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An administrator has been tasked with upgrading an existing host from ESX 4.1 to ESXi 5.x. The existing host has only vSwitch0 with all the default settings.
The upgraded host will have the following new requirements.
1. 116 virtual machines will be connected.
2. Four uplinks configured for port-based load balancing.
3. The switch will include a secondary heartbeat network for HA.
Which two statements are true about this configuration? (Choose two.)
A. The Service Console Port will be removed during the upgrade
B. The configuration requires only one VMkernel Port
C. The default vSwitch0 is sufficient for this configuration
D. A change to vSwitch0 Properties is required
Correct Answer: AC
Explanation/Reference:
Because ESXi 5.0 has no Service Console, migrating from ESX 4.x to ESXi 5.0 removes the Service Console port group.
After the migration to ESXi 5.0 a new port group is created: the Management Network port group.
By default a standard vSwitch has 120 ports for VM and vKernel NICs, and 8 reserved ports for the uplinks.
So a standard vSwitch would be enough: 116 for the VM’s and 2 (dual HA) for the vKernel NICs = 118 ports (less than 120) and 4 uplinks (less than 8) so everything fits on a standard vSwitch without any modification
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1008040 (article updated to include 5.0 and 5.1)
To account for overheads such as physical NIC ports (uplinks), CDP traffic, and network discovery, ESX 3.x, ESX/ESXi3.5.x, and ESX/ESXi 4.x allocate and reserve an additional eight ports per virtual switch beyond what is available for virtual machine use. This additional overhead is allocated regardless of the number of ports on the virtual switch, and accounts for the most common product deployment scenarios.