DNS uses UDP instead of TCP If a DNS packet is lost there is

DNS uses UDP instead of TCP. If a DNS packet is lost, there is no automatic recovery. Does this cause a problem? Why or why not?

As UDP is connectionless so no overhead of setting connections. if a DNS packet is lost ,there is no automatic recovery but this problem can be handled by retrasmitting the packet .if one server fails you can re request from another server.If the packet is lost it can be requested again and again.