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Questions and Answers
What role does a cloud service consumer assume when accessing a cloud service?
What is the driving motivation behind cloud computing?
Which of the following is NOT a characteristic included in an SLA for cloud service usage?
In cloud service usage, what does SLA stand for?
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What does cloud service aim to provide IT resources as?
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Which category of cloud services emerges with the 'as-a-service' suffix?
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What type of protocol is typically used to invoke the technical interface of a cloud service?
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Which of the following is a role that a cloud service can act as?
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What is one of the measurable characteristics provided in an SLA related to IT outcomes?
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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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Description
Test your knowledge on the basic concepts, terminology, goals, benefits, risks, and challenges of cloud computing as outlined in Chapter 1 of the book 'Understanding Cloud Computing' by Dawit Mekonnen. Questions cover origins, influences, brief history, and definitions related to cloud computing.
