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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 6 of 14

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Q51.
What is a Foreign Key in a relational table used for?

a.

Establishing relationships with multiple tables

b.

Identifying primary key values

c.

Linking tables in the same database

d.

Establishing a direct relationship with another table

Discuss
Answer: (d).Establishing a direct relationship with another table Explanation:A Foreign Key in a relational table is used for establishing a direct relationship with another table, known as the parent table.
Q52.
What does Forward Engineering involve in the context of data modeling?

a.

Rewriting existing code

b.

Transforming a physical schema into a logical data model

c.

Transforming a logical data model into a physical schema of a target database

d.

Reversing the engineering process

Discuss
Answer: (c).Transforming a logical data model into a physical schema of a target database Explanation:Forward Engineering is the process of transforming a logical data model into a physical schema of a target database.
Q53.
What does 4GL stand for, and in what context is it commonly used?

a.

Fourth Graphics Language; used for web design

b.

Fourth Generation Language; high-level, nonprocedural language for data manipulation, generally used with relational databases

c.

Four-Level Graphics; used for multimedia development

d.

Fourth Generation Logic; used for artificial intelligence programming

Discuss
Answer: (b).Fourth Generation Language; high-level, nonprocedural language for data manipulation, generally used with relational databases Explanation:4GL stands for Fourth Generation Language, which is a high-level, nonprocedural language for data manipulation, generally used with relational databases.
Q54.
What is the generic term for a computer system that routes data or merges two dissimilar services together?

a.

Database

b.

Gateway

c.

Interface

d.

Router

Discuss
Answer: (b).Gateway Explanation:A Gateway is a generic term referring to a computer system that routes data or merges two dissimilar services together.
Q55.
What does Granularity indicate in the context of data?

a.

Data size

b.

Data structure

c.

Data level or grain

d.

Data format

Discuss
Answer: (c).Data level or grain Explanation:Granularity indicates the level or grain of data, where detailed data have low granularity.
Q56.
What does GUI stand for, and what does it consist of?

a.

Graphics User Interface; consisting of text-based menus

b.

Graphical User Interface; consisting of windows, pointing devices, pull-down menus, drag-and-drop facilities, and icons

c.

General User Interface; consisting of voice commands

d.

Grid User Interface; consisting of spreadsheet-like displays

Discuss
Answer: (b).Graphical User Interface; consisting of windows, pointing devices, pull-down menus, drag-and-drop facilities, and icons Explanation:GUI stands for Graphical User Interface, consisting of windows, pointing devices, pull-down menus, drag-and-drop facilities, and icons.
Q57.
What does HOLAP stand for, and what approach does it use for analytical processing?

a.

Hybrid Online Analytical Programming; combining procedural and object-oriented techniques

b.

Hierarchical Online Analytical Processing; utilizing a tree-like structure for data analysis

c.

Hybrid Online Analytical Processing; combining MOLAP and ROLAP techniques

d.

Hierarchical Online Analytical Programming; integrating procedural and declarative programming

Discuss
Answer: (c).Hybrid Online Analytical Processing; combining MOLAP and ROLAP techniques Explanation:HOLAP stands for Hybrid Online Analytical Processing, an approach that combines the MOLAP (Multidimensional Online Analytical Processing) and ROLAP (Relational Online Analytical Processing) techniques.
Q58.
What are Homonyms in the context of data?

a.

Synonyms for data elements

b.

Data elements with similar content

c.

Data elements with the same name but containing different data

d.

Homogeneous data elements

Discuss
Answer: (c).Data elements with the same name but containing different data Explanation:Homonyms are two or more data elements having the same name but containing different data.
Q59.
What does HTML stand for, and what is its purpose?

a.

HyperText Markup Language; used for database management

b.

High-Level Text Modeling Language; used for data modeling

c.

HyperText Markup Language; a standard for defining and creating Web documents

d.

HyperText Modeling Language; used for multimedia development

Discuss
Answer: (c).HyperText Markup Language; a standard for defining and creating Web documents Explanation:HTML stands for HyperText Markup Language, and it is a standard for defining and creating Web documents.
Q60.
What is the purpose of HTTP in the context of the Web?

a.

HyperText Transfer Process; managing data transfer between servers

b.

HyperText Transfer Protocol; governing the exchange of HTML-coded documents between a Website and a browser

c.

High-Level Text Processing; controlling document formatting

d.

HyperText Transport Protocol; ensuring secure data transmission

Discuss
Answer: (b).HyperText Transfer Protocol; governing the exchange of HTML-coded documents between a Website and a browser Explanation:HTTP stands for HyperText Transfer Protocol, which governs the exchange of HTML-coded documents between a Website and a browser on the Web.
Page 6 of 14

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