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

Question

Options

• ACopy the records from the application into an Amazon Redshift cluster.
• BCopy the records from the application into an Amazon Neptune cluster.
• CCopy the records from the application into an Amazon Timestream database.
• DCopy the records from the application into an Amazon Quantum Ledger Database (Amazon

• A
  5% (2)
• B
  18% (7)
• C
  8% (3)
• D
  69% (27)

Explanation

Amazon QLDB is the most cost-effective and suitable service for maintainingimmutable, cryptographically verifiable logsof data changes. QLDB provides a fully managed ledgerdatabase 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.

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