In entering data, two clerks separately entered the exact same invoice information into the system. What needs to happen to the data to fix this error?

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).

Which one of the following is considered a peripheral? a software b mouse c usb connector d motherboard

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