Can you help me explain to my little brother he isn't cool? Sorry!

Select all that apply. what types of documents can be created using word-processing software? business newsletters letters of application presentation slideshows customer databases

Idon understand these and need some ! ?

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).