A telecommunications company is designing a database for customer call records. They need to store billions of records and support complex queries for billing and fraud detection. The team is creating a data dictionary. What is the most important consideration for the data dictionary in this context?

Documenting the physical storage location of each table

Including partitioning and indexing strategies for each table

Listing all possible queries that will be run against the database

Defining each data element with its type, length, and business meaning

In database architecture design, what is the primary purpose of normalization?

To speed up all query performance

To increase the number of tables in the database

To reduce data redundancy and improve data integrity

A university is designing a database for course registrations. During requirement gathering, they discover that the 'student' entity has different attributes depending on whether the student is domestic or international. To ensure clarity for developers and avoid ambiguity, what should be included in the data dictionary?

A sample of actual student records to illustrate the data

Definitions for each data element, including data type, length, allowed values, and business rules

A list of all tables and their primary keys only

An ERD showing relationships between entities

Which document is the primary output of the requirement gathering process?

Requirements specification document

CompTIADataSys+

Domain 2Objective 1

Planning and Design DS0-001 Practice Questions (Page 3)

Part of the Database deployment domain, which accounts for 16% of the DS0-001 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–10 in this domain), expect 2–3 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

5concepts

16%of the exam

Questions 11–15

11expert · hard
A telecommunications company is designing a database for customer call records. They need to store billions of records and support complex queries for billing and fraud detection. The team is creating a data dictionary. What is the most important consideration for the data dictionary in this context?
Select an answer first
12foundation · easy
Which architectural consideration is most important when designing a database for a system expected to grow significantly in data volume over time?
Select an answer first
13foundation · easy
In database architecture design, what is the primary purpose of normalization?
Select an answer first
14application · medium
A university is designing a database for course registrations. During requirement gathering, they discover that the 'student' entity has different attributes depending on whether the student is domestic or international. To ensure clarity for developers and avoid ambiguity, what should be included in the data dictionary?
Select an answer first
15foundation · easy
Which document is the primary output of the requirement gathering process?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to DS0-001

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by CompTIA. “DS0-001” is a trademark of its owner, used for identification only.

Planning and Design DS0-001 Practice Questions (Page 3)

Questions 11–15

Which architectural consideration is most important when designing a database for a system expected to grow significantly in data volume over time?

In database architecture design, what is the primary purpose of normalization?

Which document is the primary output of the requirement gathering process?

Keep studying — Database deployment