Exam AWS Certified Data Analytics - Specialty topic 1 question 144 discussion

C seems correct cost-effective rules out emr [A&B] scalable reporting suggests redshift spectrum instead of athena immediate access to updated dashboards suggests kibana instead of quicksight d may appear less expensive than c, but does not quite meet the criteria

S3 Event Notifications to react to S3 updates

Vote D. AWS Step Function vs Lambda+S3 Events do not have much price difference. Although Redshift Spectrum charge very less money, to use Redshift Spectrum the customer needs to have an existed Redshift cluster (AWS did have serverless around $260; around $180 per month for dense compute), which definitely beat Athena for "one-time" query. Quicksight cost $18 per user per month whereas Opensearch charge $43 per month (serverless one even more expensive; any combination indexing+searching-n-query would give $172.8 per month). https://aws.amazon.com/quicksight/pricing/ https://aws.amazon.com/opensearch-service/pricing/ https://aws.amazon.com/redshift/pricing/

It is D Cost effective With Lambda + S3 event notification, Latest data will be picked up Athena can help with ad hoc queries perfect for that QuickSight with Direct Query can handle real time refresh https://docs.aws.amazon.com/quicksight/latest/user/refreshing-data.html

I think its C due to the fact that Kibana provides real time dash board capabilities and glue is cheaper than emr.

D: I passed the test

The question says "cost effective", so answer is D.

I would think it was C

D is a better option. Lambda and S3 notifications make so much sense if the data is already uploaded to S3 everyday and you want to trigger the process upon the upload event.

I would go for D, only in doubt regarding Athena. But I think that if we compare creating a OpenSearch cluster and a Redshift cluster vs having Athena and Quicksight it is more cost efectively.

D is more cost-effective, however it can't meeting a must request "must provide the ability to perform one-time queries and analytical reporting in a scalable manner." as athena is not scalable

D for sure. Not C because you need a redshift to use redshift spectrum and Opensearch+Kibana is used in near-realtime scenario but here the data is uploaded "daily"

I vote for C because they want to see the up-to-date listings as soon as the data is uploaded to Amazon S3. OpenSearch Dashboards allows them to refresh and display the most up-to-date dashboard automatically right away. C may not be as cost-effective as D, but D does not meet the requirement of delivering the listings as soon as the data is uploaded.

D because its most cost effective

Answer:D EMR is not cost-effective, AB is out; OpenSearch is also expensive compared to QuickSight. C is out. D is perfectly cost-effective.

C seems correct cost-effective rules out emr [A&B]

Most cost effective solution