cloud computing Flashcards
the term cloud is used as a ____ for a set of resource infrastructures accessible over the internet
metaphor
on-demand availability for computer system resources, especially data storage and computing power, without direct active management by the user
cloud computing
cloud computing is a model of ____ rather than ___ resources
renting, buying
somewhere the “cloud” comes to “ground” there must be a physical place where the copmuting resources are made available
coming-to-ground
there are hella data centers, especially in
virginina
provider’s computing resources are pooled to serve multiple consumers. making more efficient use of hardware lessens the amount of hardware needed
resource pooling
multiple customers share the same application, running on the same operating system, on the same hardware, with the same data-storage mechanism (database)
multi-tenancy model
a group of users who share common access
tenant
allow resources on one computer ot be split into multiple virtual minicomputers (“many boxes in a box”) inside which many applications can be run separately.
Virtualization
allows you to run windows in your mac memory- your machine is now running two operating systems at the same time, but they are kept apart
parallels
customers generally have little or no control or knowledge over the exact location of the hardware supporting the provided resources
location independence
a consumer can unilaterally provision copmuting capabilities automatically without requiring human interaction with each service provider
on-demand self-service
rapidly and elastically provisioned to quickly scale up when needed
- rapidly released to quickly scale down if demand drops
scalability
providing transparency for both the provider and consumer of the utilized service
measured/ metered service
wherever there is a network, you have access
broad network access
what are some cloud computing benefits
-subscription
-increased efficiency
- rapid access
-scalability
-greener computing
what are cloud computing concerns
-security
-availability (higher risks in zones with weaker telecom infrastructure)
-lock in - interoperability among clouds is no t yet at a mature stage
-legal- government policies may not allow data to be stored abroad
provisioning cloud services and infrastrucutre requires a _____
set of technologies
the app you have open and interacting wtih is high-level but requires _________ in order to work
all the lower-level technologies
windows task manager monitors the local windows ____
runtime
consumers rent processing storage, networks, and other fundamental computing resources from the cloud provider
IaaS (Infrastrucutre as a Service):
manages the sharing of computers to maximize use, ensures networking/ security capability, and physical security
cloud provider of Iaas
consumers can deploy and run software of their ___
choice
What is Paas
platform as a service, builf on IaaS
