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Welcome to the Data Warehousing and the Web MCQs Page

Dive deep into the fascinating world of Data Warehousing and the Web with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Warehousing and the Web, a crucial aspect of Data Warehousing and OLAP. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Warehousing and the Web, 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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Check out the MCQs below to embark on an enriching journey through Data Warehousing and the Web. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Data Warehousing and OLAP.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Data Warehousing and the Web. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Warehousing and the Web MCQs | Page 5 of 13

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Q41.
What is the principal means of communication in a Web-enabled data warehouse environment?

a.

XML documents

b.

HTML files

c.

SQL queries

d.

JavaScript code

Discuss
Answer: (b).HTML files Explanation:The principal means of communication in a Web-enabled data warehouse environment is the standard HTML document or file, also known as the Web page.
Q42.
How can HTML files be generated in a Web-enabled data warehouse?

a.

Manually inputting data

b.

Using triggers

c.

Using complex algorithms

d.

Running batch processes

Discuss
Answer: (b).Using triggers Explanation:HTML files can be generated in a Web-enabled data warehouse using triggers, which are special kinds of stored procedures automatically executed in response to specific data manipulation statements.
Q43.
What is a trigger in the context of a Web-enabled data warehouse?

a.

A graphical user interface

b.

A database engine

c.

A stored procedure automatically executed in response to specific data manipulation statements

d.

An HTML file generator

Discuss
Answer: (c).A stored procedure automatically executed in response to specific data manipulation statements Explanation:In the context of a Web-enabled data warehouse, a trigger is a stored procedure automatically executed in response to specific data manipulation statements.
Q44.
How can triggers be used in a Web-enabled data warehouse to generate HTML files?

a.

By blocking data access

b.

By refreshing the database

c.

By executing complex algorithms

d.

By automatically generating HTML files when predefined conditions are met

Discuss
Answer: (d).By automatically generating HTML files when predefined conditions are met Explanation:Triggers in a Web-enabled data warehouse can be used to automatically generate HTML files when predefined conditions are met, such as exceeding threshold values.
Q45.
What is the limitation of the subscription facility in database management systems?

a.

It is limited to data outside the database.

b.

It is limited to HTML pages.

c.

It is limited to the data within the particular database.

d.

It is limited to stored procedures.

Discuss
Answer: (c).It is limited to the data within the particular database. Explanation:The subscription facility in database management systems is limited to the data within the particular database.
Q46.
What possibilities does reporting offer as a strategic tool in a Web-enabled data warehouse?

a.

Integration of business partners into the supply chain

b.

Limited access to routine reports

c.

Sending reports manually to specific customers

d.

Setting thresholds on inventory levels only

Discuss
Answer: (a).Integration of business partners into the supply chain Explanation:Reporting as a strategic tool in a Web-enabled data warehouse opens up possibilities for integrating business partners into the supply chain, directing reports to specific customers and suppliers, and setting thresholds on inventory levels.
Q47.
What technique allows a user to request a first report at high summary levels and proceed further with the analysis?

a.

OLAP drill down

b.

Hyperlink navigation

c.

Exception reporting

d.

Predefined reports

Discuss
Answer: (a).OLAP drill down Explanation:OLAP drill down allows a user to request a first report at high summary levels and proceed further with the analysis without creating a new report.
Q48.
What is a benefit of a browser-based application in a Web-enabled data warehouse environment?

a.

Higher cost for deployment

b.

Need for client configuration and installation

c.

Free user interface (browser) on the client

d.

Limited access to desktops

Discuss
Answer: (c).Free user interface (browser) on the client Explanation:A benefit of a browser-based application in a Web-enabled data warehouse environment is the practically free user interface (browser) on the client, with no need for configuration and installation.
Q49.
What are the commonly used technologies to build Web-enabled user interfaces?

a.

HTML, JavaScript, XML, SQL

b.

Java, C++, ADO, XML

c.

HTML, Java, ADO, plug-ins

d.

SQL, Python, Ruby, PHP

Discuss
Answer: (c).HTML, Java, ADO, plug-ins Explanation:The commonly used technologies to build Web-enabled user interfaces are HTML, Java, ADO, and plug-ins.
Q50.
What is a common client software in a Web-enabled data warehouse environment?

a.

Database engine

b.

HTML files

c.

Web browser

d.

Plug-ins

Discuss
Answer: (c).Web browser Explanation:A common client software in a Web-enabled data warehouse environment is a web browser.
Page 5 of 13

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