What would be a common access control technique used in firewalls and routersfor processing packets?

A.
Role-based Access control

B.
Rule-based Access control

C.
Time-based access control

D.
Context access control rules

Explanation:
Rule-based access control uses specific rules that indicate what can and cannothappen between a subject and an object. It is based on the simple concept of"if X then Y" programming rules, which can be used to providefiner-grained access control to resources. Before a subject can access an object ina certain circumstance, it must meet a set of predefined rules. Many routers andfirewalls use rules to determine which types of packets are allowed into a networkand which are rejected. Rule-based access control is a type of compulsory control,because the administrator sets the rules and the users cannot modify these controls.