An Excel template is saved with the ________ extension

Which of the following statements best describes the Biba security model?

A. No read up and write up B. No write up and no write down C. No read up and no write down D. No read down and no write up

If an organization takes a full backup every Sunday morning and a daily differential backup each morning, what is the fewest number of backups that must be restored following a disaster on Friday?

a. 2 b. 5 c. 1 d. 6