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Question 41

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Hyperledger Fabric Consensus is planned out into 3 phases. Which one is

NOT a phase?

Ordering
Ordering
Endorsement
Endorsement
Voting
Voting
Validation
Validation
Suggested answer: C
asked 16/09/2024
Ange YAO
38 questions

Question 42

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Hyperledger Fabric essentially implements a private validator network protocol.

Which of the following statements are true?

None of the entities in a network must register with membership services to obtain with access and transaction authority on the network.
None of the entities in a network must register with membership services to obtain with access and transaction authority on the network.
Selected entities in a network must register with membership services to obtain an identity with access and transaction authority on the network.
Selected entities in a network must register with membership services to obtain an identity with access and transaction authority on the network.
All the entities in a network must register with membership services to obtain an identity with access and transaction authority in the network.
All the entities in a network must register with membership services to obtain an identity with access and transaction authority in the network.
Selected entities in a network must register with Reputation Manager to obtain an identity with access and transaction authority on the network.
Selected entities in a network must register with Reputation Manager to obtain an identity with access and transaction authority on the network.
Suggested answer: C

Explanation:

Hyperledger is a private validator network protocol. All the entities in a network must register with membership services to obtain an identity with access and transaction authority on the network. Validators determine the level of permissions required to transact. The network setup also defines the network as permissive, allowing the ease of access. It supports for rapid and high adoption for a more controlled and restrictive environment.

asked 16/09/2024
Anu V
42 questions

Question 43

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Which of the following provides Immutability?

Assurance that a transaction cannot be altered
Assurance that a transaction cannot be altered
Network configuration cannot be changed
Network configuration cannot be changed
Guarantee that participants will never put bad information on the Blockchain
Guarantee that participants will never put bad information on the Blockchain
Network nodes will never fail
Network nodes will never fail
Suggested answer: B

Explanation:

Reference: https://www.ibm.com/blockchain/what-is-blockchain

asked 16/09/2024
Zdenek Kugler
32 questions

Question 44

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Blockchain services in Hyperledger Fabric manages the distributed ledger through a peer to peer protocol that is built on ______?

HTTP/2
HTTP/2
TLS and SSL
TLS and SSL
TLS
TLS
HTTP/1
HTTP/1
SSL
SSL
Suggested answer: A

Explanation:

Blockchain services manages the distributed ledger through a peer to peer protocol that is built on HTTP/2. The optimized data structure provides efficient schemes for maintaining the world state (the state of all transactions on the Blockchain) replicated at many participants.

asked 16/09/2024
Jelle Kamp
41 questions

Question 45

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Which of the following blockchain key components state how the transactions will be confirmed?

Consensus algorithm
Consensus algorithm
Shared Distributed Ledger
Shared Distributed Ledger
Encryption
Encryption
Validity Rules
Validity Rules
Suggested answer: D

Explanation:

Validity rules (validation) state how the user and the transactions will be validated. This is predetermined by the consensus algorithm.

asked 16/09/2024
Aneez vezhappilly
34 questions

Question 46

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What must implement every chaincode?

Golang
Golang
Chaincode Interface
Chaincode Interface
Java
Java
Linux APIs
Linux APIs
Suggested answer: B

Explanation:

Chaincode Interface is required and supports Go, Node.js or Java.

Reference: https://hyperledger-fabric.readthedocs.io/en/release-1.3/chaincode4ade.html#chaincode-api

asked 16/09/2024
Sjoerd Kruit
32 questions

Question 47

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Query is called whenever you query your chaincode's state. Queries do not result in blocks being added to the chain, and you cannot use certain functions.

Which function can you not use inside a Query?

Error
Error
Getstate
Getstate
Putstate
Putstate
Read
Read
Suggested answer: C

Explanation:

Reference: https://github.com/IBM-Blockchain-Archive/learn-chaincode

asked 16/09/2024
Dinuka Darshana
45 questions

Question 48

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_________is called to update or query the ledger in a proposal transaction. This is called by the chaincode.

Initialize
Initialize
Init
Init
Update
Update
Invoke
Invoke
Suggested answer: D

Explanation:

Invoke is called to update or query the ledger in a proposal transaction. Init is called during Instantiate transaction after the chaincode container has been established for the first time, allowing the chaincode to initialize its internal data. Invoke is called to update or query the ledger in a proposal transaction. Updated state variables are not committed to the ledger until the transaction is committed.

Reference: https://godoc.org/github.com/hyperledger/fabric/core/chaincode/shim#Chaincode

asked 16/09/2024
john rosselot
37 questions

Question 49

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What means "Forking" the Hyperledger Fabric Github repository? (Select two.)

Fork will fork the entire repository including all the branches.
Fork will fork the entire repository including all the branches.
Forking is not allowed in Github.
Forking is not allowed in Github.
Moving this repository to your GitHub account and removing contents from previous repository.
Moving this repository to your GitHub account and removing contents from previous repository.
Fork will fork the specific repository without all the branches.
Fork will fork the specific repository without all the branches.
Creating a copy of this repository under your GitHub account.
Creating a copy of this repository under your GitHub account.
Suggested answer: A, E

Explanation:

Forking" the repository means creating a copy of this repository under your GitHub account. Note that the fork will fork the entire repository including all the branches.

asked 16/09/2024
Ryan John Ricafranca
46 questions

Question 50

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

Invoke and Close
Invoke and Close
Invoke and Revoke
Invoke and Revoke
Open and Shut
Open and Shut
Open and Close
Open and Close
Invoke and Init
Invoke and Init
Suggested answer: E

Explanation:

Hyperledger supports the following two types of transactions. Code deploying transaction: A code deploying transaction submits, updates, or terminates a chaincode. Code invoking transaction: A code invoking transaction is an API call to a chaincode function.

asked 16/09/2024
Sergiu Anton
33 questions
Total 126 questions
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