Which of the following commands can a technician use to identify the secondary DNS server address on a Windows network?

`ifconfig` is a command used on Unix-like operating systems (Linux, macOS) to configure and display network interface parameters, not Windows.

`netstat` displays active TCP connections, listening ports, Ethernet statistics, and routing tables, but not DNS server addresses.

`tracert` traces the route that packets take to a network destination, identifying the path and measuring transit times, but it does not display local DNS server configurations.

The `ipconfig` command in Windows provides detailed information about network adapters, including IPv4 and IPv6 addresses, subnet masks, default gateways, and crucially, the DNS servers configured for each adapter. Running `ipconfig /all` will explicitly list all configured DNS server addresses, including secondary ones.