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CS614 VU Current Midterm Fall 2012 Paper 14 December 2012

CS614 VU Current Midterm Fall 2012 Paper – 14 December 2012
Subject questions:
Write to reason of increase in cube size in MOLAP. 2 marks

Write first two steps of Basic Sorted Neighborhood (BSN) Method. 2 marks

Justify this statement either correct or incorrect

“if defect are found in process of Attribute Domain Validation it is better to fix error in DWH and leave the data source as it is”. 3 marks

Justify the statement valid or invalid with reasons

“Dimension are quantitative and numerical measurements such as sales $”.(3 marks)

Identify the given statement as correct and incorrect
1.”in Molap the complexity cannot go beyond o(1) in any case”

2.”Drill down is a cube operation and its basic purpose is to select and project”.5 marks

Identify the given statement as correct and incorrect

1.“Lexical error is a type of coverage anomaly”

2.“Data cleansing process is describe as semi automatic but can be performed without the involvement of a domain expert”. 5 marks

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