During flight in clouds, which of the following means is the best

Cloud computing means that you can store and gain access to data and software over the internet instead of having a connection to your hard Drive or solid state drive. This does sound extremely convenient, you can now Backup your photos or private data online on a private cloud and not worry About your hard drive crashing or about viruses.

Of course, cloud service provider companies spend a lot of Money on their storage hardware and also having a site for all the data Centres, in addition to maintaining them, they have to worry about temperature, Security, humidity, hardware obsoleteness, and many things.

The process of providing this service to people is called Cloud provisioning. There are many ways they can do that, a client can contact The service provider and the service provider prepares the appropriate Resources in advance of the start of the contract, and the clients are charged A fee on an annual or monthly basis, and this is called advance provisioning. Another example is pay-per-use where the service provider assigns resources as They are need to the client this is called dynamic provisioning. And finally, user self-provisioning where the user buys resources from the service provider Online and the resources are available within hours or less.

Mainly, there are three types of clouds (based on a cloud Location): Public, Private and Hybrid.

A Public cloud is based on service providers relying on the Internet to make applications, programs, or storage obtainable for the general Civic community, they can be free or payed for.

A private cloud means that a cloud network is only used by One company or individual, and is not accessible with anyone else. It also can Be stored onsite or offsite, but it is a lot cheaper to be stored offsite.

Where a Hybrid cloud means using both private and public Clouds, reliant on the company’s goals. For example, a private cloud can be Used to contact with people or clients and the databases will be stored through A private cloud.

Also, clouds can be classified based upon the service they Offer, the most known cloud service is offering storage and virtual servers, This is called Infrastructure-as-a-Service(IaaS).

Where if the cloud is offering a development platform like OS’s or databases, this is called Platform-as-a-Service (PaaS), some examples Are Microsoft Azure and Google App Engine.

Finally, Software-as-a-Service (SaaS) means that clients can Gain access to numerous software and applications on pay-per-use basis, instead Of buying these software and programs directly which is more expensive. Examples include Google Docs, Microsoft Word online.

There are many benefits of cloud computing, companies and Enterprises can provide applications to users and clients without worrying About costs of infrastructure or maintenance which gives them flexibility.

Clients can access data and programs from anywhere as long As they have an Internet connection. Also in case of a disaster or hardware Failure all data can be recovered from the cloud because they are backed up on More than one server.

But as any service that exist on the Internet, cloud Computing and services have challenges concerning security also. Cloud service Providers have to worry about protecting their hardware, what happens in case Of a failure or a disaster, how to authenticate the identity of the end user, And the security of data from outside attackers.

Overall the benefits of cloud computing outweigh the risks, The concept gave us a more convenient way of accessing data and made services Much easier delivered to us by helping organisations also.