ISC Exam Questions

How much more secure is 56 bit encryption opposed to 40 bit encryption?

How much more secure is 56 bit encryption opposed to 40 bit encryption?

A.
16 times

B.
256 times

C.
32768 times

D.
65,536 times

Explanation:
2 to the (56-40)th power – 2 to the 16th power = 65536
Note:
2 to the power of 40 = 1099511627776
2 to the power of 56 = 72057594037927936
72057594037927936 / 1099511627776 = 65,536