Exin BLOCKCHAINF Exam Questions Instant Access

Question 1

The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.

Aincrease the use of cryptocurrency

Bspeed up the internet

Cmake Bitcoin less expensive

Dincrease device connectivity

Answer : D

Question 2

In its simplest state, a ledger_______________.

Adetermines which node stores the assets

Brecords the transfer of an asset between participants

Cproves ownership on the Blockchain

Dprovides privacy to users on the Blockchain

Answer : B

Question 3

A smart contract on the Blockchain provides __________. Select all that apply

ASpecific actions to be taken on events or transactions

BThe same contracts a bank provides

CA set of business conditions that must be met

DBetter anonymity of those making transactions

Answer : C

Question 4

Once a record has been added to a Blockchain it can be altered.

ATrue

BFalse

Answer : B

Question 5

How much data can be represented by the data hash of a block?

Aa maximum of 20 MB

Bvirtually any amount

Cnot to exceed 100k bytes

Dthe hash is only a memory location

Answer : B

Question 6

Blockchain is faster and more efficient than a standard database.

ATrue

BFalse

Answer : B

Question 7

What happens if a block is confirmed at the same time?

AThe 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.

BNodes select which block to be added to the Blockchain

CBoth chains are deleted, and the unconfirmed transactions are added back to the pool

DThe Orderer Block confirms which block has the most confirmed transactions

ENone of the above

Answer : B

Exin Blockchain Foundation BLOCKCHAINF Exam Questions