Blockchain CBSA Practice Questions| TestInsights

Question 1

In Proof of Work group consensus, the ''nonce'' refers to?

AThe random data to be combined with the block data which will produce a hash output matching the current difficulty level

BRandom nonsense data inserted at the end of a block to fill it completely

CThe average Bitcoin price over the last 90 days

DNone of the above

Correct : A

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AThe random data to be combined with the block data which will produce a hash output matching the current difficulty level

BRandom nonsense data inserted at the end of a block to fill it completely

CThe average Bitcoin price over the last 90 days

DNone of the above

Question 2

In common blockchain design, blockchain addresses or ''accounts'' are generated by:

AA PRNG output guaranteed to be unique

BA server/node timestamp added to a PRNG output

CCreating a hash based on a cryptographic public key and various meta data

DThe most recent block height hash combined with a cryptographic private key

Correct : C

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AA PRNG output guaranteed to be unique

BA server/node timestamp added to a PRNG output

CCreating a hash based on a cryptographic public key and various meta data

DThe most recent block height hash combined with a cryptographic private key

Question 3

When a blockchain software is updated with new functionality that breaks or modifies the rules of the previous version of the software, what has just occurred?

AA hard fork

BRevision Reversal Attack

CA software fault

DAutonomous update consensus

Correct : A

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AA hard fork

BRevision Reversal Attack

CA software fault

DAutonomous update consensus

Question 4

Complex application components should try to be concentrated in which application layer?

AInterface layer / middle

BPresentation / top

CSmart Contract / bottom

DNone of the above

Correct : B

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AInterface layer / middle

BPresentation / top

CSmart Contract / bottom

DNone of the above

Question 5

The two main types of transactions you can perform in Hyperledger Fabric are:

AChaincode Read and Chaincode Write transactions

BDeploy and Invoke transactions

CHFRead and HFAppend transactions

DCall and Write transactions

Correct : B

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AChaincode Read and Chaincode Write transactions

BDeploy and Invoke transactions

CHFRead and HFAppend transactions

DCall and Write transactions

Curious about Actual Blockchain CBSA (CBSA) Exam Questions?

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