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What is a wireless sensor?
A Wireless sensor network, according to UbiBot, is a collection of devices that can exchange data gathered from a monitored field using wireless networks. The data is routed across numerous nodes and connects to other networks via a gateway, such as wireless Ethernet.
Is a hardware device with one or more antennae that permit communication between wired and wireless networks so wireless clients can send and receive data?
Network Interface card
What is the connection that uses public networks and their protocols to send data in a way that protects the data as well as a private network would but at a lower cost?
wireless icon cross but can surf internet
How does wireless devices works?
Wireless devices use radio frequency signals to communicate with each other through a wireless network. These devices have transmitters and receivers that send and receive data via radio waves, eliminating the need for physical wired connections. The devices interpret the radio frequency signals to transmit and receive information such as text, audio, or video.
How does a coaxial wireless transmitter function in transmitting data wirelessly?
A coaxial wireless transmitter uses radio waves to send data wirelessly. It converts electrical signals into radio waves, which are then transmitted through the air to a receiver. The receiver picks up the radio waves and converts them back into electrical signals, allowing the data to be received and understood.
What is the difference between analog data and wireless data?
Analog data can be send through a wire = wired data Analog data can be send through the air = wireless data). "Wireless data", as in: "data travelling through the air" is always analog because it propagates as a continuous EM wave through the air
What kind of technology do wireless networks use in order to send information?
Radio Waves
Is it safe to contact bank accounts using personal laptop through hotel wireless networks?
No. Definitely not. The encryption used to send data from your laptop to the hotels router is unbelivebly weak.
Does wireless networks must meet all the same security requirements of a wired LAN?
It's supposed to, but the problem with wireless networks that you can catch packets even if it was not send for you. Such problem was eliminated for wired networks a while ago, the solution is used in all routers. For wireless networks such solution cannot work in principle.
How do wireless communication systems send and receive signals?
on electromagnetic wavesThrough Tx and Rx devices which send signal to the station
How do wireless communication systems send receive signals?
on electromagnetic wavesThrough Tx and Rx devices which send signal to the station
What is the predominant technique used to send data on digital networks?
circuit switching.
