What is the maximum number of columns in a spreadsheet that you can sort in one instance in software like openoffice calc? a.) 2 b.) 3 c.) 4 d.) 5

3. bob is arguing that if you use output feedback (ofb) mode twice in a row to encrypt a long message, m, using the same key each time, it will be more secure. explain why bob is wrong, no matter what encryption algorithm he is using for block encryption (15 points).

Atool that matches persoal skills qualities interests and talets to a career is called a

Dameas communication challenge is due to which factor