Final answer:
The technology that allows a user at home to connect to a corporate network is a Virtual Private Network (VPN). It provides encrypted remote access, ensuring data security and providing access to network resources as if the user were on-site. Other options like NAT, DMZ, and PLC serve different networking purposes.
Step-by-step explanation:
The technology that allows a user at home to connect to the corporate network is known as a Virtual Private Network (VPN). A VPN creates a secure tunnel over the internet, encrypting data and providing remote workers with access to resources on the corporate network as if they were physically connected to it. This secure connection ensures that sensitive information is protected from unauthorized access.
Technologies like NAT (Network Address Translation), DMZ (Demilitarized Zone), and PLC (Power Line Communication) serve different purposes. NAT is used for mapping private IP addresses to a public address before data leaves a local network, DMZ is a buffer network that adds an extra layer of security to an organization's LAN, and PLC uses power lines for data transmission within a building or area. Of these options, only a VPN is explicitly designed for secure remote network access.