TestOut LabSim A+ Certification Practice Exam

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Which of the following is NOT an example of wireless networking communications?

Wi-Fi
Bluetooth
DSL
Zigbee

The correct answer is: DSL

The correct choice is DSL, which stands for Digital Subscriber Line. This technology is a method of transmitting digital data over the wires of a local telephone network. It primarily uses copper telephone lines to provide internet service and operates through a wired connection rather than a wireless one. In contrast, Wi-Fi, Bluetooth, and Zigbee are all examples of wireless communication technologies. Wi-Fi is commonly used for local area network (LAN) connections to provide internet access, Bluetooth enables short-range data exchange between devices, and Zigbee is utilized for low-power, low-data-rate applications in areas like home automation and industrial controls. Each of these technologies facilitates communication without the need for physical cables, showcasing the characteristics of wireless networks.