Who is responsible to assign Public IP address?

The responsible organization to assign IP address is IntetNIC (Internet Network
Information Centre). This organization assigns public IP address to all individuals or organizations. But you can take IP address from ISP’s (Internet Service Providers), because ISP’s buys a pool IP addresses from InterNIC and then sells to others.
Note: Tracrt command traces the root (path) for which we are connecting.
Pathping is combination of tracert and ping. It displays path and some other information.
Note: When DNS stops you will see the event ID is 2.
When DNS starts you will see the event ID is 3.
When GC is enabled you will see the event ID 1119 on that particular server.
When time synchronization enabled you can see event ID’s 35 and 37.