Question

According to which virtue do you need to secure information by limiting computer access to authorized personnel only?

A. 256 or 28 different combinations
B. 257 or 28 different combinations
C. 255 or 28 different combinations
D. 255 or 29 different combinations

Answer 1

The answer is A : 256 or 2 to the 8th power different combinations. In EBCDIC (Extended Binary Coded Decimal Interchange Code). It is an 8-bit code allowing 256 possible combinations of textual symbols. (2 to the 8th power = 256)