Review questions 8.1 what is the difference between rfc 5321 and rfc 5322? 8.2 what are the smtp and mime standards? 8.3 what is the difference between a mime content type and a mime transfer encoding? 8.4 briefly explain base64 encoding. 8.5 why is base64 conversion useful for an e-mail application? 8.6 what is s/mime? 8.7 what are the four principal services provided by s/mime? 8.8 what is the utility of a detached signature? 8.9 what is dkim?

Why should characters such as / \ " ' * ; - ? [ ] ( ) ~ ! $ { } < > # @ & | space, tab, and newline be avoided in file names?

If an improvement creates no significant change in a product’s performance, then it is a(n) ? a0 design improvement. (there are no answer choices)

Suppose s, t, and w are strings that have already been created inside main. write a statement or statements, to be added to main, that will determine if the lengths of the three strings are in order by length, smallest to largest. that is, your code should determine if s is strictly shorter than t, and if t is strictly shorter than w. if these conditions hold your code should print (the boolean value) true. if not, your code should print false. (strictly means: no ties) example: if s, t, and w are "cat", "hats", and "skies" your code should print true - their lengths are 3-4-5; but if s, t, and w are "cats" "shirt", and "trust", then print false - their lengths are 4-5-5 enter your code in the box below