A DynamoDB table is set to have a read capacity unit (RCU) of 1. Which of the following situations is the RCU suitable for?

Answer options:

A.For two strongly consistent read of 4KB data.
B.For two eventually consistent read of 4KB data.
C.For three strongly consistent read of 4KB data.
D.For two transactional read of 4KB data.

Correct Answer: B
As per the documentation,
"One read request unit represents one strongly consistent read request, or two eventually consistent read requests, for an item up to 4 KB in size. Two read request units represent one transactional read for items up to 4 KB."
Option A is incorrect because it should be one strongly consistent read.
Option B is CORRECT because 1 RCU represents two eventually consistent reads of 4KB data.
Option C is incorrect because, for three strongly consistent reads of 4KB data, RCU needs to be three.
Option D is incorrect because two transactional reads of 4KB data need the RCU to be 4(2x2) according to the above reference.
Please refer to the below link for DynamoDB read (strongly consistent and eventually consistent) and write requests.
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.ReadWriteCapacityMode.html