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English to Chinese translations [PRO] Tech/Engineering - IT (Information Technology) / virtualisation
English term or phrase:currency
In its most basic form, NAC (network access control) enforces organizational policies on systems when they attempt to connect to the network or when they attempt to enter a particular part of the network (for example, when they connect from an edge switch into the core). A NAC system makes determinations about the device and access control decisions based on those determinations. The status of the device can be as simple as an authentication by a known user or as complex as an external or internal scan of the client system. The external scan may look for known vulnerabilities, open ports, and the like, while the internal scan may check operating system parameters and patch levels, installed or running processes, currency of applications such as anti-virus signatures, and so on.