A change was introduced in the company's DNS server, but local workstations have not applied it yet. Which of the following commands should the help desk technician use to force the workstations to…

nslookup is a network administration command-line tool for querying the Domain Name System (DNS) to obtain domain name or IP address mapping, but it doesn't modify local DNS settings or force cache updates.

netstat displays network connections, routing tables, and network interface statistics, which is unrelated to forcing DNS changes.

tracert (traceroute) displays the route and measures transit delays of packets across an Internet Protocol (IP) network, which is used for network troubleshooting, not for applying DNS changes.

The ipconfig command with the /flushdns switch clears the local DNS resolver cache, forcing the workstation to query the DNS server for fresh records. Subsequently, ipconfig /registerdns can be used to manually register the client's DNS information with the DNS server, ensuring workstations pick up the latest DNS changes.