SF-Data-Arch Large Data Volume Considerations Practice Question
What is the primary function of a skinny table in Salesforce?
⚠ Common exam trap
Candidates often confuse skinny tables with indexes, assuming they are the same, whereas skinny tables specifically target the performance bottleneck of joining multiple tables together.
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
✓
To improve performance by avoiding table joins.
Skinny tables are used to optimize performance by flattening data from multiple related objects into a single table. This removes the need for joins when querying across related records, which significantly speeds up SOQL queries and reporting. They are a powerful tool for large-scale data environments where complex relationship traversal is the main bottleneck for query latency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To provide more storage for large objects.
Why it's wrong here
Skinny tables do not increase storage capacity; they are an architectural optimization for query speed. They consume additional storage, as they essentially store redundant data from the primary objects, so they are not a solution for organizations trying to overcome physical storage limitations or data volume caps.
- ✓
To improve performance by avoiding table joins.
Why this is correct
By denormalizing data into a single table, the database no longer needs to perform costly join operations during query execution. This drastically reduces the time required to retrieve large sets of data, providing a significant performance boost for reports and SOQL queries in high-volume environments.
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To automatically archive old records.
Why it's wrong here
Skinny tables have no archiving functionality. They are strictly for query optimization of the data currently present in the system. They do not move or delete records, so they cannot be used to help manage data volume or offload data from the active Salesforce production environment.
- ✗
To encrypt data for security compliance.
Why it's wrong here
Skinny tables are a performance feature, not a security feature. While they store data, they do not provide encryption at rest or any other security controls. Organizations requiring encryption should use Salesforce Shield, which provides robust security mechanisms independent of the underlying database table structure.
About these practice questions
This SF-Data-Arch question is part of Courseiva's 222-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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 Salesforce exam blueprint
This SF-Data-Arch practice question is part of Courseiva's free Salesforce 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 SF-Data-Arch exam.