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Welcome to the Requirements as the Driving Force for Data warehousing MCQs Page

Dive deep into the fascinating world of Requirements as the Driving Force for Data warehousing with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Requirements as the Driving Force for Data warehousing, a crucial aspect of Data Warehousing and OLAP. In this section, you will encounter a diverse range of MCQs that cover various aspects of Requirements as the Driving Force for Data warehousing, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Data Warehousing and OLAP.

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Requirements as the Driving Force for Data warehousing MCQs | Page 6 of 8

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Q51.
What determines the strengths in the areas of data loading, recovery, and restart in a DBMS?

a.

The frequency of data loads

b.

The number of users and complexity of queries

c.

The level of user experience

d.

The location of the data warehouse

Discuss
Answer: (a).The frequency of data loads Explanation:The data volumes and load frequencies determine the strengths in the areas of data loading, recovery, and restart in a DBMS.
Q52.
What factor will have a direct relation to how the selected DBMS supports scalability?

a.

The level of user experience

b.

The type of tool kit component

c.

The growth estimates in the number of users and complexity of queries

d.

The location of the data warehouse

Discuss
Answer: (c).The growth estimates in the number of users and complexity of queries Explanation:The growth estimates in the number of users and the complexity of queries will have a direct relation to how the selected DBMS supports scalability.
Q53.
What is the primary factor that impacts the type and size of the storage medium for a data warehouse?

a.

The location of the data warehouse

b.

The complexity of data transformations

c.

The frequency of data loads

d.

The answers to questions about storage size based on business requirements

Discuss
Answer: (d).The answers to questions about storage size based on business requirements Explanation:The type and size of the storage medium for a data warehouse are primarily impacted by the answers to questions about storage size based on business requirements.
Q54.
What should be estimated in the requirements definition phase to determine storage sizes for the data staging area?

a.

Business dimensions and metrics for all data marts

b.

Data structures for each business subject and data transformations

c.

The total storage size for the entire data warehouse

d.

The size of the multidimensional databases

Discuss
Answer: (b).Data structures for each business subject and data transformations Explanation:To determine storage sizes for the data staging area, you should estimate data structures for each business subject and consider data transformations.
Q55.
How should you estimate storage size for the overall corporate data warehouse?

a.

Estimate storage based on the business dimensions of the first data mart

b.

List the various attributes and estimate their field lengths for each business subject

c.

Calculate storage based on the number of users and their queries

d.

Estimate storage based on the type of OLAP planned for the data warehouse

Discuss
Answer: (b).List the various attributes and estimate their field lengths for each business subject Explanation:To estimate storage size for the overall corporate data warehouse, you should list the various attributes, estimate their field lengths, and calculate storage needed for each business subject.
Q56.
What should you use to estimate the storage size for multidimensional databases that support OLAP?

a.

Details of business dimensions and business measures

b.

The complexity of data transformations

c.

The type and size of the storage medium

d.

The location of the data warehouse

Discuss
Answer: (a).Details of business dimensions and business measures Explanation:To estimate storage size for multidimensional databases that support OLAP, you should use the details of business dimensions and business measures.
Q57.
In the requirements definition phase, what is the primary source of information for estimating storage sizes in a data warehouse?

a.

Data staging area specifications

b.

Vendor recommendations for storage medium

c.

Business requirements

d.

The number of interviews conducted with users

Discuss
Answer: (c).Business requirements Explanation:In the requirements definition phase, the primary source of information for estimating storage sizes in a data warehouse is business requirements.
Q58.
What do you need to calculate storage estimates for the data staging area of the corporate data warehouse?

a.

The frequency of data loads

b.

The answers to questions about storage size based on business requirements

c.

Business dimensions and metrics for all data marts

d.

The sizes of the source system data structures for each business subject

Discuss
Answer: (d).The sizes of the source system data structures for each business subject Explanation:To calculate storage estimates for the data staging area, you need the sizes of the source system data structures for each business subject.
Q59.
What is the primary reason for the existence of a data warehouse?

a.

To facilitate data transformation and mapping

b.

To serve as a repository for source system data

c.

To provide strategic information to users

d.

To store all available data for backup purposes

Discuss
Answer: (c).To provide strategic information to users Explanation:The primary reason for the existence of a data warehouse is to provide strategic information to users.
Q60.
How does the composition of the user community impact the information delivery strategy of a data warehouse?

a.

It has no impact on the information delivery strategy.

b.

It determines the choice of data warehouse architecture.

c.

It influences the types of analysis performed in the data warehouse.

d.

It affects the focus and features of the information delivery component.

Discuss
Answer: (d).It affects the focus and features of the information delivery component. Explanation:The composition of the user community can impact the focus and features of the information delivery component in a data warehouse.
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