Alteryx-Core Data Transformation Practice Question
Exhibit
Config: Tool 'Formula', Field 'Date', Expression 'DateTimeAdd([Date], 1, 'days')'
Refer to the exhibit. What is the result of this expression?
⚠ Common exam trap
Candidates often get confused by the interval syntax, mistakenly thinking the tool might subtract or modify the time unit instead of the date value. They overthink the complexity of simple date arithmetic.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It advances the date by one day.
The DateTimeAdd function takes a date field, a numeric interval, and a time unit to perform calculations. By adding '1' and 'days', the expression advances the date by exactly one day. This is a standard approach for calculating delivery dates, expiration windows, or lag metrics in time-series data without needing to manually account for month or year rollovers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It adds a literal string '1 days' to the date.
Why it's wrong here
The function structure requires a numeric value for the interval and a specific string for the unit. It does not treat the whole argument as a literal string. Providing the wrong syntax would cause the tool to throw a syntax error rather than adding a literal string.
- ✓
It advances the date by one day.
Why this is correct
The DateTimeAdd function accurately processes date math. By setting the interval to 1 and the unit to 'days', the function correctly increments the input date by 24 hours, handling month and year transitions automatically, which is the expected behavior for this specific Alteryx function.
- ✗
It converts the date to a string and appends '1 days'.
Why it's wrong here
This function operates on date objects and returns a date or datetime object, not a string. Appending text would be a concatenation operation, which is not what this function is designed to do. It preserves the underlying datetime format for proper downstream usage in date-related tools.
- ✗
It causes a runtime error due to incorrect function syntax.
Why it's wrong here
The syntax is entirely correct according to the Alteryx formula engine guidelines. The function name, parameters, and separators are all valid. Therefore, the formula will execute correctly without raising a runtime error, making this an invalid choice for describing the outcome of the provided configuration.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Alteryx exam blueprint
This Alteryx-Core practice question is part of Courseiva's free Alteryx certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the Alteryx-Core exam.