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cisco certification near me.User A Read Read, Write Read, ExecuteUser B read, execute write read readUser c read, write read read readFigure 4-11 Performing Access Control with ACM Restrictedinterface: An access control mechanism that restricts the operations that a subject can perform on an object by assigning only limited functionality to the interface that the subject uses to access the object. Menus, shells, physically constrained interfaces, etc. are typical of restricted interfaces. Let's say that if the user is a system administrator, the menu may provide more options, and if the user is a guest, the menu will provide fewer options. Content-dependentaccesscontrol: This access control mechanism makes authorization decisions based on the information (content) contained in the resource. This access control mechanism is commonly used for database access control, and database views are a typical example.Hint: Database views can also be thought of as restricted interfaces, as they provide different information depending on the identity of the user.Context-dependentaccesscontrol: This access control mechanism makes access decisions based on contextual information and other information (e.g., the identity of the subject). For systems that use this access control mechanism, authorization decisions are made by examining events that occurred prior to the access request. Stateful firewalls (for example, a Cisco ASA or a firewall with the202 Chapter 4 Introduction to Access ControlCisco IOS routers with region-based firewall functionality) are typical of systems that employ such control mechanisms and will release or block packets based on the session information to which the packet belongs.