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CBDH Blockchain BTA Certified Blockchain Developer – Hyperledger Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Blockchain CBDH BTA Certified Blockchain Developer – Hyperledger certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 195 questions

Based on the code snippet, the reference —> to Contract indicates:

A.

A pointer to a contract class

B.

A bidirectional resource

C.

Expedited delivery

D.

A unidirectional relationship

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

Hyperledger Fabric Consensus is planned out into 3 phases. (Select three.)

A.

Validation

B.

Scheduling

C.

Ordering

D.

Endorsement

E.

Processing

F.

Batching

Business Network Application Model is created in Composer using:

A.

Composer Javascript Model API

B.

Composer Runtimes

C.

Composer Modelling Language

Chaincode on Fabric can be developed using:

A.

GoLang

B.

Java

C.

Javasacrlpt (node)

D.

All of the above

Transaction Log Data is immutable i.e , once its written to the log it cannot be changed or deleted.

A.

TRUE

B.

FALSE

In Hyperledger Fabric Composer, what testing tools are available?

A.

Mocha

B.

Chai

C.

Both A and B

D.

Neither A nor B

The use of cryptographic hashing with blockchain provides for which of the following?

A.

Providing for flexibility in security design

B.

Providing for ease of analytical insight

C.

Ensuring data blocks are mutable

D.

Ensuring data blocks are immutable

Blockchain solutions are comprised of four building blocks. Which of the following answers list the building blocks?

A.

Shared ledger, Privacy, Trust, and Smart Contracts or (Chaincode)

B.

Shared ledger, Centralization, Trustless, and Smart Contracts or (Chaincode)

C.

Shared ledger, Privacy, Trustless, and Smart Contracts or (Chaincode)

D.

Shared ledger, Centralization, Trust, and Smart Contacts or (Chaincode)

Advantages of using Composer:

A.

Reduced lime to market

B.

Hides the complexity of the DLT technology

C.

Offers Domain/Business modelling capabilities

D.

All of the above

The chaincode’s interface implements which of the following functions?

A.

Invoke and Close

B.

Invoke and Revoke

C.

Open and Shut

D.

Open and Close

E.

Invoke and Init

Each channel manages its own_____and______

A.

Chamcode, Ledger

B.

Peers, Chamcode

C.

Ledger, Peers

Exhibit.

Based on the permissions .acl displayed, which rule allows the administrator access to the users resources.

A.

NetworkAdminUser

B.

Default

C.

NetworkAdminSystem

D.

SystemACL

The keyword is used if you do not want the resource to be instantiated while still used as a super type for the other resources of that type.

A.

extends

B.

noinstantiate

C.

concrete

D.

abstract

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

A.

Query

B.

List

C.

Invoke

D.

Init

E.

Write

F.

Delete

Exhibit.

Based on the code snippet displayed, if fn Is nil - what are the possibilities

A.

An error is generated

B.

Shira.Error(err.ErrorO) is returned

C.

get is assumed and processed

D.

None of the above

Hyperledger supports two types of transactions. What are the two types? (Select two.)

A.

Code Provisioning Transaction

B.

Code Provisioning Transaction

C.

Code Deploying Transaction

D.

Code Invoking Transaction

E.

Code Declaring Transaction

Which of the following syntaxes will compile the chaincode?

A.

go int

B.

go build

C.

go create

D.

go compile

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Total 195 questions
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