University of Cumberlands Questions About Collaborative Tools In 500-600 words, and using the Jamsa (2013) textbook as your ONLY source: List FOUR (4) ques | Course Hero
University of Cumberlands Questions About Collaborative Tools In 500-600 words, and using the Jamsa (2013) textbook as your ONLY source: List FOUR (4) questions to ask about Collaborative Tools as stated by Jamsa (2013). Then, in YOUR OWN words, and in response to the four questions, and from a business owner’s perspective, explain possible issues that could arise in the business if the questions are NOT answered. Questions to Ask About Collaborative Tools Regardless of the collaborative technology you are considering, there is a common set of questions you should consider: Can the solution scale to meet the organizations future needs? Is the solution secure? What are the solutions start-up and operational costs? How will the solution impact the companys IT staffing and resource requirements? What are the solutions learning curve and training requirements? 1
2
3
Brief Contents
Preface
Chapter 1 Introducing Cloud Computing
Chapter 2 Software as a Service (SaaS)
Chapter 3 Platform as a Service (PaaS)
Chapter 4 Infrastructure as a Service (IaaS)
Chapter 5 Identity as a Service (IDaaS)
Chapter 6 Data Storage in the Cloud
Chapter 7 Collaboration in the Cloud
Chapter 8 Virtualization
Chapter 9 Securing the Cloud
Chapter 10 Disaster Recovery and Business Continuity and the Cloud
Chapter 11 Service-Oriented Architecture
Chapter 12 Managing the Cloud
4
Chapter 13 Migrating to the Cloud
Chapter 14 Mobile Cloud Computing
Chapter 15 Governing the Cloud
Chapter 16 Evaluating the Clouds Business Impact and Economics
Chapter 17 Designing Cloud-Based Solutions
Chapter 18 Coding Cloud-Based Applications
Chapter 19 Application Scalability
Chapter 20 The Future of the Cloud
Glossary of Key Terms
Index
Credits
5
Contents
Preface
Chapter 1 Introducing Cloud Computing
Web 2.0 and the Cloud
Distinguishing Cloud Types
Cloud Deployment Models
Cloud Service Models
Exploring Uses of the Cloud
Introducing Scalability
Introducing Virtualization
Collecting Processing Power Through Grid Computing
Chapter Summary
Key Terms
Chapter Review
Chapter 2 Software as a Service (SaaS)
Getting Started with SaaS
Understanding the Multitenant Nature of SaaS Solutions
Understanding OpenSaaS Solutions
Understanding Mashups
Understanding Service-Oriented Architecture (SOA)
Chapter Summary
Key Terms
Chapter Review
6
Chapter 3 Platform as a Service (PaaS)
IT Evolution Leading to the Cloud
Benefits of PaaS Solutions
Disadvantages of PaaS Solutions
Chapter Summary
Key Terms
Chapter Review
Chapter 4 Infrastructure as a Service (IaaS)
Understanding IaaS
Improving Performance Through Load Balancing
Taking a Closer Look at Load Balancing
System and Storage Redundancy
Utilizing Cloud-Based NAS Devices
Advantages of IaaS Solutions
Server Types Within an IaaS Solution
Chapter Summary
Key Terms
Chapter Review
Chapter 5 Identity as a Service (IDaaS)
Understanding Single Sign-On (SSO)
Understanding How SSO Works
Understanding Federated Identity Management
Understanding Account Provisioning
Understanding OpenID
Mobile ID Management
7
Chapter Summary
Key Terms
Chapter Review
Chapter 6 Data Storage in the Cloud
Examining the Evolution of Network Storage
Understanding Cloud-Based Data Storage
Advantages and Disadvantages of Cloud-Based Data Storage
Getting Past the Fear of Cloud-Based Data
Cloud-Based Backup Systems
Understanding File Systems
Industry-Specific Cloud-Based Data Storage
Cloud-Based Database Solutions
Cloud-Based Block Storage
Chapter Summary
Key Terms
Chapter Review
Chapter 7 Collaboration in the Cloud
Collaborating in the Clouds
Questions to Ask About Collaborative Tools
Web-Based Collaboration Began with Web Mail
Instant Messaging Isnt What It Used to Be
Cloud-Based Phone and Fax Systems
Revisiting File Sharing
Editing Shared Files Within the Cloud
Collaborating via Web Logs (Blogs)
8
Collaborative Meetings in the Cloud
Virtual Presentations and Lectures
Using Social Media for Collaboration
Using Cloud-Based Calendar Management
Using Streaming Video Content to Collaborate
Cloud-Based TV Content
Chapter Summary
Key Terms
Chapter Review
Chapter 8 Virtualization
Understanding Virtualization
The History of Virtualization
Leveraging Blade Servers
Server Virtualization
Desktop Virtualization
Desktop Solutions on Demand
Virtual Networks
Data Storage Virtualization
Not All Applications Are Well Suited for Virtualization
Why Virtualize?
Chapter Summary
Key Terms
Chapter Review
Chapter 9 Securing the Cloud
General Security Advantages of Cloud-Based Solutions
9
Introducing Business Continuity and Disaster Recovery
Understanding Data Storage Wiping
Understanding Distributed Denial-of-Service (DDoS) Attacks
Packet Sniffing
Man-in-the-Middle Attack
Monitoring Device Screens
Malicious Employees
Hypervisor Attack
Guest-Hopping Attack
SQL-Injection Attack
Physical Security
Chapter Summary
Key Terms
Chapter Review
Chapter 10 Disaster Recovery and Business Continuity and the Cloud
Understanding the Threats
Threat: Disk Failure
Threat: Power Failure or Disruption
Threat: Computer Viruses
Threat: Fire
Threat: Floods
Threat: Disgruntled Employees
Threat: Lost Equipment
Threat: Desktop Failure
Threat: Server Failure
10
Threat: Network Failure
Threat: Database System Failure
Threat: Phone System Failure
Understanding Service-Level Agreements
Measuring Business Impact: The Essence of Risk Mitigation
Disaster Recovery Plan Template
Chapter Summary
Key Terms
Chapter Review
Chapter 11 Service-Oriented Architecture
Understanding Service-Oriented Architecture
Web Services Are Not Web Pages
Many Companies Provide Web Services
Discovering Web Services
Understanding Web Service Performance
Web Service and Reuse
Scaling Web Services
Web Services and Loose Coupling
Treating a Web Service as a Black Box
Web Service Interoperability
Web Service Description Language
Governing Web Services
Chapter Summary
Key Terms
Chapter Review
11
Chapter 12 Managing the Cloud
Know Your Service-Level Agreement
Ensure and Audit System Backups
Know Your Systems Data Flow
Beware of Vendor Lock-In
Source-Code Escrow
Determine Technical Support and Help Desk Procedures
Determine Training Procedures
Know the Providers Security Policies and Procedures
Define the Data Privacy Requirements
Know Specifics About the Economics of the Cloud and Return on Investment
Monitor Capacity Planning and Scaling Capabilities
Monitor Audit-Log Use
Solution Testing and Validation
Chapter Summary
Key Terms
Chapter Review
Chapter 13 Migrating to the Cloud
Define the System Goals and Requirements
Protect Your Existing Data
Use an Experienced Cloud Consultant
Know Your Applications Current Characteristics
Remember Vendor Lock-In
Define Your Training Requirements
Establish a Realistic Deployment Schedule
12
Review the Budget Factors
Identify IT Governance Issues
Understanding Cloud Bursting
Chapter Summary
Key Terms
Chapter Review
Chapter 14 Mobile Cloud Computing
The Evolution of Mobile Computing
Understanding the G in 3G and 4G
The Mobile Cloud Ecosystem
Introducing the Mobile Players
Pages, Apps, and Widgets
Revisiting the Role of HTML
Mobile Development Considerations
Chapter Summary
Key Terms
Chapter Review
Chapter 15 Governing the Cloud
Understanding Corporate Governance
Understanding Business Strategy
Measure What Is Important
Inspect What You Expect
Understanding Internal Controls
Extending Governance to Information Technology
Cloud Computing Governance
13
Chapter Summary
Key Terms
Chapter Review
Chapter 16 Evaluating the Clouds Business Impact and Economics
Business Economics
Total Cost of Ownership
Economies of Scale
Capital Expenditures
Operational Expenses
Return on Investment
Profit Margins
Moores Law and the Cloud
Understanding Right-Sizing
Defining a Large Data Center
Other Economic Key Performance Indicators
Marketing the Cloud
Chapter Summary
Key Terms
Chapter Review
Chapter 17 Designing Cloud-Based Solutions
Revisit the System Requirements
When to Select a Development Environment
Design Is a Give-and-Take Process
Designing for Accessibility
Designing for Audit
14
Designing for Availability
Designing for Backup
Designing for Existing and Future Capacity
Designing for Configuration Management
Designing for Deployment
Designing for Disaster Recovery
Designing for the Environment (Green Computing)
Designing for Interoperability
Designing for Maintainability
Designing for Performance
Designing for Price
Designing for Privacy
Designing for Portability
Designing for Recovery
Designing for Reliability
Designing for Response Time
Designing for Robustness
Designing for Security
Designing for Testability
Designing for Usability
Chapter Summary
Key Terms
Chapter Review
Chapter 18 Coding Cloud-Based Applications
Creating a Mashup Using Yahoo! Pipes
15
Creating a Simple Yahoo! Pipe
Using Google App Engine
Creating a Hello, World! Application with Google App Engine
Downloading the Google App Engine Software Development Kit
Deploying a Simple Google App Engine Example
Creating a More Advanced Google App Engine Application
Creating a Windows Azure Hello, World! Application
Chapter Summary
Key Terms
Chapter Review
Chapter 19 Application Scalability
Reviewing the Load-Balancing Process
Designing for Scalability
Scaling Up, Scaling Out, or Both
Minimize Objects on Key Pages
Selecting Measurement Points
Analyze Your Database Operations
Evaluate Your Systems Data Logging Requirements
Revisit Your Service-Level Agreement
Capacity Planning Versus Scalability
Scalability and Diminishing Returns
Performance Tuning
Complication Is the Enemy of Scalability
Chapter Summary
Key Terms
16
Chapter Review
Chapter 20 The Future of the Cloud
How the Cloud Will Change Operating Systems
Location-Aware Applications
Intelligent Fabrics, Paints, and More
The Future of Cloud TV
Future of Cloud-Based Smart Devices
Cloud and Mobile
How HTML5 Will Drive Mobile Applications
Faster Time to Market for Software Applications
Home-Based Cloud Computing
Chapter Summary
Key Terms
Chapter Review
Glossary of Key Terms
Index
Credits
17
Preface
FOR YEARS, SOFTWARE DEVELOPERS and network administrators have used
the image of a cloud to represent the myriad of communication details that occur
as messages flow across the Internet from one computer network to another.
This cloud abstraction has now exploded to include processors, both physical
and virtual, data storage, software-as-a-service solutions, and mobile
applications. Today, cloud-based applications and new capabilities are emerging
daily and bringing with them lower cost of entry, pay-for-use processor and
data-storage models, greater scalability, improved performance, ease of
redundancy, and improved business continuity. With these advantages come
increased security challenges and IT-governance concerns. This book examines
these issues. As you will learn, two things are certain: The dynamic nature of the
cloud will continue and we have only just begun to scratch the clouds surface.
Chapter 1: Introducing Cloud Computing introduces the abstract nature of
cloud computing and the factors that led to its evolution. The chapter examines
software as a service (SaaS), platform as a service (PaaS), and infrastructure as a
service (IaaS) and includes real-world examples of each. The chapter discusses
the key advantages of cloud computing, including scalability, redundancy, low
cost of entry, and virtualization.
Chapter 2: Software as a Service (SaaS) examines browser-based SaaS
solutions and their advantages. The chapter features real-world solutions such as
SalesForce.com for customer relationship management, Taleo for human
resources solutions, ADT for SaaS-based payroll processing, and many others.
Chapter 3: Platform as a Service (PaaS) introduces cloud-based hardware and
software platforms which allow companies, large and small, to move their
applications to the cloud quickly and cost effectively. The chapter examines PaaS
providers such as Amazon, Google, and Microsoft.
Chapter 4: Infrastructure as a Service (IaaS) introduces the concept of a
cloud-based data center which reduces or eliminates a companys need for a
large in-house data center. Because of the IaaS providers economies of scale, it
can reduce a companys cost of IT operations significantly.
Chapter 5: Identity as a Service (IDaaS) examines cloud-based
identity-management solutions that simplify user provisioning and resource
18
access. With more solutions distributed across the cloud, IDaaS facilitates the
users sign-on process across solution providers.
Chapter 6: Data Storage in the Cloud examines the integration of cloud-based
data storage and the evolution of network-based storage, which led to its
creation. The chapter presents several cloud-based data storage solutions that
can be enabled at little or no cost. The chapter also examines several low-cost
turnkey based backup solutions.
Chapter 7: Collaboration in the Cloud looks at cloud-based technologies that
allow two or more users to work together to accomplish a task. The chapter
describes the evolution of collaboration technologies from instant messaging to
virtual meetings to shared documents that support simultaneous editing by
multiple users.
Chapter 8: Virtualization introduces hardware and software used to create the
perception that one or more entities exist, when they may not actually be
physically present. The chapter examines solutions for virtual servers, virtual
desktops, and virtual networks.
Chapter 9: Securing the Cloud examines the real-world security issues that
people (even some sophisticated IT users) are uncomfortable with when placing
their personal data, or their companys data, in the cloud. The chapter examines
specific security threats and the measures that should be taken to minimize
them.
Chapter 10: Disaster Recovery and Business Continuity and the Cloud
discusses ways that the cloud and its redundant resources improve a companys
ability to recover and continue to operate after a disaster or serious event. The
chapter examines common threats to business operations and some
cloud-computing solutions that can mitigate them.
Chapter 11: Service-Oriented Architecture looks at how the availability of
web-based services is changing how developers create programs and the speed
at which they can deploy solutions. The chapter examines a variety of real-world
web services that are available to programmers for integration into programs.
Chapter 12: Managing the Cloud examines the tasks a manager must perform
after a company migrates its applications to the cloud, including auditing logs,
19
monitoring system performance, and identifying bottlenecks within the data
flow.
Chapter 13: Migrating to the Cloud discusses managerial considerations to be
evaluated before migrating to the cloud, such as avoiding vendor lock-in,
identifying remote data backup operations and security considerations,
preparing a budget, and integrating developer and user training.
Chapter 14: Mobile Cloud Computing evaluates whether mobile computing is
driving the growth of cloud computing or vice versa. The chapter examines the
ecosystem that is mobile computing as well as how HTML5 will change
computing models.
Chapter 15: Governing the Cloud discusses the role of IT governance and its
extensions for cloud-based computing. The chapter examines the need for and
ways to implement cloud-based internal controls.
Chapter 16: Evaluating the Clouds Business Impact and Economics
examines how the clouds economy of scale and pay-for-use model will
accelerate the ability for companies, large and small, to release cloud-based
solutions. The chapter also evaluates the clouds impact on operational and
capital expenses.
Chapter 17: Designing Cloud-Based Solutions discusses the fact that
developers will simply pick up and move many existing applications to the cloud.
In the future, however, developers should design cloud-based solutions to utilize
scalability and redundancy. The chapter examines many common design
considerations and ways the cloud will impact them.
Chapter 18: Coding Cloud-Based Applications looks at two PaaS providers,
Google Apps and Windows Azure, and implements cloud-based applications with
each. Developers will learn that creating and deploying cloud-based applications
is fast, easy, and inexpensive.
Chapter 19: Application Scalability examines how developers can scale
applicationsvertically, by using faster processors or more powerful servers
and horizontally, by supporting the ability to distribute processing better. The
chapter looks at design considerations to be evaluated when designing
applications for scalability.
20
Chapter 20: The Future of the Cloud examines ways the cloud will extend its
reach into cars, televisions, appliances, and even our clothes. By the end of the
chapter, readers will realize that we have just scratched the clouds surface.
21
chapter 1
Introducing Cloud Computing
FOR YEARS DEVELOPERS AND network administrators have represented the
Internet within design documents as a cloud. By abstracting the Internets
technologies and underlying protocols as simply a cloud, as shown in FIGURE 1-1,
the developers could temporarily ignore the communication complexity and
simply assume that messages would flow successfully from one
Internet-connected network to another.
Learning Objectives
This chapter introduces cloud computing. By the time you finish this chapter, you
will be able to do the following:
Understand the abstract nature of cloud computing.
Describe evolutionary factors of computing that led to the cloud.
Describe virtualization at both the desktop and the server level.
Describe and identify common cloud types, which include software as a
service, platform as a service, and infrastructure as a service.
Know how businesses and individuals use the cloud.
Describe the benefits and disadvantages of cloud computing.
Understand common security considerations with respect to the cloud.
Describe ways cloud computing can improve system fault tolerance.
Describe Web 2.0 and its relationship to cloud computing.
Today the term cloud computing describes the abstraction of web-based
computers, resources, and services that system developers can utilize to
implement complex web-based systems. Often these cloud-based resources are
viewed as virtual, meaning that if a system or solution needs more resources,
such as processors or disk space, the resources can simply be added on demand
and usually transparently to the application that uses them. Through their virtual
nature, cloud-based solutions can be scaled up or down in size, and the
22
companies whose solutions reside in the clouds normally pay only for the
resources they consume. Thus, companies that once relied on expensive data
centers to house their processing resources can now shift their costs and
maintenance efforts to pay-as-you-go, scalable, cloud-based alternatives.
FIGURE 1-1 For years developers and network administrators have represented
the Internet as a cloud.
CASE 1-1 THE APPLE ICLOUD
Whether one is a PC user or a Mac evangelist, one must recognize Apples ability
to introduce technology that changes industries and the way people work and
communicate. Apples first entrée into the cloud was the iTunes virtual music
store. Today iTunes offers millions of songs for download to PCs and Macs, as
well as iPods, iPhones, iPads, and other handheld devices. More than just music
on a web-based storage device, iTunes laid a foundation for scalable e-commerce,
high-bandwidth download transactions, and user device independence.
Apples iCloud extends the companys existing functionality by providing users
with a cloud-based storage facility for their phones, music, videos, books, and
other documents. Using iCloud as a centralized virtual storage facility, users can
quickly exchange digital content among their various devices. In fact, users can
customize the iCloud settings to make the file exchange seamless and automatic.
In other words, if a user stores a digital file within iCloud, behind the scenes
iCloud software will push the content to each of the users registered devices, as
shown in FIGURE 1-2.
23
FIGURE 1-2 Using iCloud, users can synchronize their content to a variety of
devices.
Exercise What industries might iCloud disrupt? What business services do you
anticipate Apple to offer in order to drive revenue through the iCloud?
Web Resources For more information on iCloud, see
www.CloudBookContent.com/Chapter01/index.html.
Web 2.0 and the Cloud
For years, when companies wanted to place content on the web, they hired web
developers, who created the underlying HTML documents. Through this process,
the number of documents on the web exploded to billions worldwide. Web 2.0 is
a term used to describe the …
Purchase answer to see full
attachment
