Selected MCQ

Current Question
In data storage, what does SSD stand for?
  • A. Secure Storage Drive
  • B. Solid State Drive
  • C. Standard Server Disk
  • D. System Storage Device
Correct Answer: B
Explanation:
SSD stands for Solid State Drive, a fast storage device with no moving parts.
Related Question 1
What does ACID stand for in database transactions?
  • A. Atomicity, Consistency, Isolation, Durability
  • B. Accessibility, Concurrency, Integrity, Durability
  • C. Authentication, Control, Integrity, Durability
  • D. Atomicity, Connectivity, Integrity, Durability
Correct Answer: A
Explanation:
ACID stands for Atomicity, Consistency, Isolation, and Durability in database transactions.
Related Question 2
What ensures blockchain data integrity across nodes?
  • A. Public database
  • B. Hash-linked blocks and consensus
  • C. Encryption keys only
  • D. Trusted server
Correct Answer: B
Explanation:
Blockchain uses cryptographic hashes linking blocks and consensus protocols to maintain integrity.
Related Question 3
Which concept involves using sensor data to create a 3D model of a city or facility?
  • A. Digital wallet
  • B. Digital twin
  • C. Virtual machine
  • D. Quantum replica
Correct Answer: B
Explanation:
Digital twins can model entire environments or systems in real-time using sensor data.
Related Question 4
What does 'AIoT' stand for?
  • A. Artificial Intelligence of Things
  • B. Automated Internet of Things
  • C. Advanced IoT
  • D. None of the above
Correct Answer: A
Explanation:
AIoT combines artificial intelligence (AI) and the Internet of Things (IoT) to enable smarter devices.
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.