Final answer:
In DNS, names are defined in a hierarchical tree structure, not a linear list.
Step-by-step explanation:
True. In DNS (Domain Name System), names are defined in a hierarchical tree structure, not a linear list. The DNS system organizes domain names into zones, with each zone containing a set of records that define the corresponding names.
For example, the top level of the hierarchy is the root zone, represented by a single dot (.), followed by top-level domains (TLDs) like .com or .org, and then subdomains and individual host names. Each level in the hierarchy is separated by periods (dots) in the domain name.
In this way, DNS provides a distributed naming system that allows the Internet to function efficiently and provides a scalable solution for resolving domain names to IP addresses.