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Security Security is the protection of hardware software and data from unauthorized access. Restricted physical access to computer password protection limiting user priv
Q. What are the main categories based on which applications of computer network will be categorized? Ans: The main areas under which the applications for computer network will
Disadvantages of Fiber Optics - Installation/maintenance - Unidirectional - Cost
State the difference between Byte streams and message Byte streams and message are different. In a message stream, network keeps track of the message boundaries. In a byte stre
Explain Fiber-Optics cable. A cable with central glass tube covered with protective shield which transmit data using photons is fiber optics cable. These cables transmit data t
Define Encoder? A device or program that uses predefined algorithms to encode, or compress audio or video data for storage or transmission use. A circuit that is used to change
Reliable data transfer over a channel bit error rdt : 20 A more realist model of the underlying channel is one in which bits in packet may be computed. Such bit erro
Bridge A bridge operation sin both physical and data link layer of OSI model. At physical layer it works like repeater as it regenerates the signal and performs int
What is Multiplexing? Multiplexing is the set of techniques that permits the simultaneous transmission of multiple signals across a single data link.
Used in IP Networks to break up larger networks into slighter subnetworks. It is used to decrease network traffic, Optimized network performance, and make simpler management i.e. t
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