A CLOUD CAST

 

What Is Cloud Computing?

                       Cloud Computing is an On-Demand infrastructure that provides computing resources such as servers, storage, databases, and so on. Essentially, it is the provision of IT services on-demand through the internet at a reasonable cost. Instead of purchasing, owning, and maintaining physical data centres and servers, you can use a cloud provider to access technology resources such as processing power, storage, and databases on an as-needed basis.

Who Is Using Cloud Computing ? 

                    The cloud is being used by organisations of all sizes and industries for a variety of purposes, including data backup, disaster recovery, email, virtual workspaces, programming development and training, big data investigation, and client-facing web applications. Medical care providers, for example, are turning to the cloud to help patients receive more personalised treatments. The cloud is being used by financial administrations organisations to monitor constant extortion detection and counteraction. Additionally, computer game developers are using the cloud to deliver internet games to a large number of players all over the world. Furthermore, presently a days, peoles are utilizing cloud for their own utilization like back ups and information stockpiling as they are very much associated through a web in nowadays.

                                                                                                                           

Public Cloud :-

                        The public cloud is available to anyone who wants to store and access data or information over the internet using a pay-per-use model. The cloud service provider manages and operates computing services in the public cloud (CSP).

Amazon elastic compute cloud (EC2), IBM SmartCloud enterprise, Microsoft, and others are examples.

      Public cloud has its own set of advantages, such as being less expensive than private and hybrid clouds, and requiring no maintenance because it is managed by the provider. Since it offers simplicity and relies on the internet, public cloud is also easier to incorporate and location independent. This function makes it easy to use and scalable.

      Often, since services are accessible publicly on the internet, it is less reliable and is dependent on internet speed, and the client who uses public cloud has no power because it is maintained by the provider.                        

Private Cloud :-

                        Private cloud is also known as internal cloud or corporate cloud. Organizations use it to create and run their own data centres on their own. Many of the benefits of public cloud computing, such as self-service, scalability, and elasticity, are available with the added control and customization available from dedicated resources over a computing infrastructure hosted on premises with private cloud computing. So based on location private cloud is divided into two types as:

1.  on premisis private cloud
2.  outsoursed private cloud

      The private cloud offers a high level of security and enhanced efficiency with improved speed, as well as allowing the IT team to respond to our demands quickly. As a result, the private cloud is ideal for businesses who need their own personal cloud and place a high emphasis on data security.

      Keep in mind that the private cloud is not ideal for organisations with a large user base, as well as those that lack pre-built infrastructure and adequate manpower to support and manage the cloud, as cloud services require qualified people to operate. The disadvantage of a private cloud is that it is only available inside the business, so the area of operations is limited.

Hybrid Cloud :-

                        Hybrid cloud is a combination of public and private clouds; we may define it as "public cloud + private cloud."

A hybrid cloud is a solution that incorporates a private cloud with one or more public cloud services, with proprietary software that allows each service to communicate with each other.

      A hybrid cloud approach gives companies more flexibility by allowing them to move workloads between cloud solutions as their needs and costs change.AWS and Microsoft Azure, for example.

      Hybrid cloud is a fantastic way to reduce danger. Organizations that need more protection than the public cloud use it. Since it is a hybrid of private and public cloud, it is partially secure, delivers products and services more efficiently, and provides the flexibility that any enterprise requires.

The reliability of services in a hybrid cloud is determined by the cloud service provider. Furthermore, managing the Hybrid cloud is challenging due to the difficulty of managing many implementation models.

Community Cloud :-

                        A Community Cloud is a multitenant network reserved for a limited number of customers. The dedicated IBM SoftLayer cloud for Federal Agencies in the United States is one of the best examples of group cloud. The term "community cloud" refers to a shared cloud computing service environment aimed at a small number of organisations.

      Since it is used by many organisations, the community cloud is cost effective. It offers a collaborative and distributive environment in which cloud services can be shared. It has a higher level of protection than the public cloud.

Types Of Cloud Computing Services

There are three types of cloud computing service models:-

      - Infrastructure as a Service (IaaS)

      - Platform as a Service (PaaS)

      - Software as a Service (SaaS)

1. Infrastructure as a Service(IaaS):-

                        The basic building blocks of cloud computing are included in IaaS. It usually gives users access to network systems, computers (virtual or dedicated hardware), and data storage. IaaS allows you to have the most flexibility and control over your IT resources. It's quite close to current IT tools that many IT departments and developers are already familiar with.

      Example : Amazon Web Services, Linode, DigitalOcean, Microsoft Azure, and Cisco Metacloud.

2. Platform as a Service (PaaS) :-

                        PaaS eliminates the need for you to handle underlying infrastructure (typically hardware and operating systems), allowing you to concentrate on application deployment and management. This allows you to be more productive because you won't have to think about resource sourcing, power planning, software maintenance, patching, or any of the other undifferentiated heavy lifting that comes with running your app.

      Example: AWS elastic beanstalk, Windows Azure, Heroku, Force.com, etc...

3. Software as a service (SaaS) :-

                        SaaS gives you a fully functional product that is handled and maintained by the service provider. Most of the time, when people talk about SaaS, they're talking about end-user applications (such as web-based email). You don't have to worry about how the service is maintained or how the underlying infrastructure is operated when you use a SaaS offering. All you have to do now is consider how you'll use the app.

      Example: BigCommerce, Google Apps, Salesforce, Dropbox, etc

Uses of cloud computing

Create cloud native applications :-

                        Build, deploy, and scale web, mobile, and API applications quickly. Containers, Kubernetes, microservices architecture, API-driven communication, and DevOps are examples of cloud-native technologies and approaches.

Test and build applications :-

                        Use cloud infrastructures that can quickly be scaled up or down to reduce application development costs and time.

Data storage, backup, and recovery :-

                         Transferring your data over the Internet to an offsite cloud storage system that is available from every location and computer is a more cost-effective way to protect your data on a large scale.

Analyze the data :-

                         In the cloud, unify the data through teams, branches, and places. Then, using cloud services like machine learning and artificial intelligence, you will discover knowledge that will help you make better decisions.

Audio and video can be streamed :-

                         With high-definition video and audio that is distributed globally, you can connect with your audience anywhere, at any time, on any device.

Integrate intelligence :-

                         Use intelligent models to help consumers engage and gain useful insights from the data collected.

Providing on-demand apps :-

                         On-demand apps, also known as software as a service (SaaS), allows you to provide consumers with the most up-to-date software versions and upgrades at any time and from any place.

Data Security And Privacy In Cloud Computing 

                        In the field of information technology, data protection has always been a major concern. It becomes even more serious in the cloud computing world because data is stored in many locations, even around the globe. Users' key concerns about cloud technologies revolve around data security and privacy protection. Data security and privacy protection are becoming more relevant for the potential advancement of cloud computing technology in government, industry, and business, despite the fact that many techniques on cloud computing topics have been studied in both academics and industries. Data security and privacy protection issues are relevant to both hardware and software in the cloud architecture.

      The foremost issues in cloud data security include data privacy, data protection, data availability, data location, and secure transmission. The security challenges in the cloud include threats, data loss, service disruption, outside malicious attacks, and multitenancy issues.

Data security and privacy includes the following points :-

Data integrity :-

                        Generally, data integrity means protecting data from unauthorized deletion, modification, or fabrication. Managing entity's admittance and rights to specific enterprise resources ensures that valuable data and services are not abused, misappropriated, or stolen.

Data confidelity :-

                         When storing private or sensitive data in the cloud, data security is important. To ensure data security, authentication and access control strategies are employed. Cloud storage problems such as data security, authentication, and access control may be solved by improving cloud stability and trustworthiness.

Data availability :-

                         The issue of storing data over the transboarder servers is a serious concern of clients because the cloud vendors are governed by the local laws and, therefore, the cloud clients should be cognizant of those laws. Moreover, the cloud service provider should ensure the data security, particularly data confidentiality and integrity. 

Data privacy :-

                         When users access sensitive data in the cloud, privacy ensures that cloud providers can prevent a possible adversary from inferring the user's actions based on the user's visit model (not direct data leakage).

      The privacy issues differ according to different cloud scenarios and can be divided into four subcategories as follows:

1. How to give users power over their data as it's stored and processed in the cloud to prevent hacking, nefarious usage, and unauthorised resale
2. How to ensure data replications in a jurisdiction and consistent state, where replicating user data to several suitable locations is a common option, thus avoiding data loss, leakage, and unauthorised modification
3. Who is in charge of ensuring the legal standards for personal information are met?
4. How active are cloud subcontractors in production that can be properly identified, checked, and ascertained.

Future scope :

Scope of Cloud Computing As a Career:-

                        Cloud computing has a big future. According to a survey, India's cloud computing market is worth $2 billion and is projected to expand at a 30 percent annual pace. The cloud computing industry in India is expected to cross $4 billion by 2020, creating more than a million jobs.

      According to a survey, roles specific to this domain are in high demand, including Cloud Infrastructure Engineer, Cloud Architect, Cloud Enterprise Architect, and Cloud Software Engineer.

Roles specific to this domain, such as Cloud Infrastructure Engineer, Cloud Architect, Cloud Enterprise Architect, and Cloud Software Engineer, are in massive demand according to a report.

 Cloud Computing Income in India :-

                        A salary in the cloud computing sector for an entry-level role starts at 5 lakh per year and rises to 7 lakh per year. When you gain experience as a cloud computing professional, you'll be able to earn more. Senior cloud professionals with more than 15 years of experience earn more than one crore per year, while mid-level managers earn up to 20 lakh per year.

      In this sector, as well, there is a severe shortage of talent. According to the same survey, there are more than 1.7 million cloud job openings worldwide due to a lack of eligible candidates. Just about 1% of those who apply have the necessary qualifications to work as a cloud professional.

      In simple words, you can learn the necessary skills and become a highly in-demand professional through cloud computing.