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ISACA Certified in Risk and Information Systems Control · Isaca
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D is right. Communication channels= n*(n-1)/2 . 25*(25-1)/2= 600/2 = 300
The formulas described in the descriptions are not consistent: First it says Total Number of Communication Channels = n (n-1)/2 And then it says the below, notice how the parenthesis is placed that makes the difference in algebra. First formula is right for this question. Number of communication channel = (n (n-1)) / 2