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Which technology is primarily used to securely extend a private network across the internet, allowing for encrypted remote user access?
VPN
WLAN
PING
IMAP
A Virtual Private Network (VPN) allows remote users to connect over the internet to a private network using encrypted tunnels, providing a secure means of access as if they were directly connected to the network's internal infrastructure. This security is particularly important for remote work access to corporate environments. The incorrect options listed are either different types of networks that do not specifically encapsulate traffic over the public internet (e.g., WLAN), or are a method of unencrypted communication between network devices (PING).
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