Study tips VCP-410

What is most likely the cause for this issue?

In order to upgrade to vSphere 4,an ESX host must have a /boot partition of at least:

Before you upgrade an ESX host:

After upgrading an ESX host to vSphere 4, which of the following three actions should be taken (Choose Three)

which of the following?

Before you upgrade an ESXi host:

The vSphere 4 Host Update Utility provides a graphical user interface for (Choose Two):

Which of the following are true regarding the ESX Service Console file system structure (Choose Two)?

The following ESX versions are supported for direct upgrading to vSphere 4 (Choose Two):

Before you upgrade an ESX/ESXi host (Choose Three):