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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

Explanation:
Using TSO and LRO on physical and virtual machine NICs improves the performance of ESX/ESXi hosts by
reducing the CPU overhead for TCP/IP network operations. The host uses more CPU cycles to run
applications.
If TSO is enabled on the transmission path, the NIC divides larger data chunks into TCP segments. If TSO is
disabled, the CPU performs segmentation for TCP/IP.
TSO is referred to as LSO (Large Segment Offload or Large Send Offload) in the latest VMXNET3 driver
attributes.
LRO reassembles incoming network packets into larger buffers and transfers the resulting larger but fewer
packets to the network stack of the host or virtual machine. The CPU has to process fewer packets than when
LRO is disabled, which reduces its utilization for networking.
https://kb.vmware.com/s/article/2055140

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