Selected MCQ

Current Question
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 1
Which of the following is a widely used virtualization platform for managing virtual machines on cloud infrastructure?
  • A. Docker Engine
  • B. Kubernetes
  • C. Hyper-V
  • D. Apache Hadoop
Correct Answer: C
Explanation:
Hyper-V (by Microsoft) is a hypervisor for creating and managing virtual machines.
Related Question 2
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 3
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 4
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 5
In IoT, what is MQTT primarily used for?
  • A. Hardware design
  • B. Lightweight messaging protocol
  • C. Database management
  • D. Encryption standard
Correct Answer: B
Explanation:
MQTT is a lightweight publish/subscribe messaging protocol widely used in IoT.