Point-to-point Networks - Number of links

Q.  If 'n' number of users are present in a network with point-to-point links, then how many links will be required in the network?
- Published on 18 Nov 15

a. n (n – 1)
b. n (n – 1) / 2
c. n (n – 1) / 4
d. n (n – 1) / 8

ANSWER: n (n – 1) / 2

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