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Which of the following is an abstraction of the signal impedance?(a) level(b) strength(c) size(d) natureThis question was posed to me during a job interview.This interesting question is from Introduction to VHDL in portion Specification of Embedded Systems

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The correct ANSWER is (b) strength

The best I can EXPLAIN: The SYSTEMS contain electrical SIGNALS of different strengths and it needs to compute the strength and the logic level resulting from a connection of two or more sources of electrical signals. The strength is the abstraction of the signal impedance.



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