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OLTP and Data Mart Concepts

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Questions and Answers

What is the primary focus of OLTP?

Quick, real-time transactional tasks

What is the main purpose of a Data Mart?

To store condensed, subject-oriented data for easy access and analysis

What is the primary function of OLAP?

To query and analyze multidimensional data from data warehouses

What is the main goal of Classification in Data Mining?

Organizing data into predefined categories based on input features Signup and view all the answers

What is the purpose of Anomaly Detection in Data Mining?

Identifying unusual patterns or outliers in the data Signup and view all the answers

State two advantages of using data warehousing.

<ol> <li>Data Integration: It consolidates data from multiple sources into a single, coherent repository, providing a unified view of information across the organization. 2. Improved Decision Making: By providing easy access to comprehensive & reliable data, data warehouses enable organizations to make informed decisions based on accurate insights and analysis.</li> </ol> Signup and view all the answers

What are the main components of Spark?

<ol> <li>Spark Core: Provides basic functionality for distributed task scheduling, memory management, & fault recovery. 2. Spark SQL: Allows working with structured data using SQL queries, and integrates SQL queries with Spark programs. 3. Spark Streaming: Enables processing real-time streaming data in micro-batches or real-time modes. 4. MLlib (Machine Learning Library): Provides scalable machine learning algorithms for classification, regression, clustering, etc. 5. GraphX: A graph processing library for analyzing graph-structured data.</li> </ol> Signup and view all the answers

List two disadvantages of data mining.

<ol> <li>Data Quality: Relies heavily on the quality & accuracy of data. 2. Privacy Concerns: Raises ethical & privacy issues related to the use of personal data.</li> </ol> Signup and view all the answers