The 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
A. 100
B. 45
C. 50
D. 90
Answer: Option B
Solution(By Examveda Team)
As all lines are full-duplex and there are no self connections, only the cross points above the diagonals are needed. Hence formula for the number of cross points required is n(n-1)/2.This Question Belongs to Networking >> Networking Miscellaneous
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n(n-1)/2
n = 10
then
10(10-1)/2
=10*9/2
=90/2
=45
Thanksss