Home » VMware » VCP510 » Which networking feature should be configured on the ESXi host to improve iSCSI performance?
An administrator is configuring iSCSI for use with a vSphere environment. Which networking feature should be configured on the ESXi host to improve iSCSI performance?
A. Jumbo Frames
B. NetQueue
C. EtherChannel
D. PortFast
Correct Answer: A
Explanation/Reference:
Jumbo Frames can be used on a VMkernel port to allow for larger data payloads in fewer packets. Jumbo Frames can provide improved performance for IPbased storage and should be enabled when configuring an ESX Host for iSCSI. Jumbo Frames can be used on a VMkernel port to allow for larger data payloads in fewer packets.
EtherChannel is a Cisco feature that is used for switch-assisted load balancing. As such it is configured on the physical switch and is not an option that is configured on an ESX Host.
NetQueue can be configured on an ESX Host to take advantage of multiple receive queues to improve receive-side networking performance. It is enabled by default and does not require configuration.
PortFast is a Cisco feature that is used with Spanning Tree Protocol (STP). As such it is configured on the physical switch.
