What is a domain name?

A domain name is indeed a combination of letters and numbers that identifies a specific location on the Internet. It serves as a human-readable address for websites, allowing users to easily access online content without needing to remember a complex numerical IP address. For example, "www.example.com" is a domain name that directs users to a particular website.

Domain names are structured in a hierarchical format, typically consisting of a second-level domain (like "example") and a top-level domain (like ".com"). This structure is essential for Internet navigation, enabling users to find and connect to websites quickly and effectively.

The other options presented do not accurately define what a domain name is. A unique identifier for a specific legal case pertains to case law rather than internet terminology; a type of corporate registration relates to business formation and compliance; and a legal term for naming a corporation focuses on corporate law, which does not involve the digital context of identifying a website. Understanding domain names is crucial for comprehending the infrastructure of the Internet and how websites are accessed by users worldwide.