Cloud Computing at Singidunum University

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Benefits of SOA are:

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What is Virtualisation?

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How can you describe services in SOC?
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What is SOA? (Service-oriented architecture)

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What is SOC?

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What are the goals of CCOA?

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Explain benefits of SOA
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Which are the technologies used by SOA?

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What service providers and requestors do?

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Cloud vs. SOA

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What is SOAP?
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Types of virtualisation depending on the resources virtualized:

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Exemplary flashcards for Cloud Computing at the Singidunum University on StudySmarter:

Cloud Computing

Benefits of SOA are:
Reuse of services

Cloud Computing

What is Virtualisation?
It is the underlying core technology of cloud computing. Helps in creating multitenant model for the cloud enviroment by optimizing the resource usage through sharing.

Cloud Computing

How can you describe services in SOC?
They are autonomous and platform-independent entities, that can be described, published, discovered and coupled using protocols and specifications. Loosely coupled services can be used to create dynamic business processes and agile apps in heterog.computing platforms.

Cloud Computing

What is SOA? (Service-oriented architecture)
It is a flexible set of design principles and standards used for systems development and integration.

Cloud Computing

What is SOC?
Service-oriented computing paradigm that utilizes the services for the rapid and low-cost development of interoperable distributed apps in heterogeneous enviroments

Cloud Computing

What are the goals of CCOA?
To develop an arch.that is reusable and scalable-the arch.should incorporate any further changes without the need for replacing the entire arch.

Cloud Computing

Explain benefits of SOA

  • Reuse of services-Services can be reused by difderent apps=lower development and maintenance cost
  • Agility - ability to change business processes quickly when needed to support the change on bus.activities(using the configuration layer instead of redeveloping)
  • Monitoring helps to monitor the performance of services to make required changes
  • Extended reach-ability to get service of other processes to complete a particular task

Cloud Computing

Which are the technologies used by SOA?

  • Web services-can implement SOA. UDDI specification defines a way to publish and discover info about web services
  • SOAP-used to describe the communications protocol
  • RPC=Remote Procedural Call, protocol that helps a program to request a service from another program located in another computer in a network
  • RMI-IIOP denotes Java remote method invocation interface over Internet Inter-ORB Protocol. Used to deliver CORBA(common object request broker architecture) capabilities to java platform. Can be used to execute RPCs on another computer as defined by RMI.
  • REST=representational state transfer is a stateless arch.that runs over HTTP. Used for effective interactions betw clients and services.
  • DCOM=Distributed Component Object Model is a set of Microsoft concepts and program interfaces in which client program can request services from a server program eunning on other computers in a network.
  • WCF=Windows Communication Foundation provides a set of APISs in the .NET framework for building connected, seevice oriented apps.

Cloud Computing

What service providers and requestors do?
  • Service providersPublish the details of their services in the service registry using XML calleed Web Service Description Language(WSDL).
  • Service requestors find the suitable services from service registry using specifications such as UDDI(universal description,discovery and integration).
  • Service requestors and providers communicate using protocols such as SOAP

Cloud Computing

Cloud vs. SOA
SOA:
-provides set of services that can be used by service consumers for meeting their service requirements.
-used by enterprise apps
-service providers may offer services like financial, healthcare, manufacturing and HR services
CLOUD:
-service delivery model in which shared services and resources ate consumed by the users via Internet(on-demand basis)
-used for availong internet-based services
-offers insfrastructure components, like CPU, memory and storage
-provides development platforms for developing SWs,that offer their features through service oriented app programmong interfaces(APIs)
-programs running on cloud could be implemented using SOA technologies
-Cloud users can combine services offered by CSP with other public cloud services ti create SOA-based apps

Cloud Computing

What is SOAP?
Simple Object Access Protocol that allows a peogram or service running on ome platform to communicate with another program /service running on a different platform, using the HTTP and its XML as the mechanism for information excchange.

Cloud Computing

Types of virtualisation depending on the resources virtualized:
OS Virtualization

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Cost Accounting at

TU München

Computersysteme at

FernUniversität in Hagen

Computernetze at

Universität Bochum

IT Management & Cloud Computing at

FHNW - Fachhochschule Nordwestschweiz

Fundamentals of Computing at

University of Newcastle-upon-Tyne

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