How policy will be replicated to one Domain Controller to other?
Check detailed explanation on Sysvol Replication change in Windows 2008
What is Group Policy template (GPT)?
Check Group Policy template
What is Group policy container (GPC)?
Check Group policy container
What is File Replication Services (FRS)?
Check File Replication Services
Sysvol Replication change in Windows 2008?
Check detailed explanation on Sysvol Replication change in Windows 2008
How Group Policy Processing over Slow Link?
http://www.windowstricks.in/2009/07/group-policy-processing-over-slow-links.html
What Tools used to edit the Group policy?
GPMC and GPedit
How to check applied policy details from Client or server?
RSOP.msc (only works windows 2003 and above)
GPRESULT /v
What is .adm file?
Administrative Template are required because Microsoft did not include all Registry settings in the default Group Policy, if you want to add more customized setting to existing policy then .ADM file can be created and imported to get the necessary setting
