Q.The number of crosspoints needed for 10 lines in a crosspoint switch, which is full duplex in nature and there is no self-connection, is
Correct answer: 45
Explanation
In a full duplex crosspoint switch with no self connections the number of crosspoints required for 10 lines can be calculated using the formula. ( ) × − n n 1 = Number of crosspoints 2 Where n is the number of lines For n = 10 ( ) × − 10 10 1 = Number of crosspoints = 45 2 Thus, 45 crosspoints are needed for a full - duplex switch with 10 lines and no self - connections.
In a full duplex crosspoint switch with no self connections the number of crosspoints required for 10 lines can be calculated using the formula. ( ) × − n n 1 = Number of crosspoints 2 Where n is the number of lines For n = 10 ( ) × − 10 10 1 = Number of crosspoints = 45 2 Thus, 45 crosspoints are needed for a full - duplex switch with 10 lines and no self - connections.