Selected MCQ

Current Question
In virtualization technology, what is the primary function of a hypervisor?
  • A. Allocating memory dynamically
  • B. Encrypting virtual disks
  • C. Creating and managing virtual machines
  • D. Balancing network traffic
Correct Answer: C
Explanation:
A hypervisor manages multiple virtual machines on a host system.
Related Question 1
What does a virtualization hypervisor do for virtual machines?
  • A. Provides storage space
  • B. Emulates hardware and runs multiple VMs
  • C. Encrypts the OS
  • D. Installs antivirus on VMs
Correct Answer: B
Explanation:
A hypervisor emulates hardware to create and run multiple virtual machines on one host.
Related Question 2
What is a primary function of a CDN (Content Delivery Network)?
  • A. To store user credentials
  • B. To distribute content globally with low latency
  • C. To encrypt all network traffic
  • D. To provide cloud compute instances
Correct Answer: B
Explanation:
A CDN replicates content to servers around the world, speeding up access for users.
Related Question 3
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 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
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.