최신 BLOCKCHAINF 무료덤프 - EXIN Blockchain Foundation

A. A digital currency

B. All of the above

C. A database of usable secret data

D. An unchangeable record

E. A Smart Contract

A. True

B. False

A. Digital fingerprint of the block

B. Same as the user private key

C. Unique number to show it's a Bitcoin block

D. Metadata used for ID

A. True

B. False

A. Double Spending

B. None of the above

C. Anonymity

D. Destination of currencies

A. Through Merkle trees

B. Through public/private key cryptography

C. Through consensus algorithms such as Proof of Work

D. None of the above

E. By publishing only the block address

A. Proof of Activity

B. All of the above

C. Proof of Work

D. Proof of Burn

E. Proof of Stake

A. Unable to be changed

B. None of the above

C. Highly secure

D. Fault tolerant