How are cloud users connected to their cloud resources?

Cloud computing is complex in nature with inconsistent and unpredictable requests for the shared resources by the numerous users. Resource management is one of the main challenges and it affects and varies based on performance, functionalities and cost. Cloud users connect to the cloud resources through the three cloud delivery models of Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS). The strategies vary in the three models and the providers receive fluctuating load requests that come as a challenge to their claims of elasticity and flexibility.

IaaS provides its users with computing resources like servers, networks, data center space and storage. The users pay only for the services they consume without the need of investing on purchase of hardware. The services are scalable at any given time to manage heavy workloads.

PaaS is a cloud environment that allows building and delivering cloud applications without the necessity of purchasing and maintaining the underlying software. PaaS allows faster deployment of applications without any difficulties.

SaaS is a cloud service where users connect to applications via internet on to their browsers. The applications are owned and managed by third party providers and offered on subscription basis. Data safety is assured even if the user computer has a breakdown.

The cloud services are available in three models of public cloud private cloud and hybrid cloud.

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