What is the function of VMware ESXi Hypervisor?

Question

Options

• AIt allows server storage to be fragmented into several virtual disks that can be shared between different
• BIt allows server virtualization and thus allows applications to run co-resident on the same physical server.
• CIt allows server virtualization and defines the number of applications that can run co-resident on the same
• DIt allows server memory and CPU to be virtualized and shared between several applications.

• A
  3% (1)
• B
  94% (31)
• D
  3% (1)

Explanation

VMware ESXi is a Type 1 (bare-metal) hypervisor that installs directly on physical server hardware, enabling server virtualization - meaning multiple virtual machines can run simultaneously (co-resident) on the same physical server, each with its own OS and applications. This makes B correct: it accurately captures ESXi's core purpose without adding false constraints.

Why the distractors are wrong:

• A describes storage virtualization (e.g., SANs or vSAN), not ESXi's primary role as a hypervisor.
• C is close but wrong because ESXi does not define a fixed number of co-resident applications - VM count depends on available hardware resources, not the hypervisor itself imposing a limit.
• D is partially true (ESXi does abstract CPU and memory), but it's incomplete and misleading - ESXi virtualizes the entire server (compute, memory, storage, networking), and the key concept is virtualization enabling co-residency, not just sharing resources.

Memory tip: Think of ESXi as a "hotel manager" - it lets multiple guests (VMs with their apps) live in the same building (physical server) independently, without knowing about each other.

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