Which technology covers areas larger than a WLAN and supports cellular technologies such as GSM and CDMA?

Which technology covers areas larger than a WLAN and supports cellular technologies such as GSM and CDMA?

• A. WLAN
• B. WMAN
• C. WWAN
• D. FH-CDMA

Answer: (C)

The main idea is about how large the coverage area is and whether the technology supports cellular-style mobility. A WWAN, or Wide Area Network, is designed to cover large geographic regions and to support cellular networks, including technologies like GSM and CDMA. This enables roaming across cities and regions, which is exactly what the question describes. WLANs are limited to small areas—think buildings, rooms, or campuses. A Wireless Metropolitan Area Network is larger than a WLAN and is often associated with technologies like WiMAX for city-wide coverage, but it isn’t inherently tied to traditional cellular standards such as GSM or CDMA. FH-CDMA is a spread-spectrum access method used in certain radio systems, not a wide-area network type that inherently provides cellular-style coverage. So, the choice that best fits covering large areas and supporting cellular technologies is WWAN.

The main idea is about how large the coverage area is and whether the technology supports cellular-style mobility. A WWAN, or Wide Area Network, is designed to cover large geographic regions and to support cellular networks, including technologies like GSM and CDMA. This enables roaming across cities and regions, which is exactly what the question describes.

WLANs are limited to small areas—think buildings, rooms, or campuses. A Wireless Metropolitan Area Network is larger than a WLAN and is often associated with technologies like WiMAX for city-wide coverage, but it isn’t inherently tied to traditional cellular standards such as GSM or CDMA. FH-CDMA is a spread-spectrum access method used in certain radio systems, not a wide-area network type that inherently provides cellular-style coverage.

So, the choice that best fits covering large areas and supporting cellular technologies is WWAN.