DNS is conceptually like translating a street address to GPS coordinates. Which option represents the GPS coordinates concept?

• A. GPS coordinates
• B. IP address
• C. Email address
• D. MAC address

Answer: (A)

The idea being tested is how a human-friendly name is turned into a precise locator that can be used to reach a resource. In the street address to GPS coordinates analogy, the GPS coordinates represent that exact locator. The option that most directly embodies that idea is the GPS coordinates itself, because it stands for the precise locational data needed to find the target. The other kinds of addresses—an IP address is the actual network locator, email addresses are for routing messages, and MAC addresses identify hardware—do not capture the specific concept of a precise location in space the way GPS coordinates do, so they don’t fit as well in this analogy.