Database Planning And Deployment →easyMultiple ChoiceObjective-mapped

DS0-001 Database Planning And Deployment Practice Question

A database administrator is planning to normalize a flat-file database containing customer orders. The administrator identifies that customer contact information is repeated for every order record. Which normalization form should the administrator implement to move this contact information to a separate table?

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

✓

Second Normal Form (2NF)

Moving repeating groups or redundant data into separate tables to eliminate partial dependencies is the goal of Second Normal Form (2NF).

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
First Normal Form (1NF)
Why it's wrong here
1NF focuses on atomicity and removing repeating groups.
✓
Second Normal Form (2NF)
Why this is correct
2NF removes partial functional dependencies by separating data into distinct tables.
✗
Boyce-Codd Normal Form (BCNF)
Why it's wrong here
BCNF addresses more complex redundancy issues involving overlapping candidate keys.
✗
Third Normal Form (3NF)
Why it's wrong here
3NF addresses transitive dependencies.

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Written and reviewed by Johnson Ajibi, MSc IT Security

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Last reviewed August 2026 · checked against the official CompTIA exam blueprint

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