CH11 ACCTG

Data normalization focuses on conserving Answers A. Data confidentiality. B. Data availability. C. Data integrity. D. Data compliance.

Data integrity

Which of the following best describes semi-structured data? Answers A. Data that are not highly organized but still have some identifying information. B. Information that has little or no predefined organizational structure. C. Large amounts of data collected from various sources. D. Data organized into predefined groupings that can be easily sorted or searched.

Data that are not highly organized but still have some identifying information.

Which of the following best describes unstructured data? Answers A. Conforms with the organization of data models associated with relational databases. B. Data with a high level of organization. C. Information that is not organized in a pre-defined manner (e.g., text-heavy facts, dates, numbers, and images). D. Data systematically stored with markers to enforce hierarchies of records and fields within the data.

Information that is not organized in a pre-defined manner (e.g., text-heavy facts, dates, numbers, and images).

Which of the following is a correct statement regarding in-memory analytics? Answers A. It examines large amounts of data to discover patterns in the data. B. It analyzes data from system memory instead of hard drives. C. It is an open source software framework that stores large amounts of data and runs applications on clusters of commodity hardware. D. It is a technology that uses data, statistical algorithms, and machine-learning techniques to identify the likelihood of future outcomes based on historical data.

It analyzes data from system memory instead of hard drives.

Financial statements and their notes are examples of Answers Financial Statements Notes to Financial Statements A. Unstructured data Unstructured data B. Structured data Structured data C. Unstructured data Structured data D. Structured data Unstructured data

Structured, Unstrucured

Which of the following is included in the Four Vs of big data? Answers A. Velocity. B. Variety. C. Volume. D. All of the answers are correct.

All correct

Under what data analytics method would dashboards and score cards be used? Answers A. Predictive. B. Prescriptive. C. Diagnostic. D. Descriptive.

Diagnostic

Under which category of data analysis should "anomaly detection" be classified? Answers A. Predictive analysis. B. Prescriptive analysis. C. Descriptive analysis. D. Diagnostic analysis.

Diagnostic

An organization's primary focus is on what it needs to do in order to accomplish its predicted future. Which of the following data analytics methods would best address this concern? Answers A. Anomaly detection. B. Network analysis. C. Predictive analysis. D. Prescriptive analysis.

Prescriptive

The type of data analytics that is most likely to yield the most impact for an organization but is also the most complex is called Answers A. Predictive analysis. B. Prescriptive analysis. C. Diagnostic analysis. D. Descriptive analysis.

Prescriptive analysis

Which one of the following statements defines data mining? Answers A. A process of using algorithms that serve to facilitate efficient communication within a firm. B. A system used to organize and interpret complex data to ensure the data has been accurately recorded in the database. C. A system used to develop a firm's performance metrics. D. A process of using statistical techniques to extract and analyze data from large databases to discern patterns and trends.

A process of using statistical techniques to extract and analyze data from large databases to discern patterns and trends.

A car insurance company is considering opening branches in a foreign country. The country's population has been growing rapidly for the last 5 years. The company wants to know whether the number of car accidents are correlated with the recent population growth. Which of the following charts prepared by an analyst would be most helpful to the company? Answers A. A table showing the number of car accidents in rows and the population size in columns. B. A scatter plot showing the number of car accidents on the y-axis and the population size on the x-axis. C. A pie chart showing the number of car accidents in each city for the last 5 years. D. A line chart showing each month on the x-axis and the number of car accidents on the y-axis.

A scatter plot showing the number of car accidents on the y-axis and the population size on the x-axis.

Deviation from expected results can be identified by which application of data analytics? Answers A. Data fusion. B. Diagnostic analysis. C. Prescriptive analysis. D. Anomaly detection.

Anomaly detection

A. Ensures the presentation of trends and correlations are understood by a wider audience without bias. B. Assists with big data analytics to display data results in a visual context. C. Is most useful to an audience when visualization tools present various items in different scales and skip values to highlight items emphasized by the presenter. D. Includes visualization tools such as bubble charts, Pareto diagrams, boxplots, and what-if analyses.

Assists with big data analytics to display data results in a visual context.

Which of the following is a critical success factor in data mining a large data store? Answers A. Effective search engines. B. Pattern recognition. C. Accurate universal resource locator (URL). D. Image processing systems.

Pattern recognition

Pie charts are best used for displaying Answers A. The relationship between two quantitative variables. B. Relative proportions at a specific period in time. C. Changes in components over time. D. Trends or variability over time.

Relative proportions at a specific period in time.

Bubble charts, while similar to scatter plots, add a third variable, which is Answers A. Rectangles of different colors and sizes. B. Time-series data. C. Colors and shading. D. The size of data points.

The size of data points

Which of the following best represents the application of predictive analytics? Answers A. The website recommends pet toys and bedding after the customer purchases pet food. B. A cost accountant monitors whether direct materials used are within the acceptable variations for the last 6 months. C. A consultant organizes an analysis of causation for dissatisfied workers and possible interactions among causes. D. The human resource manager prepares an analysis to show which departments have the highest employee turnover.

The website recommends pet toys and bedding after the customer purchases pet food.

Each of the following represents a characteristic of big data except Answers A. Mixture. B. Uniformity. C. Size. D. Speed.

Uniformity