For communications outside the range of a single building or a cluster of buildings,a wide area network (WAN)is employed.
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Q3: Use of digital transmission for applications such
Q4: Presence information is associated with every presentity
Q5: Almost all wide area networks use circuit
Q6: In a circuit switching network,the path that
Q7: Which of the following is NOT a
Q9: Having multiple paths from one station to
Q10: The major application that uses circuit switching
Q11: Basic packet switching technology has recently been
Q12: Switching nodes are devices that enable data
Q13: It is desirable to have only one
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