What technology can secure data over an insecure medium and provide WAN redundancy in the event of a primary connection failure?

What technology can secure data over an insecure medium and provide WAN redundancy in the event of a primary connection failure?

Question:

What technology can secure data over an insecure medium and provide WAN redundancy in the event of a primary connection failure?

Options:

virtual private network

shadow PVC

dial-up ISDN

GRE Tunnel

Correct Answer

The Correct Answer for this Question is

virtual private network

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