$[1/23,00$:$35]$ Bhanu: Faculty at SCSU can use Y drive $($CourseFile$)$ for students to submit their programming assignments. Students can drop their assignments in either AssignmentDropBox or the student's workfolder in Y drive. Security measure must be put in place to prevent some students from cheating and copying other student's work.

$[1/23,00$:$35]$ Bhanu: d$.$ IA classes at National Defense University involve projects needing access to privileged information and protected systems. Currently, all students including non$-$IA students share four computer labs $($coded A$,$B$,$C$,$D$)$ on the campus. Concerns about lab availability, confidentiality, and integrity issues have been voiced.

$[1/23,00$:$36]$ Bhanu: $3.$ Consider a BLP system with the following clearances $($classifications$)$ and category sets:

: $4$ leongs isen: Couse, The Pentagon, The Hall of Congress, Supreme Courty

$/$The Pentagon, The Hall of Congress, Supreme Court?, The Hall of Congress, Supreme Court$/,($Supreme Court$/$

$($do not consider other unlisted category sets$)$

a$.$ List all the security levels in the system. $8$ points

b$.$ Assuming Alice is assigned the security level $($S$,\{$The White House, The Pentagon, The Hall of Congress, Supreme Court,$),$ list all the security levels $($of objects$)$ that she can read and all the security levels $($of objects$)$ that she can write by BLP policy.