Which network configuration option is necessary for enabling remote access?

Enabling remote access is critical for allowing users to connect to a private network from a remote location securely. The best answer in this context is VPN Configuration.

A VPN, or Virtual Private Network, establishes a secure and encrypted connection between a user’s device and the network. This technology creates a private tunnel over the internet, which protects data from eavesdropping and interception, thus enabling safe remote access to the internal resources of a network. VPNs also allow users to access corporate servers, databases, and applications as if they were physically on-site, which is vital for maintaining productivity and data security in a remote work environment.

Other configuration options may serve purposes related to network access but do not provide the same level of security or functionality as a VPN. For instance, Remote Desktop Access typically allows a user to remotely control a computer but does not necessarily protect the data transmitted over the internet. DMZ configuration is primarily about isolating external-facing services, and while Port Forwarding facilitates access to specific devices within a network, it does not inherently offer the encryption and security that a VPN does.