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CBDH BTA Certified Blockchain Developer - Hyperledger Fabric Questions and Answers

Questions 4

The Hyperledger Project has a modular umbrella schema to its organization which includes three parts of the organizational schema. As part of the organizational schema, it includes an “Infrastructure” Module that is structured with four layers.

What layer below is NOT part of the structure? 

Options:

A.

Architecture

B.

Organizational

C.

Legal

D.

Technical

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Questions 5

In Hyperledger Composer resources are declared which three ways? (Choose three.)

Options:

A.

Assets, orderers, transactions, and events

B.

Concepts

C.

Assets, participants, transactions, end events

D.

Collections

E.

Non Enumerated types

F.

Enumerated types

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Questions 6

Exhibit.

What does the code snippet displayed do?

Options:

A.

It is called on deploy to initialize the ledger

B.

It is called per deletion of the chamcode

C.

It is called on redploy or upgrade to build the blockchain

D.

It is called per transaction on the chaincode

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Questions 7

What means "Forking" the Hyperledger Fabric Github repository? (Select two.)

Options:

A.

Fork will fork the entire repository including all the branches.

B.

Forking is not allowed in Github.

C.

Moving this repository to your GitHub account and removing contents from previous repository.

D.

Fork will fork the specific repository without all the branches.

E.

Creating a copy of this repository under your GitHub account.

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Questions 8

Hyperledger Composer has the following two main components.

Options:

A.

Composer Framework and a Business Network Archive

B.

Composer Playground and a Business Network Configuration

C.

Composer Playground and a Business Network Archive

D.

Distributed Ledger and a Business Network Archive

E.

Distributed Ledger and Composer playground

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Questions 9

Which of the characteristic is desired in a DLT for business?

Options:

A.

Permissioned

B.

Confidential Transaction

C.

No Cryptocurrency

D.

Programmable

E.

All of the above

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Questions 10

Which of the following statements would be true regarding Hyperledger Composer Playground? 

Options:

A.

Composer Playground allows for CRUD (create, read, update, delete) operations to be performed on asset transactions which are logged but not created.

B.

Composer Playground allows for CRUD (create, read, update, delete) operations to be performed on asset transactions which are stored in the database and logged.

C.

Composer Playground allows for CRUD (create, read, update, delete) operations to be performed on asset transactions which are created but lot logger.

D.

Composer Playground allows for CRUD (create, read, update, delete) operations to be performed on asset transactions which are created and logged.

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Questions 11

A ledger has 2 parts, which one is not part of the ledger?

Options:

A.

Application log

B.

Transaction log

C.

State data

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Questions 12

The advantages of using Hyperledger Fabric include which of the following?

Options:

A.

Having a modular component structure

B.

Having a native token

C.

Having a POW mining algorithm

D.

Ability to use your programs from SQL

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Questions 13

REST (Representational State Transfer) Server is often used to proxy requests to Hyperledger chaincode.

What value does using REST APIS provide?

Options:

A.

Provides a well-defined process for accessing blockchain services.

B.

Provides a well-defined middleware for connecting to off chain services such as Bitcoin.

C.

Provides a well-defined middleware for connecting to blockchain services.

D.

Provides a well-defined process for accessing web services.

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Questions 14

A . ceo file has which of the following elements:

Options:

A.

Name space

B.

Resources

C.

Imports from other name spaces

D.

All of the above

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Questions 15

In Hyperledger Fabric, miners are called?

Options:

A.

Committer Peer

B.

There are no miners in Hyperledger

C.

Endorser Node

D.

Channels

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Questions 16

Smart contracts are created by computer programmers through the help of smart contract development tools and are entirely digital. These programs are usually written using programming code languages.

Which of the following languages would not be ideal for use in smart contracts?

Options:

A.

Python

B.

Assembler

C.

C++

D.

Go

E.

Java

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Questions 17

Hyperledger is an open source project that came out of the ___________________________. It was created in order to help advance _____________________________blockchain technologies. It's a global open source collaboration involving leaders from numerous industries.

Options:

A.

Linux Foundation, Cross Industry

B.

Defense Industry, Military Communications

C.

Linux Foundation, Military Communications

D.

Defense Industry, Financial Oriented

E.

Linux Foundation, Financial Oriented

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Questions 18

When the________, ______________ or ________function of a chaincode is called, the fabric passes the stub *shim.ChaincodeStub parameter. (Select three.)

Options:

A.

Query

B.

List

C.

Invoke

D.

Init

E.

Write

F.

Delete

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Questions 19

What is the best description of how Kafka is utilized for consensus approach in Hyperledger Fabric?

Options:

A.

Kafka does not support crash tolerance but it does not offer protection against rogue nodes in the network.

B.

Provides Byzantine fault tolerance. Finality happens in a matter of seconds. Scale to petabytes of data, distributed across many clusters.

C.

Provides Byzantine fault tolerance. Finality happens in a matter of seconds.

D.

Permissioned voting based Leader does ordering. Only in-sync replicas can be voted as leader.

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Questions 20

Hyperledger Fabric is a blockchain implementation that is designed for deploying a modular and extensible architecture.

Which of the following is NOT true about the architecture of Hyperledger? 

Options:

A.

It is modular and extensible

B.

It allows for interoperability

C.

It has a native cryptocurrency token

D.

It has a rich API development capacity

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Questions 21

Concepts, like other resources, can be instantiated

Options:

A.

TRUE

B.

FALSE

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Questions 22

All but one can be used as Orderer implementation:

Options:

A.

Active MQ

B.

KKafka

C.

Solo

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Questions 23

When reviewing chaincode you see a function called "ChaincodeStubInterface" in the program.

What does this function do?

Options:

A.

It is used to access the ledger.

B.

It is used to access the chaincode interface.

C.

It is used to access the ledger and modify the ledger.

D.

It is used to stop the chaincode interface.

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Questions 24

When compared to public blockchain technologies, what are key Hyperledger Fabric differences?

Options:

A.

Privacy

B.

Confidentiality

C.

Provisionmg/Permissioning

D.

All of the above

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Questions 25

Exhibit.

Based on the chaincode displayed, which function returns the value of the specified asset key?

Options:

A.

main

B.

Init

C.

Invoke

D.

get

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Questions 26

When creating a network according to an organization's structure and also bootstrap a channel what are the following artifacts we would need to generate? 

Options:

A.

Genesis Block, License File and Anchor Peer Configs for each organization.

B.

Genesis Block, ledger Configuration and Anchor Peer Configs for each organization.

C.

Genesis Block, Channel Configuration and Anchor Peer Configs for each organization.

D.

Genesis Block, Channel Configuration and Anchor MSP Configs for each organization.

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Questions 27

The security module works in conjunction with the ________________________ module to provide access control service to any data recorded and business logic deployed on a chain network. 

Options:

A.

HSM

B.

Membership Services

C.

Chaincode

D.

Consensus

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Questions 28

What services provides the capability to provide authorized entities the means to link transactions of individual users or groups of users according to the affiliation or roles?

Options:

A.

Authentication Services

B.

Registration Services

C.

Identity Management

D.

Auditability Services

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Questions 29

_____________________________provide identity, privacy, and confidentiality to the network and is an abstraction of an architecture for permissioned operations.

Options:

A.

Certificate Services

B.

Membership Auditor

C.

Reputation Manager

D.

Certificate Manager

E.

Membership Services

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Blockchain Developer - Hyperledger Fabric | CBDH Questions Answers | CBDH Test Prep | BTA Certified Blockchain Developer - Hyperledger Fabric Questions PDF | CBDH Online Exam | CBDH Practice Test | CBDH PDF | CBDH Test Questions | CBDH Study Material | CBDH Exam Preparation | CBDH Valid Dumps | CBDH Real Questions | Blockchain Developer - Hyperledger Fabric CBDH Exam Questions

Exam Code: CBDH
Exam Name: BTA Certified Blockchain Developer - Hyperledger Fabric
Last Update: Apr 23, 2024
Questions: 195
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