CBBF 무료 덤프문제 온라인 액세스

The transaction has contained in a block is the ___________.

• A.Same as the user private key
• B.Digital fingerprint of the block
• C.Metadata used for ID
• D.Unique number to show it's a Bitcoin block

Which of the following problems did Blockchain solve for cryptocurrencies?

• A.Double Spending
• B.None of the above
• C.Anonymity
• D.Destination of currencies

The Ethereum Blockchain provides a/an _____________ virtual machine.

• A.turing-complete
• B.Windows compatible
• C.energy efficient
• D.Linux compatible

What is a private Blockchain used instead of a public one?

• A.It requires less mining power that a public Blockchain
• B.It requires fewer administrators to manage it
• C.It is less expensive to develop
• D.To limit user access and permissions

The height of a block is the______________ in the chain between it and the genesis block.

• A.size of the memory cache
• B.number of blocks
• C.metadata that is
• D.Merkle tree hash