You are provided two data sources which both contain event IDs and the date/time that the events occurred. Which node will merge these two data sources?

Question

Options

• AAppend node
• BFilter node
• CAggregate node
• DSort node

• A
  91% (41)
• B
  4% (2)
• C
  2% (1)
• D
  2% (1)

Explanation

Append combines two data sources with matching schemas by stacking them into a single dataset, making it the right tool when you want to merge event records from two separate sources into one unified list.

Why the distractors are wrong:

• Filter (B) removes rows based on conditions - it narrows data, not combines it.
• Aggregate (C) summarizes or groups data (e.g., counts, sums) - it transforms existing data, not merges two sources.
• Sort (D) reorders rows by a field - it changes sequence, not structure or source count.

Memory tip: Think of "Append" like appending text to a document - you're adding more lines to the bottom. When you have two tables with the same columns (like event ID + datetime) and want them as one, you append one onto the other.

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