You are troubleshooting a connectivity issue on a Windows OS and suspect it is DNS related. What command can be used to see if a DNS server has been assigned?
ipconfig is the Windows command tool to view network related configurations. Using ipconfig /all will display all network configuration information like a computer's IP addresses, DHCP servers, default gateways and known DNS servers.
Wikipedia
ipconfig (standing for "Internet Protocol configuration") is a console application program of some computer operating systems that displays all current TCP/IP network configuration values and refreshes Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS) settings.