-- Exhibit —
-- Exhibit —
An administrator is unable to configure Receive Side Scaling on the vmnic driver in a Windows 2008 R2 guest.
Based on the exhibit, what would need to be modified to enable this option?
A. Manually configure a static MAC address
B. Enable DirectPath I/O
C. Ensure the vmnic is attached to the correct network
D. Change the adapter type to VMXNET3
Correct Answer: D
Explanation/Reference:
Explanation:
VMXNET 3 is a paravirtualized NIC designed for performance, and allows all the features offered in VMXNET 2 and includes a number of new features, such as multiqueue support (also known as Receive Side Scaling in Windows), IPv6 offloads, and MSI/MSI-X interrupt delivery.
Incorrect Answers:
A: Manually configuring a static MAC address will not allow for Receive Side Scaling to be configured on the vmnic driver in a Windows 2008 R2 guest.
B: DirectPath I/O enables a guest operating system on a virtual machine to access physical PCI and PCIe devices connected to a host directly. This will not allow for Receive Side Scaling to be configured on the vmnic driver in a Windows 2008 R2 guest.
C: The vmnic is attached to the correct network, but to achieve your goal you require the VMXNET3 adapter.
References:
Liebowitz, Matt, Christopher Kusek and Rynardt Spies, VMware vSphere Performance, Sybex, Indianapolis, 2014, pp 149, 150