EXIN Blockchain Foundation - BLOCKCHAINF Exam Practice Test

A. The blocks splits into two chains. Blocks are then added to each chain until one chain becomes larger. The longest chain is then considered to be the Blockchain. B. The Orderer Block confirms which block has the most confirmed transactions C. Nodes select which block to be added to the Blockchain D. Both chains are deleted, and the unconfirmed transactions are added back to the pool E. None of the above

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

A. True B. False

A. By not charging users monthly subscription costs B. By placing their name on the Blockchain C. By paying the miners with cryptocurrency D. By paying miners with U.S. dollars

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

A. Product to Person B. Person to Person C. Peer to Peer D. None of the above E. Public to Person

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

A. There is no way to change Blockchain protocol B. There are no restrictions, a developer could just change the code C. change the orderer configuration D. None of the above E. A developer would need to initiate a hard fork

A. Medical records B. A video sharing website C. All of the above D. Voting E. Identity management