Cloud Concepts Flashcards
Describe Cloud Concepts
Define Cloud Computing
Cloud computing is a model for enabling universal,
convenient, on-demand network access …
to a shared pool of configurable computing resources…
…that can be rapidly provisioned and released with
minimal management effort or service provider
interaction
NIST definition of cloud computing
Cloud computing is the delivery of
computing services over the internet
Expands the traditional IT offerings to include services like
Internet of Things (IoT)
Machine Learning (ML)
Artificial Intelligence (AI)
Enables organizations to quickly expand their compute
footprint without the need to build a datacenter
Benefits of
Cloud
Computing
Cloud is cost-effective,
global, secure, scalable,
elastic, and always current.
Allows orgs to transfer risk, operational
responsibility, and to focus on innovation
Describe
Public Cloud
Everything runs on your
cloud provider’s hardware.
Public Cloud Advantages include
scalability, agility, PAYG, no
maintenance, and low skills.
Use to skip building your own datacenter
Describe
Private Cloud
A cloud environment in your
own datacenter
Private Cloud Advantages include
Advantages include legacy
support, control, and compliance.
Use when you need more control
Describe
Hybrid Cloud
Combines public and private
clouds, allowing you to run your
apps in the right location
Hybrid Cloud Advantages include
Advantages include flexibility in
legacy, compliance, and
scalability scenarios
Define Economies
of Scale
The ability to do things more efficiently
or at a lower-cost per unit when
operating at a larger scale
What is Capital
Expenditure for Cloud computing
Capital Expenditure (CapEx) is the spending
of money on physical infrastructure up front.
Associated with legacy on-premises datacenter scenarios.
What is Operational
Expenditure for Cloud computing
Operational Expenditure (OpEx) is
spending money on services or products
now and being billed as you go.
Associated with public cloud consumption (pay-as-you-go)
What is Operational
Expenditure for Cloud computing
The cloud increases OpEx spending
and reduces CapEx spending
What is the Consumption based model
Pay for what you use, typically per unit
of time or capacity (per-minute, per-GB,
per-execution)
What is the Fixed price
model
You provision resources and pay for
those instances whether you use
them or not.
Ensures predictable costs for your cloud services
