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Gujarat Technological UniversitySummer 2026 Examination

GTU 2170715 Data Mining and Business Intelligence (DMBI) Summer 2026 Paper Solution & PDF

B.E. · Computer Engineering · Semester 7 · Subject Code: 2170715
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Total Marks70 MarksExternal theory exam
Passing Marks23 Marks33% minimum cutoff
Exam Duration2.5 Hours2:30 PM – 5:00 PM
Paper Structure5 QuestionsWith internal OR choices
Jump toQ1Q2Q3Q4Q5

Question 1

14 MarksMedium
(a)

What is Business Intelligence (BI)? What is the role of data warehouse in achieving BI?

3 Marks
(b)
Discuss the application of data warehousing and data mining.
4 Marks
(c)
Explain KDD process in detail.
7 Marks

Question 2

14 MarksMedium
(a)
Explain star schema.
3 Marks
(b)
Differentiate between OLAP and OLTP.
4 Marks
(c)

Generate strong association rules for given dataset. (Min_supp = 60% and Min_conf = 80%) Team ID Item_Bought

1{M,O,N,K,E,Y}
2{D,O,N,K,E,Y}
3{M,A,K,E}
4{M,U,C,K,Y}
5{C,O,O,K,I,E}
7 Marks
OR OPTION
(c)

What is data cleaning? Explain Data Cleaning process for missing values & Noisy data.

7 Marks

Question 3

14 MarksMedium
(a)
Define support, confidence, and strong association.
3 Marks
(b)
Explain Mean, Median, Mode and Variance in brief.
4 Marks
(c)
Discuss importance of dimension reduction and algorithms used for it.
7 Marks
OR OPTION
(a)
Why market basket analysis is important?
3 Marks
(b)
What is Cuboid? Explain various OLAP Operations on Data Cube in brief.
4 Marks
(c)
List various data pre-processing tasks. Explain briefly any three tasks.
7 Marks

Question 4

14 MarksMedium
(a)
Explain Support and Confidence measures by taking appropriate example.
3 Marks
(b)
Explain Bayesian learning and inference.
4 Marks
(c)

What is Information Gain? Explain classification based on Decision Tree induction with the help of a suitable example.

7 Marks
OR OPTION
(a)
Write advantages of Business Intelligence.
3 Marks
(b)

Explain role of business intelligence in any one business domain. Discuss how it helps in business growth.

4 Marks
(c)
Explain linear and non-linear regression.
7 Marks

Question 5

14 MarksMedium
(a)
Differentiate between classification and clustering.
3 Marks
(b)
Difference between Data Mining and Text Mining
4 Marks
(c)
Write a short note on Hadoop MapReduce.
7 Marks
OR OPTION
(a)
Discuss fraud detection and click-stream analysis using data mining.
3 Marks
(b)
What is Big Data? Discuss the 4 V’s of Big Data.
4 Marks
(c)
What is distributed file system? Explain HDFS architecture in detail.
7 Marks
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About this Examination Paper & Attribution

Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for Data Mining and Business Intelligence (DMBI) (Summer 2026, B.E. · Computer Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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