Database / BetterDB Interview questions

What is the purpose of the BetterDB MCP server?

The @betterdb/mcp package exposes 60 tools over the Model Context Protocol so AI coding assistants like Claude Code or Cursor can query monitoring data – slowlogs, metrics, cluster state, client analytics – through natural-language tool calls instead of switching over to the web UI or hand-writing REST API calls.

It runs over stdio with npx @betterdb/mcp, and access is authenticated with a token you create under Settings → MCP Tokens in the monitor UI, so any MCP client you point at that token gets the same view an operator would get logging into the dashboard.

In practice, this means a developer debugging inside their editor can ask an agent something like "why did latency spike on this instance an hour ago" and have it pull slowlog and anomaly data directly, without a context switch to a browser tab.

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How many tools does the BetterDB MCP server expose? 600

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6

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60

✓ Correct! Well done.

16

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How do you authenticate the BetterDB MCP server? An SSH key pair

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Your Valkey password only

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A token created under Settings → MCP Tokens

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A Kubernetes service account

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What are the connection settings in BetterDB for Valkey? List the ways you can access data in BetterDB Monitor? How do you install BetterDB Monitor without Docker? What are the key browser features in BetterDB for Valkey? What is the purpose of BetterDB Monitor's Prometheus endpoint? What is the ENCRYPTION_KEY variable used for in BetterDB Monitor? What are the two Docker image variants for BetterDB Monitor? How do you run BetterDB Monitor with a single Docker command? Define COMMANDLOG support in BetterDB Monitor? What is the default port for the BetterDB Monitor dashboard? How can you optimize Prometheus scraping for a clustered BetterDB Monitor deployment? Describe the tech stack behind BetterDB Monitor? What is host.docker.internal used for with BetterDB Monitor? Which data types support full CRUD in BetterDB for Valkey? What is BetterDB Monitor? What is BetterDB for Valkey? What is the purpose of the BetterDB MCP server? What are the storage backends supported by BetterDB Monitor? What is the minimum Valkey version BetterDB Monitor supports? Why does BetterDB Monitor need PostgreSQL for production deployments?

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