Selected MCQ

Current Question
Which of the following is a type of extended reality that overlays digital information onto the real world?
  • A. Virtual Reality (VR)
  • B. Augmented Reality (AR)
  • C. Artificial Reality (ARt)
  • D. Mixed Science
Correct Answer: B
Explanation:
Augmented Reality overlays virtual objects onto the real world via devices such as smart glasses.
Related Question 1
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 2
Which of the following is NOT a NoSQL database type?
  • A. Document store
  • B. Graph database
  • C. Relational table
  • D. Key-value store
Correct Answer: C
Explanation:
NoSQL includes document, graph, and key-value stores; a relational table is an SQL table.
Related Question 3
Which of the following is an emerging tech for generating realistic human images and voices?
  • A. Blockchain
  • B. Generative AI (GANs)
  • C. Quantum computing
  • D. Fiber optics
Correct Answer: B
Explanation:
Generative AI models like GANs can create realistic synthetic images, audio, and text.
Related Question 4
What is a 'digital twin' used for?
  • A. A backup of a database
  • B. A virtual model of a physical system for simulation
  • C. An identical computer router
  • D. Digital photography editing
Correct Answer: B
Explanation:
A digital twin is a software model that simulates a physical object or system.
Related Question 5
Which type of malware encrypts a user’s data and demands payment?
  • A. Ransomware
  • B. Spyware
  • C. Adware
  • D. Rootkit
Correct Answer: A
Explanation:
Ransomware locks or encrypts data and demands payment (ransom) for the key.