Module 3: Global Infrastructure and Reliability (Part 1) Flashcards
What is the importance of selecting the right AWS Region?
Selecting the right AWS Region is crucial for optimizing performance, compliance, and cost. It ensures that your services, data, and applications are located in the desired geographical areas and are close to your customers.
What business factors should be considered when selecting an AWS Region?
Four key business factors to consider are compliance with data governance and legal requirements, proximity to customers for faster content delivery, availability of required services within the Region, and pricing differences between Regions.
How does compliance impact the choice of AWS Region?
Compliance with data governance and legal requirements may dictate the location where your data must reside. You need to choose a Region that aligns with your company’s specific compliance needs.
How does proximity to customers influence the choice of AWS Region?
Selecting a Region close to your customers reduces latency and improves the user experience by enabling faster content delivery.
How does available services within a Region affect the selection process?
If specific AWS services or features are required for your applications, you need to choose a Region where those services are available. Not all services are immediately rolled out globally, and their availability may vary across different Regions.
How does pricing impact the decision of selecting an AWS Region?
Pricing varies between AWS Regions due to factors such as tax structures and local market conditions. Evaluating the cost implications of running applications in different Regions is essential for optimizing expenses.
What is an Availability Zone in AWS?
An Availability Zone is a data center or a group of data centers within an AWS Region. They are located in close proximity to each other to ensure low latency but are geographically separated to reduce the impact of disasters on multiple zones.
Why is it recommended to run applications across multiple Availability Zones?
Running applications across multiple Availability Zones improves the resilience and high availability of the application. It ensures that if one Availability Zone fails, the application can continue running in another Zone.
How does running Amazon EC2 instances in multiple Availability Zones enhance application availability?
By running Amazon EC2 instances in multiple Availability Zones, the application can continue running even if one Zone experiences a failure. This provides better fault tolerance and reduces the risk of downtime.
What is the benefit of having low latency between Availability Zones?
Low latency between Availability Zones ensures fast and efficient communication between different parts of an application distributed across multiple Zones. It helps in maintaining high performance and responsiveness.
How does the geographic separation of Availability Zones enhance disaster resilience?
The geographic separation of Availability Zones reduces the likelihood that a single disaster event would impact multiple Zones simultaneously. This enhances the overall resilience and availability of applications deployed across multiple Zones.
