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Question 847 - SAA-C03 discussion

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A company maintains its accounting records in a custom application that runs on Amazon EC2 instances. The company needs to migrate the data to an AWS managed service for development and maintenance of the application data. The solution must require minimal operational support and provide immutable, cryptographically verifiable logs of data changes.

Which solution will meet these requirements MOST cost-effectively?

A.

Copy the records from the application into an Amazon Redshift cluster.

Answers
A.

Copy the records from the application into an Amazon Redshift cluster.

B.

Copy the records from the application into an Amazon Neptune cluster.

Answers
B.

Copy the records from the application into an Amazon Neptune cluster.

C.

Copy the records from the application into an Amazon Timestream database.

Answers
C.

Copy the records from the application into an Amazon Timestream database.

D.

Copy the records from the application into an Amazon Quantum Ledger Database (Amazon QLDB) ledger.

Answers
D.

Copy the records from the application into an Amazon Quantum Ledger Database (Amazon QLDB) ledger.

Suggested answer: D

Explanation:

Amazon QLDB is the most cost-effective and suitable service for maintaining immutable, cryptographically verifiable logs of data changes. QLDB provides a fully managed ledger database with a built-in cryptographic hash chain, making it ideal for recording changes to accounting records, ensuring data integrity and security.

QLDB reduces operational overhead by offering fully managed services, so there's no need for server management, and it's built specifically to ensure immutability and verifiability, making it the best fit for the given requirements.

Option A (Redshift): Redshift is designed for analytics and not for immutable, cryptographically verifiable logs.

Option B (Neptune): Neptune is a graph database, which is not suitable for this use case.

Option C (Timestream): Timestream is a time series database optimized for time-stamped data, but it does not provide immutable or cryptographically verifiable logs.

AWS

Reference:

Amazon QLDB

How QLDB Works

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asked 27/10/2024
Jorge Correa
40 questions
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