Automation & Scripting Flashcards

Which fabric-ca-client command obtains a signed enrollment certificate for an already registered identity?

Answer: fabric-ca-client enroll -u https://:@:

enroll authenticates with the enrollment ID and secret and returns a signed certificate and key material.

What is the difference between registering and enrolling an identity with Fabric CA?

Answer: Registering creates the identity record and secret; enrolling issues the certificate

A registrar registers an identity, and that identity later enrolls using its secret to receive a certificate.

In the Fabric Gateway client API, which call sends a transaction to be endorsed, ordered and committed?

Answer: submitTransaction

submitTransaction runs the full endorse-order-commit flow, while evaluateTransaction only queries a peer.

Which Gateway call is best for a read-only query that must not create a ledger transaction?

Answer: evaluateTransaction

evaluateTransaction executes on a peer and returns the result without ordering anything.

In the Node.js @hyperledger/fabric-gateway package, how does the client supply the identity's signing capability?

Answer: By passing a signer function (for example from a private key) when connecting

The newer Gateway client takes an identity and a signer implementation, keeping key handling in the application.

A script needs to renew an expiring enrollment certificate without using the identity's secret. Which Fabric CA client command fits?

Answer: fabric-ca-client reenroll

reenroll uses the existing valid certificate to authenticate and obtain a new one.

Which part of the Gateway flow lets an application wait to learn whether a submitted transaction was committed as valid?

Answer: Checking the commit status of the transaction

The Gateway returns a commit object whose status reports validity once the block is committed.