Microsoft Azure Architect Design (AZ-304) Practice Test

For a company using Azure ExpressRoute, what is an important aspect of migrating application solutions?

1. Data encryption in transit

2. Latency reduction

3. Establishing a hybrid cloud architecture

4. Cost optimization strategies

The correct answer is: Establishing a hybrid cloud architecture

Migrating application solutions using Azure ExpressRoute involves establishing a hybrid cloud architecture, which is a critical aspect of leveraging the benefits of Azure in conjunction with on-premises resources. ExpressRoute provides a private connection between on-premises infrastructure and Azure data centers, which facilitates a seamless integration between the two environments. This hybrid cloud architecture enables companies to maintain control over their resources while also utilizing the scalable and flexible nature of Azure. It allows for applications to span across both on-premises and cloud environments, enhancing reliability and performance. Establishing such an architecture is crucial for ensuring that applications can operate effectively during and after the migration process. In contrast, while aspects like data encryption in transit, latency reduction, and cost optimization strategies are important considerations in a cloud migration scenario, they serve specific roles rather than the foundational architecture aspect that a hybrid setup provides. Data encryption is essential for security, latency reduction is important for performance, and cost optimization strategies focus on managing expenses, but none of these elements directly relate to the framework within which applications are integrated during migration as the hybrid architecture does.