Blockchain Deployment and Monitoring Tools BDC Practice Questions (Page 9)

Questions 41–43

1. 41foundation · easy

   Which tool is specifically designed to compile and deploy smart contracts to Ethereum-compatible blockchains?

   • ADocker
   • BTruffle
   • CPrometheus
   • DKubernetes
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2. 42application · medium

   A team is using Prometheus and Grafana to monitor a Kubernetes-based blockchain network. They want to create a dashboard that shows the number of pending transactions in the mempool of each validator node. Which approach is the most appropriate?

   • AUse a block explorer API to fetch the mempool size for each node.
   • BUse the Kubernetes API to query the number of pods and infer mempool size from pod count.
   • CExpose a custom metric from the node client (e.g., geth) that reports mempool size, and scrape it with Prometheus.
   • DRun a script that logs into each node and runs 'eth_getBlockByNumber' to estimate mempool size.
   Reveal Solution Discussion Select an answer first
3. 43application · medium

   A financial institution runs a permissioned blockchain and must detect unusual transaction patterns that could indicate fraud or consensus manipulation. They have access to node logs and a Prometheus monitoring stack. Which monitoring approach best addresses this requirement?

   • AEnable verbose logging for all smart contract events and store logs for 90 days
   • BDeploy a block explorer to visualize all transactions in real time
   • CSet up alerts for a sudden spike in transaction volume or a high rate of failed transactions from a single identity
   • DMonitor only the block height and peer count to ensure the network is up
   Reveal Solution Discussion Select an answer first