Answer:
The answer is "Netlogon server".
Step-by-step explanation:
It is a process on Microsoft windows which verifies clients and other domain services. normal operating in the background, since it is a service and its not an application, only if it is disabled manually or from an error in runtime.
- It can interrupt or restart from both the command-line.
- It needed to be functioning to allow a secure channel to be formed between both the server and the DC, this also enables Dynamic DNS changes to operate.