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Ethernet is a commonly used LAN technology. It was discovered at EXROX PARC(Palo Alto Research Center) in 1970s.Xerox, Intel and Digital described it in a standard so it is also known DIX standard. The standard is now started by IEEE in which 802.3 standard of IEEE describe formats, voltages of cable length etc.
The Ethernet needs bus topology. It needs a single coaxial cable. To which multiple devices connect. One Ethernet cable is sometimes known a segment. This segment is fixed to 500 meters in length. The minimum distance between connections is 3 meters.
ETHERNET SPEEDS:
The Ethernet speed was approximately 3Mbps, and the current standard is 10Mbps the fast Ethernet performs at 100Mbps. There are also gigabits Ethernet state now.
ENCODING USED IN ETHERNET:
The encoding needed in Ethernet is Manchester encoding. It uses signal modifies to encode data. e.g. A modification from positive voltage to 0 encodes as given in the figure below:
Implementing an effective online authentication scheme in practice faces many challenges. Systems with highly sensitive data often require multifactor authentication. But, requirin
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In this assignment, you are required to emulate the operation of a link layer and network layer protocols in a small computer network. Your program should behave like a single node
COLLISION: The receiver can get simultaneous requests, which gives in collision at receivers and both service lost and in this way no transmitter accepts reservations and both use
differentiate between internet and www
Simplex data exchange Simplex communication defines to communication that happens in one direction only. Two definitions have made over time: a common definition, which is des
This assignment aims to enhance students' understanding of the network protocol hierarchy and flow control and error control techniques by implementing a sliding window protocol in
- Alice, Bob and Charlie have a secret key a=3, b=4, c=5, in that order. - They would like to find a common secret key using Diffie-Hellan key exchange protocol (with g=2, p=5).
NSTISSC SECURITY MODEL The NSTISSC Security Model provides a detailed perspective on security. While the NSTISSC model covers the 3 dimensions of information security, it removes
Question : (a) State whether the following statement is FALSE or TRUE: It is always better to have various access points to the Internet so that if a hacker takes one down you
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