Which command is used to check the DNS IP Address for a TLD?

The command used to check the DNS IP Address for a top-level domain (TLD) is "nslookup." This utility is specifically designed for querying DNS (Domain Name System) records to retrieve information about domain names, including their associated IP addresses.

When you use nslookup with the proper options and a TLD name, the command queries the DNS server to retrieve information regarding the DNS records for that domain. It provides the IP address associated with the TLD, as well as other information such as the authoritative DNS servers responsible for that TLD. This is especially useful for troubleshooting and verifying DNS configurations.

In contrast, the other commands serve different purposes. The "ping" command is primarily used to test connectivity to a host on a network by sending ICMP echo request packets. "dig" is also a DNS query tool but is typically more advanced than nslookup and provides detailed information about DNS responses, while "traceroute" is used to determine the path that packets take to reach a specific host, showing the route and all intermediary hops along the way. Each command has its specific use case within networking, but for directly querying DNS information like the IP address of a TLD, nslookup is the most appropriate tool.