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Difficulty: MediumNetwork Components Roles and Functions

A network engineer is configuring a virtualized data center host to support multiple enterprise server workloads. The installation utilizes a bare-metal (Type 1) hypervisor to manage virtual machine (VM) compute and virtual switch networking features. Which statement accurately describes the operational role and architecture of a Type 1 hypervisor in this deployment?

  1. A
    It executes as a software application on top of an existing host operating system, passing virtual machine network requests through the host OS stack.
  2. It runs directly on the bare-metal physical hardware, managing hardware resources and virtual switch packet forwarding without an underlying host operating system.Answer
  3. C
    It relies entirely on connected upstream physical Layer 2 switches to perform frame forwarding between virtual machines hosted on the same physical server.
  4. D
    It utilizes Layer 2 neighbor discovery protocols such as CDP or LLDP to dynamically assign IPv4 addressing and default gateways to guest virtual machines.

Answer

A Type 1 hypervisor runs directly on the bare-metal physical hardware, managing hardware resources and virtual switch packet forwarding without an underlying host operating system.
A Type 1 hypervisor (such as Cisco UCS ESXi or KVM) installs directly onto the bare-metal hardware of a host machine. It provides direct hardware control, lower latency, and embedded software vSwitching capabilities to switch network frames between guest virtual machines and uplink to physical network infrastructure.

Step-by-Step Solution

1
Identify hypervisor architectural types
Recognize that Type 1 hypervisors are bare-metal systems installed directly on host server hardware, whereas Type 2 hypervisors run inside a conventional host operating system.
Understanding the installation layer determines resource efficiency and management responsibilities.
2
Evaluate internal networking and component roles
A Type 1 hypervisor abstracts physical Network Interface Cards (NICs) and creates software virtual switches (vSwitches) to forward frames directly between co-located virtual machines.
Virtual switches handle local Layer 2 communication directly within host memory.

Key Concept

Hypervisor Types and Virtualization Architecture
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Topics

Network Components Roles and Functions

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