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Which of the following would enable an enterprise to provide
access to its intranet (i.e., extranet) across the Internet
to its business partners?
A. Virtual private network
B. Client-server
C. Dial-in access
D. Network service provider
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Answer: A
A virtual private network (VPN) allows external partners to
securely participate in the extranet using public networks
as a transport or shared private networks. Because of its
low cost, using public networks (Internet) as a transport is
the principal method. VPNs rely on tunneling/encapsulation
techniques, which allow the Internet protocol (IP) to carry
a variety of different protocols (e.g., SNA, IPX, NETBEUI).
A client-server (choice B) does not address extending the
network to business partners (i.e., client-servers refers to
a group of computers within an organization connected by a
communications network where the client is the request
machine and the server is the supplying machine). Choice C
refers to remote users accessing a secured environment. It
is the means, not the method of providing access to a
network. A network service provider (choice D) may provide
services to a shared private network in providing Internet
services, but not extended to an organization's intranet.
| Is This Answer Correct ? | 4 Yes | 0 No |
Which of the following is the BEST way to handle obsolete magnetic tapes before disposing of them? A. Overwriting the tapes B. Initializing the tape labels C. Degaussing the tapes D. Erasing the tapes
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