The access control department creates a process to grant elevated administrator privileges for only a certain amount of time for a specific administrator task in an IaaS-hosted VM resource. Which of the following access control method is used?

Which of the following does the administrator use to consolidate all the VMs into a single IP while allowing access to the Internet?

Before doing a change on a VM, a systems administrator wants to ensure there is an easy and fast way to rollback if needed. The change and testing should take approximately two hours. Which of the following is the EASIEST way to meet this requirement?

A company is seeking a new backup solution for its virtualized file servers that fits the following characteristics:
* The files stored on the servers are extremely large.
* Existing files receive multiple small changes per day.
* New files are only created once per month.
All backups are being sent to a cloud repository.
Which of the following would BEST minimize backup size?

A cloud administrator is securing an application hosted by an IaaS provider. The operating system on the VM has been updated. Which of the following should the administrator use to BEST secure the VM from attacks against vulnerable services regardless of operating system?