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CISSP All Domains Practice test 1
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Question : 26
Total: 50
How many keys would we have if we had 100 users using symmetric encryption?
2000
200
100
4950
Validate
Solution:
Symmetric: n(n-1)/2 users, with 100 users we would need 100(100-1)/2 or (100x99)/2 = 4950 keys.
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