users

11. Which data structure is best for storing multiple expenses?

a) String
b) Number
c) Array
d) Boolean

12. Which structure is best for storing each expense item?

a) Variable
b) Object
c) Function
d) Loop

13. Which method is commonly used to remove an expense from a list?

a) push()
b) map()
c) filter()
d) reduce()

14. Which feature improves user experience in real projects?

a) Console logs
b) Alerts only
c) Dynamic UI updates
d) Comments

15. Mini projects help learners mainly to:

a) Memorize syntax
b) Practice real-world skills
c) Write longer code
d) Avoid frameworks

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