An administrator finds that the Microsoft Exchange virtual machines are exhibiting network latency.
What two in-guest changes can help decrease latency? (Choose two.)
A.
LRO
B.
TSO
C.
SR-IOV
D.
RVRDMA
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A and B are correct.
A) LRO
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-514BC149-CDE7-4E07-A922-E3DFB663DC13.html
To benefit from the performance improvement of LRO, enable LRO along the data path on an ESXi host including VMkernel and guest operating system. By default, LRO is enabled in the VMkernel and in the VMXNET3 virtual machine adapters.
B) TSO
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-E105A601-9331-496C-A213-F76EA3863E31.html
Use TCP Segmentation Offload (TSO) in VMkernel network adapters and virtual machines to improve the network performance in workloads that have severe latency requirements.
C) SR-IOV
Nothing to do inside a VM (Guest): https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-898A3D66-9415-4854-8413-B40F2CB6FF8D.html
D) RVRDMA
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-347B822E-5324-4DB3-A228-1F6A7AA871D2.html
Also just for Linux 64Bit atm
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For me B,C
https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.networking.doc/GUID-CC021803-30EA-444D-BCBE-618E0D836B9F.html
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B
https://docs.vmware.com/en/VMware-vSphere/5.5/com.vmware.vsphere.networking.doc/GUID-E105A601-9331-496C-A213-F76EA3863E31.html
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I think it is A , B because it says in-guest changes so C is wrong ,
Reference : https://kb.vmware.com/s/article/2055140
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