A typical example is the connection of the networks of two neighboring buildings. The laser has the problem of being sensitive to external conditions and vibrations in fact even these types of devices are considered in disuse and almost always replaced by connections via radio waves.
An Access Point IEEE 802.11b can communicate normally with 30 clients within a radius of 100 m based on specified Cell Tower Lease Rates. However, this characteristic varies depending on several factors, the positioning, the presence of obstacles, interference with other electromagnetic fields, the power of the devices. To increase the transmission distance, there are repeaters that amplify radio signals. In experimental conditions, wireless networks can reach a capacity of several kilometers.
Network security is not a single fixed term, but includes all measures for planning, execution and monitoring of security in networks.
These measures are not only technical, but also relate to the organization.
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