- A
Amazon DynamoDB
Why wrong: DynamoDB is a managed NoSQL database — while it can store transaction records, it's not a blockchain service with distributed ledger capabilities.
- B
AWS Quantum Ledger Database (QLDB)
Why wrong: QLDB is a managed ledger database providing a transparent, immutable, cryptographically verifiable transaction log — it's centralized, not decentralized blockchain.
- C
Amazon Managed Blockchain
Amazon Managed Blockchain provides fully managed blockchain networks using Hyperledger Fabric and Ethereum, handling node provisioning, network configuration, and certificate management.
- D
Amazon Neptune
Why wrong: Neptune is a managed graph database — it's not a blockchain service.
Question 810 of 1,024
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which AWS service provides a managed blockchain network using open-source frameworks like Hyperledger Fabric and Ethereum?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon Managed Blockchain
Amazon Managed Blockchain is the correct AWS service because it is specifically designed to create and manage blockchain networks using popular open-source frameworks like Hyperledger Fabric and Ethereum. It handles the heavy lifting of setting up the blockchain infrastructure, including peer nodes, ordering service, and certificate authorities, allowing developers to focus on building decentralized applications.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon DynamoDB
Why it's wrong here
DynamoDB is a managed NoSQL database — while it can store transaction records, it's not a blockchain service with distributed ledger capabilities.
- ✗
AWS Quantum Ledger Database (QLDB)
Why it's wrong here
QLDB is a managed ledger database providing a transparent, immutable, cryptographically verifiable transaction log — it's centralized, not decentralized blockchain.
- ✓
Amazon Managed Blockchain
Why this is correct
Amazon Managed Blockchain provides fully managed blockchain networks using Hyperledger Fabric and Ethereum, handling node provisioning, network configuration, and certificate management.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon Neptune
Why it's wrong here
Neptune is a managed graph database — it's not a blockchain service.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS QLDB (a centralized ledger) with a blockchain service, but QLDB does not support decentralized consensus or open-source blockchain frameworks like Hyperledger Fabric and Ethereum.
Detailed technical explanation
How to think about this question
Amazon Managed Blockchain abstracts the complexity of setting up a Hyperledger Fabric network by automatically provisioning the ordering service, peer nodes, and certificate authorities (CAs) across multiple Availability Zones. It integrates with AWS Identity and Access Management (IAM) for authentication and AWS Key Management Service (KMS) for encryption, and it supports the Hyperledger Fabric v1.4 and v2.2 frameworks, as well as Ethereum for public blockchain scenarios. A real-world use case is a supply chain consortium where multiple organizations need a shared, immutable ledger to track goods without relying on a central authority.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Cloud Technology and Services — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Managed Blockchain — Amazon Managed Blockchain is the correct AWS service because it is specifically designed to create and manage blockchain networks using popular open-source frameworks like Hyperledger Fabric and Ethereum. It handles the heavy lifting of setting up the blockchain infrastructure, including peer nodes, ordering service, and certificate authorities, allowing developers to focus on building decentralized applications.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
This CLF-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CLF-C02 exam.
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