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Question:
a) Explain what the following intermediate systems are and how they work?
i. Repeater ii. Bridge
b) A service is formally specified by a set of primitives (operations) available to a user or other entity to access the service.
i. Examine the differences between connection-oriented service and connectionless-oriented service.
ii. How is a reliable service determined?
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Network security is an issue for companies regardless of whether they participate in electronic commerce; however, since most organizations have a Web site that allows some interac
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WHICH OF THE PRODUCT OF llc sublayer
(a) Explain the two possible configuration for 3DES. (b) What is the main disadvantage of 3DES? (c) Why are most modern symmetric algorithm block ciphers? (d) Describe
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(a) Describe the concept of zero knowledge proofs. Give a practical example. (b) Explain how a one way hash function works. (c) What are message authentication codes? (d)
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