Question

A supply chain company is looking for a database that provides a centrally verifiable history of all changes made to data residing in it. This functionality is critical for the product and needs to be available off-the-shelf without the need for any customizations.

Which of the following databases is the right choice for this use-case?

1. Amazon Quantum Ledger Database
2. Amazon Neptune
3. Amazon Managed Blockchain
4. Amazon Timestream

Answer 1

The Amazon Quantum Ledger Database (QLDB) offers an immutable transaction log, making it the right choice for a supply chain company seeking a database with a centrally verifiable history of all data changes.

Step-by-step explanation:

The Amazon Quantum Ledger Database (QLDB) is the most suitable choice for a company seeking a database with a centrally verifiable history of all changes made to data. Unlike traditional databases, QLDB provides an immutable transaction log known as the ledger. Every change is cryptographically chained and verifiable, ensuring that the data history can be trusted without the need for manual reconciliation. Amazon QLDB is designed to provide off-the-shelf functionality with no additional customizations needed for tracking the complete and verifiable history of modifications to the data within the database.