Certified Healthcare Technology Specialist (CHTS) Process Workflow & Information Management Redesign Practice Exam

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The Domain Naming System maps what to a domain name?

URL
Email Address
IP Address
MAC Address

The correct answer is: IP Address

The Domain Naming System (DNS) serves a critical role in mapping domain names to their corresponding IP addresses. In the context of the internet, while humans prefer to use readable domain names (like www.example.com), computers and networking devices communicate using numerical IP addresses (such as 192.0.2.1). When a user types a domain name into a web browser, the DNS is responsible for translating that human-friendly domain name into an IP address that the network can use to identify the correct server to connect to. This process is essential for routing the data to the right destination on the internet. The other options do not align with the primary function of the DNS. URLs are full web addresses that include the domain name and other elements, email addresses refer to a specific addressing format for sending emails, and MAC addresses are hardware identifiers for network interfaces on devices, which are not relevant to the mapping done by DNS. This emphasis on translating domain names to IP addresses underscores the fundamental operation of the DNS in enabling internet functionality.