CBDH

CBDH practice questions, page 3 of 5, with answer review and explanations.

Question 11

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?

  1. Limited Liability Corporation
  2. Decentralized Autonomous Organization (DAO)
  3. Corporation
  4. Trust

Question 12

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.)

  1. 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
  2. Invoke 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
  3. Init is called during Instantiate transaction after the chaincode ledger has been established for the first time, allowing the chaincode to initialize its internal data
  4. 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 13

Blockchain solutions are comprised of four building blocks. Which of the following answers list the building blocks?

  1. Shared ledger, Privacy, Trust, and Smart Contracts or (Chaincode)
  2. Shared ledger, Centralization, Trustless, and Smart Contracts or (Chaincode)
  3. Shared ledger, Privacy, Trustless, and Smart Contracts or (Chaincode)
  4. Shared ledger, Centralization, Trust, and Smart Contacts or (Chaincode)

Question 14

An_____________ is defined as a communication node that is responsible for the distribution of blockchain transactions in Hyperledger Fabric.

  1. MSP
  2. Peer Node
  3. Client Node
  4. Endorsing Node
  5. Orderer

Question 15

The ledger system in Hyperledger Fabric uses what database by default?

  1. CouchDB
  2. LevelDB
  3. MySQL
  4. MS SQL
  5. PostGres SQL