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1
SECTION A: MANDATORY QUESTIONS
Q1
Given the following tables:
Employee (SSN, FirstName, LastName, Age, Address, City, State, DeptId)
Department (DepId, DeptName)
Using SQL (and supposing that the two tables have data)
a)
b)
c)
d)
Show the addresses having more than 20 employees
Give the name of department in which KAGABO is working
Give the number of employees in each department
List the employees sorted by their cities
/2.5pts
/2.5pts
/2.5pts
/2.5pts
Q2
Explain the following data mining tasks
/10pts
a) Association (correlation and causality)
b) Classification and Prediction
c) Cluster analysis
d) Regression
e) Summarization
Q3)
a) List Data Visualization Technologies
/4pts
b) What is WEKA?
/1pts
c) What is .arff?
/1pts
d) Create a simple file in Attribute-Relation File Format (ARFF) of your choice with two fields and
five records
/4pts
SECTION B: OPTIONARY QUESTIONS
Q1
a) With an example of your choice, explain the snowflake schema
b) Give and explain typical OLAP Operations
/9pts
/6pts
a) Explain the common Characteristics of Data Warehouse
b) Explain the following terms
i.
Fact Tables
ii.
Dimension Tables
iii.
Schemas
/8pts
a) Explain the process of building data warehouse.
b) Show the diagram of data mining and business intelligence
/7pts
/8pts
Q2
/3pts
/3pts
/1pts
Q3
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