Cloud Essay

This type of failure can only happen on a distributed system. An example of this is: in a distributed system, 1 computer sends a message to another computer either asking the computer if it’s responsive, requesting information from the computer, or replying back to the other computer that asked if it is responsive. This can cause problems when computer A sends computer B a message asking if it’s responsive, however the message never gets to computer B therefore computer B never responds and computer A assumes that computer B is down.

“Cloud computing may seem complicated, but it actually has way fewer issues than other infrastructures. Since the cloud runs on its own servers through a company whose only job is to make the cloud functional and bug-free, it’s usually a whole lot more reliable than your own, on-location server.” (Ismail, N, 2017)

Cloud computing allows a user to store and access data and programs over the internet instead on their computer hardware (Griffith, 2015). The user is then able to access from anywhere or any internet-enabled device. There are three categories of service in cloud computing: SaaS stands for Software as a Service; IaaS is Infrastructure as a Service; and PaaS is Platform as a Service. Until recently, most users stored and accessed their programs via their hard drive, also known as local storage. What began as an alternative delivery system is swiftly becoming a way for Enterprises to reduce their IT spending while still providing multiple applications to various users. If a service has the following

Answer: Generally speaking, cloud computing does not have the same issues that physical datacenters have when it comes to hardware failures, natural disasters, network failures, and human errors. Cloud providers have datacenters spread throughout the world which are highly available, highly reliable and provide load balancing (Han, 2011) However, backup plans should be made due to the lessons learned during storms in 2012 that shut down power to facilities in the Mid-Atlantic, disrupting cloud storage (Collier, 2012).

In using cloud computing, especially if for multiple applications, the entire service goes down a business could be without an entire series of applications necessary to their day to day function for however long it takes to get the system up and working. This, especially if utilized on a large scale, could cause massive issues.

According to Raphael, (2011) there have been some notable cloud outages in the past and InfoWorld discussed the "10 worst cloud outages." Number one on the list was when "Amazon Web Services goes poof." This occurred in April 2011 when a routine configuration change caused a problem at Amazon's Northern Virginia data center. The result, according to InfoWorld, was that the system went "totally nutso." A series of problems had spiraled out of control, eventually shutting down most of Amazon's data centers in the eastern United States. The outage lasted for four days, and while no data was lost, access was suspended. There were several other notable outages that virtually brought their business to a standstill.

In very short span of time, cloud computing has become integral part of everyone’s daily lives. It has been growing rapidly and has captured wide range of market. Cloud has given rise to new mobiles and tablets which run powerful applications. It maintains our friendship via those apps and stores our personal data. It has several of importance like:

Cloud computing has evolved with the passage of time and has revolutionized the entire ICT industry. Cloud computing is categorized into two forms Service oriented computing and Grid Computing. Service oriented Computing is an transpiring paradigm that has revamped the consumption of software and related product all around the globe. The core functionalities that service oriented computing provide is elements and that are independent of platforms and are programmed using standard protocols to support distributed computing across various organizations. [2]

The cloud computing, in comparison with personal computing, offers an extensive range of competencies. Cloud computing is defined in broader terms as “A large-scale distributed computing paradigm that is driven by economies of scale, in which a pool of abstracted, virtualized, dynamically-scalable, managed computing power, storage, platforms, and services are delivered on demand to external customers over the Internet.”12

3) Availability refers to the prevention and recovery from hardware and software errors and from malicious data access denials making the database system unavailable.”

Cloud computing can be defined as a model for enabling pervasive, convenient, on-demand network access provided to users to provide a shared pool of configurable computing resources. Networks, Storage, services, and applications make a part of these network sources. (Mell & Grance, 2011). In general terms, cloud computing can be stated as the process by which the users with the help of a web browser over the internet can remotely access data and program applications. A few characteristics of cloud computing are:

For cloud computing systems to function optimally, the individual components of the network of computing resources must function optimally. Thus, the importance of keeping track of the performance of these components is apparent. In addition to this, the providers of the cloud service need to

Availability is the maintenance of all the hardware and resources of our system and keeps them functioning correctly without subsidence, Availability is one of the characteristics of cloud computing, therefore, will focus on confidentiality and integrity.

“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.”

Cloud computing has quickly become a popular model where computing resources are made available on-demand to the user. The unique capabilities of cloud computing has created new opportunities for IT and businesses. Cloud computing uses the Internet for delivery of cloud storage capabilities as a service to any users. Through the use of cloud computing we can access virtually anything that we want from almost anywhere to almost any computer without worrying about anything such as management, cost, storage, etc. In this paper, we provide the reasons for the innovation of cloud computing, go over several cloud service and deployment models. It also explores the many benefits of cloud computing over the traditional service