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Business Analytics Exam #1 questions with actual answers.
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Business Analytics Exam #1 questions with actual answers.
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Business Analytics Exam #1 questionswith actual answers.
What is a programming language? ANS - a formal set of instructions that can be used to produce
various kinds of output
What is a programming tool? ANS - a software package that allows the execution of programming code
Which of the following is RStudio? ANS - a programming tool
Which of the following is an example of a non-programming tool for data analytics? ANS - JMP
What does open source mean? ANS - developed by and for the community and available for free
Which is an advantage of R? ANS - designed for data analytics
Which is an advantage of Python? ANS - integrates well with programming activities outside data
analytics
Which of the following is not a programming language important for business analytics? ANS - RStudio
Which is not an Excel function important to business analytics? ANS - mean
What is an integer? ANS - variable that contains numbers without decimal points
Big data are useless to a company unless ANS - the company has a place to analyze and easily access
the information
, What does a query do? ANS - allows you to ask a question and answer the said question through
information pulled from the database
What is the role of a relational database? ANS - to store large amounts of data and create easy access
to important information
What is one function that a relational database can do that a non-relational database cannot? ANS -
join queries
What is a primary key in a relational database? ANS - a column that uniquely identifies a row in the
table
Which type of non-relational database is best for the data structure of social media websites? ANS -
graph database
Which type of non-relational database is best for the simplest data modeling? ANS - key-value stores
Hadoop is an open-source software framework that stores and processes large amounts of data using
________. ANS - commodity cluster hardware
The Hadoop ecosystem encompasses Hadoop's various tools and projects, which were designed to
promote ANS - optimal usability
Which of the following is used to restrict rows is SQL? ANS - WHERE
Which of the following is a/are non-commercial open-source database management systems? ANS -
MongoDB only
Suppose there are two tables: A and B. What would the following code output? SELECT * from A RIGHT
JOIN B on A.orderid = B.orderid; ANS - the complete set of records from table B, along with the
matching records (depending on the availability) from table A where tables A and B have the same
orderid
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