IAAS Infrastructure as a Service Models

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Types of Cloud Service Modules Types of Cloud Computing

IAAS Infrastructure as a Service Models

IaaS provides the infrastructure such as virtual machines and other resources like virtual-machine disk image library, block and file-based storage, firewalls, load balancers, IP addresses, virtual local area networks etc. Infrastructure as service or IaaS is the basic layer in cloud computing model.

In SaaS, cloud providers host and manage the software application on a pay-as-you-go pricing model. Amazon(AWS) is a leading veandor in providing IaaS.

A service provider delivers software and applications through the internet. Users subscribe to the software and access it via the web or vendor APIs.

Infrastructure as a Service provides an environment for the developers to develop applications that the user can use. Iaas include

  • User create virtual machines(VMs) on demand
  • From a library of VM images
infrastructure as a service saas

Advantages of IaaS cloud Computing Layer

  • You can dynamically choose a CPU, memory and storage configuration as per your needs.
  • You easily access the vast computing power available on IaaS cloud platform.
  • IT infra will be handled by the IaaS cloud computing platform vendors.
  • You can eliminate the need of investment in rarely used IT hardware.

Disadvantages of IaaS cloud computing layer

  • IaaS cloud computing platform model is dependent on internet availability.
  • It is also dependent on the availability of virtualization services.
  • IaaS cloud computing platform can limit the user privacy and customization options.

Types of Cloud Service Modules Types of Cloud Computing

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Path variable is set for providing path for all Java tools like java, javac, javap, javah, jar, appletviewer which are used in java programming. All these tools are available in bin folders so we set path upto bin folders.

Classpath variable is set for providing a path for predefined Java classes which is used in our application. All classes are available in lib/rt.jar so we set classpath upto lib/rt.jar.

Cloud computing is the on demand availability of computer system resources, especially data storage and computing power, without direct active management by the user.

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