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Questions and Answers
What is the primary function of a Cloud Services manager?
What is the primary function of a Cloud Services manager?
- To access software over the internet
- To provide a platform for software creation
- To provide cloud infrastructure services
- To manage the type of service accessed according to client requirements (correct)
What is SaaS an acronym for?
What is SaaS an acronym for?
- Software as a Service (correct)
- Service Application Solution
- Service as a Solution
- Software Application Solution
What is a characteristic of SaaS applications?
What is a characteristic of SaaS applications?
- They can only be accessed through a downloaded application
- They require frequent hardware updates
- Users are responsible for software updates
- Updates are applied automatically (correct)
What is PaaS similar to?
What is PaaS similar to?
What is a characteristic of PaaS?
What is a characteristic of PaaS?
What is IaaS responsible for managing?
What is IaaS responsible for managing?
What is a benefit of using PaaS?
What is a benefit of using PaaS?
What is an example of a PaaS?
What is an example of a PaaS?
What is a major advantage of cloud computing over traditional datacenter?
What is a major advantage of cloud computing over traditional datacenter?
What was the concept that emerged before cloud computing?
What was the concept that emerged before cloud computing?
Who suggested that computing can be sold like a utility in 1961?
Who suggested that computing can be sold like a utility in 1961?
What was the significant event in 1999 that contributed to the development of cloud computing?
What was the significant event in 1999 that contributed to the development of cloud computing?
What was the main concept behind the idea of utility computing?
What was the main concept behind the idea of utility computing?
What was the significance of 2002 in the history of cloud computing?
What was the significance of 2002 in the history of cloud computing?
What is a characteristic of distributed computing that contributed to the development of cloud computing?
What is a characteristic of distributed computing that contributed to the development of cloud computing?
What is a key benefit of cloud computing over traditional IT infrastructure?
What is a key benefit of cloud computing over traditional IT infrastructure?
What is the primary benefit of using a community cloud?
What is the primary benefit of using a community cloud?
What is a characteristic of a community cloud?
What is a characteristic of a community cloud?
What is a disadvantage of using a community cloud?
What is a disadvantage of using a community cloud?
What is an example of a community cloud?
What is an example of a community cloud?
What is a multi-cloud scenario?
What is a multi-cloud scenario?
What is the primary function of Azure Arc?
What is the primary function of Azure Arc?
What is a benefit of using a community cloud compared to a public cloud?
What is a benefit of using a community cloud compared to a public cloud?
What is a characteristic of a community cloud environment?
What is a characteristic of a community cloud environment?
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Study Notes
Cloud Services
- Cloud Services manages access to services according to client requirements
- Cloud computing offers three types of services: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
- Also known as cloud application services
- Runs directly through web browsers, eliminating the need for downloads and installations
- Characteristics:
- Managed from a central location
- Hosted on a remote server
- Accessible over the internet
- Users are not responsible for hardware and software updates
- Updates are applied automatically
- Purchased on a pay-as-per-use basis
- Examples: BigCommerce, Google Apps, Salesforce, Dropbox, ZenDesk, Cisco WebEx, Slack, and GoToMeeting
Platform as a Service (PaaS)
- Also known as cloud platform services
- Provides a platform for software creation
- Characteristics:
- Accessible to various users via the same development application
- Integrates with web services and databases
- Builds on virtualization technology for scalable resources
- Supports multiple languages and frameworks
- Provides an ability to "Auto-scale"
- Examples: AWS Elastic Beanstalk, Windows Azure, Heroku, Force.com, Google App Engine, Apache Stratos, Magento Commerce Cloud, and OpenShift
Infrastructure as a Service (IaaS)
- Also known as cloud infrastructure services
- Manages applications data, middleware, and runtime environments
- Owned, managed, and operated by one or more organizations in the community, a third party, or a combination of them
- Example: Health Care community cloud
Community Cloud
- Advantages:
- Cost-effective
- Suitable for organizations with collaborative cloud needs
- Provides better security than public cloud
- Offers collaborative and distributive environment
- Allows sharing of cloud resources, infrastructure, and capabilities among organizations
- Disadvantages:
- Not suitable for every organization
- Security features not as good as private cloud
- Not suitable for non-collaborative environments
- Fixed amount of data storage and bandwidth is shared among community members
Cloud Models
- Multi-cloud: uses multiple public cloud providers
- Azure Arc: a set of technologies to manage cloud environments
History of Cloud Computing
- Emerged from Client/Server computing and distributed computing
- Idea of computing as a utility proposed by John MacCharty in 1961
- Salesforce.com started delivering applications over the internet in 1999
- Amazon started Amazon Web Services in 2002, providing storage, computation, and human intelligence services
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