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Introduction to Information Security

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Identified at least three IT infrastructure domains affected by "Internal Use Only" data classification standard.

THE SEVEN DOMAINS OF A TYPICAL IT INFRASTRUCTURE
1. User Domain defines the people who access an organization’s information system.
2. Work Station Domain is where most users connect to the IT infrastructure. It can be a desktop computer, or any device that connects to your network.
3. Local Area Network (LAN) DOMAIN is a collection of computers connected to one another or to a common connection medium. Network connection mediums can include wires, fiber optic cables, or radio waves.
4. LAN-TO-WAN DOMAIN is where the IT infrastructure links to a wide area network and the Internet.
5. Wide Area Network (WAN) DOMAIN connects remote locations. WAN services can include dedicated Internet access and managed services for customer’s routers and firewalls. Networks, routers, and equipment require continuous monitoring and management to keep WAN service available.
6. REMOTE ACCESS DOMAIN connect remote users to the organization’s IT infrastructure. The scope of this domain is limited to remote access via the Internet and IP communications.
7. System/Applications Domain an application domain is the CLR equivalent of an operation system’s process. An application domain is used to isolate applications from one another. This is the same way an operating system process works. The separation is required so that applications do not affect one another. This separation is achieved by making sure than any given unique virtual address space runs exactly one application and scopes the resources for the process or application domain using that address space.
The three most common IT infrastructure domains affected by "Internal Use Only" data classification are User domain, Workstation Domain and LAN-to-WAN domains.
The User Domain is probably the weakest

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