So I started studding for 70-411 and since a couple of colleagues have passed this exam with only Traning guide I went ahead and got it. As I did for 70-410 the author is really good and I really like the way he explains things but with 70-410 I did run into a lot of issues trying to follow him on the practices exercises (which are AWESOME hands on exp).
So now that I'm reading this one I wanted to make a post to either help me or help others that also read this book. I read the errata 
Training Guide: Administering Windows Server 2012 Confirmed Errata | O'Reilly Media before posting.
1st Issue I found is I get an error when running
Dism.exe /image:c:\mount /Add-Package /PackagePath:"c:\updates\Update for Windows Server 2012 (KB2756872)"
Processing 1 of 3 - Adding package c:\Updates\Update for Windows Server 2012 (KB
2756872)\AMD64-all-windows8-rt-kb2756872-x64_99dcb07efbf01d02bc5e8a2d49ec1dddfd7
86dfb.msu
[==========================100.0%==========================]
c:\Updates\Update for Windows Server 2012 (KB2756872)\AMD64-all-windows8-rt-kb27
56872-x64_99dcb07efbf01d02bc5e8a2d49ec1dddfd786dfb.msu: The specified image is n
o longer serviceable and may be corrupted.
Discard the modified image and start again.
Error: 0x80070005
Processing 2 of 3 -
c:\Updates\Update for Windows Server 2012 (KB2756872)\AMD64-all-windows8-rt-kb27
61094-x64_7f31aa2f3ba35dae806363e88c3757776b4a7266.msu: An error occurred applyi
ng the Unattend.xml file from the .msu package.
For more information, review the log file.
Error: 0x800f0830
Error: 5
The specified image is no longer serviceable and may be corrupted.
Discard the modified image and start again.
The command completed with errors.
For more information, refer to the log file.
I tried this like 3 times and I always get the same error I thought it was something I was doing but after so many attempts I don't know what im doing wrong. I google the issue but I cant find an answer. Is not a big deal but I just like to fix stuff i guess.
Edit: I am running CMD as admin.