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What is virtual channel?
Virtual channel is normally a connection from single source to one destination, although multicast connections are also allowed. The other name for virtual channel is virtual circuit.
10Base5 - Thicknet A rigid coaxial cable (RG-8) approx 0.4 in' thick used in the original Ethernet networks Bus topology LAN utilize base signalling with a maximum se
Explain RIB?
Repeaters - Operate only in physical layer - Connects two segments of the same LAN - Both segments must be of the same protocol - Only forwards frames; does not filter
What are IP addresses? IP address refers to the name of a computer on a network, like the Internet. An Identifier for a computer or device on a TCP/IP network, like the
Write the Generic Name of the OSI Layer a) The figures below illustrate, side by side, the OSI 7-layer reference model and the Internet protocol stack. Inside each box represen
What is piggybacked ACK The protocol will be incorrect. Suppose that 3-bit sequence numbers we are using. Consider following situation: A just send frame 7. B gets frame
QUESTION (a) Briefly describe three security requirements of an agent (b) List four threats that may be caused by malicious hosts to mobile agents (c) Describe the forwar
Physical Media In order to define what is meant by a physical medium let us reflect on the brief life of a bit. Consider a bit travelling from one end system through a serie
What are firewalls? Firewalls serve to protect an internal network from external attacks. These external threats can be hackers who need to steal data or computer viruses that
Error Detection-- CRC Powerful error detection system Rather than addition, binary division is utilized A series of redundant bits called "CRC" or else "CRC remai
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