Lesson 2 Quiz

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Welcome students pls answer these questions so i can confirm your uderstanding.

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Theoneandonly Grayjoy

United Kingdom

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Lesson 2 Quiz


Lesson 2 QuizVersion en ligne Welcome students pls answer these questions so i can confirm your uderstanding. par Theoneandonly Grayjoy 1 What is the primary use of the Star Schema in databases? a Data warehousing and business intelligence applications b Online Transaction Processing (OLTP) c E-commerce databases d Web interface design 2 What does the fact table in a Star Schema typically contain? a Descriptive data like customer names b Quantitative data such as sales or revenue c Data about product features d Complex data joins 3 Which type of database operation is most commonly associated with the Star Schema? a Online Transaction Processing (OLTP) b Online Analytical Processing (OLAP) c Transactional database updates d Local branch database operations 4 What is the relationship between a fact table and dimension tables in the Star Schema? a The fact table contains references to the dimension tables through foreign keys b The dimension tables contain references to the fact table through primary keys c There is no relationship between the fact table and dimension tables d The fact table is always linked to multiple dimension tables via a complex join 5 What kind of data is typically stored in dimension tables? a Financial metrics like revenue and expenses b Descriptive data like product names, dates, or customer details c Sales data and transactions d Complex queries and business intelligence reports 6 How is data organised in the Star Schema? a Data is stored in a flat table with no connections b Data is organised in a central fact table with surrounding dimension tables c Data is distributed across multiple unrelated tables d Data is stored in a tree-like structure 7 What does the term "denormalised" mean in the context of dimension tables in the Star Schema? a The data is stored with minimal redundancy to save space b The data contains redundant information to improve query performance c The data is highly normalised to reduce storage requirements d The data is encrypted for security purposes 8 Which of the following operations is typically associated with Online Transaction Processing (OLTP)? a Analysing sales trends over time b Generating business intelligence reports c Answering queries from a web interface or cash register sales d Forecasting market demand 9 What is a characteristic feature of the structure of the Star Schema? a It resembles a tree with multiple levels of complexity b It has a simple structure resembling a star, with a fact table at the centre c It uses a complex hierarchical structure with many nested tables d It has a circular structure with no central table 10 In a Star Schema, what is typically copied to a central data warehouse for OLAP analysis? a Transactional data from external websites b Operational reports from OLTP systems c User login information d Local store databases from store branches

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Lesson 2 Quiz

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À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Lesson 2 QuizVersion en ligne

par Theoneandonly Grayjoy

What is the primary use of the Star Schema in databases?

What does the fact table in a Star Schema typically contain?

Which type of database operation is most commonly associated with the Star Schema?

What is the relationship between a fact table and dimension tables in the Star Schema?

What kind of data is typically stored in dimension tables?

How is data organised in the Star Schema?

What does the term "denormalised" mean in the context of dimension tables in the Star Schema?

Which of the following operations is typically associated with Online Transaction Processing (OLTP)?

What is a characteristic feature of the structure of the Star Schema?

In a Star Schema, what is typically copied to a central data warehouse for OLAP analysis?