On the PPE board, what number(s) on the key pad is(are) pressed for an output port value of 04h and an input port value of 2Fh

Explain briefly why you cannot expect to find a previous version of every file with which you work.

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).

Terri needs to insert a cover page into her document. where should she go to access the commands to do so? o insert tab, objects group o insert tab, illustrations group o insert tab, pages group o insert tab, media group submit