DA0-002 Data Concepts and Environments Practice Question
In a customer database, each row represents a customer with columns: CustomerID, Name, Address, Phone. What does the column "Name" represent?
⚠ Common exam trap
Candidates often confuse 'attribute' with 'record' because they think of a row as containing all attributes, but the question specifically asks what a single column represents, not the row itself.
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
✓
Attribute
In the context of a relational database, a column represents an attribute of an entity. The 'Name' column stores a specific characteristic (the customer's name) for each row, making it an attribute. This aligns with the data modeling concept where attributes define the properties of an entity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Instance
Why it's wrong here
Incorrect. An instance is a specific customer row.
- ✗
Entity
Why it's wrong here
Incorrect. Entity is the customer, not the column.
- ✓
Attribute
Why this is correct
Correct. Name is an attribute of the customer entity.
- ✗
Record
Why it's wrong here
Incorrect. A record is the entire row.
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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.