THE CAP THEOREM’S BROAD REACH The CAP theorem has been highly influential within the cloud computing community, and is widely cited as a justification for building cloud services with weak consistency or assurance properties. CAP’s impact has been especially important in the first-tier settings on which we focus in this article. Many of today’s developers believe that CAP precludes consistency ...

Cloud computing is an on-demand computing model, which uses virtualization technology to provide cloud resources to users in the form of virtual machines through internet. Being an adaptable technology, cloud computing is an excellent alternative for organizations for forming their own private cloud. Since the resources are limited in these private clouds maximizing the utilization of resources...

Cloud computing is a new computing paradigm and it is gaining wide popularity due to its benefits including reduced cost, ease of management, and increased reliability. In a cloud computing environment, companies or individuals offload their computing (hardware/software/data) to the cloud, which is supported by the computing infrastructure called datacenters. Datacenters consume large amounts o...

Network forensics vis-a-vis cloud computing offerings can be leveraged to address the needs of enterprise-grade spyware solutions online. A modular, extensible cloud architecture with intrinsic support for efficient security monitoring is proposed and an implementation architecture which facilitates dynamic interface with OpenFlow hardware to create infinite flexibility in managing security dec...

Business disciplines expand rapidly, so does the tendency to rely on computer applications and its varying services to support such expansion. Often, this is achieved through introducing physical network infrastructures that provide the appropriate environments to run such applications. The required services change rapidly, and accordingly its resource requirements. In most cases, this may requ...

Cloud computing has recently received considerable attention, as a promising approach for delivering Information and Communication Technologies (ICT) services as a utility. In the process of providing these services it is necessary to improve the utilization of data centre resources which are operating in most dynamic workload environments. Datacenters are integral parts of cloud computing. In ...

Cloud computing is a new archetype that provides dynamic computing services to cloud users through the support of datacenters that employs the services of datacenter brokers which discover resources and assign them Virtually. The focus of this research is to efficiently optimize resource allocation in the cloud by exploiting the Max-Min scheduling algorithm and enhancing it to increase efficien...

Scientists and engineers often require huge amounts of computing power to execute their experiments. This work focuses on the federated Cloud model, where custom virtual machines (VM) are launched in appropriate hosts belonging to different providers to execute scientific experiments and minimize response time. Here, scheduling is performed at three levels. First, at the broker level, datacente...

OS virtualization and cloud computing have radically changed the way Internet services are deployed: enterprises share third-party datacenters, deploying existing applications with minimal changes. Recent measurements reveal a lack of traffic isolation capabilities within the datacenter with network performance exhibiting high variability. We advocate addressing this problem by allowing applica...