A network device that associates a Media Access Control (MAC) address with a port is a:

• A.DSL modem
• B.Hub
• C.Router
• D.Switch

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VPNs are implemented to provide:

• A.additional security for selected computers.
• B.a secure connection through public networks.
• C.a secure connection within a private network.
• D.additional encryption by using IPSec.

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_________ is used to send packets from one network to another network.

• A.Routing
• B.Encapsulation
• C.BGP
• D.Transport

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Which technology can you use to extend an internal network across shared or public networks?

• A.VPN
• B.Microsoft .NET Framework
• C.Microsoft ASP-NET
• D.VLAN

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The default port used for telnet is:

• A.23
• B.25
• C.80
• D.8080

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