MCA-5 Data warehouse & Data Mining
PART-A 1. The cuboid that holds the lowest level of summarization is called the ________ (A) D – cubiod (B) Apex – cuboid (C) Base – cuboid (D) None 2. A multidimensional data model is typically organized around a _____________ . (A) Logical table (B) Central table theme (C) Dimension table (D) None 3. The data cube is a ________ for multidimensional data storage. (A) Instance (B) Schema (C) Metaphor (D) None 4. The cuboid which holds the highest level of summarization is called _____ (A) 1 – D cuboid (B) High – cuboid (C) Base cuboid (D) Apex – cuboid 5. In star schema, each dimension is represented by only _________that contains a set of ___ (A) One table (B) Many table (C) Property (D) Attribute (1) A C (2) BC (3) AD (D) AD 6. OLAP provides a ______ environment for interactive data analysis (A) User – safety (B) User – required (C) User – friendly (D) None 7. Each dimension contain multiple level of ________ defined by concept hierarchies (A) Behaviour (B) Property (C) O...