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Explain the importance of authentication.
Authentication is the method of verifying a user's credentials before he can log into the network. It is normally performed using a username and password. This gives a secure means of limiting the access from unwanted intruders on the network.
a) Consider a hypothetical arrangement of ‘self-learning' bridges shown in the figure below. Assuming all are initially empty, give the forwarding tables for each of the bridges B
There is no commonly accepted meaning for a TP monitor. According to Jeri Edwards' a TP Monitor is "an OS for transaction processing".
Can you define the concept of VLSM?
This example demonstrates the use of parallel sections construct. The three functions, fun1, fun2, and fun3, all can be executed concurrently. Note that all the section directives
5. Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frame are 25 bytes long. Calculate the efficiency of Stop-and-Wait ARQ in a system t
Q. Show the TCP/IP and OSI Similarities? TCP/IP and OSI Similarities - Both have Layers - Both have Application Layers - Have Comparable Transport and Network Layer
How is computer networks used in marketing and sales, financial services, teleconferencing? Computer network have led to a new age of all of these services. They have helped in
Question 1: The following is a dump of a TCP header in hexadecimal format: 00CD0018 00000EF1 00000D5D 502200D1 01BF0010 Please answer the following two parts of questions
Q. Illustrate Go Back - N protocol? Go Back - N - Sender window size - Receiver window size = 1 - Why the names go back- N? - When the frame is spoilt the sende
Q. Show the properties of Microwaves? Microwaves - Frequencies among 1 and 300 GHz - Unidirectional - Narrow focus requires sending as well as receiving antennas to
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