Joe sends a scathing e-mail to his boss regarding increased work hours. joe tries to deny sending the e-mail, but is unable to due to the use of digital signatures. this is an example of
a. confidentiality
b. integrity
c. availability
d. authentication
e. nonrepudiation

Which statement best explains how plant cells use photosynthesis to maintain homeostasis? they use glucose and water to make energy. they break down glucose into fat. they combine oxygen and water to make glucose. they make glucose from carbon dioxide and water.

One of your customers wants you to build a personal server that he can use in his home. one of his concerns is making sure he has at least one backup of their data stored on the server in the event that a disk fails. you have decided to back up his data using raid. since this server is for personal use only, the customer wants to keep costs down. therefore, he would like to keep the number of drives to a minimum. which of the following raid systems would best meet the customer's specifications? a. raid 0 b. raid 1 c. raid 5 d. raid 10

Which best describes the role or restriction enzymes in the analysis of edna a. to break dna into fragments that vary in size so they can be sorted and analyzed b. to amplify small amounts of dna and generate large amounts of dna for analysis c. to purify samples of dna obtained from the environment so they can be analyzed d. to sort different sizes of dna fragments into a banding pattern that can be analyzed