CBSA 무료 덤프문제 온라인 액세스

Fabric Ledger has two specific parts. Select answer with the proper two parts.

• A.State Data, Transaction logs
• B.LevelIDb, CouchDB
• C.Transaction Logs, CouchDB
• D.State Data, Transactional Data

If a hard fork occurs on a public blockchain software and 20 running nodes choose not to update, what can be said about those 20 nodes?

• A.They are flagged for removal from the network and can no longer collect fees
• B.They are unable to achieve consensus
• C.They are considered "out of compliance"
• D.They are effectually now operating on a different blockchain network than the nodes that updated

Proof of Stake based blockchain systems use what design to permit valid write transactions?

• A.Validator nodes each give or pay a stake in order to write transactions, and if malicious, will lose their stake
• B.Stakeholders or early product investors host nodes that approve or disapprove transactions from other nodes
• C.Every node on the network holds an equal stake, and if malicious, gets flagged for removal
• D.A genesis "Stake" node approves or disapproves transactions announced from other nodes

It is impossible to persist media types such as MP3 and MOV on any distributed ledger.

• A.TRUE
• B.FALSE

Bitcoin uses what proof of work consensus system?

• A.Hashcash
• B.Whirlpool
• C.Cubehash512
• D.Scrypt-Jane
• E.Scrypt-n