Question $1$

a$)$ What is data architecture? $[3$ marks$]$

b$)$ List six domains of information management $[6$ marks$]$

c$)$ What is the difference between master data and reference data? Give an example of reference data. $[3$ marks$]$

d$)$ How to calculate customer lifetime value?

$[4$ marks$]$

Total: $16$ Marks

Question $2$

a$)$ What is business intelligence? $[2$ marks$]$

b$)$ What are the differences between data and information? Provide examples. $[2$ marks$]$

c$)$ Estimate the bidding price for an online campaign based on the following scenario:

Conversion rate $-10\%$

Retention rate $10\%$

Average Profit per Customer per Year $-100$

Average Lifetime $3$ years

$[9$ marks$]$

d$)$ Draw a data model for hospital scenario by defining three distinct entities, corresponding attributes, and their description. $[9$ marks$]$

Total: $22$ Marks

Question $3$

a$)$ Compare big data platforms with examples? $[3$ marks$]$

b$)$ What are the pros and cons of Extract$-$Load over Extract$-$Transform$-$Load? $[3$ marks$]$

c$)$ What are the differences between parallel processing and distributed processing? $[4$ marks$]$

d$)$ Explain the process of writing and reading data from HDFS$?[4$ marks$]$

Total: $14$ Marks

Question $4$

a$)$ How much disk space and memory space required to store $5$ PB of data? Assume that the data will be duplicated at least three times. $[9$ marks$]$

b$)$ If the data reading speed is $3\mathrm{.}5$GB per second, then evaluate how much time it would take to read $5$ PB of data in Q$4$a$?$

$[9$ marks$]$

Total: $18$ Marks