MISY 5360 midterm exam questions with
verified complete solutions
Which |of |the |following |statements |about |Big |Data |is |true?
a. |Data |chunks |are |stored |in |different |locations |on |one |computer
b. |Hadoop |is |a |type |of |processor |used |to |process
c. |MapReduces |is |a |storage |filing |system
d. |Pure |Big |Data |systems |do |not |involve |fault |tolerance |- |CORRECT |ANSWER✔✔-d. |Pure |Big |
Data |systems |do |not |involve |fault |tolerance
In |which |stage |of |extraction, |transformation, |and |load |(ETL) |into |a |data |warel
a. |Transformation
b. |Extraction
c. |Load
d. |Cleanse |- |CORRECT |ANSWER✔✔-a. |Transformation
All |of |the |following |statements |about |data |mining |are |true |EXCEPT:
a. |the |process |aspect |means |that |data |mining |should |be |a |one-step |process |to |results.
b. |the |novel |aspect |means |that |previously |unknown |patterns |are |discovered.
c. |the |potentially |useful |aspect |means |that |results |should |lead |to |some |business |benefit.
d. |the |valid |aspect |means |that |the |discovered |patterns |should |hold |true |on |new |data.
e. |Building |the |model |takes |the |most |time |and |effort |- |CORRECT |ANSWER✔✔-a. |the |process |
aspect |means |that |data |mining |should |be |a |one-step |process |results
For |the |majority |of |organizations, |a |daily |accounts |receivable |transaction |is |a(n)
, a. |Strategic |decision
b. |Structured |decision
c. |Unstructured |decision
d. |Managerial |control |decision |- |CORRECT |ANSWER✔✔-b. |Structured |decision
The____________handle |a |company |s |routine |ongoing |business |and |give |management |the |
ability |to |scour |data |from |data |warehouse |for |information |about |the |business |and |use |the |
analysis |to |provide |tactical |or |operational |decisi |support. |- |CORRECT |ANSWER✔✔-Online |
transaction |processing |system
Which |kind |of |data |warehouse |is |created |separately |from |the |enterprise |data |warehouse |by |a |
department |an |reliant |on |it |for |updates?
a. |Sectional |Data |Mart
b. |Public |Data |Mart
c. |Independent |Data |Mart
d. |Volatile |Data |Mart |- |CORRECT |ANSWER✔✔-c. |Independent |Data |Mart
Operational |or |transaction |databases |are |product |oriented, |handling |transactions |that |update |
the |database. |In |contrast, |data |warehouses |are
a. |subject-oriented |and |nonvolatile.
b. |product-oriented |and |nonvolatile.
c. |product-oriented |and |volatile.
d. |subject-oriented |and |volatile. |- |CORRECT |ANSWER✔✔-a. |subject-oriented |and |nonvolatile.
The |data |field |"salary" |can |be |best |described |as
a. |nominal |data.
b. |interval |data.
c. |ordinal |data.
verified complete solutions
Which |of |the |following |statements |about |Big |Data |is |true?
a. |Data |chunks |are |stored |in |different |locations |on |one |computer
b. |Hadoop |is |a |type |of |processor |used |to |process
c. |MapReduces |is |a |storage |filing |system
d. |Pure |Big |Data |systems |do |not |involve |fault |tolerance |- |CORRECT |ANSWER✔✔-d. |Pure |Big |
Data |systems |do |not |involve |fault |tolerance
In |which |stage |of |extraction, |transformation, |and |load |(ETL) |into |a |data |warel
a. |Transformation
b. |Extraction
c. |Load
d. |Cleanse |- |CORRECT |ANSWER✔✔-a. |Transformation
All |of |the |following |statements |about |data |mining |are |true |EXCEPT:
a. |the |process |aspect |means |that |data |mining |should |be |a |one-step |process |to |results.
b. |the |novel |aspect |means |that |previously |unknown |patterns |are |discovered.
c. |the |potentially |useful |aspect |means |that |results |should |lead |to |some |business |benefit.
d. |the |valid |aspect |means |that |the |discovered |patterns |should |hold |true |on |new |data.
e. |Building |the |model |takes |the |most |time |and |effort |- |CORRECT |ANSWER✔✔-a. |the |process |
aspect |means |that |data |mining |should |be |a |one-step |process |results
For |the |majority |of |organizations, |a |daily |accounts |receivable |transaction |is |a(n)
, a. |Strategic |decision
b. |Structured |decision
c. |Unstructured |decision
d. |Managerial |control |decision |- |CORRECT |ANSWER✔✔-b. |Structured |decision
The____________handle |a |company |s |routine |ongoing |business |and |give |management |the |
ability |to |scour |data |from |data |warehouse |for |information |about |the |business |and |use |the |
analysis |to |provide |tactical |or |operational |decisi |support. |- |CORRECT |ANSWER✔✔-Online |
transaction |processing |system
Which |kind |of |data |warehouse |is |created |separately |from |the |enterprise |data |warehouse |by |a |
department |an |reliant |on |it |for |updates?
a. |Sectional |Data |Mart
b. |Public |Data |Mart
c. |Independent |Data |Mart
d. |Volatile |Data |Mart |- |CORRECT |ANSWER✔✔-c. |Independent |Data |Mart
Operational |or |transaction |databases |are |product |oriented, |handling |transactions |that |update |
the |database. |In |contrast, |data |warehouses |are
a. |subject-oriented |and |nonvolatile.
b. |product-oriented |and |nonvolatile.
c. |product-oriented |and |volatile.
d. |subject-oriented |and |volatile. |- |CORRECT |ANSWER✔✔-a. |subject-oriented |and |nonvolatile.
The |data |field |"salary" |can |be |best |described |as
a. |nominal |data.
b. |interval |data.
c. |ordinal |data.
