Podcast
Questions and Answers
What role does a cloud service consumer assume when accessing a cloud service?
What role does a cloud service consumer assume when accessing a cloud service?
- Permanent provider role
- Continuous monitoring role
- Temporary runtime role (correct)
- Sporadic maintenance role
What is the driving motivation behind cloud computing?
What is the driving motivation behind cloud computing?
- Prohibiting the use of messaging protocols
- Limiting access to IT resources through authentication
- Keeping IT resources encapsulated within organizations
- Providing IT resources as services for clients to use remotely (correct)
Which of the following is NOT a characteristic included in an SLA for cloud service usage?
Which of the following is NOT a characteristic included in an SLA for cloud service usage?
- Security characteristics
- Availability
- Uptime
- Web design preferences (correct)
In cloud service usage, what does SLA stand for?
In cloud service usage, what does SLA stand for?
What does cloud service aim to provide IT resources as?
What does cloud service aim to provide IT resources as?
Which category of cloud services emerges with the 'as-a-service' suffix?
Which category of cloud services emerges with the 'as-a-service' suffix?
What type of protocol is typically used to invoke the technical interface of a cloud service?
What type of protocol is typically used to invoke the technical interface of a cloud service?
Which of the following is a role that a cloud service can act as?
Which of the following is a role that a cloud service can act as?
What is one of the measurable characteristics provided in an SLA related to IT outcomes?
What is one of the measurable characteristics provided in an SLA related to IT outcomes?
What does QoS stand for in the context of cloud service SLAs?
What does QoS stand for in the context of cloud service SLAs?
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Study Notes
Origins and Influences
- Cloud computing has roots in utility computing, a concept proposed by computer scientist John McCarthy in 1961, suggesting future computing could resemble a public utility.
- In 1969, Leonard Kleinrock anticipated advanced computer networks, predicting the rise of "computer utilities."
- By the mid-1990s, Internet-based services like search engines (Yahoo!, Google) and email (Hotmail, Gmail) began to demonstrate early cloud computing concepts.
- Salesforce.com was a trailblazer in the late 1990s for remote service provision in business, particularly in Customer Relationship Management (CRM).
- The launch of Amazon Web Services (AWS) in 2002 marked a significant step, offering remote storage and computing resources to enterprises.
Evolution of Terminology
- The term "Network Cloud" was introduced in the early 1990s within the networking industry to describe data delivery across diverse networks.
- "Cloud computing" as a commercial term emerged in 2006, coinciding with Amazon's Elastic Compute Cloud (EC2) and Google Apps offering browser-based applications.
- Key developments in cloud computing technology included Google App Engine's launch in 2008-2009, bolstering cloud service offerings.
Definitions of Cloud Computing
- Gartner defined cloud computing as scalable and elastic IT-capabilities delivered as a service via Internet technologies, emphasizing scalability in operations.
- Forrester Research characterized it as a standardized IT service delivered through Internet technologies on a pay-per-use, self-service basis.
- The National Institute of Standards and Technology (NIST) provided a widely accepted definition, further formalizing the concept within the industry.
Basic Concepts and Terminology
- A "cloud" is a distinct IT environment intended for remote provisioning of scalable and measurable IT resources, symbolizing the decentralized nature of the Internet.
- An "IT resource" can be either software-based (like virtual servers) or hardware-based (such as physical servers).
- "On-premise" refers to IT resources hosted within an organizational boundary, distinguishing them from the cloud environment.
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