What is the total utilization of a circuit-switched network, accommodating five users with equal bandwidth share, and the following properties: Two users each using 91% of their bandwidth share Two users each using 44% of their bandwidth share One user using 13% of their bandwidth share

56.6%

Explanation:

Suppose a user is given bandwidth per user = 100

Total number of users = 5

Total bandwidth share for all 5 users = number of users * bandwidth per user = 5 * 100 = 500

So now max bandwidth is 500.

Bandwidth share of 2 persons with 91% per user = 2 X 91 = 182

Bandwidth share of 2 persons with 44% per user = 2 X 44 = 88

Bandwidth share of 1 persons with 13% per user = 1 X 13 = 13

Bandwidth under utilization by 5 users = 182 + 88 + 13 = 283

Total bandwidth utilization in percentage = (bandwidth under usage/maximum bandwidth of the network) * 100 = (283/500) * 100 = 56.6%