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Problem:
(a) Use a simple example to explain what is meant by a finite state machine.
(b) Describe the time limit problem in an interrupt-driven system.
(c) A certain machine control has three push-button switches:
forward, stop and reverse. If the machine is moving forward it must be stopped before it can run in reverse. Likewise if it is running in reverse, it must be stopped before moving forward.
(i) Draw the state transition diagram
(ii) Draw a state table
(iii) Write the 8051 code to implement such a controller
(d) A system is planned to have four interrupts with the following specifications.
Calculate whether or not the system will be interrupt-bound.
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Problem 1: List measurable entities on which the quality of service in a data communication network depends Problem 2: Show the features of a typical Network Management
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what is guided media or unguided media
Question: (a) Which type of attacker represents the most likely and most damaging risk to your network? (b) What is the basic reason that social engineering attacks succeed?
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