____________________ variables are variables that accept one of two values, either true or false.

Big Decimal gives you control over how values are rounded. By default:

a. all calculations are approximate and no rounding occurs. b. all calculations are approximate and rounding occurs. c. all calculations are exact and no rounding occurs. d. all calculations are exact and rounding occurs.ANS:

The use of certificate authorities to associate public keys with certain users is known by what term?

a. public-key organization b. certified infrastructure c. public-key infrastructure d. symmetric identification