Explanation & Hint:
- Wireless Metropolitan-Area Network (WMAN)
- Correct: WMANs often make use of devices mounted on buildings. These networks are designed to cover metropolitan areas and typically require the use of base stations or access points placed on tall structures, such as buildings or towers, to provide adequate coverage across the city.
- Incorrect: None. This is the correct answer.
- Wireless Wide-Area Network (WWAN)
- Correct: WWANs are designed to cover large geographic areas, such as entire cities or regions. However, they typically rely on cellular towers and infrastructure rather than building-mounted devices. So, the use of devices mounted on buildings is less common in WWANs.
- Incorrect: While WWANs can still provide wireless connectivity over a wide area, they are not primarily associated with devices mounted on buildings.
- Wireless Local-Area Network (WLAN)
- Correct: WLANs are typically used within a limited geographic area, such as a home, office, or campus. They often make use of access points installed within buildings to provide wireless connectivity, but the emphasis is on local coverage.
- Incorrect: While WLANs can indeed involve devices inside buildings, they are not designed to cover metropolitan areas, so the use of devices mounted on buildings for city-wide coverage is not common.
- Wireless Personal-Area Network (WPAN)
- Correct: WPANs are the smallest type of wireless network, designed for short-range connections between personal devices. They do not require devices mounted on buildings.
- Incorrect: None. This is the correct answer.
In summary, the correct answer is “Wireless Metropolitan-Area Network (WMAN)” because these networks often utilize devices mounted on buildings to provide wireless coverage over a city or metropolitan area. The other options are incorrect because they do not typically rely on building-mounted devices for their primary network infrastructure. |