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Computer-aided teaching of practical subjects in engineering education poses new challenges. Computers have to be configured to support the particular requirements of each subject. Virtual environments allow the building of a virtual machine (VM) tailored to the requirements of each subject, allowing flexible, versatile, and low-cost laboratory configurations. However, the use of multiple VM at a...
Recently, Network Function Virtualization (NFV) has been getting the attention for reason of operational efficiency, cost savings and service scalability. The NFV can be described as integrating an independent software on the general purposed hardware such as server and switch in order to replace the legacy hardware-based network device. Therefore, NFV can help ensure that carriers can quickly respond...
Independent validation of experimental results in the field of parallel and distributed systems research is a challenging task, mainly due to changes and differences in software and hardware in computational environments. In particular, when an experiment runs on different hardware than the one where it originally executed, predicting the differences in results is difficult. In this paper, we introduce...
As the course of computer operating system requires students to understand the interactions between computer systems, users and hardware platform, this paper concentrates on the problem of using the virtualization technology in computer operating system teaching. Particularly, virtualization technology is designed to simulate the real computer hardware environment, and then make the operating system...
Data center is a place where data and applications placed and run. Those data and applications saved various server based on function of application run such as server of database, proxy, portal, website, application, mikrotic and so on. The more vary application run, the more server types needed. There are several implications when data center encounter “server flood”, including more electrical energy...
There is an increased trend in information insecurity, online fraud and social engineering activities today as a result of high dependence on the Internet and social networks for communication, advertisement of products and services, etc. Malwares are most times, deliberately programmed as worms to appear as flash messages, online games, gift awards and in many other attractive forms for the user...
The installation and configuration of cloud infrastructures in physical computer is a complex and arduous process whereas the installation of a cloud infrastructure in virtual machines exposes a significant number of performance issues. To overcome such limitations, this paper proposes an hybrid Virtual-Physical deployment for the OpenStack cloud management platform, where some of its management services...
We have developed very new and innovative technology, but what is the use of that technology if it is harming our environment. The development of technology is not a major concern but producing, using it in a green way would definitely be worth. In a recent time green computing has gained major importance due to increased CO2 Emissions. This paper includes major issue of green computing & how...
Parallelism is the concept that associates with executing a problem by multi-computer. This concept is used for increasing multitasks performance execution effectively. Many algorithms, techniques, architectures, frameworks, and environments are found to enhance this concept and finally enhance the performance. However, two basic environments already exist to be used by parallelism; these two environments...
Due to the popularity of cloud computing and the increase of cloud-service requests, the demand for building better cloud infrastructure is huge. However, many services that need to be provided by a cloud infrastructure are not currently available. Efficient power consumption is an example. On the other hand, the usage of some cloud services is low. But their servers keep online and working, causing...
Cloud computing is a new computing paradigm, which utilizes dissipated resource benefits and supports resource sharing and time access flexibility. In addition, cloud provides different kinds of services mapped to users needs such as Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a service (IaaS). There are two different types of cloud implementations: commercial...
The computer-based education is the most popular teaching method in universities. Maintaining an all-purpose experiment environment based on physical computers is hard because different courses need different environments. Meanwhile, hardware-related experiment is suffering from the restriction of equipment location. This paper presents a work in progress on the development of a cloud-based experiment...
This paper addresses the performance and service comparison of two different Cloud Computing platforms: Amazon AWS and Microsoft Azure. Platforms are tested in similar virtual environments, namely for micro instances. Performance is measured by the collection benchmark program called Phoronix Test Suite 3, and the results are presented for Apache and Dbench benchmarks.
As the field of determined and increasingly sophisticated adversaries multiplies, the risk to integrity of deployed computing devices magnifies. Given the ubiquitous connectivity, substantial storage, and accessibility, the increased reliance on computer platforms make them a significant target for attackers. Over the past decade, malware has transitioned from attacking a single program to subverting...
With the increasing of software complexity in computing systems, more and more powerful mainframe computing systems begin to use Xen virtualization technology to split the system into several parts, making system maintenance much easier and more targeted while obtaining better operating efficiency. But precisely because of these different system parts running in different Xen-virtualized domains,...
Virtualization finds wide application in information and communication technology. Some of these applications can be used in education, to simplify the administration and teaching performance while saving money. In the last few years, computer technology has progressed sufficiently thus facilitate the development of virtual machines that provide a completely new method of using computers and their...
The long-dreamed vision of “computing as a utility” has finally taken shape in the form of cloud computing. This paradigm shift is the biggest buzz in today's computer world. It can be thought of an evolution of existing technologies rather than a revolution. The basic requirements of cloud are to meet the various needs of enterprise organizations such as scalability, adaptability, extensibility and...
In response to a continually advancing threat incurred by untrusted codes from Internet, various virtualization-based technologies have been proposed. Such technologies utilize a software layer, a virtual machine monitor or hyper visor, to achieve the highest privilege in a computer system. Generally, they construct isolated execution environments to run the untrusted code while shielding the other...
The rapid increasing of variety and quantity of business brings about serious challenge to the server resources of datacenters. It is difficult for the traditional solution of server running and management to tackle with the changing need of services. The physical server sprawl leads to shortage of computer rack and room space. Meanwhile, the energy consuming increases, so do the difficulty of the...
The latest talk in IT industry is about server virtualization. Virtualization increase server utilization rates. Along with this, it lets you consolidate multiple operating systems and applications as per physical server and deploy new applications in minutes. The benefits in utilization, energy savings, manageability, service levels and cost models can be dramatic. If we come to concept of actual...
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