Automation & Scripting Flashcards

Which Hyperledger project is designed for benchmarking blockchain performance with configurable workloads?

Answer: Hyperledger Caliper

Caliper runs scripted workloads against a network and reports throughput and latency.

Which test-network script command brings up the network, creates a channel and uses Fabric CAs?

Answer: ./network.sh up createChannel -ca

network.sh up createChannel -ca starts nodes, creates the channel and issues identities from CAs.

Which command removes the containers, volumes and generated artifacts of the Fabric test-network at the end of a CI job?

Answer: ./network.sh down

network.sh down tears down the network and cleans generated crypto material and artifacts.

Which Fabric endpoint, enabled through the operations service, is commonly used by scripts and orchestrators as a liveness check?

Answer: /healthz

The operations service exposes /healthz, returning the node's health status.

Which configtxlator step produces the delta needed to submit a channel config update?

Answer: compute_update

compute_update compares the original and modified configs and outputs the config update proto.

Which tool automates deploying Hyperledger Fabric networks onto Kubernetes using declarative configuration?

Answer: Hyperledger Bevel

Bevel provides automation, including Ansible and Helm, for deploying DLT networks on Kubernetes.

In a CI pipeline, what is the best practice for chaincode unit tests?

Answer: Run them against a mocked ChaincodeStub so no network is needed

Mocking the stub lets business logic be tested quickly and deterministically before integration tests.