BTA Certified Blockchain Developer - Hyperledger

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Blockchain CBDHBTA Certified Blockchain Developer HyperledgerBlockchain CBDH Dumps Available Here ain-exam/cbdh-dumps.htmlEnrolling now you will get access to 126 questions in a unique set ofCBDH dumpsQuestion 1Level DB is the default database for Hyperledger Fabric and is particularly appropriate when ledger statescomprise what type of data?Options:A. Complex key-value pairsB. Rich QueriesC. JSON data pairsD. Simple key-value pairsAnswer: DExplanation:Simple key-value pairs - LevelDB is the default and is particularly appropriate when ledger states aresimplekey-value pairs. A LevelDB database is closely co-located with a network node – it is embedded within thesame operating system process. CouchDB is a particularly appropriate choice when ledger states arestructured as JSON documents because CouchDB supports the rich queries and update of richer datatypesoften found in business transactions. Implementation-wise, CouchDB runs in a separate operating systemprocess, but there is still a 1:1 relation between a network node and a CouchDB instance. All of this isinvisibleto chaincode.Reference: se-1.3/ledger/ledger.htmlQuestion 2When creating a network according to an organization's structure and also bootstrap a channel what arethe

Blockchain CBDHfollowing artifacts we would need to generate?Options:A. Genesis Block, License File and Anchor Peer Configs for each organization.B. Genesis Block, ledger Configuration and Anchor Peer Configs for each organization.C. Genesis Block, Channel Configuration and Anchor Peer Configs for each organization.D. Genesis Block, Channel Configuration and Anchor MSP Configs for each organization.Answer: CExplanation:To create a network according to an organization's structure, and to bootstrap a channel, we will need togenerate the following artifacts: A genesis block, containing organization-specific certificates that serve toinitialize the Fabric blockchain. Channel configuration information. Anchor peer configurations for eachorganization. An anchor peer serves as a fulcrum within an organization, for cross-organization ledgersyncingusing the Fabric gossip protocol.Question 3Which Hyperledger tool would you select to invoke, deploy or query blocks, transactions and associateddata,network information (name, status, list of nodes), chain codes and transaction families, as well as otherrelevantinformation stored in the ledger?Options:A. Hyperledger QuiltB. Hyperledger CelloC. Hyperledger CaliperD. Hyperledger ExplorerAnswer: DExplanation:Hyperledger explorer: Hyperledger explorer, which was originally contributed by IBM, Intel, and DTCC, canview, invoke, deploy or query blocks, transactions and associated data, network information (name, status,listof nodes), chain codes and transaction families, as well as other relevant information stored in the ledger.Question 4

Blockchain CBDHBlockchain services consists of three major components.What are they? (Select three.)Options:A. Consensus ManagerB. Distributed LedgerC. Peer to Peer ProtocolD. Reputation ManagerE. Membership ServicesAnswer: A, B, CExplanation:1. P2P Protocol is implemented over HTTP/2 standards and uses Google RPC. P2P components definemessages used by peer nodes, from point to point to multicast. 2. Distributed Ledger manages the worldstateand the transaction log in the blockchain. 3. Consensus Manager defines the interface between theconsensusalgorithm and the other Hyperledger components.Question 5The gossip data dissemination protocol performs which three functions? (Choose three.)Options:A. Manages peer discovery and channel membershipB. Disseminates ledger data across all peers on the channelC. Manages channel membership onlyD. Sync ledger state across all peers on any channelE. Sync ledger state across all peers on the channelF. Manages peer discovery onlyAnswer: A, B, EExplanation:Gossip Protocol The gossip data dissemination protocol performs three functions Manages peer discoveryandchannel membership Disseminates ledger data across all peers on the channel Syncs ledger state acrossallpeers on the channel.

Blockchain CBDHReference: 0-alpha/gossip.htmlQuestion 6What Hyperledger sponsored tool is a new open-source application development framework, whichsimplifiesthe creation of Hyperledger Fabric blockchain applications, thus reducing the time and complexity ofdevelopment.The tool aims at helping users to create blockchain applications based on Hyperledger Fabric withoutneedingto know the low-level (Go Programming) details involved in blockchain networks?Options:A. Hyperledger QuiltB. Hyperledger ComposerC. Hyperledger ExplorerD. Hyperledger CelloAnswer: BExplanation:There is a new open-source application development framework, which simplifies the creation ofHyperledgerFabric blockchain applications, thus reducing the time and complexity of development. The tool aims athelpingusers to create blockchain applications based on Hyperledger Fabric without needing to know the low-level(GoProgramming) details involved in blockchain networks.Question 7The CA (Certificate Authority) in Hyperledger Fabric issues the certificates. These certificates are used foridentity validation and for transmission of encrypted data that only the owner (person, organization orsoftware)of a specific certificate is able to decrypt and read.What types of certificates are issued by the CA?Options:A. tcertB. ecertC. rootcert

Blockchain CBDHAnswer: A, B, CExplanation:Rootcert, tcert and ecert. As The CA (Fabric CA by default) issues a root certificate (rootCert) to eachmember(organization or individual) that is authorized to join the network. The CA also issues an enrollmentcertificate(eCert) to each member component, server-side applications and occasionally end users. Each enrolleduser isgranted an allocation of transaction certificates (tCerts). Each tCert authorizes one network transaction.Question 8Hyperledger Composer has the following two main components.Options:A. Composer Framework and a Business Network ArchiveB. Composer Playground and a Business Network ConfigurationC. Composer Playground and a Business Network ArchiveD. Distributed Ledger and a Business Network ArchiveE. Distributed Ledger and Composer playgroundAnswer: CExplanation:There are two parts: 1. Business Network Archive which essentially captures the core data in a businessnetwork, including the business model, transaction logic, and access controls, the Business NetworkArchivepackages these elements up and deploys them to a runtime. Business Network Archive files are stored as".bna” files. AND 2. Composer Playground which is web-based tool allows developers to learn HyperledgerComposer, model out their business network (domain), test that network, and deploy that network to a liveinstance of a blockchain network. The playground keeps the development model in browser storage,allowingthem to be easily uploaded or downloaded.Question 9The Hyperledger Fabric framework is implemented on what programming environment?Options:A. C B. Node.js

Blockchain CBDHC. GoD. PHPE. JavascriptF. PythonAnswer: CExplanation:Reference: se-1.3/prereqs.htmlQuestion 10You would like to download Hyperledger Fabric.What would be the command to start the process?Options:A. ftp clone git clone ftp clone BExplanation:Reference: you like to see more? Don't miss our CBDH PDFfile

What Hyperledger sponsored tool is a new open-source application development framework, which simplifies the creation of Hyperledger Fabric blockchain applications, thus reducing the time and complexity of development. The tool aims at helping users to create blockchain applications based on Hyperledger Fabric without needing

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