Welcome to the Important Terms and Definitions MCQs Page

Dive deep into the fascinating world of Important Terms and Definitions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Important Terms and Definitions, a crucial aspect of Data Warehousing and OLAP. In this section, you will encounter a diverse range of MCQs that cover various aspects of Important Terms and Definitions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Data Warehousing and OLAP.

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Important Terms and Definitions MCQs | Page 10 of 14

Explore more Topics under Data Warehousing and OLAP

01

The Compelling Need for Data Warehousing

02

Building Blocks of Data Warehouse 🔒

03

Trends in Data Warehousing 🔒

04

Planning and Project Management 🔒

05

Defining the Business Requirements

06

Requirements as the Driving Force for Data warehousing 🔒

07

Architectural Components 🔒

08

Infrastructure as the Foundation for Data Warehousing 🔒

09

Role of Metadata in Data Warehousing 🔒

10

Principles of Dimensional Modeling

11

Advanced Topics in Dimensional Modeling 🔒

12

Data Extraction,Transformation and Loading 🔒

13

Importance of Data Quality

14

Matching Information to the Classes of Users

15

OLAP in the Data Warehouse 🔒

16

Data Warehousing and the Web 🔒

17

Data Mining Basics 🔒

18

The Physical Design Process 🔒

19

Data Warehouse Deployment 🔒

20

Growth and Maintenance

Q91.

What is the purpose of Partitioning in the context of databases?

Data categorization in tables

Data encryption for security

Dividing a database into manageable parts for easier management and better performance

Data modeling for multidimensional analysis

Discuss

Answer: (c).Dividing a database into manageable parts for easier management and better performance Explanation:Partitioning is the method for dividing a database into manageable parts for the purpose of easier management and better performance.

Q92.

What does Portability refer to in the context of software?

The ability of software to be duplicated

The ability of software to be shared online

The ability of software to be moved around and made to function on different computing platforms

The ability of software to be upgraded easily

Discuss

Answer: (c).The ability of software to be moved around and made to function on different computing platforms Explanation:Portability refers to the ability of a piece of software to be moved around and made to function on different computing platforms.

Q93.

What is the purpose of Predictive Analysis, and what does it involve?

Analyzing historical data only

Making predictions about the past

Analyzing current data only

Using statistical and data mining techniques to analyze historical and current data to make predictions about the future

Discuss

Answer: (d).Using statistical and data mining techniques to analyze historical and current data to make predictions about the future Explanation:Predictive Analysis includes a variety of statistical and data mining techniques to analyze historical and current data to make predictions about the future.

Q94.

What is a Primary Key in the context of a database table?

A key used for encryption in databases

A unique identifier for a database table

A key used for data entry in databases

A key used for database indexing

Discuss

Answer: (b).A unique identifier for a database table Explanation:A Primary Key is one or more fields or attributes that uniquely identify each record in a database table.

Q95.

What is a Punch Card, and how was it used in old computer systems?

A card for computer gaming

A card for data encryption

A card medium used to store data in old computer systems with 80 columns and several rows

A card for database backups

Discuss

Answer: (c).A card medium used to store data in old computer systems with 80 columns and several rows Explanation:A Punch Card is a card medium that was used to store data in old computer systems. Each card had 80 columns and several rows to store data.

Q96.

What is the purpose of a Query in computing?

Storing data in a database

Retrieving data from the database

Securing data in a database

Backing up data in a database

Discuss

Answer: (b).Retrieving data from the database Explanation:A Query is a computing function that requests data from the database, stating the parameters and constraints for the request.

Q97.

What is a Query Governor in the context of a DBMS?

A mechanism for controlling data entry in databases

A mechanism for monitoring and intercepting runaway queries that might bring down the database system

A mechanism for database encryption

A mechanism for database indexing

Discuss

Answer: (b).A mechanism for monitoring and intercepting runaway queries that might bring down the database system Explanation:A Query Governor is a mechanism, usually in the DBMS, used to monitor and intercept runaway queries that might bring down the database system.

Q98.

What does RAID stand for, and what is its purpose in disk storage?

Random Access and Integrated Disks; a system for random data access on integrated disks

Redundant Array of Integrated Disks; a system for redundant data storage on integrated disks

Redundant Array of Inexpensive Disks; a system of disk storage where data is distributed across several drives for faster access and improved fault tolerance

Random Array of Inexpensive Disks; a system for random data access on inexpensive disks

Discuss

Answer: (c).Redundant Array of Inexpensive Disks; a system of disk storage where data is distributed across several drives for faster access and improved fault tolerance Explanation:RAID stands for Redundant Array of Inexpensive Disks, and its purpose is a system of disk storage where data is distributed across several drives for faster access and improved fault tolerance.

Q99.

What does RDBMS stand for, and what is its purpose?

Relational Database Management System; a system for managing non-relational databases

Reverse Database Management System; a system for transforming logical models into physical schemas

Relational Database Modeling System; a system for modeling relational databases

Replication Database Management System; a system for creating copies of databases

Discuss

Answer: (a).Relational Database Management System; a system for managing non-relational databases Explanation:RDBMS stands for Relational Database Management System, and its purpose is to manage relational databases.

Q100.

What is Referential Integrity in the context of relational tables?

Integrity of data during replication

Integrity between related tables; established if non-null values in the foreign key field of the child table are primary key values in the parent table

Integrity of data during reverse engineering

Integrity of data in multidimensional data cubes

Discuss

Answer: (b).Integrity between related tables; established if non-null values in the foreign key field of the child table are primary key values in the parent table Explanation:Referential Integrity refers to two relational tables that are directly related. It is established if non-null values in the foreign key field of the child table are primary key values in the parent table.

Page 10 of 14

Building Blocks of Data Warehouse 🔒

Trends in Data Warehousing 🔒

Planning and Project Management 🔒

Requirements as the Driving Force for Data warehousing 🔒

Architectural Components 🔒

Infrastructure as the Foundation for Data Warehousing 🔒

Role of Metadata in Data Warehousing 🔒

Advanced Topics in Dimensional Modeling 🔒

Data Extraction,Transformation and Loading 🔒

OLAP in the Data Warehouse 🔒

Data Warehousing and the Web 🔒

Data Mining Basics 🔒

The Physical Design Process 🔒

Data Warehouse Deployment 🔒

Welcome to the Important Terms and Definitions MCQs Page

Important Terms and Definitions MCQs | Page 10 of 14

Explore more Topics under Data Warehousing and OLAP

The Compelling Need for Data Warehousing

Defining the Business Requirements

Principles of Dimensional Modeling

Importance of Data Quality

Matching Information to the Classes of Users

Growth and Maintenance

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