a. What is the definition of a VPN? b. Why do companies transmit over the Internet? c. Why do they transmit over untrusted wireless networks? d. Distinguish between the three types of VPNs. e. What does a VPN gateway do for a remote access VPN? f. What does a VPN gateway do for a site-to-site VPN? g. Which types of VPNs use VPN gateways?
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