At its most fundamental level the Internet mail architecture ...

[HCHenry]

At its most fundamental level the Internet mail architecture consists of a user world in the form of _________.
 
  A. MHS B. MSA
   C. MUA D. MDA

Question 2

The basic tool that permits widespread use of S/MIME is ________.
 
  A. the domain key B. the public-key certificate
   C. the MIME security payload D. radix-64

[deja]

Answer to Question 1

C

Answer to Question 2

B

[HCHenry]

Excellent

[rleezy04]

Thanks for the timely response, appreciate it