8.Which of the following extends a private network across a public network and enables users to send and recei ive data across shared or public networks as if their comp mputing devices were directly connected to the private network?
(A) Broadband Global Area Network
(B) virtual private network (VPN)
(C) Extranet
(D) Intranet
(E) none of the above.

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統計： A(0), B(1), C(0), D(0), E(0) #2788321