Which of the following best describes the role of ports 137 and 139 in a network environment?
Ports 137 and 139 are used for directory services and file sharing over a network.
Port 137 handles NetBIOS name service and port 139 is reserved for RPC services to serve distributed applications.
Ports 137 and 139 are designated for remote desktop services to manage network sessions.
Port 137 is for NetBIOS name resolution and port 139 is for NetBIOS session service to communicate between computers.