Blockchain CBDH Exam Practice Test Instant Access

Question 1

The Hyperledger Project has a modular umbrella schema to its organization which includes three parts of the organizational schem

a. As part of the organizational schema, it includes an ''Infrastructure'' Module that is structured with four layers.

What layer below is NOT part of the structure?

AArchitecture

BOrganizational

CLegal

DTechnical

Answer : A

The Infrastructure Module includes the following four modules: Technical, Legal, Marketing, and Organizational.

Question 2

When reviewing chaincode you see a function called "ChaincodeStubInterface" in the program.

What does this function do?

AIt is used to access the ledger.

BIt is used to access the chaincode interface.

CIt is used to access the ledger and modify the ledger.

DIt is used to stop the chaincode interface.

Answer : C

References:

Question 3

What type of organization can be thought of as a corporation run without any human involvement under the control of an incorruptible set of business rules?

ALimited Liability Corporation

BDecentralized Autonomous Organization (DAO)

CCorporation

DTrust

Answer : B

Decentralized Autonomous Organization (DAO) can be thought of as a corporation run without any human involvement under the control of an incorruptible set of business rules. A DAO can also be seen as the most complex form of a smart contract, where the bylaws of the decentralized organization are embedded into the code of the smart contract, using complex token governance rules.

Question 4

The Hyperledger Fabric framework is implemented on what programming environment?

AC++

BNode.js

CGo

DPHP

EJavascript

FPython

Answer : C

References:

Question 5

Each channel manages its own_____and______

AChamcode, Ledger

BPeers, Chamcode

CLedger, Peers

Answer : A

Question 6

Chaincode in Hyperledger Fabric is a decentralized transactional program which is running on the validating nodes. Chaincode implements the Chaincode interface in particular, Init and Invoke functions.

Which two statements about Chaincode is correct? (Select two.)

AInit is called during instantiate transaction after the chaincode container has been established for the first time, allowing the chaincode to initialize its internal data

BInvoke is called to update or query the ledger after a proposal transaction. Update state variables are committed to the ledger before the transaction is committed

CInit is called during Instantiate transaction after the chaincode ledger has been established for the first time, allowing the chaincode to initialize its internal data

DInvoke is called to update or query the ledger in a proposal transaction. Updated state variables are not committed to the ledger until the transaction is committed.

Answer : A, D

Chaincode is a decentralized transactional program, running on the validating nodes. As with every chaincode, it implements the Chaincode interface in particular, Init and Invoke functions. Init is called during Instantiate transaction after the chaincode container has been established for the first time, allowing the chaincode to initialize its internal data. Invoke is called to update or query the ledger in a proposal transaction. Updated state variables are not committed to the ledger until the transaction is committed.

Question 7

The security module works in conjunction with the ________________________ module to provide access control service to any data recorded and business logic deployed on a chain network.

AHSM

BMembership Services

CChaincode

DConsensus

Answer : B

The security module works in conjunction with the membership service module to provide access control service to any data recorded and business logic deployed on a chain network.

Blockchain CBDH BTA Certified Blockchain Developer - Hyperledger Exam Practice Test