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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.
Hashed strings can often be deciphered by 'brute forcing'. Bad news, eh? Yes, and particularly if your encrypted passwords/usernames are floating around in an unprotected file some
What is microfilm? This is a photographic reproduction of a document greatly decreased in size from the original on fine grain, high resolution film. Microfilm needs a reader f
1. countdown Example: countdown(5,[5,4,3,2,1]). NOTE - your function should be able to answer questions such as: ?- countdown(5,L). 2. count_occur Example: count_occur(7,[5,2,6
Minimize the logic function F(A, B, C, D) = ∑ m(1,3,5,8,9,11,15) + d(2,13) using NAND gate with help of K-map. Ans. Realization of given expression by using NAND gates: In
Illustrate about the single inheritance During inheritance, superclass feature may by override by a subclass defining that feature with the same name. The overriding features (
Suppose you work in a network security company, and you need to prepare a survey report of a particular security issue of wireless networking. To start with, select an area of wire
Redefines clause is used to permit the similar storage allocation to be referenced by dissimilar data names.
Define a console-program to make an array of integers. Initialize the array and assign the values in array. Describe a method to pass the array and alter array elements. show array
what are the featrures of doubly link list.??????/
Q. What is Bus arbitration? In this technique, I/O interface first needs to control bus and only after that it can request for an interrupt. In this technique because only one
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