BTA Certified Blockchain Developer - Hyperledger (CBDH) Free Practice Test

Question 1

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

A. Enumerated types

B. Concepts

C. Non Enumerated types

D. Assets, participants, transactions, end events

E. Assets, orderers, transactions, and events

F. Collections

Correct Answer: A,B,D

Question 2

Hyperledger fabric business network is divided into which of the following categories?

A. Blockchain, Chaincode and Membership

B. Sawtooth, Fabric and Indy

C. Composer, Fabric and Chaincode

D. Blockchain, Registration, Identity

Correct Answer: A

Question 3

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?

A. It has a native cryptocurrency token

B. It is modular and extensible

C. It has a rich API development capacity

D. It allows for interoperability

Correct Answer: A

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Question 4

In Hyperledger Fabric each channel will manage its own _______ and ________? Select best answer.

A. Nodes, Peers, Chaincode

B. Chaincode, SQL

C. Ledgers, Logging

D. Ledgers, Chaincode and APIS

E. Ledgers, Chaincode

Correct Answer: E

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Question 5

Which of the following syntaxes will compile the chaincode?

A. go int

B. go compile

C. go build

D. go create

Correct Answer: C

Question 6

The CA (Certificate Authority) in Hyperledger Fabric issues the certificates. These certificates are used for identity validation and for transmission of encrypted data that only the owner (person, organization or software) of a specific certificate is able to decrypt and read.
What types of certificates are issued by the CA?

A. tcert

B. rootcert

C. ecert

Correct Answer: A,B,C

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Question 7

In Composer when declaring arguments are used to pass values. What argument value is NOT a value that is allowed?

A. integer

B. number

C. boolean

D. string

Correct Answer: A

Question 8

Which of the following would NOT be true about what a smart contract(Chaincode) gives your organization?

A. Legal Assurance

B. Trust

C. Savings

D. Autonomy

Correct Answer: A

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Question 9

In your model there is a need to determine who owns the asset What type of field would you add to the asset such that owner of the asset instance can be found

A. array

B. relationship

C. enumeration

Correct Answer: A

Question 10

Hyperledger Explorer is what type of web application? (Select two.)

A. A Nodejs based web app which runs on Node/Express

B. Uses MySQL as the backend database

C. A JS based web app which runs on Node/ExpressJS

D. Uses PostGres SQL as the backend database

Correct Answer: A,B

Question 11

Composer Modeling Language is an object-oriented modeling language that defines the domain model for a business network definition. Essentially this is saved as a .cto file.
Which of the following is NOT a characteristics of a .cto file?

A. The modeling language does not support multiple inheritance.

B. When using Hyperledger Composer modeling language structure words "asset" and "participant" are reserved.

C. It represents a set of resource definitions that includes assets, transactions, participants, ana events.

D. It is a single namespace in which all resource declarations are implicitly defined.

E. Values may not be assigned to any field variable.

Correct Answer: E

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Question 12

The Membership Services Provider provides identity, privacy, and confidentiality to the network and also by default issues two types of certificates.
What are the certificate types? (Select two.)

A. tcert

B. scert

C. Does not issue certificates by default

D. pcert

E. ecert

Correct Answer: A,E

Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).

Question 13

Which of the following is a role in Fabric that has permission to create transactions and query network data?

A. Chain Administrator

B. Chain Auditor

C. Chain Member

D. Chain Transactor

Correct Answer: D

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Blockchain BTA Certified Blockchain Developer - Hyperledger (CBDH) Free Practice Test