Benefits of Cloud Computing

Benefits of Cloud Computing

Describe Cloud Concepts (20%-25%)

Identify the benefits and considerations of using cloud services

• identify the benefits of cloud computing such as HA, Scalability, Elasticity

• identify the differences between Capital Expenditure (CapEx) and Operational Expenditure (OpEx)

• describe the consumption-based model

Describe the differences between categories of cloud services

• describe the shared responsibility model

• describe Infrastructure-as-a-Service (IaaS)

• describe Platform-as-a-Service (PaaS)

• describe Software-as-a-Service (SaaS)

• describe serverless computing

• identify a service type based on use case

Describe the differences between types of cloud computing

• define cloud computing

• describe Public cloud

• describe Private cloud

• describe Hybrid cloud

• compate and contrast the three types of cloud computing

Cost Benefits and Scaling

• Cost Savings - both real and accounting

• Agility

• Availability

• Security

• Global reach

• Range of ready on-demand services

• Range of tools

Cost Savings - Real

• Economies of Scale

• Total cost of ownership (TCO) - electricity, internet, cooling, employees

• MSFT can run a server cheaper than anyone else with a few exceptions

• 4 vCPU server - as low as $187/mo

You can take actions to reduce your costs - i.e Autoscaling

Global Reach

• It's not practical/possible for most businesses to run data centers in multiple countries

• Allows you to expand your applications to other regions of the world

• Reduced latency & Availability benefits

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High Availability

• Usually expressed as a percentage, it's the ability of a system to respond to users

Example: 99.99% (4 nines) = 4 minutes per month downtime

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Scalability

• The ability of a system to handle growth of users or work

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Elasticity

• The ability of a system to automatically grow and shrink based on application demand

Agility Benefits and Accounting

Agility

• The ability to change rapidly based on changes to market or environment

Most development servers are less then $1.00

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Disaster Recovery

• The ability of a system to recover from failure within a period of time, and how much data is lost

This is usually automatic, you are able to migrate your environment to another region

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Capital Expenditure (CapEx) and Operational Expenditure (OpEx)

• CapEx is money invested in assets (like computers) that return investments over time

• CapEx is the upfront money that you pay to hopefully bring a higher ROI

• OpEx is money spent every day on operation expenses

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Consumption-Based Model

• Pay per minute

• Pay per hour

• Pay per execution

• Pay per CPU utilization

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