Cyber Security

The cloud can provide swift access to malleable and low budget IT resources. With the use of cloud computing, you are not required to make big direct investments in hardware and spend a lot of time on managing that hardware and associated services. Cloud Computing compromises a comprehensive set of on-demand services, such as global computing, storage, database, analytics, application, and deployment services. These services will assist an organization move quicker, reduce IT costs, and scale systems. Cloud Computing has three key categories, they are usually referred to as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Mobile as a Service (MaaS) and Software as a Service (SaaS).

Cloud computing enables businesses to deploy or subscribe to services as it needs them. A cloud features self-service, broad network access, centralized shared resources, and measurement of service usage. There are three widely accepted types of cloud service models. They are Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Each serves a different purpose and business may choose to use just one, two, or even all three of the cloud types simultaneously as the needed.

Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service are the three cloud service models (Grance & Mell, 2011).

The principal deployment models of cloud computing include the Community Cloud, the Public Cloud, the Private Cloud, and the Hybrid Cloud (“Designing the Community”, 2011).

One section is referred to the public cloud in which it can be used as a pay as you go service (Armbrust et al., 2010). The private cloud is the second section. This is in reference to the enormous data centers in use by organizations and private businesses. These businesses will see the most benefit from using cloud technology. Furthermore, people involved in cloud computing can be organized into two groups as well; the cloud providers and the cloud user’s. The cloud user’s take resources from the cloud and utilize data storage. Cloud providers house the hardware or equipment for the cloud and also manage it.

Cloud computing has become a major topic of discussion and debate for any business or organization which relies on technology. Anyone connected to the Internet is probably using some type of cloud computing on a regular basis. Whether they are using Google’s Gmail, organizing photos on an Apple iPhone’s photo steam or searching the Web with Bing they are engaged in cloud computing. The interesting thing about cloud computing is it did not start as a technology for the business enterprise, but was driven by the public with services like Facebook. Over the last few years businesses have started to see the value of cloud computing causing it to become a major technology solution for businesses and organizations around the world.

As with any new trend in the IT world, enterprises must figure out the benefits and risks of cloud computing and the best way to use this technology. The buzz around cloud computing has reached a fever pitch. Some believe it is a disruptive trend representing the next stage in the evolution of

Different deployment models are designed to support a variation of consumers’ privacy requirements for cloud adoption. NIST defines cloud deployment models as public, private, community, and hybrid [6]. A cloud system can be operated in one of the following four deployment models:

In today’s economic world, the cost challenges are enormous for adoption of IT systems for any organizations or communities or society at large. These systems are important for the organization or community who manage critical real time applications and store confidential information or even sometimes subject to audits by regulatory authorities. The costs are sky rocketing and

The Cloud Computing refers to “Computing over the Internet”.It came from Grid,utility and web services.It is a combination of network,servers,storage ,operating system and virtualization technologies to form a shared infrastructure that enables web-based value added services.End users access cloud-based applications through a web browser or a light-weight desktop or mobile application.The business software and user 's data are stored on servers at a remote location. The cloud model comprises five

In section five, four types of clouds are discussed namely: Public cloud, Private cloud, Hybrid cloud and Community cloud based on security, ownership, usage, and deployment cost. Public Cloud infrastructure is publically accessible and is owned by the

Cloud computing deployment models represent the exact category of cloud environment and are mainly distinguished by the proprietorship, size and access. It tells about the purpose and the nature of the cloud. Most of the organizations are willing to implement cloud as it reduces the capital expenditure and controls operating cost. There are totally 4 commonly used deployment models discussed as below:

According to the US National Institute of Standards and Technology (NIST), cloud computing has a few standard characteristics. First, they provide on demand self-service, which means that their customers can manage, increase or decrease their server time or network storage on a need-to-need basis by themselves. Second, they provide ubiquitous network access, meaning that the resources can be accessed using standard internet devices, including mobiles. Also, the user does not know where the computing server is located. Another characteristic is rapid elasticity, meaning that the resources can be changed quickly and easily to meet user demand. The last characteristic is measured service, meaning that the customers are only charged for the amount of resources they use, no more and no less. (Laudon & Laudon, 2016)

Public cloud: Is an infrastructure that is open for use by the general public. This type of cloud is owned, managed and operated by a cloud service provider and runs on the provider 's

“Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model is composed of five essential characteristics, three service models, and four deployment models.”