Question 65
CCA-F is a newly released exam. These practice questions reflect our best current understanding — the exact wording and question formats may change in the live exam until the certification matures. Use them to learn the concepts, not to memorize.
Scenario: Agent Architecture and Orchestration - Several MCP tools return dates in different formats: `lookup_order` returns a Unix timestamp, `get_shipment` returns "Mar 5, 2025", and `get_invoice` returns ISO 8601. The agent frequently miscompares dates across these tools. Which mechanism best normalizes the data before the model sees it?
- AA `PostToolUse` hook that converts every tool result's date fields into a single canonical format (ISO 8601).
- BA system-prompt instruction telling the model to mentally convert all dates to ISO 8601 before comparing.
- CA `tool_choice` setting that forces the model to call only one date-returning tool.
- DAsk each MCP server's vendor to change their output format.