Which of the following descriptions about the characteristics of virtualization is wrong?

Question

Options

• AIsolation, logical isolation between virtual machines, not affected by each other
• BSoftware and hardware are tightly coupled, virtualization depends on the underlying hardware, and
• CEncapsulation, which encapsulates the virtual machine into a file and saves it on the physical
• DPartitioning, the virtualization layer divides resources separately for each virtual machine

• A
  6% (3)
• B
  77% (37)
• C
  2% (1)
• D
  15% (7)

Explanation

Option B is wrong because one of virtualization's core strengths is precisely the decoupling of software from hardware - virtual machines can run independently of specific physical hardware, be migrated between hosts, and run on commodity hardware. Tight coupling between software and hardware is the defining problem that virtualization solves, not a characteristic it exhibits.

Why the distractors are correct (and thus not the answer):

• A (Isolation) is a genuine virtualization characteristic - VMs run in separate memory and resource spaces, so a crash or breach in one doesn't affect others.
• C (Encapsulation) is accurate - a VM's entire state (OS, apps, data) is stored as portable files (e.g., .vmdk, .ova), enabling snapshots and easy migration.
• D (Partitioning) is accurate - the hypervisor divides physical CPU, RAM, and storage into logical slices assigned to individual VMs.

Memory tip: Think of virtualization's four pillars as PIPE - Partitioning, Isolation, Portability (encapsulation), and hardware Emancipation (independence). If an answer claims virtualization requires specific hardware or binds software tightly to it, that contradicts the "E" - it's wrong.

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