Selected MCQ

Current Question
Which of the following is an example of multi-factor authentication?
  • A. Password-only login
  • B. Fingerprint plus PIN entry
  • C. Single sign-on (SSO) via Google
  • D. CAPTCHA challenge only
Correct Answer: B
Explanation:
A fingerprint (something you are) plus a PIN (something you know) is multi-factor authentication.
Related Question 1
What is multi-factor authentication (MFA)?
  • A. A single password login
  • B. A combination of two types of credentials
  • C. A long password only
  • D. Password plus CAPTCHA only
Correct Answer: B
Explanation:
MFA uses multiple factors (such as a password and a phone code) to verify identity, increasing security.
Related Question 2
Which of the following is an example of Augmented Reality (AR)?
  • A. Oculus VR headset
  • B. Pokemon Go app overlaying images on camera view
  • C. Watching 3D movies
  • D. Using a fitness tracker
Correct Answer: B
Explanation:
Pokémon Go overlays game images onto the real world through a phone camera (AR).
Related Question 3
What is two-factor authentication (2FA)?
  • A. Using the same password twice
  • B. Two random passwords
  • C. Two different methods to verify identity
  • D. Logging in on two devices
Correct Answer: C
Explanation:
2FA requires two different types of credentials (e.g., a password and an OTP code).
Related Question 4
Which of the following is an example of a data warehousing platform?
  • A. Hadoop HDFS
  • B. Amazon Redshift
  • C. MySQL Workbench
  • D. SQLite
Correct Answer: B
Explanation:
Amazon Redshift is a cloud data warehouse service for analytics.
Related Question 5
Which of the following is an example of a relational database management system (RDBMS)?
  • A. MongoDB
  • B. Cassandra
  • C. MySQL
  • D. Redis
Correct Answer: C
Explanation:
MySQL is a popular relational database system.