SCCM Configmgr 2012 SSRS Report client policy request or Days Since Last Communication older for specific collection

  Being as SCCM Configmgr administrator,your primary aspect is to maintain health of your sccm clients for application deployment,software updates,inventory etc. Questions often come up in forums ,email list asking for ,list of computers not contacted the server since X days (25) or how do I know the clients who’s policy request is old or…