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Blockchain CBDH - BTA Certified Blockchain Developer – Hyperledger

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Page: 4 / 6
Total 195 questions

Ordering service nodes also provide the following services EXCEPT?

A.

Authentication of clients

B.

Maintenance of a system chain that defines ordering service configurations, root certs and MSP IDs for authenticated organizations and a grouping of profiles containing the various consortia within the network.

C.

Checks the Certificate details and others to validate the transaction.

D.

Filtering and validation for configuration transactions that reconfigure or create a channel.

Chaincode interface must be implemented by ever chaincode program.

A.

TRUE

B.

FALSE

Which ONE is valid?

A.

asset StockCettificate identified by ID{

B.

participant Stockholder extends StockCertificate{

C.

asset Bond Certificate extends StockCertificate {

D.

Bond Certificate extends StockCertificate {

Certification authority is responsible for:

A.

Issuing the certificates

B.

Revoking the certificate

C.

Validating the certificates

D.

All of the above

The pluggable world state database is:

A.

CouchDB or LevelDB

B.

MariaDB and file system

C.

Both A and B

D.

Neither A nor B

You would like to download Hyperledger Fabric.

What would be the command to start the process?

A.

ftp clone https://github.com/hyperledger/fabric.sh

B.

git clone https://github.com/hyperledger/fabric.git

C.

ftp clone https://github.com/hyperledger/fabric.git

Level DB is the default database for Hyperledger Fabric and is particularly appropriate when ledger states comprise what type of data?

A.

Complex key-value pairs

B.

Rich Queries

C.

JSON data pairs

D.

Simple key-value pairs

In Hyperledger Fabric. Public Key Infrastructure is used to generate cryptographic certificates which are not tied to:

A.

organizations

B.

network components and infrastructure

C.

end users

D.

Jbrowser

E.

components

What is the best definition of chaincode with Hyperledger?

A.

Chaincode is a decentralized transactional program, running one the validating nodes.

B.

Chaincode is centralized transactional program, running on the validating nodes.

C.

Chaincode is centralized transactional program, running on the peer nodes.

D.

Chaincode is a decentralized transactional program, running on the peer nodes.

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