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You work as a Server Administrator for company Inc. The company has a virtual server hosted on a
Windows Server 2016 server with the Hyper-V role installed.
You have upgraded an application on the virtual server. You experience that this upgrade causes problems.
Now, you want to quickly revert back to the point before the changes are made.
Which of the following will you use to accomplish the task?

A. Virtual Server Migration Toolkit

B. Checkpoints

C. Windows System Resource Manager

D. Logical unit number

Explanation:
In order to accomplish the task, you should use checkpoints. Snapshots have been improved in Windows
Server 2016 and are now called checkpoints.
Checkpoints are files that contain the configuration and data in a virtualized machine.
The Hyper-V Manager Console provides the facility to take a snapshot of a virtual machine running under
Hyper-V. This snapshot can be used to quickly roll-back the instance of an operating system when the
snapshot was taken. In state of any disaster such as malfunctioning virtual machine, these snapshots are
very helpful to recover from such situations.
Incorrect Answers:
A: The Virtual Server Migration Toolkit (VSMT), a command-line-based tool provided by Windows Server
2016, is used to migrate existing servers in the network environment to a virtualized partition of Windows
Server 2016. VSMT has been specially designed for administrators to handle small number of servers that
needs to be virtualized.
It however, cannot be used to manage these servers. It uses XML files to store configuration data during
the migration process. The tool is compatible with both the Hyper-V and the Virtual Server 2005 R2.
C: Windows System Resource Manager (WSRM) is a tool for resource management and enables the
allocation of resources, including processor and memory resources, among multiple applications based on
business priorities. With WSRM, a system administrator can set CPU and memory allocation policies on
applications, manage CPU utilization, and apply policies to users or groups on a Terminal Services
application server. WSRM also applies limits to process working set size and committed memory
consumption.
D: The logical unit number or LUN is the identifier of a SCSI logical unit, and by extension of a Fibre
Channel or iSCSI logical unit. A logical unit is a SCSI protocol entity, which performs classic storage
operations such as read and write. Each SCSI target provides one or more logical units. A logical unit
typically corresponds to a storage volume and is represented within a computer operating system as a
device.

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