There are parts of "active" or Active called. Such as switches and modems, etc.
Date: 5/10/2015       (visite count : 2504)

(Domain Name System), which briefly called DNS is a hierarchical database of symbolic names to their IP is distributed over the entire network. The system established in 1984 and developed over the following years.
Date: 5/10/2015       (visite count : 2597)

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