DMW CA1

Characteristics of Data warehouse?

• Subject-oriented

• Integrated

• Non-volatile

• All

KDD process

• KDD stands for Knowledge discovery from data

• KDD stands for Knowledge discovery

• KDD stands for Knowledge Data

• None of these

Identify the correct option which defines Datamart.

• Subgroup of DW

• Type of DW

• Not Related DW

• None of these

Data warehouse is generally updated in real-time.

• True

• False

Identify the options below that a data warehouse can include.

• Database Table

• Online Data

• Flat Files

• All

Identify among the following for which system of data warehousing is mostly used.

• Data Mining & storage

• Data Integration & Data Storage

• Reporting and Data Analysis

• Data Cleaning and Storage

Where is data warehousing used?

• Transaction System

• Decision Support System

• Logical System

• None of these

Choose the incorrect property of the data warehouse.

• Subject Oriented

• Volatile

• Time Varient

• None of these

Identify the operation which can be performed in the data warehouse.

• Alter

• Modify

• Scan

• Read/write

On what is data warehouse based?

• Multidimensional model

• 3D model

• 2D model

• 1D model