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HFCP Sample Questions Answers

Questions 4

Which channel feature allows organizations to run different versions of Hyperledger Fabric on their peer nodes?

Options:

A.

Endorsement policies

B.

Channel capabilities

C.

Consensus protocols

D.

Anchor peers

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Questions 5

In Raft, there are two places for configuration. One is local configuration. What is the other?

Options:

A.

Global configuration

B.

Channel configuration

C.

Consensus configuration

D.

Peer configuration

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Questions 6

Which concept of the RAFT ordering service relates to the ingestion of new log entries; their replication to other ordering nodes; and managing when an entry is considered committed?

Options:

A.

Consenter set

B.

Endorsement

C.

Quorum

D.

Leader

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Questions 7

What is the only way to recover from a failed migration from Kafka to Raft?

Options:

A.

Retry the migration from Kafka to Raft.

B.

Restore the state from a backup.

C.

Revert to the previous version of Kafka.

D.

Rebuild the network from scratch.

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Questions 8

An endorsement policy lists what?

Options:

A.

The number of organizations involved in a transaction.

B.

The number of peers needed to endorse a transaction.

C.

The order in which transactions are executed.

D.

The identities required for endorsing a transaction.

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Questions 9

In Hyperledger Fabric, what is used if end users of the application want to keep their private key secret?

In Hyperledger Fabric, what is used if end users of the application want to keep their private key secret?

Options:

A.

Offline signing

B.

Online signing

C.

No signing is required

D.

Shared signing

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Questions 10

What is the advantage of using state-based endorsement policy over a chaincode or collection level endorsement policy?

Options:

A.

It provides a way to set endorsement policy on a global Hyperledger Fabric farm level with one configuration

B.

It can be used without complex configuration transactions, only a JSON configuration file is needed.

C.

It provides fine-tuned endorsement policy on key level, update is possible without chaincode update

D.

It provides a way to set endorsement policy for multiply keys with one chaincode configuration update.

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Questions 11

In Hyperledger Fabric, what data structures manage sensitive information between organizations?

Options:

A.

Private data collections

B.

State database

C.

Ordering service

D.

Endorsement policies

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Questions 12

How would a developer iteratively test and develop a smart contract without the overhead of the smart contract lifecycle process for every update?

Options:

A.

Runningchaincode for Smart Contracts in development mode.

B.

Manually update the Smart Contract code on the network.

C.

Deploy the Smart Contract on the network for every update.

D.

Use a Production Network to test and develop Smart Contracts.

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Questions 13

When deploying an Orderer environment, variables must be customized or overridden in which artifact?

Options:

A.

crypto-config.yaml

B.

docker-compose.yaml

C.

configtx.yaml

D.

orderer.yaml

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Questions 14

What are the standard possibilities to configure parameters of a component (peer, orderer) in Hyperledger Fabric?

Options:

A.

Local Linux config files and kubernetes configuration in etcd.

B.

Global configuration database for storing all relevant parameters.

C.

Yaml config files, environment variables, flags on CLI commands.

D.

Individual configuration database for each organization.

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Questions 15

Which actions are combined into a single function by the Fabric Gateway client APIs to support transaction submission with a single line of code?

Options:

A.

Validation and Commitment

B.

Endorsement, Submit, and Commitment

C.

Ordering and Commitment

D.

Endorsement and Commitment

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Questions 16

For an endorsed transaction, the gateway service forwards the transaction to the ordering service, which orders it with other endorsed transactions and then completes what?

Options:

A.

Sends the transaction to the validation phase.

B.

Packages all endorsed transactions into a block.

C.

Sends the transaction to the endorsement phase.

D.

Broadcasts the transaction to all peers in the channel.

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Questions 17

Which of the following is the identity solution in Hyperledger Fabric?

Options:

A.

Hyperledger Fabric Orderer

B.

Hyperledger Fabric CA

C.

Hyperledger Fabric SDK

D.

Membership Service Providers

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Questions 18

Which are the transaction steps that are managed by the Fabric gateway service?

Options:

A.

Finding a nonce for a pre-image of a hash function for mining.

B.

Collect transactions into a block and eliminating invalid transactions.

C.

Evaluate, endorse, submit, and get commit status.

D.

Realizing a distributed verifiable random function for leader election.

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Exam Code: HFCP
Exam Name: Hyperledger Fabric Certified Practitioner (HFCP) Exam
Last Update: Oct 4, 2024
Questions: 60
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