Microsoft Azure Architect Technologies (AZ-300) Practice Exam 2025 - Free AZ-300 Exam Questions and Study Guide

ExpressRoute is the right choice when looking for a connection that facilitates private and secure communication between Azure and an on-premises environment. It creates a dedicated, private connection that does not traverse the public internet, thus providing enhanced security and reliability.

With ExpressRoute, organizations can create high-throughput and low-latency connections that are ideal for scenarios requiring significant data transfer, such as backup and restore, disaster recovery, and big data applications. Additionally, it supports multiple routing domains, enabling clients to connect to multiple Azure regions without compromising security or scalability.

In contrast, options like Traffic Manager focus on load balancing and improving the availability of applications across different regions but do not create a private connection. VNet Peering connects virtual networks but does not connect to on-premises networks directly. Virtual Network Gateway, while essential for establishing site-to-site VPN connections, does not offer the dedicated bandwidth and security features provided by ExpressRoute.