Blockchain CBSA Exam Questions Instant Access

Question 1

What are some advantages of Proof of Stake(POS) mining over Proof of Work(POW) mining? (Select three.)

AEnergy efficient in regards to that it could consume for electricity as compared to PoW

BFaster Hashing algorithms

CNo need for expensive compared to POW

DFaster validations compared to POW

EBetter blockchain security compared to POW

Answer : A, C, D

This eliminates the below challenges from PoW and believed to have an advantage.

No need of expensive hardware (a normal laptop or computer running the respective coin's Validator client will do as long as your laptop or computer is online)

Energy efficient as it won't consume high electricity as PoW does More loyal Validators As higher the stake the Validators have for a long time, more chances for the Validator to be picked up for ''forging'' and earn the transaction fee Faster validations

Question 2

What is a developmentlanguage which lets developers solve any class of problem in existence given infinite time and resources?

ATuring Complete

BTuring Incomplete

CSolidity

DMist

EJVM

FEVM

Answer : A

Turing Complete -- A language which lets developers solve any class of problem in existence given infinite time and resources Vs Turing Incomplete -- Can't solve all types of problems, such as problems with loops and iterations (Bitcoin)

Question 3

What are two specific advantages of using Hyperledger Fabric? (Select two.)

ANo order service needed

BUse any programming language available

COpen Source Modular architecture

DAllows components to be plug-and-play

EMakes mining cryptos more efficient

Answer : C, D

Hyperledger is an open source collaborative effort created for open industrial blockchain development. It started in December 2015 by the Linux Foundation. Linux Foundation's objectives were to create an environment in which communities of software developers and companies meet and coordinate to build blockchain frameworks.

Question 4

Hyperledger is an enterprise focused blockchain project. This project was released by a consortium under the umbrella of the Linux Foundation's Hyperledger Project.

What year did Hyperledger go live?

A2013

B2012

C2015

D2009

Answer : C

Question 5

Composer Modeling Language is an object-oriented modeling language that defines the domain model for a business network definition. The modeling language is saved as a __________ file.

A.json

B.go

C.txt

D.ico

E.cto

Answer : E

Composer Modeling Language is an object-oriented modeling language that defines the domain model for a business network definition. The modeling language is saved as a .cto file.

Question 6

What blockchain is considered Blockchain 1.0, the first blockchain?

ABitcoin Cash

BEthereum

CLitecoin

DBitcoin

ENEO

Answer : D

Blockchain 1.0, Grandpa Bitcoin

Question 7

Taking a series of unrelated transactions and writing them to a particular block is:

AHighly insecure and considered bad practice

BMost common in public blockchain

CMost common in permissioned blockchains

DRequired among all blockchains

Answer : A

Blockchain BTA Certified Blockchain Solution Architect CBSA Exam Questions