2V0-16.25 Question #43: Real Exam Question with Answer & Explanation

Question

Options

• AEncrypting all data processed by a virtual machine on the operating system level.
• BIsolating memory access from the operating system and applications running in a virtual machine.
• CAllowing virtual machines to be live migrated between physical servers with Intel and AMD
• DAllowing virtual machines (VMs) to use hardware resources without being tied to specific physical

Explanation

Hardware abstraction means the virtualization layer (hypervisor) sits between VMs and physical hardware, presenting a standardized virtual hardware interface regardless of what actual hardware sits underneath - this is exactly what option D describes. VMs can run without caring whether the underlying CPU is Intel or AMD, what storage controller model exists, or which NIC is installed; the hypervisor handles the translation.

Why the distractors are wrong:

• A is about encryption at the OS level - that's a security/encryption feature (like BitLocker or VM encryption), not abstraction.
• B describes memory isolation/protection, which is a VM containment/security concept, not hardware abstraction.
• C is close but describes CPU compatibility for live migration (vMotion), which is a benefit enabled by abstraction - not the definition of abstraction itself.

Memory tip: Think of abstraction as a "universal adapter" - just as a travel adapter lets you plug any device into any outlet worldwide, hardware abstraction lets any VM plug into any physical server. The key phrase to anchor on is "not tied to specific physical hardware."

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