Which of the following is a security tool that can help prevent against data tampering by sending a secret stamp inside of an encrypted data frame?

If you wanted to reference a cell in a formula and you did not want that cell to change when copying and pasting you would use what kind of reference?

A) Absolute B) Mixed C) Relative D) Fixed

Matthew's manager Renee recently informed him that she was concerned about the possibility of a hacker tapping into their corporate database and altering customer records. What security goal is Renee concerned about achieving?

a. Confidentiality b. Alteration c. Integrity d. Availability