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What is an Ethernet?
The Ethernet topology was developed at the University of Hawaii to connect computers on the many Islands. It was radio based design. Later, Robert Metacalfe went to Xeros's Palo Alto Research Center (PARC) laboratories and eliminated the radio portion and altered to co-axial cabling. Ethernet is one of the most popular LAN technologies in use today covering more than 85% of the networks. Ethernet system having of three basic elements:
4. The physical medium use to carry Ethernet signals among computers on the network
5. A set of rules (protocols) embedded in every Ethernet interface that will decide how multiple computers on the network will have access to the data on the medium.
6. An Ethernet frame that having of a standardized set of bits used to carry data over the system.
Q. Modem stands for modulator - demodulator ? - Modulator are to creates an analog signal from binary data - Demodulator are to recovers the binary data from the modulated s
In point-to-point message passing, single process sends/receives message to/from another process. There are four communication modes for sending a message: i) Buffered mode
State the Nyquist theorem The Nyquist theorem is thermo of mathematics and has nothing to deal with technology. It says that if you have the function whose Fourier spectrum doe
Many instance of IGRP run on one physical router
What is a private IP address? Private IP addresses are allocated for use on intranets. These addresses are used for internal networks and are not routable on external public ne
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Architecture of Cisco IOS software Cisco IOS might not applications like ms word,multimedia softwares. It is mainly for switching data packet and concentrated on switching p
Transition Phases A PPP connection goes through phases which can be shown in a transition phase . Dead: In the dead phase the link is not being used. There is no ac
OBJECTIVES After reading this unit, you should be able to: Describe the basics of parallel programming; Explain the parallel programming based on message passing;
Explain how the lan model be developed The LAN model can be developed incrementally. If LAN is just a long cable. it cannot be brought down by single failure (if servers are re
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