Question: Select the true statement ( s ) regarding a virtual circuit. a . both analog and digital networks take advantage of the virtual circuit concept

Select the true statement(s) regarding a virtual circuit.
a. both analog and digital networks take advantage of the virtual circuit concept
b. virtual circuits require the assignment of dedicated physical links during network connection
c. regarding the efficient use of physical links, virtual circuits are more efficient than analog circuits
d. both a and b are true statements

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