Reduce Latency for DynamoDB Requests
Question
Your team is developing a solution that will make use of DynamoDB tables.
Due to the nature of the application, the data is needed across a couple of regions across the world.
Which of the following would help reduce the latency of requests to DynamoDB from different regions?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Answer - B.
The AWS Documentation mentions the following.
Amazon DynamoDB global tables provide a fully managed solution for deploying a multi-region, multi-master database without building and maintaining your own replication solution.
When you create a global table, you specify the AWS regions where you want the table to be available.
DynamoDB performs all of the necessary tasks to create identical tables in these regions and propagate ongoing data changes to all of them.
Option A is incorrect because there is no such option of Multi-AZ.
And this is enabled by default as data is replicated across at least 2 AZs.
Option C is incorrect because there is no such feature.
Option D is incorrect because increasing read and write capacities does not help to reduce latency in different regions.
For more information on Global tables, please refer to the below URL-
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/GlobalTables.htmlTo reduce the latency of requests to DynamoDB from different regions, the best option would be to enable global tables for DynamoDB.
Global tables in DynamoDB enables replication of table data across multiple AWS regions, which means that data can be read and written to the table in any of the regions where the table is replicated. This helps to reduce the latency of requests and improves the overall performance of the application.
Enabling Multi-AZ for the DynamoDB table would only provide high availability within a single region and would not help to reduce the latency for requests from different regions.
Enabling indexes for the table could improve the performance of specific queries but would not necessarily improve the overall latency of requests from different regions.
Increasing the read and write throughput for the table would only improve the capacity of the table to handle requests, but would not necessarily reduce the latency of requests from different regions.
Therefore, option B, enabling global tables for DynamoDB, is the most appropriate choice to reduce latency for requests to DynamoDB from different regions.
