What uses radio signals to communicate with a tag placed in or attached to an object?
What device sends and receives radio signals?A transmitter is a separate electronic component that generates a radio frequency (RF) current or radio waves. These waves are used in communication systems to transfer data like audio, video, etc. A transceiver, on the other hand, can both send and receive digital signals.
Which of the following is a wireless transmission medium that distributes radio signals through the air over long distances?Broadcast radio is a wireless transmission medium that distributes radio signals through the air over long distances such as between cities, regions, and countries and short distances such as within an office or home.
Which device should ideally be used as the central communication point for the network?An ethernet switch is a device that provides a central connection point for cables from workstations, servers, and peripherals. In a star topology, twisted-pair wire is run from each workstation to a central switch/hub.
Is RFID a network protocol?RFID is a network protocol used in credit cards, smartphones, and tickets to facilitate close-range communication. Near field communication (NFC) is used in credit cards, smartphones, and tickets to facilitate close-range communication.
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