MIS 180 MEADER FINAL PAPER PRACTICE
QUESTIONS WITH VERIFIED ANSWERS
PACKAGE
●● unstructured data
Answer: data that is difficult to be searched by algorithms, doesn't fit
into relational databases; has internal structure but it is not structured via
pre-defined data models or schema
Ex: Emails, Voice messages, Texts, tweets, Social media, Video / Audio /
Photo
●● Which is easier for businesses to process, structured or unstructured
data, and why?
Answer: structured data is easier for businesses to process because it is
easier for everyone to access and it's controlled by professionals
●● What does "Big Data" mean?
Answer: The name given to the increasingly HUGE collection of data
captured from the world.
Includes structured Data and Unstructured Data
Comes from all sorts of inputs
●● What are the "5 V's" that describe big data?
,Answer: Velocity, Variety, Volume, Veracity, Value
●● Velocity
Answer: the speed at which new data are gathered and stored
●● Variety
Answer: the variety of the kinds of new data
●● Volume
Answer: the sheer quantity of data being gathered and stored
●● Veracity
Answer: the quality (accuracy, credibility) of the data
●● Value
Answer: what you can do with the data
●● What are a few of the challenges that Big Data presents to
businesses?
Answer: The vast amount of growing data is a bit of a challenge in itself,
but the unstructured portion of Big Data makes it difficult to manage.
We still don't have good techniques for indexing and analyzing it.
, ●● Why should we, in a business, avoid using spreadsheets to store
important data and instead use a database management system? Know at
least 3 reasons
Answer: Data redundancy: Unnecessary duplication
data inconsistency
Data isolation: Difficult to do efficient data retrieval and search
Data insecurity: Too easy to get access to it
Data errors: Easy to make errors
●● What are the characteristics of high-quality information?
Answer: -accurate, complete, consistent, timely, and accessible.
-Know that businesses spend lots of money to ensure their data has these
qualities
●● Accurate
Answer: the degree to which information is correct and free from error
- is there an incorrect value in the information?
●● Complete
Answer: - is there a value missing from the information?
●● Consistent
QUESTIONS WITH VERIFIED ANSWERS
PACKAGE
●● unstructured data
Answer: data that is difficult to be searched by algorithms, doesn't fit
into relational databases; has internal structure but it is not structured via
pre-defined data models or schema
Ex: Emails, Voice messages, Texts, tweets, Social media, Video / Audio /
Photo
●● Which is easier for businesses to process, structured or unstructured
data, and why?
Answer: structured data is easier for businesses to process because it is
easier for everyone to access and it's controlled by professionals
●● What does "Big Data" mean?
Answer: The name given to the increasingly HUGE collection of data
captured from the world.
Includes structured Data and Unstructured Data
Comes from all sorts of inputs
●● What are the "5 V's" that describe big data?
,Answer: Velocity, Variety, Volume, Veracity, Value
●● Velocity
Answer: the speed at which new data are gathered and stored
●● Variety
Answer: the variety of the kinds of new data
●● Volume
Answer: the sheer quantity of data being gathered and stored
●● Veracity
Answer: the quality (accuracy, credibility) of the data
●● Value
Answer: what you can do with the data
●● What are a few of the challenges that Big Data presents to
businesses?
Answer: The vast amount of growing data is a bit of a challenge in itself,
but the unstructured portion of Big Data makes it difficult to manage.
We still don't have good techniques for indexing and analyzing it.
, ●● Why should we, in a business, avoid using spreadsheets to store
important data and instead use a database management system? Know at
least 3 reasons
Answer: Data redundancy: Unnecessary duplication
data inconsistency
Data isolation: Difficult to do efficient data retrieval and search
Data insecurity: Too easy to get access to it
Data errors: Easy to make errors
●● What are the characteristics of high-quality information?
Answer: -accurate, complete, consistent, timely, and accessible.
-Know that businesses spend lots of money to ensure their data has these
qualities
●● Accurate
Answer: the degree to which information is correct and free from error
- is there an incorrect value in the information?
●● Complete
Answer: - is there a value missing from the information?
●● Consistent
