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QUESTION:
(a) Ethernet has grown in popularity in the recent years and is now used in LANs. Give three reasons for the success behind Ethernet.
(b) Ethernet uses the CSMA/CD multiple access protocol. Describe the features behind CSMA/CD.
(c) A bridge is a link layer device that stores and forwards Ethernet frames. One of its characteristics is that a bridge is self-learning. Bridges also do not offer protection against broadcast storms.
(i) Show, by means of a diagram, how a bridge learns.
(ii) Explain what is a broadcast storm is and how it can take place.
(d) Briefly describe the difference between store-and-forward and cut-through switches. Also, store-and-forward switches have an advantage over cut-through switches with respect to damaged frames. Explain what it is.
(a) Which PKI (Public Key Infrastructure) model is typically favored by business organization? (b) Give one possible use of the "extensions" field of an X.509 certificate
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(a) Mention the five main security services. (b) What is a passive attack? Give an example of passive attack? (c) What four types of active attacks and mention their respecti
Let me know the details of protocol tcp/ip
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