DRAG DROP
A company plans to upgrade from a SharePoint Server 2010 farm to a SharePoint Server 2013 farm.
You plan to install components that are required on the new farm before upgrading.
You need to identify the customizations that must be installed on the new farm.
Which command should you run? (To answer, drag the appropriate command and switch to the
correct locations in the answer area.)
Answer: 
Explanation:
Note:
Identify all server-side customizations and install them before you upgrade
One common error during upgrade is missing server-side files — either files that were installed with
SharePoint 2010 Products or customized files. When you prepared for upgrade, you should have
created an inventory of the server-side customizations (such as site definitions, templates, features,
Web Parts, assemblies) that your sites required. Check this inventory to make sure that all the files
that are needed for your customizations are installed in your new environment.You can use the enumallwebs operation in Stsadm.exe to identify server-side customizations that
are being used.
https://social.technet.microsoft.com/Forums/en-US/3e6a6d2e-0710-4c83-b8db-e508b1774309/while-migrating-from-moss-2007-to-sharepoint-2010-how-can-we-found-outidentify-what-are-the?forum=sharepointadminprevious
http://sharepointstepbystep.blogspot.com/2014/06/stsadm-complete-help-reference.html
Not the best references but they both generally show that the outcome of this command line should be what we are asking for..
In other words – Correct answer in my book
I’d like to say that this link pertains to this answer and the answer is right but I cannot say for certain.
http://sharing-the-experience.blogspot.co.uk/2011/08/stsadm-o-enumallwebs-includefeature.html
Not much info on this one, I would say from past experiences that this question more than likely will not be on the test if there is so little info on it through research..