DA0-002 Data Acquisition and Preparation Practice Question
A data analyst is cleaning a dataset and finds that some cells in the 'email' column contain leading spaces. Which string function should be used to remove these spaces?
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
✓
TRIM
TRIM removes leading and trailing spaces from a string.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
TRIM
Why this is correct
TRIM removes both leading and trailing spaces.
- ✗
LTRIM
Why it's wrong here
LTRIM removes only leading spaces, but TRIM is more comprehensive.
- ✗
REPLACE
Why it's wrong here
REPLACE can replace spaces with empty string but is less efficient.
- ✗
SUBSTRING
Why it's wrong here
SUBSTRING extracts a portion, not for trimming.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA 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 DA0-002 exam.