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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:
QUESTION (a) Compare and contrast phishing and pharming attacks (b) Nowadays, web defacement may not always be visual (i) Explain web defacement (ii) What is the main
PARITY BIT: A parity bit is an extra bit transmitted with data item select to give the resulting bit odd or even parity. For example an even parity data packet 10100001 has p
Please see attached file
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code and logic
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POLICY MANAGEMENT Policies should be managed as they constantly change. Good policy development and maintenance make a more resilient organization. All policies undergo tremendou
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