Which services are inherently highly available in AWS?

Which services are inherently highly available in AWS?

• A. AWS Lambda, AWS Batch, AWS Snowball
• B. Amazon CloudFront, DynamoDB, and Simple Storage Service (S3)
• C. AWS CloudFormation, Amazon EC2, RDS
• D. AWS Glue, Amazon Redshift, AWS AppSync

Answer: (B)

The option featuring Amazon CloudFront, DynamoDB, and Simple Storage Service (S3) represents services that are designed with high availability in mind, making them robust and reliable for production workloads. Amazon CloudFront is a Content Delivery Network (CDN) that is inherently highly available due to its global network of edge locations. It can route traffic efficiently and automatically handles failover, ensuring content is delivered swiftly from the nearest location to end-users. DynamoDB, a fully managed NoSQL database service, is built to provide high availability and durability. It is designed to automatically replicate data across multiple Availability Zones within a region, thus minimizing the impact of any single point of failure. Simple Storage Service (S3) offers high durability and availability by storing data redundantly across multiple facilities. It is engineered to provide 99.999999999% (11 nines) durability and is designed to sustain the loss of data centers without affecting data availability. In contrast, the other options include services that may not inherently guarantee high availability. For instance, AWS Lambda is designed to be highly available, but its availability is dependent on the configurations set by the user. Similarly, while Amazon EC2 instances can be configured for high availability, they do not inherently provide

The option featuring Amazon CloudFront, DynamoDB, and Simple Storage Service (S3) represents services that are designed with high availability in mind, making them robust and reliable for production workloads.

Amazon CloudFront is a Content Delivery Network (CDN) that is inherently highly available due to its global network of edge locations. It can route traffic efficiently and automatically handles failover, ensuring content is delivered swiftly from the nearest location to end-users.

DynamoDB, a fully managed NoSQL database service, is built to provide high availability and durability. It is designed to automatically replicate data across multiple Availability Zones within a region, thus minimizing the impact of any single point of failure.

Simple Storage Service (S3) offers high durability and availability by storing data redundantly across multiple facilities. It is engineered to provide 99.999999999% (11 nines) durability and is designed to sustain the loss of data centers without affecting data availability.

In contrast, the other options include services that may not inherently guarantee high availability. For instance, AWS Lambda is designed to be highly available, but its availability is dependent on the configurations set by the user. Similarly, while Amazon EC2 instances can be configured for high availability, they do not inherently provide