A field technician is configuring a hypervisor host workstation equipped with 32\text{ GB}… — CompTIA A+ (Core 1 & Core 2)

A field technician is configuring a hypervisor host workstation equipped with $32\text{ GB}$ of physical RAM to run four concurrent virtual machines (VMs) for software testing. Each guest VM requires $8\text{ GB}$ of dedicated RAM, and the host operating system requires a reserved minimum of $4\text{ GB}$ of physical RAM to ensure system stability. What is the minimum amount of additional physical RAM that must be installed in the host workstation to support this deployment?

$4\text{ GB}$ Answer
B
$8\text{ GB}$
C
$0\text{ GB}$ , provided dynamic RAM ballooning is enabled
D
$12\text{ GB}$

Answer

The host workstation requires a minimum of

4\text{ GB}

of additional physical RAM to run four guest VMs of

8\text{ GB}

each alongside the

4\text{ GB}

host OS memory reserve.

Four VMs requiring

8\text{ GB}

each demand

32\text{ GB}

of RAM. Adding the mandatory

4\text{ GB}

host OS memory overhead brings the total system requirement to

36\text{ GB}

. Since the host currently has

32\text{ GB}

installed, a minimum addition of

4\text{ GB}

of physical RAM is necessary to prevent memory starvation.

Step-by-Step Solution

Calculate total memory required for all guest virtual machines.

4 \text{ VMs} \times 8\text{ GB/VM} = 32\text{ GB}

Each guest VM requires dedicated RAM allocated for its guest operating system and applications.

Add the mandatory host operating system memory overhead.

32\text{ GB (guests)} + 4\text{ GB (host reserve)} = 36\text{ GB}

total system requirement.

The hypervisor and host OS require dedicated physical RAM to avoid paging and system instability.

Subtract currently installed physical RAM from total system requirement.

36\text{ GB (total required)} - 32\text{ GB (installed)} = 4\text{ GB}

additional RAM required.

Determines the exact hardware capacity deficit.

Key Concept

Virtual Machine RAM Capacity Planning and Host Overhead

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

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