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Free CBDH Exam Braindumps (page: 21)

Page 20 of 49
PDF with 195 Questions

The use of cryptographic hashing with blockchain provides for which of the following?

  1. Providing for flexibility in security design
  2. Providing for ease of analytical insight
  3. Ensuring data blocks are mutable
  4. Ensuring data blocks are immutable

Answer(s): D

Explanation:



What function in chaincode will be used to store a state on the blockchain ledger?

  1. ChaincodeStubInterface.getFunctionAndParameters
  2. ChaincodelLedgerInterface.PlaceState
  3. ChaincodeStubInterface.PlaceState
  4. ChaincodeStubInterface.PutState
  5. ChaincodeLedgerInterfaceStoreState

Answer(s): D



In Hyperledger Fabric each channel will manage its own _______ and ________? Select best answer.

  1. Nodes, Peers, Chaincode
  2. Chaincode, SQL
  3. Ledgers, Logging
  4. Ledgers, Chaincode
  5. Ledgers, Chaincode and APIS

Answer(s): D

Explanation:

Chaincode may be deployed on multiple channels, each instance is isolated within its channel. Each channel maintains their own chaincode and ledger.



There are generally two ways to develop business contracts in Hyperledger. (Select two.)

  1. Code individual contracts into standalone instances of chaincode.
  2. Use chaincode to create decentralized applications that manage the life cycle of one or multiple types of business contracts, and let end users instantiate instances of contracts within these applications.
  3. Code multiple contracts into distributed instances of chaincode.
  4. Code individual contracts into distributed instances of chaincode.
  5. Use chaincode to create centralized applications that manage the life cycle of one or multiple types of business contracts, and let end users instantiate instances of contacts within these applications.

Answer(s): A,B

Explanation:

There are generally two ways to develop business contracts: the first way is to code individual contracts into standalone instances of chaincode; the second way, and probably the more efficient way, is to use chaincode to create decentralized applications that manage the life cycle of one or multiple types of business contracts, and let end users instantiate instances of contracts within these applications






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