Rsa is a public-key cryptosystem developed by mit professors ronald l. rivest, adi shamir, and leonard m. adleman in 1977 in an effort to ensure internet security. rsa uses modular arithmetic and elementary number theory to do computations using two very large prime numbers. identify the statement which is true for rc6 algorithm:
a. is a variable key-size stream cipher with byte-oriented operations and is based on the use of a random permutation
b. includes integer multiplication and the use of four 4-bit working registers
c. is a parameterized algorithm with a variable block size, key size, and a variable number of rounds
d. is a 64 bit block cipher that uses a key length that can vary between 32 and 448 bits

In which career field, would the computing technology industry association's comptia a+ certification be useful?

For question 1, i'm a bit stuck between serif fonts or large enough type to read. serif fonts are good fonts to use because their easy to read. but you also need your type be large enough to read. if i had to say what you need to consider most important, i would say d is the answer.  for question 3, i believe the answer is d. it seems most appropriate to do that. on every page or every other page would be too much, and only on the contact page just seems inappropriate.  for question 4, it's probably a. by "color scheme" it doesn't mean just one color, but a set of colors. colors that are complimentary to each other. having too many is too distracting so it's best to limit it as much as possible, but not to the point where your website looks dull.hope this !

The printer costed $185,000 if i recall correctly

Ais he answer. the other's are stupid.