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Crucial Exams

CompTIA Data+ DA0-002 (V2) Practice Question

A business-intelligence dashboard that connects to the company's SQL Server through an ODBC data source failed to refresh overnight. The error captured in the BI tool reads:

"Connection failed: SQLSTATE 08001 - A network-related or instance-specific error occurred while establishing a connection to SQL Server."

The DBA confirms the SQL Server service is running and can log in locally with SQL Server Management Studio. No credentials, drivers, or firewall rules have been changed since yesterday's successful load. From your analyst workstation on the same network segment as the BI gateway, what is the MOST appropriate first troubleshooting step to narrow down the cause of the failure?

  • Use a network utility such as PortQry, Test-NetConnection, or Telnet to check whether TCP port 1433 on the SQL Server host is reachable from the analyst's workstation.

  • Enable verbose query logging in the BI tool and re-run the refresh to capture detailed trace files.

  • Post the complete error message to the vendor's community forum and wait for suggested fixes.

  • Rebuild the clustered indexes on the main fact tables to eliminate possible physical corruption.

CompTIA Data+ DA0-002 (V2)
Data Analysis
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