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, both, or neither) 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 classsified (CONFIDENTIAL, {C}).
d. Sammi, cleared for (TOP SECRET, {A, C}), wants to access a document classsified (CONFIDENTIAL, {A}).
e. Robin, who has no clearances (and so works at the UNCLASSIFIED level), wants to access a document classified (CONFIDENTIAL, {B}).

1 – Paul will be able to READ the document classified (SECRET, {B,C}) (No read up, no write down!)

2 – Anna will not be able to access the document since she is not in the category-set

3 – Jesse will be able to READ the document classified (CONFIDENTIAL, {C}) (No read up, no write down!)

4 – Sammi will be able to READ the document classified (confidential, {A}) (No read up, no write down!)

5 – Robin will be able to WRITE do this document, but not read it (No read up, no write down!)

Explanation:

1 – Paul will be able to READ the document classified (SECRET, {B,C}) (No read up, no write down!)

2 – Anna will not be able to access the document since she is not in the category-set

3 – Jesse will be able to READ the document classified (CONFIDENTIAL, {C}) (No read up, no write down!)

4 – Sammi will be able to READ the document classified (confidential, {A}) (No read up, no write down!)

5 – Robin will be able to WRITE do this document, but not read it (No read up, no write down!)

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