Question 1

Which of the following stores the database on a service provider's server and allows the client to access the database over a network?

Accepted Answer

Database as a service (DBaaS) is a cloud computing service model where a service provider hosts the database on their server and allows the client to access it over a network. This model offers the benefits of scalability, flexibility, and reduced maintenance costs. Options A, C, and D do not specifically relate to the concept of storing a database on a service provider's server.

Question 2

A DBMS provides one of many points of management and control over data resources.

Accepted Answer

The answer of A DBMS provides one of many points...

Question 3

During payroll processing, the system crashed and the operator concluded that the payroll system had integrity issues.Who will be called first to fix the problem?

Accepted Answer

The payroll system crashing indicates that there may be a problem with the database or the connection between the software and the database. Therefore, the database administrator is the best choice to fix the problem. They are responsible for managing and maintaining the database, ensuring its reliability and security, and addressing any issues that may arise.

Question 4

What is the term for the steps an organization takes to protect information sought by unauthorized parties?

Accepted Answer

The answer of What is the term for the steps...

Question 5

Who is responsible for planning, designing, creating, operating, securing, monitoring, and maintaining databases?

Accepted Answer

Database administrators are responsible for all aspects of managing and maintaining a database, including planning, designing, creating, operating, securing, monitoring, and maintaining it. Data owners may have responsibility for certain aspects of the data within the database, but not for the technical management of the database itself. Data analysts and database power users may work with databases extensively, but their role is generally focused on using the data, rather than managing the database itself.

Question 6

What is the primary consideration when selecting a database management system for an organization?

Accepted Answer

The primary consideration when selecting a database management system should be the information needs of the organization. The system should be able to handle the specific data requirements of the organization and provide efficient storage, retrieval, and analysis of the data. Factors such as maintenance, vendor awards, and support staff availability should also be considered but should not be the primary consideration.

Question 7

Which of the following employs multidimensional databases to efficiently store and deliver data warehouse information?

Accepted Answer

Online analytical processing (OLAP) employs multidimensional databases to efficiently store and deliver data warehouse information. OLAP allows users to analyze large volumes of data from multiple perspectives quickly.

Question 8

What application of data mining identifies the products and services most commonly purchased at the same time?

Accepted Answer

Market basket analysis is the application of data mining that identifies the products and services most commonly purchased at the same time. This allows businesses to better understand customer behavior and preferences, and can be used to inform pricing, product placement, and promotions.

Question 9

In what type of database can data be spread across several smaller databases connected through telecommunications devices?

Accepted Answer

In a distributed database, data is spread across several smaller databases connected through telecommunications devices. This allows for better scalability and improved data availability. Data mart is a smaller subset of a larger data warehouse focused on a specific area of business. Replicated databases have copies of the same data in multiple locations, but they are not necessarily connected through telecommunications devices. Data synchronizer is not a type of database.

Question 10

The senior executives of a multinational company just received the quarterly financial report of their company broken down by country; each country was broken down further by region.The data collected was aggregated and presented in an efficient manner.What type of tool was used to generate this report?

Accepted Answer

The report was broken down by country and region, which suggests that it involved analyzing and manipulating large volumes of data. Online analytical processing (OLAP) is a tool used to analyze multidimensional data from multiple sources, which would be suitable for generating such a report. Data mining involves discovering patterns and relationships in data that may not be immediately obvious, object-oriented data analysis is a method of software design, and virtual analytical methods are not a recognized tool or process.

Question 11

Which of the following contains a subset of data for a single aspect of a company's business and is used by smaller groups who want to access detailed data for business analysis?

Accepted Answer

A data mart contains a subset of data for a single aspect of a company's business and is used by smaller groups who want to access detailed data for business analysis.

Question 12

Which of the following terms refers to the manipulation of data to gain increasing levels of detail about business conditions?

Accepted Answer

The term "drill down" refers to the process of manipulating data to gain more detailed information about business conditions. It involves delving deeper into the data to uncover underlying trends and insights. Aggregation refers to the process of combining data into a single summary statistic, such as an average or total. Slicing refers to the process of filtering data based on specific criteria or dimensions. Extraction refers to the process of collecting data from multiple sources and consolidating it into a single dataset.

Question 13

An attribute is a general class of people, places, or things for which data is collected, stored, and maintained.

Accepted Answer

An attribute refers to a property or characteristic of an object or entity. It is a specific detail about a person, place, thing, or idea for which data can be collected and stored.

Question 14

What type of database systems have companies such as IBM developed to allow different databases to work together as a unified system?

Accepted Answer

IBM has developed virtual database systems that allow different databases to work together as a unified system. These systems enable organizations to combine data from different sources into a single virtual view, without requiring data to be physically moved or replicated. This approach can help companies reduce data integration costs and complexity, while improving the speed and flexibility of their data access and analysis capabilities.

Question 15

A database provides an essential foundation for an organization's information and decision support systems.

Accepted Answer

A database serves as a centralized location for storing and organizing data, making it easier for organizations to access and analyze information. This data can then be used to support decision-making processes and improve overall operations.

Question 16

What information-analysis tool involves the automated discovery of patterns and relationships in a data warehouse?

Accepted Answer

Data mining is a technique used to analyze large sets of data in order to discover patterns and relationships. It involves the use of sophisticated algorithms and statistical methods to identify insights and knowledge from data stored in a data warehouse.

Question 17

Which of the following typically stores three to ten years of historical summary data records from many operational systems and external data sources so that it can be used for business analysis?

Accepted Answer

A data warehouse is a specialized database used for business analysis that stores historical summary data from various sources, allowing for complex querying and analysis to inform decision-making. Data warehouses typically retain data for several years, making it a valuable tool for long-term trend analysis and forecasting.

Question 18

Who is responsible for defining and implementing consistent principles for setting data standards and data definitions that apply across all the databases in an organization?

Accepted Answer

Data administrators are responsible for defining and implementing data standards and definitions across an organization.

Question 19

What is the name given to a system used to analyze financial and operating data?

Accepted Answer

The name given to a system used to analyze financial and operating data is business intelligence. Data mining (A) refers to the process of using advanced statistical analysis methods to discover patterns and relationships within data, while data modelling (B) involves creating a visual representation of data and its relationships. Business database systems (D) refer to the software systems used to manage and store organizational data, but not necessarily to analyze it.

Question 20

Which of the following processes uses a database to store and access data according to the locations it describes, and permits related queries and analysis?

Accepted Answer

Spatial data technology is the process that uses a database to store and access data according to the locations it describes. It permits related queries and analysis, making it suitable for geographical data, maps, and GPS-related data. Data mining is the process of finding patterns from data, while data modelling is the process of creating a model representation of the data. Relational data extract involves extracting data from a relational database. None of these processes are specifically designed for location-based data, making D the correct option.

Quiz 5: Database Systems, Data Centres, and Business Intelligence