Microsoft Azure Architect Design (AZ-304) Practice Test

What Azure service can be used to establish secure connectivity between on-premises resources and Azure services?

1. Azure Virtual Network

2. Azure ExpressRoute

3. Azure Active Directory

4. Azure Site Recovery

The correct answer is: Azure ExpressRoute

Using Azure ExpressRoute is an excellent choice for establishing secure connectivity between on-premises resources and Azure services. This service creates private connections that enable you to bypass the public internet, which can reduce latency, increase security, and provide more consistent network performance. ExpressRoute allows for direct connections to Azure from your data center, office, or colocation facility, enabling a more reliable and secure communication channel. Unlike traditional internet connections, ExpressRoute maintains a dedicated circuit, which helps to link your organization's on-premises network directly to Azure virtual networks, providing higher bandwidth options and more predictability in connectivity. This is particularly important for businesses that require fast, uninterrupted access to their Azure resources for mission-critical applications. Other choices, while related to Azure connectivity, serve different purposes. Azure Virtual Network allows for the creation of logically isolated networks in Azure but may not provide the same level of security and bandwidth guarantees as ExpressRoute. Azure Active Directory is primarily focused on identity management, enabling authentication and authorization for users accessing Azure services rather than establishing connectivity. Azure Site Recovery is designed for business continuity and disaster recovery, allowing for replicating and recovering virtual machines but not specifically for secure network connectivity.