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DA0-001 · Question #320

DA0-001 Question #320: Real Exam Question with Answer & Explanation

The correct answer is D: Transpose. {"question_number": 1, "question": "An analyst wants to combine two data sets into a single spreadsheet. Column names from the first spreadsheet are listed in rows in the second spreadsheet.", "correct_answer": "D. Transpose", "explanation": "Transpose converts rows into columns

Data Analysis

Question

An analyst wants to combine two data sets into a single spreadsheet. Column names from the first spreadsheet are listed in rows in the second spreadsheet. Which of the following is the first step the analyst should take to combine the data sets?

Options

  • ABlend
  • BMerge
  • CConcatenate
  • DTranspose

Explanation

{"question_number": 1, "question": "An analyst wants to combine two data sets into a single spreadsheet. Column names from the first spreadsheet are listed in rows in the second spreadsheet.", "correct_answer": "D. Transpose", "explanation": "Transpose converts rows into columns (or columns into rows). Because the second spreadsheet has the column names stored as row data, the analyst must first transpose that data so both spreadsheets share the same column-oriented structure. Only after the orientation is aligned can a merge, concatenation, or blend be performed correctly. The other options (Blend, Merge, Concatenate) are used to combine data, not to fix structural/orientation mismatches.", "generated_by": "claude-sonnet", "llm_judge_score": 4}

Topics

#Data preparation#Data wrangling#Transpose operation#Data restructuring

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