BC8

Which of the following is true about IBM Blockchain Platform?

• Needs all of the its components to be fully deployed in order to work

• Aims to be the blockchain software to use in all scenarios

• It is still early in the technology lifecycle to provide high availability

• Has an intuitive console to manage ledgers, channels, identities and other assets

Select which best describes IBM Blockchain Platform.

• Makes it easier for developers to start using blockchain technology

• Able to break up its components to be deployed in various environments

• Has tools for managing blockchain networks

• Uses cryptocurrency for transaction fees

What does a Public blockchain implementation means?

• No access restrictions

• Only private individuals can participate

• Uses a permissioned ledger

• Uses just the public key and not the private key

[True/False] In some Proof of Stake consensus implementation, it also depends on the amount of work that the miner does.

• True

• False

Select the key components of a blockchain ecosystem.

• Shared Ledger

• Consensus

• Web Client Application

• Docker Virtual Machine

Select the nodes present in Hyperledger Fabric

• Merkle node

• Peer node

• Orderer node

• Client node

• Mining node

What is typically stored in the chain of blocks of a blockchain system?

• World state

• Assets model

• Transaction logs

• All of the above

What kind of service does the ordering node renders?

• Smart contract execution

• Consensus service

• Gateway service

• All of the above

Select those statements that are true.

• Fabric can have unlimited channels

• Blockchain software need to be all open sourced

• IBM Blockchain Platform can be run anywhere - on-premise, private cloud, public cloud, hybrid cloud and multi-cloud.

• Fabric is used in the Stellar blockchain implementation

In the history of IBM Blockchain, _____________

• it was first showcased in Watson on Jeopardy!

• it was created together with Cloudant for the Hadron Collider project

• prototyping started in 2015

• Satoshi Nakamoto first tried to use it