CompTIA DataSys+ Study Guide : Exam DS0-001 (2023)

Name: CompTIA DataSys+ Study Guide : Exam DS0-001 (2023)
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Table of Contents
Cover
Table of Contents
Title Page
Copyright
Dedication
Acknowledgments
About the Authors
About the Technical Editors
Introduction
The DataSys+ Exam
What Does This Book Cover?
Exam DS0-001 Exam Objectives
DS0-001 Certification Exam Objective Map
How to Contact the Publisher
Assessment Test
Answers to Assessment Test
Chapter 1: Today's Data Systems Professional
Data Drives the Modern Business
Data Systems
Careers in Data Systems
Summary
Chapter 2: Database Fundamentals
Types of Databases
Programming and Database Operations
Summary
Exam Essentials
Review Questions

Chapter 3: SQL and Scripting
Flavors of SQL
Automating Operations
Summary
Exam Essentials
Review Questions
Chapter 4: Database Deployment
Planning and Design
Implementation, Testing, and Deployment
Summary
Exam Essentials
Review Questions
Chapter 5: Database Management and Maintenance
Monitoring and Reporting
Maintenance
Facilitating Operations
Data Management Tasks
Summary
Exam Essentials
Review Questions
Chapter 6: Governance, Security, and Compliance
Data Governance
Identity and Access Management
Data Security
Data Classification
Routine Auditing
Summary
Exam Essentials
Review Questions

Chapter 7: Database Security
Database Infrastructure Security
Database Attacks
Summary
Exam Essentials
Review Questions
Chapter 8: Business Continuity
The Nature of Disaster
Disaster Recovery Planning
Backup and Restore
Summary
Exam Essentials
Review Questions
Appendix: Answers to Review Questions
Chapter 2: Database Fundamentals
Chapter 3: SQL and Scripting
Chapter 4: Database Deployment
Chapter 5: Database Management and Maintenance
Chapter 6: Governance, Security, and Compliance
Chapter 7: Database Security
Chapter 8: Business Continuity
Index
End User License Agreement
List of Tables
Chapter 1
TABLE 1.1 Gigabyte Storage Costs over Time
TABLE 1.2 Highest-Demand Occupations
Chapter 2

TABLE 2.1 Customer Data
TABLE 2.2 Customer and Address Data
TABLE 2.3 Address Data
TABLE 2.4 Address Data with Foreign Key
Chapter 3
TABLE 3.1 Common Data Types
TABLE 3.2 Data Manipulation Language Operations
TABLE 3.3 Customer Table
TABLE 3.4 Address Data
TABLE 3.5 Name and Work Address Result Set
TABLE 3.6 LEFT JOIN Name and Address Result Set
Chapter 4
TABLE 4.1 Availability Targets
TABLE 4.2 Default Database Ports
TABLE 4.3 Default Database Ports
Chapter 5
TABLE 5.1 Common Database Index Types
TABLE 5.2 Effective Date Logic
TABLE 5.3 Initial Phone_Type Data Values
TABLE 5.4 Initial Phone_Type Data Values
Chapter 6
TABLE 6.1 Sample Data Classification Matrix
Chapter 8
TABLE 8.1 Business Impact Analysis
List of Illustrations

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Chapter 1
FIGURE 1.1 Analytics is made possible by modern data,
storage, and computing...
FIGURE 1.2 Storage costs have decreased over time.
FIGURE 1.3 SQLQuery
Chapter 2
FIGURE 2.1 Sample Customer table
FIGURE 2.2 Sample Address table
FIGURE 2.3 Customer and Address tables
FIGURE 2.4 Key-value sample data
FIGURE 2.5 JSON document sample data
FIGURE 2.6 Data in a graph
FIGURE 2.7 Sample data in CSV form
FIGURE 2.8 Comparing SQL execution plans
Chapter 3
FIGURE 3.1 DDL for sample Customer table
FIGURE 3.2 Sample Address table
FIGURE 3.3 SQL INSERT syntax
FIGURE 3.4 SQL SELECT syntax
FIGURE 3.5 SQL UPDATE syntax
FIGURE 3.6 SQL DELETE syntax
FIGURE 3.7 Two independent sets
FIGURE 3.8 Union of two sets
FIGURE 3.9 Comparing UNION and UNION ALL result sets
FIGURE 3.10 Intersection of two sets
FIGURE 3.11 INTERSECT result set

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FIGURE 3.12 Difference between two sets
FIGURE 3.13 Differences between sets
FIGURE 3.14 TCL example
FIGURE 3.15 Illustrating the consistency principle
FIGURE 3.16 Before-update trigger example
FIGURE 3.17 After-update trigger example
FIGURE 3.18 Stored procedure example
FIGURE 3.19 Customer data
FIGURE 3.20 Custom function
FIGURE 3.21 Using a view to restrict access
FIGURE 3.22 Using a view to combine data from multiple
tables
FIGURE 3.23 Employee and Order tables
FIGURE 3.24 Server-side and client-side scripts
Chapter 4
FIGURE 4.1 Transactional data sources
FIGURE 4.2 Analytical data sources
FIGURE 4.3 Travel history data
FIGURE 4.4 Direct database integration
FIGURE 4.5 Centralized database integration
FIGURE 4.6 Single database server
FIGURE 4.7 Active-active database cluster
FIGURE 4.8 Active-passive database cluster
FIGURE 4.9 Vertical scaling
FIGURE 4.10 Horizontal scaling
FIGURE 4.11 Conceptual data model

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FIGURE 4.12 Entity-relationship diagram line terminators
FIGURE 4.13 Logical data model
FIGURE 4.14 Data in first normal form
FIGURE 4.15 Data in second normal form
FIGURE 4.16 Data in third normal form
FIGURE 4.17 Physical data model
FIGURE 4.18 Package history view
FIGURE 4.19 Physical data model with package history view
FIGURE 4.20 Excerpt of an entity relationship diagram
FIGURE 4.21 One-to-one cardinality
FIGURE 4.22 Many-to-many cardinality
FIGURE 4.23 Resolving a many-to-many relationship
FIGURE 4.24 Flat network
FIGURE 4.25 Network with public and private subnets
FIGURE 4.26 DNS host-name resolution
FIGURE 4.27 Border and internal firewalls
FIGURE 4.28 Firewall rules for web and database traffic
FIGURE 4.29a Range control with referential integrity
FIGURE 4.29b Range control with a check constraint
FIGURE 4.30a Primary key
FIGURE 4.30b Primary key and unique constraint
FIGURE 4.31 Queries with and without bind variables
FIGURE 4.32a Uncovered query
FIGURE 4.32b Covered query
Chapter 5
FIGURE 5.1 Database CPU utilization

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FIGURE 5.2 Data load failure notification
FIGURE 5.3 Database replication
FIGURE 5.4 Deadlocked transactions
FIGURE 5.5 Connection pooling
FIGURE 5.6 Load-balanced database
FIGURE 5.7 Load-balanced application and database
FIGURE 5.8 Customer table data dictionary entry
FIGURE 5.9 Updated Customer table data dictionary entry
FIGURE 5.10a Original Customer entity
FIGURE 5.10b Modified Customer entity
FIGURE 5.11 Generating DDL from an ERD in Lucidchart
FIGURE 5.12 Updating a table definition using Oracle SQL
Developer Data Mode...
FIGURE 5.13 ALTER TABLE DDL from Oracle SQL
Developer Data Modeler
FIGURE 5.14a Customer and Customer_Address ERD
FIGURE 5.14b Customer and Customer_Address UML
classes
FIGURE 5.15 Updated Customer table
FIGURE 5.16 New Phone and Phone_Type tables
FIGURE 5.17 Creating duplicate data
FIGURE 5.18 Duplicate resolution process
FIGURE 5.19 Data sharing with shared schemas
FIGURE 5.20 Data sharing with APIs
Chapter 6
FIGURE 6.1 Organizational example
FIGURE 6.2 Access roles over time

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FIGURE 6.3 Danger of user-based access
FIGURE 6.4 Sample organization chart
FIGURE 6.5 Sample user group-based roles
FIGURE 6.6 Biometric authentication with a (a) retinal
scanner (b) fingerpri...
FIGURE 6.7 Authentication token
FIGURE 6.8 Creating a password in LastPass
FIGURE 6.9 Encrypted network connection
FIGURE 6.10 HTTPS padlock
FIGURE 6.11 Encrypted ETL process
FIGURE 6.12 Data masking ETL process
FIGURE 6.13 Re-identification by combining data sets
Chapter 7
FIGURE 7.1 Cooling equipment on a data center roof
FIGURE 7.2 Network firewalls divide networks into three
zones.
FIGURE 7.3 Account number input page
FIGURE 7.4 Account information page
FIGURE 7.5 Account information page after blind SQL
injection
FIGURE 7.6 A WAF
FIGURE 7.7 On-path attack
FIGURE 7.8 Windows Defender Antimalware package
Chapter 8
FIGURE 8.1 US earthquake risk map
FIGURE 8.2 Flood hazard map for Miami–Dade County,
Florida

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CompTIA DataSys+ Study Guide : Exam DS0-001 (2023)

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