DP-900 Practice Question: Identify considerations for relational data on Azure
This DP-900 practice question tests your understanding of identify considerations for relational data on azure. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A database designer wants to reduce data redundancy and improve data integrity by splitting a large table into multiple related tables based on functional dependencies. This process is known as:
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Normalization
Normalization is the process of organizing a relational database into multiple related tables to reduce data redundancy and improve data integrity by eliminating functional dependencies that cause anomalies. This is a core concept in relational database design, directly aligning with the scenario described in the question.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Denormalization
Why it's wrong here
Denormalization intentionally adds redundancy to improve read performance, the opposite of what is described.
✓
Normalization
Why this is correct
Normalization reduces redundancy by breaking tables into smaller, related tables based on dependencies.
Related concept
Read the scenario before looking for a memorised answer.
✗
Partitioning
Why it's wrong here
Partitioning splits tables for performance and manageability, not specifically to reduce redundancy.
✗
Indexing
Why it's wrong here
Indexing speeds up queries but does not affect redundancy or data integrity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse normalization with partitioning, because both involve splitting tables, but partitioning is a physical storage optimization, not a logical design technique for reducing redundancy.
Detailed technical explanation
How to think about this question
Normalization typically follows a series of normal forms (1NF, 2NF, 3NF, BCNF) that progressively eliminate redundancy by ensuring each non-key attribute depends on 'the key, the whole key, and nothing but the key.' For example, in a sales table with customer name and address, normalizing to 3NF would separate customer details into a Customers table, linked by a foreign key, preventing update anomalies when a customer changes address.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-900 question in full detail.
Identify considerations for relational data on Azure — This question tests Identify considerations for relational data on Azure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Normalization — Normalization is the process of organizing a relational database into multiple related tables to reduce data redundancy and improve data integrity by eliminating functional dependencies that cause anomalies. This is a core concept in relational database design, directly aligning with the scenario described in the question.
What should I do if I get this DP-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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