Question : DNS Resolver Cache on Windows Client Machines

I know that ipconfig /flushdns will clear the local DNS resolver cache on a Windows-based machine

The question is how often does the local DNS service refreshes itself automatically without manually having to use the above command?

Is it possible to remotely flush the DNS cache on all clients in a given domain?

Answer : DNS Resolver Cache on Windows Client Machines

My understanding is that the DNS cache entries are refreshed automatically only under 2 circumstances: (1) if the TTL of the entry has elapsed; or (2) if the MaxCacheEntryTtlLimit has been exceeded. Of course, it would also be refreshed if the machine is rebooted or if ipconfig /flushdns is run manually; or if the DNS Client service is restarted, too, I think. Off the top of my head, the only way I can think of to remotely flush the DNS cache on all clients in a domain would be to have some kind of scheduled task that would run on all machines at a specified interval or time of day.  That could be a lot of work to configure if its a large domain...