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Answer: Amazon DynamoDB with Transact* operations, Amazon Aurora MySQL within a transaction block
The correct answers are 'Amazon DynamoDB with Transact* operations' (C) and 'Amazon Aurora MySQL with operations made within a transaction block' (D). Both of these services support transactional updates. Amazon DynamoDB allows atomic transactions with its TransactWriteItems and TransactGetItems operations. Amazon Aurora MySQL supports SQL transactions, enabling the atomic execution of multiple operations. Options A and B do not support atomic transactions, and Amazon Athena (E) is not designed for transactional updates.
Author: LeetQuiz Editorial Team
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Which two AWS services support transactional updates to ensure that both users' records are updated atomically in a gaming platform's item trading feature, with the ability to roll back if any part of the transaction fails?
A
Amazon DynamoDB using the ConsistentRead parameter
B
Amazon ElastiCache for Memcached within a transaction block
C
Amazon DynamoDB with Transact* operations
D
Amazon Aurora MySQL within a transaction block
E
Amazon Athena within a transaction block
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