Frame relay
Frame relay: A high-speed, packet-switched telecommunications network technology that was designed for cost-efficient data transmission for intermittent traffic between local area networks (LANs) and between endpoints in a wide area network (WAN). Because of its nature, it’s crucial to implement proper security measures, like encrypting data before transmission, to protect data integrity and prevent unauthorized […]
Freeware
Freeware: Software that is available for use at no monetary cost, typically distributed with a license that allows users to download, install, and utilize the software without any payment. Freeware may be proprietary, with the source code not available for modification or redistribution by users. It is often supported by voluntary donations, advertisements, or as […]
Frequency Analysis
Frequency Analysis: A method used in cryptanalysis to study the frequency of letters or groups of letters in a ciphertext. The technique is based on the fact that, in any given stretch of written language, certain letters and combinations of letters occur with varying frequencies. If an unauthorized entity conducts frequency analysis successfully, it can […]
Frequency Hopping
Frequency Hopping: A method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. This technique minimizes the risk of interference and interception, as it appears as short bursts of noise on any one channel. It is widely used in technologies like […]
Frequency
Frequency: The number of occurrences of a repeating event per unit of time. It is most often associated with waves, like radio waves, and determines the data transmission rate. High-frequency waves can transmit more data but may also be more susceptible to interception or interference, leading to potential data loss or unauthorized access.
Frequency-division Multiplexing (FDM)
Frequency-division Multiplexing (FDM): A technique used in the telecommunications field that allows multiple signals to be transmitted simultaneously over a single communication line or medium by allocating a unique frequency range to each signal. This separation of the total bandwidth into various non-overlapping frequency sub-bands reduces interference and enhances communication reliability. FDM finds wide usage […]