350-401 Question #58: Real Exam Question with Answer & Explanation

Question

Which statement explains why Type 1 hypervisor is considered more efficient than Type 2 hypervisor?

Options

• AType 1 hypervisor runs directly on the physical hardware of the host machine without relying on
• BType 1 hypervisor enables other operating systems to run on it
• CType 1 hypervisor relics on the existing OS of the host machine to access CPU, memory, storage,
• DType 1 hypervisor is the only type of hypervisor that supports hardware acceleration techniques

Explanation

Type 1 vs. Type 2 Hypervisor Efficiency

Option A is correct because a Type 1 (bare-metal) hypervisor installs and runs directly on the physical hardware, eliminating the need for an underlying host operating system. This direct access to CPU, memory, and storage resources removes a layer of abstraction, reducing overhead and improving performance and efficiency. Option B is incorrect because both Type 1 and Type 2 hypervisors can run guest operating systems - this is not a distinguishing feature of efficiency. Option C actually describes a Type 2 hypervisor (hosted hypervisor), which does rely on the host OS to access hardware, making it the less efficient option due to that extra layer. Option D is incorrect because hardware acceleration support is not exclusive to Type 1 hypervisors; both types can leverage such techniques.

🧠 Memory Tip:

Think of it this way - Type 1 = "First class" (direct access, no middleman), Type 2 = "Second class" (must go through the host OS first). The fewer the layers between the hypervisor and the hardware, the greater the efficiency.

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