Which cellular technology is described as older 2G technology?

The correct answer identifies CDMA as an older 2G technology. Code Division Multiple Access (CDMA) is a radio technology used for mobile communications and is associated primarily with 2G networks, specifically IS-95, which began deployment in the late 1990s.

CDMA operates by allowing multiple users to occupy the same physical channel by assigning unique codes to each call. This technology laid the groundwork for later developments in mobile communication, including its evolution into 3G technologies.

In contrast, LTE (Long-Term Evolution) and 5G represent more advanced generations of mobile networks, offering significantly improved speeds, capacity, and latency compared to 2G technologies. UMTS (Universal Mobile Telecommunications System) is part of the 3G family of mobile technology and follows the GPRS and EDGE enhancements to 2G, marking an advancement from the basic capabilities provided by older 2G systems.

Thus, recognizing CDMA as a key representative of 2G technology helps to understand the evolution of mobile communications and the distinctions between various generations of cellular technology.