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Blockchain CBDH - BTA Certified Blockchain Developer – Hyperledger

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Total 195 questions

There is_________________when a transaction is validated and committed to the ledger:

A.

Immutability

B.

Transparancy

C.

Confidentiality

D.

Privacy

Chaincode Services uses Docker to host (deploy) the chaincode without relying on any virtual machine or computer language.

What would be the main reason or best reason that Hyperledger chose containers over virtual machines?

A.

Docker provides a secured, lightweight method to sandbox chaincode execution that is “locked down”.

B.

Docker provides a secured, lightweight method to sandbox chaincode execution that is “locked down” but additional programming languages cannot be enabled

C.

Docker provides a secured, lightweight method to sandbox chaincode execution that is not “locked down”

D.

Docker is fully compatible with Hyperledger and Linux with an upgrade subscription.

Exhibit.

The lowercase "o" in the code snippet indicates:

A.

An attribute of the asset

B.

A relationship to the asset

C.

Both A and B

D.

Neither A nor B

Which function is not required in Hyperledger Fabric chaincode?

A.

Start

B.

nit N

C.

Invoke

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

A.

string

B.

integer

C.

number

D.

boolean

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

A.

Validation

B.

Scheduling

C.

Ordering

D.

Endorsement

E.

Processing

F.

Batching

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

A.

Permissioned

B.

Confidential Transaction

C.

No Cryptocurrency

D.

Programmable

E.

All of the above

Hyperledger Composer has the following two main components.

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

Exhibit.

The function displayed is called

A.

On the instantiation of the chaincode

B.

On the 3rd call to the chaincode

C.

On every invocation of the chaincode

D.

On the teardown of the chaincode

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