Cyber Monday 2024! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location PL
Mob_nav_barsMENU

CompTIA Exam DA0-001 Topic 2 Question 27 Discussion

Actual exam question for CompTIA's DA0-001 exam
Question #: 27
Topic #: 2
[All DA0-001 Questions]

A database consists of one fact table that is composed of multiple dimensions. Each dimension is represented by a denormalized table. This structure is an example of a:

Show Suggested Answer Hide Answer
Suggested Answer: D

A star schema is a type of database schema that consists of one fact table and multiple dimension tables. The fact table contains the measures or metrics of the business process, such as sales, orders, or transactions. The dimension tables contain the attributes or characteristics of the business entities, such as products, customers, or locations. The fact table is connected to the dimension tables by foreign keys that reference the primary keys of the dimension tables.The fact table is located at the center of the schema, while the dimension tables are located at the edges, forming a star-like shape1.

A star schema is an example of a denormalized schema, which means that the dimension tables are not normalized and may contain redundant or repeated data. This is done to improve the performance and simplicity of queries, as there are fewer joins and tables involved.A star schema is suitable for data warehouses and business intelligence applications that require fast and efficient data retrieval2.


by Fletcher at Feb 13, 2024, 03:37 AM

Limited Time Offer

25%

Off

Get Premium DA0-001 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel
Nieves
7 months ago
I think it's A) non-relational schema because it doesn't follow the relational model.
upvoted 0 times
...
Renato
7 months ago
I'm leaning towards C) snowflake schema because it has normalized dimensions.
upvoted 0 times
...
Aretha
7 months ago
I disagree, I believe it is D) star schema.
upvoted 0 times
...
Dyan
7 months ago
I think the answer is B) galaxy schema.
upvoted 0 times
...
Martin
8 months ago
Definitely star schema. The other options like non-relational schema and snowflake schema don't quite fit the description provided.
upvoted 0 times
...
Jess
8 months ago
Yeah, the star schema is a type of dimensional modeling approach where you have a central fact table surrounded by dimension tables. This allows for efficient querying and analysis.
upvoted 0 times
...
Pauline
8 months ago
I agree, the star schema is the correct answer here. The fact table with multiple denormalized dimension tables is a classic star schema design.
upvoted 0 times
...
Leana
8 months ago
Hmm, this question seems like it's testing our knowledge of database design patterns. Based on the description, I think the answer is D) star schema.
upvoted 0 times
...

Save Cancel
az-700  pass4success  az-104  200-301  200-201  cissp  350-401  350-201  350-501  350-601  350-801  350-901  az-720  az-305  pl-300  

Warning: Cannot modify header information - headers already sent by (output started at /pass.php:70) in /pass.php on line 77