Q 1-Classify each of the following as an example of a mandatory, discretionary, or originator controlled policy, or a combination thereof. Justify your answers. a. The file access control mechanisms of the UNIX operating system b. A system in which no memorandum can be distributed without the author's consent c. A military facility in which only gencrals can enter a particular room d. A university registrar's office, in which a faculty member can see the grades of a particular student provided that the student has given written permission for the faculty member to see them. Q2- Given the security levels TOP SECRET, SECRET, CONFIDENTIAL, and UNCLASSIFIED (ordered from highest to lowest), and the categories A, B, and C, specify what type of access (read, write, or both) is allowed in each of the following situations. Assume that discretionary access controls allow anyone access unless otherwise specified. a. Paul, cleared for (TOP SECRET, A, C, wants to access a document classified (SECRET, B, C ) b. Anna, cleared for (CONFIDENTIAL, C), wants to access a document classified CONFIDENTIAL,B). c. Jesse, cleared for (SECRET, C), wants to access a document classified (CONFIDENTIAL, C ) d. Sammi, cleared for (TOP SECRET, A, C)), wants to access a document classified (CONFIDENTIAL, {A }). c. Robin, who has no clearances (and so works at the UNCLASSIFIED level), wants to access a document classificd (CONFIDENTIAL, B )