Blockchain CBSA Exam Practice Test Instant Access

Question 1

Which of the following is NOT a requirement of an enterprise blockchain typically?

AAppend-only distributed system of record shared across business network

BCost efficient blockchain

CTransactions are endorsed by relevant participants

DEnsuring appropriate visibility; transactions are secure, authenticated & verifiable

Answer : B

Question 2

Blockchain systems assume all parties are trusted by all other parties in the exchange or ecosystem.

AFALSE

BTRUE

Answer : A

Question 3

The most popular Ethereum development framework is currently Truffle.

What are three features of Truffle? (Select three.)

AScriptable deployment & migrations framework.

BAutomated contract testing with Mocha and Chai.

CTakes Dapp transactions via Ws-rpc, json-rpc, ipc-rpc.

DBuilt-in smart contract compilation, linking, deployment and binary management.

EAutomated contract testing with Mocha only

Answer : A, B, D

Truffle is a development environment, testing framework and asset pipeline for Ethereum, aiming to make life as an Ethereum developer easier.

Question 4

Ethereum is a programmable blockchain. What is one of the following reasons is NOT correct regarding Ethereum programmability?

AAllows users to create their own operations on any complexity

BIt serves as a platform for many different types of decentralized blockchain applications

CDoes not allow users to create their own operations of any complexity

DEthereum also includes a peer-to-peer network protocol

Answer : C

Question 5

Which of the following hashing algos is considered to be the strongest?

ARSA

BSHA-2

CAES

DMD-5

ESHA

Answer : B

SHA-2 consists of a set of 6 hashing algorithms, and is considered the strongest. SHA-256 or above is recommended for situations are security is vital. SHA-256 produces 32-byte hash values.

Question 6

On the Ethereum blockchain the ''nonce'' of a transaction:

AHolds the gas amount to be paid to the miner writing the block that contains the transaction

BIs used to ensure that transactions by a given account are written in sequential order

CIs reset to zero after each successfully mined blocked

DMust always start with four zeroes

Answer : B

Question 7

What is diagram referencing below?

AAND Gate

BXOR Gate

COXR Gate

DNAND Gate

Answer : B

XOR or ''Exclusive OR'' is a logic gate.

Blockchain CBSA BTA Certified Blockchain Solution Architect Exam Practice Test