Name server is a server that handles queries regarding the location of a domain name’s various services such as website, emails and so on. It is also a part of the Domain Name System (DNS) which maintains a directory of domain names and translate them to IP addresses.
This means that when a user visits a domain, a DNS lookup first checks its name servers and reviews the DNS records for that domain accordingly.
To find your Cloud DataWorks name servers you will need to access your Client Area and go to Services. Click on the One of the Products. Then, on the page with the Hosting Information look at the Nameservers where you will see the pair of name servers for that account.