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Q. Explain Frequency-division multiplexing?
Frequency-division multiplexing (FDM) is a technique for data transmission widely used in telephone, radio, and cable TV systems in which the transmission frequency spectrum (i.e., bandwidth) is divided into smaller bands known as subchannels.
Data transmission between two stations can be achieved in either simplex, half-duplex, or full-duplex mode. In a simplexmode,mainly used in radio and TV broadcasts, information travels only in one direction. Thismode is rarely used in data communications. In half-duplexmode, used by radio communications, information may travel in both directions, but only in one direction at a time. The transmitter becomes the receiver and vice versa. In a full-duplex mode, information may travel in both directions simultaneously. This mode, used in telephone systems, adopts two different carrier frequencies.
Explain about the network security. Network security implies the protection of networks and their services through unauthorized access, destruction or disclosure, modificati
1's complement representation of decimal number of -17 by using 8 bit representation is ? Ans. (17) 10 = (10001) 2 In 8 bit = 00010001 1's Complement = 11101110
Q. Illustrate Minimization of Gates? The generalization of Boolean expression is much useful for combinational circuit design. The subsequent three techniques are used for this
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Cluster is said to be collection of queue manager's logically linked together to balance the load on the remote machine (i.e if it is remote queue managers which processes your mes
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What is the functionality of Remote Login? Remote Login gives similar functionality of telnet, along with the added functionality of not involving a password from trusted cli
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