Which of the following actions would not be allowed in the Bell-LaPadula model?
a. General with Top Secret clearance writing at the Top Secret level
b. Corporal with Confidential clearance writing at the Confidential level
c. General with Top Secret clearance reading at the Confidential level
d. General with Top Secret clearance writing at the Confidential level
Answer: D
The first three actions would be allowed since you can write to your level and read at your level (or below). The situation that would not be allowed is the General with Top Secret clearance writing at the Confidential level.