Which two technologies are utilized in location-based services (LBS)?

Location-based services (LBS) leverage technologies that can accurately determine the position of devices or users and provide services based on that location. WLAN (Wireless Local Area Network) and GPS (Global Positioning System) are both pivotal in this context.

WLAN is significant because it can determine a device's location within a specific coverage area, particularly in indoor environments where GPS signals may be weak or unavailable. By using the signal strength from nearby access points, the system can triangulate a user's position.

GPS, on the other hand, is essential for outdoor positioning. It uses satellite signals to determine a device's precise location globally. This technology is widely used in navigation applications and various services that require geographical awareness.

Combining these two technologies allows for comprehensive coverage, enabling LBS to function effectively in both indoor and outdoor settings. The integration of WLAN and GPS thus provides a robust framework for delivering accurate location-based services, making this answer the most suitable choice.