Which of the following statements are true regarding hardware-based virtualization? (Choose TWO correct answers.)

Question

Options

• AHardware-based virtualization relies on the host system's processor to call the hypervisor when
• BHardware-based virtualization implements a whole machine in software and therefore can run
• CHardware-based virtualization requires special support in the host system's hardware which is
• DHardware-based virtualization is not available on x86-based CPU architectures and requires

• A
  81% (25)
• B
  13% (4)
• D
  6% (2)

Explanation

Hardware-based virtualization uses CPU-assisted virtualization features to improve performance and isolation when running virtual machines. According to virtualization documentation, modern processors such as Intel VT-x and AMD-V provide special CPU instructions that allow the processor to trap and transfer control to the hypervisor when sensitive or privileged instructions are executed by a guest virtual machine. This behavior makes statement A correct. Additionally, hardware-based virtualization requires explicit CPU and chipset support, which is now standard in most modern x86-based systems. These hardware extensions reduce the need for complex software emulation and enable near-native performance for virtual machines. Therefore, statement C is also correct. Statement B describes full software emulation rather than hardware-assisted virtualization and is incorrect in this context. Statement D is false because hardware-based virtualization is widely available and heavily used on x86 architectures in enterprise, cloud, and desktop environments. Virtualization notes consistently highlight that hardware-based virtualization is the foundation for platforms such as KVM, Xen, VMware ESXi, and Hyper-V, making it a critical technology in modern computing. Thus, the correct answers are A and C.

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