Direct Connect is the option most closely associated with having a leased line to a public cloud provider, as defined in the CompTIA Network+ N10-009 objectives under cloud connectivity and WAN technologies. Direct Connect (or equivalent services such as Azure ExpressRoute or Google Cloud Interconnect) provides a dedicated, private physical connection between an organization’s on-premises network and a public cloud provider’s infrastructure. This connection bypasses the public internet, offering consistent bandwidth, lower latency, improved performance, and enhanced security.

A VPN uses encrypted tunnels over the public internet, which does not qualify as a leased line and is subject to internet congestion and variable performance. An internet gateway simply allows cloud resources to communicate with the public internet and does not imply a private or dedicated connection. A private cloud refers to a deployment model where cloud resources are dedicated to a single organization; it does not describe the connectivity method or the use of a leased circuit.

According to Network+ objectives, leased-line connectivity to cloud providers is commonly used by enterprises that require high availability, predictable throughput, regulatory compliance, or secure hybrid cloud architectures. Direct Connect is a foundational component of hybrid networking strategies, linking on-premises environments directly to public cloud services using provider-managed circuits.