15 Questions
Explain the purpose of Hyperledger Fabric.
Hyperledger Fabric is a permissioned blockchain framework designed for businesses, focusing on privacy, confidentiality, and auditability.
What technology does Hyperledger Fabric use to host smart contracts and application logic?
Hyperledger Fabric uses container technology to host smart contracts (Chaincode) and application logic.
What are some features supported by Hyperledger Fabric?
Hyperledger Fabric supports private channels for sharing confidential information, pluggable consensus (ordering service), membership service provider services, and CouchDB database storage.
When was the Hyperledger Fabric project developed?
The project was developed by Binh Nguyen and his colleagues in 2015.
Describe the basic transaction flow in Hyperledger Fabric.
The basic transaction flow in Hyperledger involves clients submitting a transaction proposal through the Fabric SDK, which is then sent to all Endorsing Peers who verify and execute the transaction.
What is the main focus of Hyperledger Fabric?
Privacy, confidentiality, and auditability
Which technology does Hyperledger Fabric use to host smart contracts and application logic?
Docker containers
What feature of Hyperledger Fabric allows for sharing confidential information?
Private channels
Who developed the Hyperledger Fabric project in 2015?
Binh Nguyen
Which component of Hyperledger Fabric is responsible for ordering transactions and forming blocks?
Orderer
Explain the significance of using container technology to host smart contracts and application logic in Hyperledger Fabric.
Container technology in Hyperledger Fabric allows for the isolation of smart contracts and application logic, providing privacy, confidentiality, and auditability, which are essential for business use-cases.
What is the role of Endorsing Peers in the transaction flow of Hyperledger Fabric?
Endorsing Peers in Hyperledger Fabric verify and execute transaction proposals submitted by clients, ensuring the validity and consensus of the transactions before they are ordered and formed into a block.
How does Hyperledger Fabric achieve modular architecture in developing applications or solutions?
Hyperledger Fabric achieves modular architecture by allowing components such as consensus and membership services to be plug-and-play, providing flexibility in the development of applications and solutions.
What was the motivation behind the development of Hyperledger Fabric in 2015?
The motivation behind the development of Hyperledger Fabric in 2015 was the inadequacy of existing blockchain implementations for business use-cases, prompting the creation of a permissioned blockchain framework focused on privacy, confidentiality, and auditability.
Explain the role of the Orderer in the transaction flow of Hyperledger Fabric.
The Orderer in Hyperledger Fabric is responsible for receiving transaction proposals, ordering them in ascending order, and forming them into blocks, ensuring the integrity and consistency of the transactions.
Study Notes
Purpose and Main Focus
- Hyperledger Fabric is a blockchain platform designed to support the development of enterprise-grade blockchain solutions and applications.
- The main focus of Hyperledger Fabric is to provide a modular architecture for building private, permissioned blockchain networks.
Technology and Hosting
- Hyperledger Fabric uses Docker container technology to host smart contracts and application logic.
- This technology allows for isolation, scalability, and flexibility in deploying and managing chaincode (smart contracts) and application components.
Features
- Supports private, permissioned blockchain networks with secure and confidential transactions.
- Features a modular architecture, allowing for customization and flexibility in developing applications and solutions.
- Allows for sharing of confidential information through the use of channels.
History
- The Hyperledger Fabric project was developed in 2015 by IBM.
Transaction Flow
- The basic transaction flow in Hyperledger Fabric involves the following steps:
- Clients submit proposals to Endorsing Peers for endorsement.
- Endorsing Peers execute the chaincode and endorse the proposal.
- The endorsed proposal is sent to the Ordering Service (Orderer).
- The Orderer orders the transactions and forms blocks.
- The blocks are distributed to committing Peers for validation and committing to the ledger.
Components
- The Orderer is responsible for ordering transactions and forming blocks.
- Endorsing Peers play a role in the transaction flow, executing chaincode and endorsing proposals.
Modular Architecture
- Hyperledger Fabric achieves modular architecture by allowing for the customization and integration of different components, such as consensus algorithms, ledgers, and smart contracts.
Test your knowledge about Hyperledger Fabric, a permissioned blockchain framework designed for businesses, with a focus on privacy, confidentiality, and auditability. The quiz covers its use of container technology to host smart contracts, support for private channels, pluggable consensus, and membership service provider services.
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