Blockchain CBSA Exam Practice Test Instant Access

Question 1

In common blockchain design, what is one common method to ''chain'' blocks of data together in order?

AStore the hash of the previous block within the current block

BHaving the genesis node store an ordered, mutable array of block hashes

CWriting each block into a separate file on the hard disk of the node

DAssigning an order number to each block so they can be sorted when requested

Answer : A

Question 2

In any cryptographic system, the key components are: the secret, the function, the key and the _______.

ACipher

BHash

CToken

DNone of the above

Answer : B

Question 3

In its simplest form, user identity on a blockchain can be unique and secure:

ABy users utilizing public blockchains

BUser identity cannot yet be protected on blockchain systems

CThrough cryptographic hashing

DBy users utilizing permissioned blockchains

Answer : C

Question 4

The primary difference between a blockchain and blockless solution is?

ABlockless solutions are slower

BBlockless solutions are less reliable

CTransactions are not verified by the entire network in a blockless environment

DBlockless solutions do not work on mobile devices

Answer : C

Question 5

Anonymity can be protected in blockchain applications by use of which of the following?

ACentralized application hosting

BEnd-to-end encryption

CCryptographic hashing

DBlockchain-based data cubes

Answer : B

Question 6

How are blocks of data ''chained'' together to ensure the integrity of transactions?

AThe hash of the previous block is written to the header of the current block

BThe ID of the previous block is stored in the current block

CA public key is stored in each block for data decryption

DThe hash of the genesis block is kept in all block headers

Answer : A

Question 7

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

Answer : C

Blockchain BTA Certified Blockchain Solution Architect Exam Practice Test

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Question 4

Question 5

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Question 7