MISY 160 EXAM 3 UNIVERSITY OF DELAWARE WITH
ALL CORRECT & VERIFIED ANSWERS (UPDATED TO
PASS)
What does a software developer do? Correct answer-Develop applications
Skill software developer needs to have Correct answer-Understanding progragramming languages
and databases
What does a data analyst do? Correct answer-Look at data to find meaning to solve real business
problems
Skill data analysts need to have Correct answer-Analytical skills
What does a database administrator do? Correct answer-Architecting how data is shared
What does a quality assurance analyst do? Correct answer-Finding problems within the
applications, testing the applications to find problems - what the system is supposed to accomplish
What does a business analyst do? Correct answer-Understanding what the business is trying to
accomplish, the processes, the stakeholders, the goals, and the current system
What does a project manager do? Correct answer-Managing people, keeping track of schedules,
communicating risks
Big data Correct answer-Massive amounts of data
How to classify as big data Correct answer-5 Vs: Volume, Velocity, Variety, Veracity, and Value
Velocity Correct answer-Big data is generated at a very high speed
Various data types Correct answer-Structured, semi-structured, unstructured data
Example of structured data Correct answer-Excel records
Example of semi-structured data Correct answer-Log files
Example of unstructured data Correct answer-X-ray images
Veracity Correct answer-Accuracy and trustworthiness of the data
Value Correct answer-The benefit from analyzing the data
Frameworks to store and process big data Correct answer-Cassandra, Hadoop, Spark
How Hadoop distributed file systems Correct answer-File is broken into smaller chunks, making
copies of them, and storing them in various machines
What Map Reduce is Correct answer-Doing parallel processing: Lengthy task is broken into smaller
tasks, one machine takes up one task, multiple machines complete
ALL CORRECT & VERIFIED ANSWERS (UPDATED TO
PASS)
What does a software developer do? Correct answer-Develop applications
Skill software developer needs to have Correct answer-Understanding progragramming languages
and databases
What does a data analyst do? Correct answer-Look at data to find meaning to solve real business
problems
Skill data analysts need to have Correct answer-Analytical skills
What does a database administrator do? Correct answer-Architecting how data is shared
What does a quality assurance analyst do? Correct answer-Finding problems within the
applications, testing the applications to find problems - what the system is supposed to accomplish
What does a business analyst do? Correct answer-Understanding what the business is trying to
accomplish, the processes, the stakeholders, the goals, and the current system
What does a project manager do? Correct answer-Managing people, keeping track of schedules,
communicating risks
Big data Correct answer-Massive amounts of data
How to classify as big data Correct answer-5 Vs: Volume, Velocity, Variety, Veracity, and Value
Velocity Correct answer-Big data is generated at a very high speed
Various data types Correct answer-Structured, semi-structured, unstructured data
Example of structured data Correct answer-Excel records
Example of semi-structured data Correct answer-Log files
Example of unstructured data Correct answer-X-ray images
Veracity Correct answer-Accuracy and trustworthiness of the data
Value Correct answer-The benefit from analyzing the data
Frameworks to store and process big data Correct answer-Cassandra, Hadoop, Spark
How Hadoop distributed file systems Correct answer-File is broken into smaller chunks, making
copies of them, and storing them in various machines
What Map Reduce is Correct answer-Doing parallel processing: Lengthy task is broken into smaller
tasks, one machine takes up one task, multiple machines complete
