What is the optimal way to compute A1 A2 A3 A4 A5 A6, where the dimensions of the matrix are: A1: 10 x 20, A2: 20 x 1, A3: 1 x 40, A4: 40 x 5, A5: 5 x 30, A6: 30 x 15.

How much of the TCSEC orange book do you agree with, and how much do you disagree with?

Question 9  Full explain this question and text typing work only thanks

How do you picture an email's contents? Which of these methods for forwarding emails is the most time-effective? Make a rundown of anything of value you've learned. Why are they so common, and what makes them special? To what extent may models be simplified (or how many levels of detail are there)?

What are the many different sorts of biometric devices used for in daily life, and why are they becoming increasingly important for authentication these days?

Please write a 4 to 5 paragraph presuasive speech about cryptocurrency and some advantajes that you think are the most important about it. Please wirte some examples too!

What are some of the reasons why it is more probable that the intention of an email may be misunderstood? There are at least two helpful ways that you may conduct yourself in a professional manner in the email conversation that you have. What about the following understanding of the phrase?

4) Question 2 asked you to compute the number of possible passwords with various numbers of characters.  However, it seems more likely that most people will choose actual words for their password.  According to the website wordfinder.yourdictionary.com, the English language has approximately 23,000 six-letter words.  a) Assume that a password must be at least 8 characters long and include at least 1 digit and at least 1 special character (again, assume there are 30 of these that are allowed). If people form their password by taking an English word of exactly 6 letters (assume that this password is not case-sensitive) and then adding (in either order) a digit and a special character (e.g flames#1), how many passwords would be possible?  (Hint: Find the number of passwords with 6 letters followed by a digit and a special character, then exchange the order of the last two characters.)  b) How does your answer change if we assume passwords are case-sensitive and the password must…

There are numerous applications for authentication; are you conversant with the most prevalent ones? What are the advantages and disadvantages of the various authentication methods?