Tim would like to send a confidential, encrypted message to Kellie using symmetric cryptography. What key should Tim use to create the message

Which of the following “invisible” marks represents an inserted tab?

Assume that there is a 4% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Hashtags serve to identify the topic of a given tweet true false