Blockchain CBSA Exam Questions Instant Access

Question 1

Which of the following cryptocurrencies use an alternate consensus method called "Scrypt" to BTC's Proof of Work (POW) SHA-256 algorithm?

ARipple

BPeercoin

CLitecoin

DSteemit

Answer : C

The Scrypt hash function was initially implemented by the Litecoin development team to avoid what are known, ASICs, from being able mine its cryptocurrency. When mining for cryptocurrencies, users typically have an option between: a CPU, GPU or ASIC miner.

Question 2

The ____________of the tree is the topmost node and hence this tree is represented upside down. The bottommost nodes are called as ________nodes. Each node is simply a cryptographic hash of a transaction.

In the above diagram, Transaction A,B, C,C from the leaves of the tree. Select one.

ARoot, Hash

BRoot, Leaf Nodes

CHas, Root nodes

DLeaf nodes, Root

ELeaf Nodes, Root

Answer : B

The root of the tree is the topmost node and hence this tree is represented upside down. The bottommost nodes are called as leaf nodes. Each node is simply a cryptographic hash of a transaction. In the above diagram, Transaction A,B,C,C form the leaves of the tree.

Question 3

Which technical feature of blockchain best promotes the notion of a blockchain being ''censorship resistant''?

AAn immutable ledger of transactions

BPermissions-based transactions

CSmart Contracts/transactional code that is executed ''on chain''

DConsensus systems through Proof of Work and Proof of Stake

Answer : A

Question 4

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 5

Which of the following scenarios and databases is least suited to be utilized by a blockchain solution?

AScenario: Law enforcement system; Dataset: Criminal Arrests, Warrants for Arrest, Conviction Date

BScenario: An Email campaign service; Dataset: Recipient Email, From Email; Subject, Body

CScenario: A family filter wifi router; Dataset: Websites Visited, Websites Blocked, Download History

DScenario: Credit score app; Dataset: Credit Score, Hard Inquiries; Collections, Date Removed, Date Added

Answer : A

Question 6

What are two cryptocurrencies that you would expect to see mining equipment with ASICS? (Select two.)

ABitcoin

BEthereum

CNeo

DLitecoin

EMonero

Answer : A, D

Question 7

Select the two kinds of accounts in Ethereum which share the same address space. (Select two.)

AGas Account

BContract Accounts

CExternal Accounts

DInternal Accounts

EdApp Accounts

Answer : B, C

Blockchain BTA Certified Blockchain Solution Architect CBSA Exam Questions