ISC SSCP Certifications Exam SSCP

The coordination and management of the DNS is another key area requiring governance at the logical layer. In SY0-101 recent years, the DNS has been the focus of some of the most heated (and most interesting) debates over governance, largely due to the central role played by ICANN.21

Understanding the DNS

In order to understand some of the governance issues surrounding the DNS, it is first necessary to understand what the DNS is, and how it functions. Operating as a lookup system, the DNS allows users to CISSP use memorable alphanumeric names to identify network services such as the World Wide Web and email servers. It is a system that maps names (e.g., www.undp.org) to a string of four numbers separated by periods called IP addresses (e.g., 165.65.35.38).

Until 2000, the Internet had eight top-level domain names: .arpa, .com, .net, .org, .int, .edu, .gov and .mil. These domains are called generic top-level domains, or gTLDs. As the Internet grew, there were increasing calls for more top-level domain names to be added, and, in 2000, ICANN announced SSCP seven new gTLDs: .aero, .biz, .coop, .info, .museum, .name, and .pro. Another series of new gTLDs have also been announced recently, although not all of them are yet operational.