Selected MCQ

Current Question
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 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
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 3
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 4
What is a key advantage of containerization (e.g., Docker) over traditional virtualization?
  • A. Higher security isolation
  • B. Finer-grained resource allocation
  • C. Quicker startup with less overhead
  • D. Automatically encrypts data at rest
Correct Answer: C
Explanation:
Containers share the OS kernel and are lightweight, allowing rapid startup with minimal overhead compared to full VMs.
Related Question 5
What is the main purpose of a type-1 (bare-metal) hypervisor?
  • A. Runs on an OS to host VMs
  • B. Directly runs on hardware to host VMs
  • C. Monitors network traffic
  • D. Provides antivirus protection
Correct Answer: B
Explanation:
A type-1 hypervisor runs directly on hardware (bare metal) to host virtual machines.