Which of the following descriptions about bare metal server BMS is wrong?

Question

Options

• ABare metal servers and virtual machines have virtualization overhead, resulting in a certain loss of
• BBare metal servers are dedicated computing resources for users, and support VPC and security
• CBare metal servers are currently divided into two types according to the CPU architecture: x86
• DThe billing mode of BMS is yearly and monthly, and does not support pay-as-you-go

• A
  74% (26)
• B
  3% (1)
• C
  9% (3)
• D
  14% (5)

Explanation

Option A is the incorrect description because bare metal servers, by definition, have no virtualization layer and therefore incur zero virtualization overhead. That absence of overhead is precisely the key advantage bare metal servers offer over virtual machines -- conflating the two on this point is factually wrong.

Options B, C, and D are all accurate statements about BMS. Bare metal servers do provide dedicated, single-tenant computing resources with VPC and security group support (B). BMS offerings are indeed categorized by CPU architecture, covering both x86 and ARM types (C). And on Huawei Cloud specifically, BMS billing is restricted to yearly/monthly subscription models, with pay-as-you-go not supported (D).

Memory tip: Think of "bare metal" literally -- strip away the metal casing and there is no virtualization layer hiding underneath. Virtual machines share hardware through a hypervisor and pay the overhead cost; bare metal servers hand the physical hardware directly to one tenant, so there is nothing to cause overhead. If an answer says bare metal has virtualization overhead, it is wrong.

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