The DNS server is a program running on another Internet host that keeps domain name to Internet address translations. Hold on tight. The traceroute program is used to determine the path that messages might take from one machine to another. Each link in this path is called a hop. Traceroute lets us look at the path a message might take through this chain of routers to get to its destination.
Some interpretation is in order.
The second column is the domain name if available. The third column is the internet address. Try running traceroute on a destination of your choosing. Don't choose the one in the example, because everyone else will and the poor machine at the hurricane center will be swamped. With the proper set of options, ping tells you a bunch more.