Data Communication Q.45

0. Number of cross point needed for 10 lines in a cross point switch which is full duplex in nature and there are no self-connection is

Answer
Comment
Array

Option : B
Explanation : As all lines are full-duplex and there are no self-connections, only the cross points above the diagonal are needed. Hence formula for the number of cross points needed is n (n -1) / 2

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