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Linux Foundation Hyperledger Fabric Certified Practitioner Exam
- Topic 1: Fundamentals of Blockchain: It includes sub-topics of Distributed Ledgers, Smart Contracts, and Consensus. The topic also covers Consensus and Business Benefits as well.
- Topic 2: Hyperledger Fabric Networks: The topic covers Network Structure, Transaction Flow, Ordering Service, Peers and World State Storage. Moreover, questions about Network Creation, Membership Service Providers, Maintenance and Operation, and Channel-related Operations also appear. Lastly, the topic delves into Design and Deployment of Production Networks.
- Topic 3: Smart Contracts: It focuses on Design and Implementation, Chaincode Lifecycle, Reading and Modifying the Ledger State, Executing Queries on the Ledger, Private Data and Private Data Collections, and State-based Endorsement Policies.
- Topic 4: Client Applications: This topic discusses Gateway Model, Offline Signing, Peer Gateway Service, and Smart Contract Invocation. It also covers the sub-topic of Chaincode and Block Eventing.
Free Linux Foundation Hyperledger Fabric Certified Practitioner Exam Actual Questions
Note: Premium Questions for Hyperledger Fabric Certified Practitioner were last updated On May. 10, 2024 (see below)
Each peer in the Hyperledger Fabric network hosts a copy of the ledger, which also belongs to what component?
In Hyperledger Fabric, each peer in the network hosts a copy of the ledger, which is associated with a member channel. The ledger itself is comprised of a blockchain to store the immutable, sequenced record in blocks, and a state database to maintain the current state of the ledger. There is one ledger per channel, and each peer maintains a copy of the ledger for each channel of which they are a member .
In Hyperledger Fabric, CouchDB is enabled as the state database by changing the state Database configuration option from goleveldb to what?
In Hyperledger Fabric, to enable CouchDB as the state database, the stateDatabase configuration option in the core.yaml file must be changed from goleveldb to CouchDB. This change directs the peer to use CouchDB instead of the default LevelDB for storing the world state, which can then be queried using rich queries and provides additional features like indexing.
Which of the following statements describes Chaincode correctly?
Chaincode in Hyperledger Fabric is essentially smart contract software that defines assets and the transaction instructions for modifying these assets on the ledger. Chaincode functions as the business logic layer of the network, where the rules for interacting with the ledger are specified. It is executed on the network peers and is used to encode the policies and constraints associated with asset exchanges or updates within the business network. This setup allows organizations to automate processes and enforce consistency and compliance across transactions.
Where would you generate a unique ID to represent an asset on the ledger?
In Hyperledger Fabric, a unique ID to represent an asset on the ledger is typically generated in the client application before the transaction is submitted to the blockchain. This approach ensures that each asset has a unique identifier, which is crucial for tracking and managing assets throughout their lifecycle on the ledger.
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