WebBCA SEM – VI BCA-603 Data Warehousing and Mining MULTIPLE CHOICE QUESTIONS 1. _____ is a subject-oriented, integrated, time-variant, nonvolatile collection of data … Web13 jun. 2016 · A data warehouse is a large collection of data that can be used to help an organisation make key business decisions. Here’s a more precise definition of the term, …
Part 7 Flashcards Quizlet
Web3 okt. 2024 · 1. __________ is a subject-oriented, integrated, time-variant, nonvolatile collection of data in support of management decisions. A. Data Mining. B. Data … Webc) A subject-oriented integrated time-variant non-volatile collection of data in support of management d) Record oriented classes finding. Answer: B. 14. To remove noise and inconsistent data ____ is needed. a) Data Cleaning b) Data Transformation c) Data Reduction d) Data Integration. Answer: A. 15. Multiple data sources may be combined is ... high shaft ugg boots
Data Warehouse Architecture Explained - Knowledge Base by …
Integrated − A data warehouse is constructed by integrating data from heterogeneous sources such as relational databases, flat files, etc. This integration enhances the effective analysis of data. Time Variant − The data collected in a data warehouse is identified with a particular time period. Meer weergeven The key features of a data warehouse are discussed below − 1. Subject Oriented− A data warehouse is subject oriented because it provides information around a subject rather than the organization's ongoing … Meer weergeven A data warehouses is kept separate from operational databases due to the following reasons − 1. An operational database is constructed for well-known tasks and workloads such as searching particular records, … Meer weergeven As discussed before, a data warehouse helps business executives to organize, analyze, and use their data for decision making. A data warehouse serves as a sole part of a … Meer weergeven WebThese Multiple Choice Questions (MCQs) should be practiced to improve the Data Warehousing skills required for various interviews (campus interviews, walk-in … WebQuestion: 2. a. Data warehouse can be defined as “a subject-oriented, integrated, time-variant, non-volatile collection of data" in support of management's decision making … how many days are there in 18 years