You upgrade an ESXi 4.x host to an ESXi 5.x host using VMware Update Manager. It appears to complete the installaton, but the system does not boot. You decide to roll back the host to the previous build. Afer using the Shif-R opton on boot up, you receive the error "No alternatve hypervisor to roll back to". What is causing this error?

A. The hardware is not supported with the ESXi 5.x.

B. The ISO fle in the baseline is corrupt.

C. The data store containing the operatng system has become corrupt.

D. There are diferences in the boot loaders between the two versions.

According to the VCE Vblock System Upgrade Guide for vSphere 5.1, which two steps would be taken when upgrading vCenter to 5.1? (Choose two.)

A. Upgrade the host to ESXi 5.1.

B. Make a full backup of the vCenter Server database on the AMP.

C. Make a full backup of the vCenter Inventory Service database on the AMP.

D. Install Microsof SQL 2008 SP3 on the Single Sign-On (SSO) virtual machine.

Which three confgurable setngs are available directly through the DCUI? (Choose three.)

A. IP address

B. date

C. frewall ports

D. hostname

E. VLAN ID

You are asked to add two virtual machines to host ESXi01. The host IP address is 1t2.165.138.4. When

you atempt to access the host using the vSphere client, you receive the following error message?

The vSphere client could not connect to 1t2.165.138.4. You do not have permission to login to server

1t2.165.138.4.

What would generate this error message?

A. The wrong IP address was used in the vSphere client.

B. Lockdown mode is enabled on host ESXi01.

C. Host ESXi01 has been powered of.

D. Host ESXi01 is in maintenance mode.

While using the vSphere Client, you are experiencing high latency between issuing a search and obtaining a response from one of the four vCenter servers confgured for LinkedMode. When using the vSphere Web Client, the inventory tree does not load properly and ofen shows objects out of date. How would you improve the troubleshootng process

A. Update the logging level in vCenter to verbose, and restart the vCenter services.

B. Update the logging level for the Inventory Service to TRACE, and restart the Inventory Service.

C. Update the ESXi logging level to verbose, and restart the host.

D. Update the logging level for the Inventory Service to verbose, update the vCenter service to verbose, and restart all the services.