Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 361 discussion

would be nice to have an explanation on why examtopic selects its answers.

DAX delivers up to a 10 times performance improvement—from milliseconds to microseconds. Using DynamoDB export to S3, you can export data from an Amazon DynamoDB table to an Amazon S3 bucket. This feature enables you to perform analytics and complex queries on your data using other AWS services such as Athena, AWS Glue.

test test

Sub-millisecond: DynamoDB (DAX), onetime query, Least operational overhead: Athena

Dynamo DB + DAX = low latency.

Scusate io ho pagato contributor perchè vedo ancora + votati invece di vedere solo la risposta corretta? Grazie.Fabio

Sub-millisecond latency == DAX

Amazon DynamoDB with DynamoDB Accelerator (DAX) is a fully managed, in-memory caching solution for DynamoDB. DAX can improve the performance of DynamoDB by up to 10x. This makes it a good choice for data that needs to be accessed with sub-millisecond latency. DynamoDB table export allows you to export data from DynamoDB to an S3 bucket. This can be useful for running one-time queries on historical data. Amazon Athena is a serverless, interactive query service that makes it easy to analyze data in Amazon S3. Athena can be used to run one-time queries on the data in the S3 bucket.

A NoSQL isn't even mentioned in the question and yet we are supposed to just imagine this fictional customer is using a NoSql DB

C Amazon DynamoDB with DynamoDB Accelerator (DAX): DynamoDB is a fully managed NoSQL database service provided by AWS. It is designed for low-latency access to frequently accessed data. DynamoDB Accelerator (DAX) is an in-memory cache for DynamoDB that can significantly reduce read latency, making it suitable for achieving sub-millisecond read times.

C is correct A don't meets a requirement (LEAST operational overhead) because use script B: Not regarding to require D: Kinesis for near-real-time (Not for read) -> C is correct

Agreed C will be best because of DynamoDB DAX

Option C will be the best fit. As they would like to retrieve the data with sub-millisecond, DynamoDB with DAX is the answer. DynamoDB supports some of the world's largest scale applications by providing consistent, single-digit millisecond response times at any scale. You can build applications with virtually unlimited throughput and storage.

C is the correct answer

Option C is the right one. The questions clearly states "sub-millisecond latency "

https://aws.amazon.com/dynamodb/dax/?nc1=h_ls

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