Cloud Essentials: CompTIA Authorized Courseware for Exam CLO–001

Learn Cloud Computing Quickly and Easily This full-color guide thoroughly covers the essentials of cloud computing, from key technologies to infrastructure planning, maintenance, security, and more. This practical book also covers all exam objectives for two leading cloud certification exams: the CompTIA Cloud Essentials (CLO-001) and the EXIN Cloud Computing Foundation (EX0-116) exams. Whether you're new to the topic, preparing for certification, or brushing up on skills for your job, this is the thorough grounding you need on cloud computing in the modern enterprise. Learn these cloud essentials—and more: Basic concepts—public versus private clouds, client systems, hosting Does it pay? Exploring the cloud business value PaaS, SaaS, IaaS, and XaaS service models Infrastructure planning and strategies for adoption Cloud service rollout and level management Setting up privacy, security, and compliance controls Preparing for CompTIA Exam CLO-001 Preparing for the EXIN Exam EX0-116 Full color screen caps of leading virtualization software Single sign-on authentication This striking Essentials book features: Chapter-opening learning objectives Full coverage of all exam topics for both exams Four-color screenshots and illustrations Essentials and Beyond—summaries and additional suggested exercises Chapter review questions

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

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.