Networked host services and common service roles

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Explain the purpose of common host and server roles, including DHCP server, DNS server, file server, print server, mail server, web server, proxy server, authentication server, and virtual private network endpoints where named in scope.
Differentiate infrastructure services that automatically provide configuration or name resolution from application services that deliver files, print jobs, web content, or email.

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Interpret client symptoms to infer which back-end service role may be unavailable, misconfigured, or unreachable.

Apply service-role knowledge to basic deployment and support scenarios in home, SOHO, and small business environments.

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