Exam Details

Subject data warehousing
Paper
Exam / Course mca
Department
Organization Gujarat Technological University
Position
Exam Date June, 2017
City, State gujarat, ahmedabad


Question Paper

Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
MCA SEMESTER—III-EXAMINATION -SUMMER-2017
Subject code: 3630011 Date: 09/06/2017
Subject Name: Data Warehousing
Time: 02:30 PM 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1

Expand following abbreviations
1. OLAP 2. DDDM 3. SQL 4. SOM
5. ODS 6. VLDB 7. OLTP
07

Answer the Following questions:
1. What is Metadata?
2. What is Dimension Table?
3. What are the stages of Data-warehousing?
4. What is Data mining?
01 02 02 02
Q.2

Why data processing is an important issue in data warehousing? What are the salient features of Data Warehouse?
07

What is Business Intelligence? And how this is related with Data Warehousing?
07
OR

1. What is the difference between OLTP and OLAP? 2. What is Data Mart?
05 02
Q.3

What are the steps of building Data Warehouse?
07

What is Zachman framework? Discuss direct and indirect access of data in data warehouse with respect to framework.
07
OR
Q.3

What is ETL? Define any five tools which are available for ETL.
07

What is the difference between ER Modeling and Dimensional Modeling?
07
Q.4

What is SCD? How many types of SCDs are there define with example.
07

Describe Executive Information System with its potential. What is the application of Drill-down analysis?
07
OR
Q.4

I. Normalization and De-normalization II. Mid-Level Data Model
04 03

I. Multi-Dimensional Model II. Unstructured Data Warehouse
04 03
Q.5

Explain Data Driven Development Methodology.
07

Elucidate Granularity in Data Warehouse
07
OR
Q.5

Describe Snowflake structures
06

Explain the Three-Tier Architecture of Data Warehouse
08



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