AWS Local Zones

Correct Answer: Latency requirements, proximity to end-users, and the need for specific AWS services

When deciding to use AWS Local Zones for an application, the primary factors to consider are latency requirements, proximity to end-users, and the need for specific AWS services. Local Zones are designed to provide low-latency access to AWS services for applications that require real-time responses or have latency-sensitive workloads. They are strategically located close to large population centers, enabling applications to serve end-users with minimal latency. Additionally, Local Zones offer a subset of AWS services, so it's essential to ensure that the required services are available in the chosen Local Zone.

Correct Answer: AWS Local Zones are located closer to end-users in populated areas, providing single-digit millisecond latency.

The key difference between AWS Local Zones and AWS Regions is that Local Zones are located in close proximity to densely populated areas, offering single-digit millisecond latency to end-users. This allows applications to deliver ultra-low latency performance to local users. In contrast, AWS Regions are geographically separate areas that consist of multiple isolated Availability Zones, designed for high availability and fault tolerance. The other options are incorrect because: - Local Zones do not offer a broader range of services compared to Regions. They provide a subset of AWS services that are commonly used for low-latency applications. - Local Zones use the same APIs and require minimal changes to existing applications. They extend the existing AWS infrastructure. - Local Zones are designed for latency-sensitive applications that require proximity to end-users, while Regions cater to a wider variety of workloads, both local and global.

Correct Answer: Services that require low latency to end users or on-premises installations

AWS Local Zones are designed to provide low-latency access to select AWS services for applications that require single-digit millisecond latencies to end-users or on-premises installations. They extend AWS infrastructure closer to end-users and enable running latency-sensitive applications closer to end-users. Global services for managing and monitoring AWS resources, long-term archiving and backup services, and managed machine learning services are not the primary use cases for Local Zones, as they do not require ultra-low latency to end-users or on-premises locations.