Jun-2024 New Version HFCP Certificate & Helpful Exam Dumps is Online [Q28-Q48]

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Jun-2024 New Version HFCP Certificate & Helpful Exam Dumps is Online

HFCP Free Certification Exam Material with 62 Q&As

QUESTION 28
When creating a gRPC connection to the Gateway peer using Transport Layer Security (TLS), what information must be supplied by the client application?

The Gateway peer host name, service port number, and a TLS host name override.

A common connection profile that includes the Gateway peer address and TLS certificate.

The endpoint address of the Gateway peer and the certificate of the TLS certificate authority.

The client private key and the public key of the TLS certificate authority.

QUESTION 29
When executing queries on the ledger, what is the difference between simple and composite keys?

Simple keys and composite keys are not used when executing queries on the ledger.

Simple keys allow for more complex queries than composite keys.

Composite keys allow for more complex queries than simple keys.

Simple Keys and composite Keys function the same way when executing queries on the ledger

QUESTION 30
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?

Offline signing

Online signing

No signing is required

Shared signing

QUESTION 31
In Hyperledger Fabric, what data structures manage sensitive information between organizations?

Private data collections

State database

Ordering service

Endorsement policies

QUESTION 32
When using “off-line signing” in the Fabric Gateway client API, what information from each message is used to generate the cryptographic signature?

The message digest

The client X.509 certificate

The transaction validation code

The transaction ID

QUESTION 33
What is the difference between chaincode, transaction, and block events?

Use setEvent, setTransactionEvent, setBlockEvent to emit chaincode, transaction and block events in the chaincode.

Chaincode events must be programmed in the smart contract, transaction and block events work out of the box

They are pretty much the same both regarding functionality and programming effort as well.

Block events must be programmed in the smart contract, chaincode events work out of the box.

QUESTION 34
What types of events committed to the ledger can client applications receive using the peer’s event service?

Only block events

Both chaincode and block events

Neither chaincode nor block events

Only chaincode events

QUESTION 35
What is necessary for a chaincode to become ready to commit on a channel?

The chaincode must be previously installed on the channel’s peers.

The policy Channel/Application/Writers must be satisfied.

The policy /Channel/Application/LifecycleEndorsement must be satisfied.

The chaincode must have the endorsement policies correctly defined.

QUESTION 36
What Fabric Gateway client API call could a client application use to update ledger state?

Evaluate

Invoke

Update

Submit

QUESTION 37
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?

Get log data

Get metrics

Set log level

Do health check

QUESTION 38
What is the advantage of using state-based endorsement policy over a chaincode or collection level endorsement policy?

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

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

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

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

QUESTION 39
Which are the transaction steps that are managed by the Fabric gateway service?

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

Collect transactions into a block and eliminating invalid transactions.

Evaluate, endorse, submit, and get commit status.

Realizing a distributed verifiable random function for leader election.

QUESTION 40
Which arguments must be supplied when a client application uses the Fabric Gateway client API to create a Gateway connection to a Fabric network?

connection and client identity

Connection profile and client private key

Client public key and signing implementation

Client X.509 certificate and private key

QUESTION 41
What allows users to update channels, or invoke new Smart Contracts?

CouchDB

Private data collections

The peer CLI

Endorsement policies

QUESTION 42
An enterprise blockchain is a permission blockchain node distributed to whom?

Administration data center

Nodes distributed with a validator

Member organizations

Nodes distributed on a public Blockchain

QUESTION 43
Each peer in the Hyperledger Fabric network hosts a copy of the ledger, which also belongs to what component?

The membership services

The Ordering node

The NoSQL databases

A member channel

QUESTION 44
How can the client application access descriptive error text for each of the endorsing peers following a transaction endorsement failure?

Extract relevant entries from the endorsing peer logs.

Examine the message of the associated cause or wrapped error.

Look up the gRPC status code for the error.

Extract the details associated with the returned error.

QUESTION 45
Which directory is created by the idemixgen tool along with the ca directory and msp directory when configuring membership?

config directory

user directory

orderer directory

tlscacerts directory

QUESTION 46
What happens if the user submits a transaction with no matching function?

The peer will have rejected the transaction.

Nothing, the transaction is ignored.

The first transaction function is called.

The unknownTransaction function is called.

QUESTION 47
When deploying an Orderer environment, variables must be customized or overridden in which artifact?

crypto-config.yaml

docker-compose.yaml

configtx.yaml

orderer.yaml

QUESTION 48
When reading and modifying the ledger state in Hyperledger Fabric, what type of schema does the data stored in the ledger need to adhere if the state database is LevelDB?

No specific schema is required

JSON schema

XML schema

CSV schema