It is almost always the case that no system resides in a(n) ________

Which of the following statements are TRUE regarding symmetric algorithms?

A. They are easy to break. B. They are slower than asymmetric algorithms. C. They include both stream-based and block ciphers. D. They provide confidentiality, authentication, and non-repudiation.

Which of the following is not an arithmetic operator?

a. + b. - c. . d. %