Cloud Essentials: CompTIA Authorized Courseware for Exam CLO-001
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CompTIA-Authorized courseware for the Cloud Essentials Exam (CLO-001)

What better way to get up to speed on cloud computing than with this new book in the popular Sybex Essentials series? Cloud Essentials covers the basics of cloud computing and its place in the modern enterprise. Explore public and private clouds; contrast the "as a service" models for PaaS, SaaS, IaaS, or XaaS platforms; plan security; and more. In addition, the book covers the exam objectives for the both the CompTIA Cloud Essentials (Exam CLO-001) exam and the EXIN Cloud Computing Foundation (EX0-116) certification exams and includes suggested exercises and review questions to reinforce your learning.

Gets you up to speed on the hottest trend in IT--cloud computingPrepares IT professionals and those new to the cloud for and cover all of the CompTIA Cloud Essentials and EXIN Cloud Computing Foundation exam objectivesServes as CompTIA Authorized courseware for the examExamines various models for cloud computing implementation, including public and private cloudsContrasts "as a service" models for platform (PaaS), software (SaaS), infrastructure (IaaS), and other technologies (XaaS)Identifies strategies for implementation on tight budgets and goes into planning security and service management Get a through grounding in cloud basics and prepare for your cloud certification exam with Cloud Essentials.


Kirk Hausman is an adjunct professor for the University of Maryland and Assistant Commandant for IT, PR, and Strategic Communications for Texas A&M University. He has been an ISO and director of IT services for numerous sectors, including sustainable energy technologies. His professional certifications include PMP, CISSP, CISA, CISM, CGEIT, and CRISC.

Susan L. Cook is an IT manager at Texas A&M University, specializing in enterprise risk assessment and compliance. She has master's degrees in information technology and security management and holds several IT certifications, including CIS and CRISC.

Telmo Sampaio is the main trainer at MCTrainer.NET, his own training and consulting company. He travels the world educating Microsoft employees and partners on different technologies, including cloud computing.


CompTIA Certification xiii

Introduction xvii

Chapter 1: What Is Cloud Computing? 1

Defining Cloud Computing 1

Understanding Distributed Application Design 5

Understanding Resource Management Automation 7

Understanding Virtualized Computing Environments 8

Understanding High-Performance Computing Models 9

Understanding Cloud Computing Technologies 10

The Essentials and Beyond 12

Chapter 2: Cloud Models 15

Evolving from Virtualization to the Cloud 15

Planning Organizational Roles in the Cloud 19

Identifying Cloud Deployment Models and Scope Modifiers 21

Cloud Deployment Models 21

Model Scope Modifiers 23

Including Future Cloud Models 26

The Essentials and Beyond 26

Chapter 3: Service Models 29

Categorizing Cloud Services 29

Examining Software as a Service 32

Examining Platform as a Service 35

Examining Infrastructure as a Service 39

Identifying Emerging Cloud Database Capabilities 41

Sharding 42

Database Profiling 42

Defining Everything as a Service 43

The Essentials and Beyond 44

Chapter 4: Current Cloud Technologies 47

Comparing Traditional Technologies and Cloud Alternatives 47

Accessing the Cloud 56

Networking in the Cloud 56

Web Access Architecture 57

Leveraging Software as a Service 58

Personal Software as a Service Applications 58

Enterprise Software as a Service Applications 62

Cloud-Specifi c Software as a Service Applications 63

Developing within Platform as a Service 64

Implementing Infrastructure as a Service 66

Empowering Mobile Computing 70

The Essentials and Beyond 73

Chapter 5: Cloud Business Value 75

Identifying Business Drivers for Cloud Computing 75

Reducing Costs and Increasing Efficiency 75

Increasing Organizational Agility 78

Examining the Business Impact 79

Evaluating Cloud Computing Costs 80

Identifying Value Now and in the Future 82

Choosing the Appropriate Cloud Model 82

Making the Right Decision 83

The Essentials and Beyond 84

Chapter 6: Cloud Inf rastructure Planning 87

Understanding Cloud Networks 87

The Open Systems Interconnection Model 88

Internet Protocol Version 90

Network Challenges 91

Infrastructural Changes 92

Leveraging Automation and Self-Service 94

Understanding Federated Cloud Services 97

Achieving Interoperability 99

Cloud Computing Standards 100

The Essentials and Beyond 101

Chapter 7: Strategies for Cloud Adoption 105

Aligning Cloud Deployments with Organizational Goals 105

Identifying the Impact of Cloud Adoption to Business Processes 110

Culture and Business Changes 110

Management Changes 112

Testing for Readiness 112

Understanding the Importance of Service-Level Agreements 114

Cloud Service-Level Agreements (SLAs) 115

The Essentials and Beyond 115

Chapter 8: Applications in the Cloud 119

Understanding the Role of Standard Applications 119

Desktop Applications 122

Distributed Applications 124

Web-Based Applications 126

Cloud Applications 126

Developing Cloud-Ready Applications 128

Cloud-Ready Application Patterns 128

Cloud-Ready Application Development 132

Migrating Applications to the Cloud 133

Preparing for Technical Challenges 134

Identifying and Mitigating Risks 136

The Essentials and Beyond 138

Chapter 9: Cloud Service Rollout 141

Identifying Vendor Roles and Responsibilities 141

Identifying Organizational Skill Requirements 144

Software as a Service (SaaS) 145

Platform as a Service (PaaS) 147

Infrastructure as a Service (IaaS) 148

Transitioning to Live Environments 149

Preparing for Incident Management 150

The Essentials and Beyond 153

Chapter 10: Cloud Service-Level Management 157

Understanding ITIL Service Management 157

ITIL Overview 158

Applying ITIL to Cloud Computing 163

Planning the Service Strategy 164

Planning a Service Desk Operation 166

Developing and Utilizing Performance Metrics 167

Running a Cloud Service Operation 167

General Performance Metrics 168

Tools 171

Implementing Continual Process Improvement 172

Service Evaluation 172

Process Evaluation 173

Definition of Improvement Initiatives 173

CSI Monitoring 173

The Essentials and Beyond 173

Chapter 11: Security in the Cloud 177

Understanding Security and Risk 177

Key Principles of Information Security 177

Risk Management Basics 180

Reviewing Security Standards 182

Exploring Common Security Risks and Mitigations184

Application Interface 187

Shared Technology 187

Insider and Criminal Threats 188

Data Exposure and Loss188

Organizational Risks 189

Implementing an ISMS 190

Responding to Incidents 191

Digital Forensics in the Cloud 192

Recognizing Security Benefi ts 193

The Essentials and Beyond 193

Chapter 12: Privacy and Compliance 197

Identifying Legal Risks 197

Records Management 200

Software Licensing 202

Audit 203

Identifying Privacy Risks 204

Safe Harbor 205

Managing Identity in the Cloud 206

Federated Identity Management 207

Single Sign-On 207

The Essentials and Beyond 208

Appendix A: Future of the Cloud 211

Appendix B: Answers to Review Questions 217

Appendix C: CompTIA's Certification Program 233

Appendix D: EXIN's Certification Program 239

Glossary 245

Index 257