Question 1

A(n) _____ analyzes massive sets of internal, external, and big data to help an organization make faster and better decisions.
A)data visualizer
B)data scientist
C)system DBA
D)application DBA

Accepted Answer

A data scientist is responsible for analyzing large sets of data, including internal, external, and big data, to aid an organization in making quicker and more informed decisions. They use a variety of statistical, machine learning, and analytical techniques to interpret complex data.

Question 2

Which of the following is not a typical qualification for a data scientist?
A)strong data modeling skills
B)experience with big data technologies
C)data visualization skills
D)advanced degree in computer science

Accepted Answer

The answer of Which of the following is not a...

Question 3

Which of the following positions is a typical prerequisite for a data scientist?
A)product manager
B)chief information officer
C)statistician
D)chief security officer

Accepted Answer

Statisticians have the mathematical and statistical knowledge that is fundamental to the data science field, making this position a common stepping stone to becoming a data scientist.

Question 4

Which of the following is not a technology that a data warehouse administrator typically manages?
A)business intelligence (BI)
B)extract, transform, load (ETL)
C)Online Analytical Processing (OLAP)
D)spyware/malware detection software (SMDS)

Accepted Answer

Spyware/malware detection software (SMDS) is not typically managed by a data warehouse administrator. Their primary focus is on technologies related to data storage, processing, and analysis, such as BI, ETL, and OLAP.

Question 5

_____ represents information in the form of a chart, diagram, or picture.
A)Business modeling
B)Big data
C)Data visualization
D)Data normalization

Accepted Answer

Data visualization is the representation of information in the form of a chart, diagram, or picture, making complex data more accessible and understandable.

Question 6

Which of the following is not a programming language commonly used by data scientists?
A)Hadoop
B)C#
C)SQL
D)Python

Accepted Answer

The answer of Which of the following is not a...

Question 7

What do data scientists typically look for as they analyze data?
A)mathematical errors
B)database performance indicators
C)missing data
D)patterns and trends

Accepted Answer

Data scientists typically look for patterns and trends in data as they analyze it.

Question 8

Which of the following database professionals uses programming algorithms and applies statistics to analyze large sets of data?
A)data entry technician
B)data scientist
C)application DBA
D)data modeler

Accepted Answer

Data scientists use programming algorithms and apply statistics to analyze large sets of data, making sense of complex data patterns to drive decision-making and innovation.

Question 9

Which of the following database professionals most likely helps others understand patterns in data in formats other than lists, summarized reports, and other statistical presentations?
A)data scientist
B)data visualization expert
C)business analyst
D)data modeler

Accepted Answer

Data visualization experts specialize in presenting data in visual formats that help users understand patterns, trends, and insights beyond traditional lists or statistical reports. They use graphical representations to make complex data more accessible and interpretable.

Question 10

_____ is an open source distributed processing framework for managing and processing very large sets of data.
A)GLAPPR
B)Hadoop
C)Python
D)SQL Server

Accepted Answer

Hadoop is specifically designed as an open source framework for distributed storage and processing of large data sets across clusters of computers using simple programming models.

Question 11

Which of the following is one of the most identifiable entry-level database industry job titles?
A)chief security officer
B)data analyst
C)application DBA
D)data visualization expert

Accepted Answer

A data analyst is a common entry-level position in the database industry, focusing on interpreting data and providing insights.

Question 12

Which of the following is not a typical area that a database operations manager focuses on?
A)security
B)government regulations
C)database performance
D)backup and recovery

Accepted Answer

The answer of Which of the following is not a...

Question 13

Which of the following database professionals would focus on how large-scale research produces better products?
A)data archivist
B)data visualization expert
C)database operations manager
D)data scientist

Accepted Answer

Data scientists specialize in analyzing large datasets to derive insights and solutions, often focusing on research and development to improve products or services.

Question 14

Which of the following is not one of the top five database certifications?
A)MySQL Certified Database Analyst
B)IBM Certified Database Administrator-DB2
C)Oracle Certified Professional, MySQL Database Administrator
D)Microsoft SQL Server database certification

Accepted Answer

MySQL Certified Database Analyst is not listed among the top database certifications. The other options, such as IBM, Oracle, and Microsoft certifications, are commonly recognized and highly regarded in the industry.

Question 15

Which of the following is not true about the database industry?
A)Most job outlook articles predict that the database industry will continue with high growth.
B)New certifications on emerging database technologies are constantly being developed.
C)Traditional data management and more recent data analysis positions are both in high demand.
D)Positions as a data analyst or data scientist continue to grow, but not other database fields.

Accepted Answer

The database industry is not limited to growth in just the data analyst or data scientist roles. Other areas within the database field, such as database administration, database development, and data engineering, also continue to see growth. This makes choice D incorrect as it inaccurately suggests that growth is confined to only certain positions within the database industry.

Question 16

A _____ completes the statistical and graphical analysis of internal data such as sales figures and operational expenses to help an organization make faster and better decisions.
A)data archivist
B)database operations manager
C)task-oriented DBA
D)data analyst

Accepted Answer

A data analyst is responsible for analyzing data, including sales figures and operational expenses, to help organizations make informed decisions quickly and effectively.

Question 17

Data visualization is not a feature of which software product?
A)Microsoft Excel
B)Tableau
C)Microsoft Visio
D)Hadoop

Accepted Answer

Hadoop is primarily a framework for distributed storage and processing of large data sets, not for data visualization.

Question 18

Which of the following does a data analyst typically work with?
A)data compliance issues
B)database maintenance
C)business transactions
D)government regulations

Accepted Answer

The answer of Which of the following does a data...

Question 19

Which of the following is not a typical qualification for a data analyst?
A)strong graphic design skills
B)Bachelor's degree in computer science
C)Microsoft Access and Excel skills
D)strong SQL skills

Accepted Answer

Strong graphic design skills are not typically considered a standard qualification for a data analyst. Data analysts usually require skills in data manipulation and analysis, such as proficiency in SQL, Excel, and possibly a background in computer science, but graphic design is generally not among the core skills needed.

Question 20

Which of the following database professionals most likely uses SQL to summarize and analyze data to extract trends, insights, and knowledge?
A)database architect
B)task-oriented DBA
C)system DBA
D)database analyst

Accepted Answer

A database analyst uses SQL to summarize and analyze data to extract trends, insights, and knowledge.

Quiz 2: The Relational Model: Introduction, Qbe, and Relational Algebra

A(n) _____ analyzes massive sets of internal, external, and big data to help an organization make faster and better decisions.

Which of the following is not a typical qualification for a data scientist?

Which of the following positions is a typical prerequisite for a data scientist?

Which of the following is not a technology that a data warehouse administrator typically manages?

_____ represents information in the form of a chart, diagram, or picture.

Which of the following is not a programming language commonly used by data scientists?

What do data scientists typically look for as they analyze data?

Which of the following database professionals uses programming algorithms and applies statistics to analyze large sets of data?

Which of the following database professionals most likely helps others understand patterns in data in formats other than lists, summarized reports, and other statistical presentations?

_____ is an open source distributed processing framework for managing and processing very large sets of data.

Which of the following is one of the most identifiable entry-level database industry job titles?

Which of the following is not a typical area that a database operations manager focuses on?

Which of the following database professionals would focus on how large-scale research produces better products?

Which of the following is not one of the top five database certifications?

Which of the following is not true about the database industry?

A _____ completes the statistical and graphical analysis of internal data such as sales figures and operational expenses to help an organization make faster and better decisions.

Data visualization is not a feature of which software product?

Which of the following does a data analyst typically work with?

Which of the following is not a typical qualification for a data analyst?

Which of the following database professionals most likely uses SQL to summarize and analyze data to extract trends, insights, and knowledge?