What is a core function of geolocation technology?

Geolocation technology is primarily used to track a person's physical location. This capability is foundational to various applications that rely on knowing where a user is situated in real-time. It utilizes signals from GPS satellites, Wi-Fi networks, and cellular towers to pinpoint a user's geographic coordinates, enabling services such as navigation, location-based marketing, geotagging photos, and emergency services. By understanding a user's location, businesses can provide tailored services, enhance user experiences, and improve safety features.

The other options, while related to technology, do not directly describe a core function of geolocation. Identifying user preferences for browsing pertains more to user behavior analytics. Enhancing software performance relates to optimization processes and system efficiency. Encrypting user data during transmission is concerned with security rather than location tracking.