Free Blockchain CBBF Exam Dumps Questions & Answers

Blockchain is always distributed.

• A.  False
• B.  True

How are blocks chained together?

• A.  Information of the previous block is embedded into the current block through hashing
• B.  With a physical chain
• C.  By sharing the same transaction details
• D.  Information of the current block is embedded into the genesis block

What is Ethereum?

• A.  Another name for Blockchain
• B.  A platform for creating decentralized applications
• C.  Another name for Bitcoin
• D.  A currency

What is the focus or primary goal of a private Blockchain? Select all that apply.

• A.  To provide anonymity in business
• B.  To provide transparency and trust for business while remaining secure
• C.  To save money by eliminating intermediaries
• D.  To create a distributed database that allows for CRUD

Which of the following statements sums up the Proof of Work consensus process?

• A.  Miners send assets to an inactive address. This process selects the next owner of a block.
• B.  Miners put up a stake. A miner is then selected based on stake value to add a new block to the chain. If a miner adds an invalid block to the chain, that miner loses their stake.
• C.  All nodes agree on the data of the transaction.
• D.  Miners complete to find a nonce results in a hash that starts with a predetermined number of leading zeros.