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رد: +++ تنبيه +++ سرية وحمــــــــــــــــاية البيانــــــــــــــــــــــــــــــــات ,,,,
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في المحاضرة السادسة
žClosed Vs Open Systems
žClosed Systems
Some DBMS required authorization for authorized DBMS users to access specific objects.
žOpen Systems
Allow users to have complete access to all objects within the database.
في المحاضرة السابعة
žMechanism vs. Policy
žMechanisms determine how to do something
provided by the operating system
E.g., ability to set the priority of a user process
žPolicies determine what will be done
E.g., determining which processes get highest priority
وفي محاضرة الجدار الناري المميزات والعيوب بين
Packet-filtering routers
Application-level gateways
هذي الى لحد اللحين لقيتها
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