Your network contains an Active Directory domain named contoso.com. The domain contains a server named
Server1. Server1 runs Windows Server 2012 and has the Hyper- V server role installed.
On Server1, you create and start a virtual machine named VM1. VM1 is configured as shown in the following
table.
You plan to create a snapshot of VM1.
You need to recommend a solution to minimize the amount of disk space used for the snapshot of VM1.
What should you do before you create the snapshot?
A.
Run the Stop-VM cmdlet.
B.
Run the Convert-VHD cmdlet.
C.
Decrease the Maximum RAM
D.
Decrease the Minimum RAM.
Explanation:
Reducing the available RAM for the VM would reduce the size of the snapshot.
Note:
* A disk snapshot is a copy of the virtual machine disk file at a certain point in time. It preserves the disk file
system and system memory of your virtual machine byenabling you to revert to the snapshot in case
something goes wrong.
* Each snapshot consists of the following files:
Configuration file – An XML file containing the current configuration settings of the virtual machine.
Saved state file – A .vsv file containing virtual machine state information. Differencing disk image file – A .avhd
differencing disk. Memory image file – A .bin file containing an image of the virtual machine’s memoryat the
point the snapshot was taken.
Incorrect:
Not D: Convert-VHD
Converts the format, version type, and block size of a virtual hard disk file
Found a lot source mention answer is A
Reducing the available RAM for the VM would reduce the size of the snapshot,what better than have the machine turn off, not using any memory
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If the VM is running, you can only increase max RAM or decrease min RAM. To decrease max RAM you need to turn off the VM.
So A.
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B.
Changing RAM doesnt do anything for snapshot size.
But using a dynamic disk will.
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not it doesn’t. A snapshot leave the disk as it is and will start writing in a avhd file, regardless if the disk is fixed or dynamic.
dynamic could help when you need to minimize the diskspace for the VM, but the question says to minimize for the snapshot/checkpoint.
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It’s “A” Dude, don’t try to confuse people please.
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Truth! You are my favorite <3
Johnny is correct. If you stop the VM it doesn't use *any* RAM… so I don't know about the rest of you but that sounds like the best option if you are trying to minimize the space used for the snapshot.
"Snapshots can also be created when a VM is turned-off, in which case Hyper-V does not need to capture VM memory or processor state data."
More info here: http://www.virtualizationadmin.com/articles-tutorials/microsoft-hyper-v-articles/general/how-use-hyper-v-snapshot-revert-apply-delete-options.html
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A definitely!
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The Max RAM cannot be decreased while the VM is running, additionally if you take a snapshot while the VM is running the content of the RAM will be saved with the snapshot thus increases the snapshot size, so the answer is A. Run the Stop-VM cmdlet.
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Stop-VM and shutdown (don’t save)
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The correct answer is B, like Dude mentioned feb 20th. The dynamic disk only uses what is needed, therefore the snapshot will only occur on the current drive size. in the case of a fixed drive, the snapshot occurs on the entire drive itself. So the step is convert the drive to a dynamic state.
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A.
A snapshot/checkpoint doesn’t make a copy of a disk. It stops writing to the current diskfile and will create changes to the disk in an avhd file. When you delete a snapshot, the changes are written to the original disk.
This happens for both fixed and dynamic. So disk config doesn’t matter at all.
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The key word used in the scenario is FIXED size. You need to convert the VHD to dynamically sized.
Correct Answer is B
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You can not convert disk while VM is running, you must to stop VM before changing disk type: http://www.dell.com/support/article/us/en/19/SLN132078/EN
So B is not correct, must be A.
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