Selected MCQ

Current Question
Which of these is a cloud-native database technology?
  • A. MongoDB Atlas
  • B. Oracle 12c on-prem
  • C. SQLite mobile
  • D. Microsoft Access
Correct Answer: A
Explanation:
MongoDB Atlas is a managed cloud database service (cloud-native).
Related Question 1
Which technology is used for secure, short-range wireless communication in IoT devices?
  • A. Wi-Fi
  • B. Bluetooth Low Energy (BLE)
  • C. Ethernet
  • D. 4G LTE
Correct Answer: B
Explanation:
Bluetooth Low Energy is a wireless protocol for low-power short-range communication.
Related Question 2
What is the key benefit of virtualization in cloud computing?
  • A. Reduced internet speed
  • B. Isolation of applications in secure environments
  • C. Human-driven networking
  • D. No changes needed
Correct Answer: B
Explanation:
Virtualization isolates and encapsulates applications in virtual machines or containers.
Related Question 3
Which technology helps secure communications using quantum mechanics?
  • A. Quantum key distribution (QKD)
  • B. Standard VPN
  • C. Hashing
  • D. WPA2
Correct Answer: A
Explanation:
QKD uses quantum particles to securely share encryption keys, with eavesdropping detectable.
Related Question 4
In cloud security, what is IAM used for?
  • A. Data encryption
  • B. Identity and Access Management
  • C. Network routing
  • D. Performance monitoring
Correct Answer: B
Explanation:
IAM (Identity and Access Management) controls user identities and permissions in cloud environments.
Related Question 5
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.