You work in an international company which is named Wikigo. You are employed as the IT engineer. There’re many servers in your company and you’re in charge of server01. You have System Center Virtual Machine Manager (SCVMM) 2008 on server01 and you use it to manage a large virtual machine infrastructure.
There are two software update policies in the large virtual machine infrastructure. First you should ensure the automation of software update maintenance whenever possible. Second the critical updates for virtual machine are stored in the VMM library and you must apply them in an isolated environment. In order to deploy critical software updates to all virtual machines in the VMM library, which two of the following solutions should you choose? (Each correct answer presents part of the solution. Select two.)

A.
You should use a new VMM library for all maintenance hosts.

B.
You should use a new VLAN for all maintenance hosts.

C.
You should use Microsoft System Center Configuration Manager (ConfigMgr) 2007 and the Offline Virtual Machine Servicing Tool.

D.
You should use Microsoft System Center Operations Manager (OpsMgr) 2007 and the Offline Virtual Machine Servicing Tool.