Exam Solution Manual for Extra Credit- Latest 2025 (Fully Solved)
What are the three V's of big data? - Answers Volume, Velocity, and Variety
Moore's Law suggests that physical capacity and performance of computers doubles every two years. -
Answers True
Velocity is a part of big data since it includes _____ from more than 18 billion networks. - Answers
streaming data
Examples of variety of big data include _____ such as books, blogs, news articles, photos, tweets, as well
as video and audio files. - Answers unstructured data
Big Data means that you cannot use your computer's standard approach to analyze data. - Answers True
Big data algorithms are so sophisticated that the processes are almost _____ to consumers. - Answers
invisible
By using big data, companies can predict future trends to market and price their goods accordingly. This
has been useful in the _____ industry. - Answers fashion
An example of big data that influences science includes Google - Answers flu trends
One of the ways that big data is different than small data is that if something goes wrong in the process,
it is not easy to start the data set again. This is referred to as - Answers reproducibility
The three facets of data science are - Answers domain knowledge, coding, and statistics
For those in big data, there is a high level of _____ among practitioners. - Answers heterogeneity
A very large and static data set with a consistent format is an example of - Answers volume
Although people want access to quality research, what is it that people do not want? - Answers People
do not want their private information to become public.
What is the definition of confidentiality of data? - Answers if individuals are identified in data, their data
will not be shared with people they do not specifically allow to see it
Human-generated data may be _____ than the computer generated metadata that accompanies it. -
Answers smaller
As much as _____% of the world's data will never be seen by human eyes. - Answers 95
Nearly 80% of database users use some form of - Answers relational databases
Two common formats for semi-structured data are - Answers XML and JSON
, Cloud storage is _____. That means is can be rented on an as-needed basis without up-front cost for
installation or maintenance. - Answers scalable
_____ is thought of as the consumer layer of crowd computing and includes web applications that run
entirely through the browser. - Answers SaaS
Hadoop is - Answers a collection of software applications used to work with big data
What is one challenge of big data quality? - Answers Data often originates outside of a project and could
introduce errors
The process of loading data into software for analysis is called - Answers load
Access to big data means that you can automatically solve organizational questions. - Answers False
Use _____ detection when you need to know if something unusual happens and _____ when you know
what you are looking for. - Answers anomaly; monitoring
The most common application of data mining is - Answers online advertising
When many predictions are averaged, the result will be close to the real number. - Answers True
Computers are far better at visualization than humans. - Answers False
Excel is the _____ most common application that data miners use. - Answers Third
All of the following are characteristics of PHP, except: _____ - Answers jump around instructions
Which version of PHP had improved Object-Oriented programming? - Answers version 5
Select the feature that is correct about PHP. - Answers All of these are correct
Which of the following is needed to develop with PHP? - Answers All of these are correct
The Apache web server items Web Sharing option and Sites directory were removed in Mac OS 10.8. -
Answers True
The command that you use to determine whether apache is running is _____. - Answers ps aux I grep
httpd
You would use "sudo chmod 644 username.conf" to change the permission to read/write on the
username.conf file. - Answers true
After making the configuration changes, you can run the following command to make sure that the
syntax is correct. sudo apachectl configtest - Answers true
Which of the following options contains an easy-to-use command that replaced Entropy to upgrade
PHP? - Answers Liip
What are the three V's of big data? - Answers Volume, Velocity, and Variety
Moore's Law suggests that physical capacity and performance of computers doubles every two years. -
Answers True
Velocity is a part of big data since it includes _____ from more than 18 billion networks. - Answers
streaming data
Examples of variety of big data include _____ such as books, blogs, news articles, photos, tweets, as well
as video and audio files. - Answers unstructured data
Big Data means that you cannot use your computer's standard approach to analyze data. - Answers True
Big data algorithms are so sophisticated that the processes are almost _____ to consumers. - Answers
invisible
By using big data, companies can predict future trends to market and price their goods accordingly. This
has been useful in the _____ industry. - Answers fashion
An example of big data that influences science includes Google - Answers flu trends
One of the ways that big data is different than small data is that if something goes wrong in the process,
it is not easy to start the data set again. This is referred to as - Answers reproducibility
The three facets of data science are - Answers domain knowledge, coding, and statistics
For those in big data, there is a high level of _____ among practitioners. - Answers heterogeneity
A very large and static data set with a consistent format is an example of - Answers volume
Although people want access to quality research, what is it that people do not want? - Answers People
do not want their private information to become public.
What is the definition of confidentiality of data? - Answers if individuals are identified in data, their data
will not be shared with people they do not specifically allow to see it
Human-generated data may be _____ than the computer generated metadata that accompanies it. -
Answers smaller
As much as _____% of the world's data will never be seen by human eyes. - Answers 95
Nearly 80% of database users use some form of - Answers relational databases
Two common formats for semi-structured data are - Answers XML and JSON
, Cloud storage is _____. That means is can be rented on an as-needed basis without up-front cost for
installation or maintenance. - Answers scalable
_____ is thought of as the consumer layer of crowd computing and includes web applications that run
entirely through the browser. - Answers SaaS
Hadoop is - Answers a collection of software applications used to work with big data
What is one challenge of big data quality? - Answers Data often originates outside of a project and could
introduce errors
The process of loading data into software for analysis is called - Answers load
Access to big data means that you can automatically solve organizational questions. - Answers False
Use _____ detection when you need to know if something unusual happens and _____ when you know
what you are looking for. - Answers anomaly; monitoring
The most common application of data mining is - Answers online advertising
When many predictions are averaged, the result will be close to the real number. - Answers True
Computers are far better at visualization than humans. - Answers False
Excel is the _____ most common application that data miners use. - Answers Third
All of the following are characteristics of PHP, except: _____ - Answers jump around instructions
Which version of PHP had improved Object-Oriented programming? - Answers version 5
Select the feature that is correct about PHP. - Answers All of these are correct
Which of the following is needed to develop with PHP? - Answers All of these are correct
The Apache web server items Web Sharing option and Sites directory were removed in Mac OS 10.8. -
Answers True
The command that you use to determine whether apache is running is _____. - Answers ps aux I grep
httpd
You would use "sudo chmod 644 username.conf" to change the permission to read/write on the
username.conf file. - Answers true
After making the configuration changes, you can run the following command to make sure that the
syntax is correct. sudo apachectl configtest - Answers true
Which of the following options contains an easy-to-use command that replaced Entropy to upgrade
PHP? - Answers Liip
