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QUESTION 191
You have a new server named Server1 that runs Windows Server 2012 R2. Server1 has two dual-core processors and 32 GB of RAM. You install the Hyper-V server role on Server1. You create two virtual machines on Server1 that each have 8 GB of memory. You need to minimize the amount of time it takes for both virtual machines to access memory. What should you configure on each virtual machine?
A. Resource control
B. Dynamic Memory
C. NUMA topology
D. Memory weight
Answer: B
Explanation:
* Dynamic Memory is a new Hyper-V feature that helps you use physical memory more efficiently. With Dynamic Memory, Hyper-V treats memory as a shared resource that can be reallocated automatically among running virtual machines. Dynamic Memory adjusts the amount of memory available to a virtual machine, based on changes in memory demand and values that you specify. Dynamic Memory is available for Hyper-V in Windows Server 2008 R2 Service Pack 1 (SP1).
* Dynamic Memory helps you use memory resources more efficiently. Before this feature was introduced, changing the amount of memory available to a virtual machine could be done only when the virtual machine was turned off. With Dynamic Memory, Hyper-V can provide a virtual machine with more or less memory dynamically in response to changes in the amount of memory required by the workloads or applications running in the virtual machine. As a result, Hyper-V can distribute memory more efficiently among the running virtual machines configured with Dynamic Memory. Depending on factors such as workload, this efficiency can make it possible to run more virtual machines at the same time on one physical computer.
Reference: Hyper-V Dynamic Memory Configuration Guide