Linux Foundation
HFCP
Q1:
Each peer in the Hyperledger Fabric network hosts a copy of the ledger, which also belongs to what component?
○
A
The membership services○
B
The Ordering node○
C
The NoSQL databases○
D
A member channel
Linux Foundation
HFCP
Q2:
What is the purpose of the ordering service in Hyperledger Fabric model?
○
A
To endorse transactions and update the world state.○
B
To manage the identities of the participants in the network○
C
To assemble transactions into blocks for the blockchain ledqer.○
D
To validate transactions and maintain the blockchain ledqer
Linux Foundation
HFCP
Q3:
What is the difference between chaincode, transaction, and block events?
○
A
Use setEvent, setTransactionEvent, setBlockEvent to emit chaincode, transaction and block events in the chaincode.○
B
Chaincode events must be programmed in the smart contract, transaction and block events work out of the box○
C
They are pretty much the same both regarding functionality and programming effort as well.○
D
Block events must be programmed in the smart contract, chaincode events work out of the box.
Linux Foundation
HFCP
Q4:
The peer and the orderer host an HTTP server that offers a RESTful operations API (Operations Service). Which of the following function is unprovided as an Operation Service API?
○
A
Get log data○
B
Get metrics○
C
Set log level○
D
Do health check
Linux Foundation
HFCP
Q5:
What Fabric Gateway client API call could a client application use to update ledger state?
○
A
Evaluate○
B
Invoke○
C
Update○
D
Submit