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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.
A doubly linked list is like a linked list except that each node has a pointer both to the next node in the list and to the previous node in the list. There are also pointers to th
Using ARQ, a sending modem must wait for a return ACK for each sent block before sending the next block. (A) discrete (B)
Q. Create a Web page from which customers can order equipment? Suppose your boss wants you to create a Web page from which customers can order computer equipment. You need to c
The main features of TCP are: Reliability: TCP makes sure that any data sent by a sender arrives at destination as it was sent. There can't be any data loss or change in the
Minimize the following logic function using K-maps and realize using NAND and NOR gates. F(A,B,C,D) =?_m(1,3,5,8,9,11,15) + d(2,13).
How does VB.NET/C# achieve polymorphism? VB.Net / C# give polymorphism through the following mechanisms: 1. Inheritance - base class gives overridable methods which are re-
What is Organizational Structure? A business organization may be structured in many dissimilar ways, depending upon the environment within which it handles. There is always
What is a subroutine? A subroutine is a named, independent section of C code that performs a particular task and optionally returns a value to the calling program.
Q. Explain about Multiple Program Multiple Data? Like SPMD, MPMD is in fact a 'high level' programming model that can be built on any combination of previously described parall
what is distortion
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