What is Cloud Computing?

Cloud computing, or the use of hosted services (software, server, database, storage and networking) over the Internet. Ever since the advent of cloud computing, the world has watched as the explosion of cloud-based applications and services continued to proliferate across the IT landscape. Almost all the apps we use are based in the cloud, which helps us reduce our storage space, money, and time. In this article, we talk about the types of cloud computing and 10 trends that one needs to look out for.

Cloud computing is a term used for hosted services over the internet, including data storage, servers, databases, networking, and software from their provider. What Cloud Storage Explained: Cloud storage simply means to store data on physical servers that is maintained by a cloud service provider. Cloud computing is a concept in which computer system resources, including data storage and computing power, are provided on-demand and without direct management by the user.

A user can save files on cloud rather than on a storage device or hard drive, thereby enabling access to the files from anywhere, provided he has access to the web. The hosts on cloud can essentially categorized into these types: infrastructure-as-a-service (IaaS), platform-as-a-service (PaaS) and software-as-a-service (SaaS). Depending on the deployment model, cloud can also be categorized into public, private, and hybrid cloud.

Types of Cloud Computing

Cloud computing can be categorized as per the deployment model or based on the type of service. Cloud can be categorized as public, private, and hybrid cloud depending upon the given deployment model. In addition to this, and according to the service provided by the cloud model, it can be categorized as infrastructure-as-a-service (IaaS), platform-as-a service (PaaS), and software-as-a-service (SaaS).

1. Private Cloud

A private cloud is where the computing services are we will provision over a private IT network and are used exclusively by one organization. Private Cloudprivate cloud, also called internal, enterprise, or corporate cloud, is typically administered through internal resources and is not open to outsiders in the organization. The private cloud combines the self-service, scale and elastic resources of public cloud with additional control, security and customizations. The increased level of data security is provided behind company firewalls, as private cloud hosting takes place internally, so nobody has access to sensitive information other than the organization itself.

2. Public Cloud

Things such as public cloud are computing services available over the internet from third-party providers. Public cloud provides services to anyone who wants to use or purchase them, unlike private cloud. These services may be free, or be sold the way pay-per-view television is sold, so that users only pay on-demand for the CPU cycles, storage and/or bandwidth space they use.

Public clouds can help in saving costs for businesses to purchase, manage, and maintain the on premise infrastructure as the cloud service provider manages the system. It also has scalable RAM, even flexible bandwidth, which makes it easy for businesses to scale its storage needs.

3. Hybrid Cloud

Hybrid cloud uses some aspects of both public and private cloud. Best of both worlds cloud model will give you the ability to move workloads between private and public clouds as the computational and cost factors will evolve. Revenue Computing: With hybrid cloud, when demand for the computing and processing fluctuates, companies can expand their on-premises infrastructure up to the public cloud to manage the overflow but also ensure that no third-party data centers have access to their data.

In a hybrid cloud model, businesses only pay for resources used temporarily rather than having to purchase and maintain resources that may go unused for a long time. Simply put, just like a public cloud, a hybrid cloud gives you a chance to get all the benefits but with none of the security risks of a public cloud. The cloud can classify into IaaS (Infrastructure-as-a-Service), PaaS (Platform-as-a-Service), SaaS (Software-as-a-Service) depending on the service model. Here’s a look at each of them.

4. Infrastructure as a Service

Infrastructure as a service – or IaaS – is a form of cloud computing in which a service provider is charged with delivering servers, storage and networking through a virtual interface. In this service, the user does not manage the cloud infrastructure but controls the storage, operating systems, and deployed applications.

All the hardware, software, servers, storage, and other infrastructure components are hosted by a third-party vendor instead of the user. The vendor also provides hosting for the user’s applications and a backup.

5. Platform as a service (PaaS)

Platform as a service or PaaS is, platform as a service (Paas) is a set of software and services in the cloud that allows users to develop, run and manage applications without the complexity of building and maintaining the infrastructure associated with developing and launching the app. It offers users tools to create cloud-based applications. The user buys the resources from the vendor on a pay-as-you-go basis and can use it over a secure connection in this type of service.

6. Software as a service (SaaS)

SaaS or software as a service provides access to a vendor’s software as a service on a subscription basis. With this cloud computing model, users do not need to install or download applications on their local devices. Instead, the applications are hosted on a remote cloud network that is directly accessed via the web or an API.

Benefits for the Enterprises

One of the main reasons cloud computing has grown rapidly is the benefits it brings. It does save businesses the resource and time to establish a complete physical IT infrastructure. Let’s consider all the cloud benefits:

1. Lower Costs

To maintain IT systems incurs huge capital outlays typically, one area in which cloud helps mitigate. IT applications can be served by the business of its IT resources without incurring huge infrastructure costs, hence lowering its overall cost using the resources of the Internet cloud service provider. The cloud providers operate on the pay-as-you-go model, where businesses pay only for what they use, that cuts down cost even more.

2. Scalability

With the help of the cloud, organizations can scale up their users from just a handful to thousands within a matter of days. Depending on the need, a business can upscale or downscale their storage needs, which gives flexibility to the organizations.

3. Business Continuity

The cloud securely saves and protects your data if an emergency or outage occurs. This simplifies how you can get back to work once systems are working again.

4. Lower Total Cost of Ownership (TCO)

Cloud handles the IT infrastructure maintenance, licensing of software, or training personnel to manage your data. So it provides an upper hand over your competitors because the time and resources you put into it are very little.

Challenges for Enterprises

Now, let us look at few disadvantages of cloud computing.

1. Matching security risk

Remember there is risk when storing your data on cloud, even though cloud service providers tell and proudly state that they follow the best security standards and industry certifications.

2. Downtime

Outages rank near the top of every cloud user’s list of cloud computing kingdoms. Sometimes cloud service providers can become overwhelmed given the massive number of customers they service every day. This can result in technical downtimes, for which your apps may be down for a short period of time.

3. Dependent on Internet Connections

The user cannot access the data are cloud without good internet connection and a suitable device. Additionally, if you do not implement proper security protocols, accessing your files through public Wi-Fi could be risky.

4. Cost

Cloud service providers follow a pay-as-you-go price plan. Most subscription plans require businesses to make a monthly or annual budgetary commitment, however. They have to take this into account in their operating expenses.

5. Security Risks

No matter how much your cloud service provider ensures you that they have the best security certifications on them, there’s always scope for losing data. As hackers target cloud storage to access critical business data, this may also be a greater concern that needs proper working measures.

6. Poor Control

The infrastructure is owned by a third-party cloud service provider, which means that a user can have little control. The user would manage applications but nothing of the backend infrastructure.

Top Cloud Computing Trends

Cloud computing is a mature and fast-growing global market. It was worth $321 billion Opens a new window in the year 2019 (considering all types of cloud and service models) and is projected to grow to $1025.9 billion in seven years.

1. Companies will spend more on public clouds

The public cloud is the easiest to access, with the least resistance to entry for small businesses, startups, and independent professionals. Gartner estimates that the public cloud market will grow at a rate of 18.4% (approximately $304.9 billion) in 2021, driven by this trend.

2. Preventing downtime concerns with multi-cloud and hybrid cloud

There have been some major cloud outages over 2020 and 2021 affecting some of the world’s biggest providers. Some of Azure’s North American customers experienced a six-hour outage in March 2020 after the failure of a cooling system.

3. Container Technologies Will Gradually Increase in Popularity

Containers provide an isolated virtual environment to develop and run applications, irrespective of the parent hosting environment (on premise servers, cloud, or hybrid). In effect, it gives companies the ability to create miniature, distinct clouds inside their own infrastructure so they can upgrade their development OPs.

Cloud Computing Certification Exams

Cloud computing is an enormous subject with many certification exams from multiple vendors. These exams allow people to validate their knowledge of cloud services, security and deployment. Each provider and each specialization could have a number of cloud computing exams to be certified. There are over 30 cloud computing certification exams. Here are five of the most popular cloud computing certification exams that students will not want to miss out:

1. AWS Certifications (Amazon Web Services)

AWS is a top cloud provider with several certs:

• AWS Cloud Practitioner Associate Level
• AWS Certified Solutions Architect (Associate & Professional)
• AWS Certified DevOps Engineer AWS Certified Security – Specialty
• AWS Certified Machine Learning – Specialty

2. All Microsoft Azure Certifications

Microsoft Azure is a cloud computing services and has a variety of exams:

• Microsoft Certified: Azure Fundamentals
• Microsoft Certified: Azure Administrator Associate
• Microsoft Certified: Azure Security Engineer Associate

3. GCP (Google Cloud Platform) Certifications

There are several certifications provided by Google Cloud:

• Associate Cloud Engineer
• Professional Cloud Architect
• Professional Data Engineer
• Professional Cloud Developer

4. Other Cloud Certifications

In addition to the major cloud providers, there are other organizations that provide cloud-related certifications:

• CompTIA Cloud+
• Cisco CCNA Cloud
• VMware Certified Professional – Cloud Management and Automation (VCP-CMA)
• IBM Certified Solution Architect – Cloud

Cloud Computing Certifications to Boost Your Career

As technology evolves, businesses are introducing innovations like cloud computing to transform the digital world for themselves and their end users. If you are an IT professional or someone who has just begun his/her career, putting your efforts to gain expertise in Cloud Computing can offer you high-paying Cloud Computing Jobs. With the demand for skilled cloud experts on the rise, there has never been a better time to enhance your career.

CertsHouse is a well-known platform that provides exam questions and study materials specially designed for Cloud Computing Exams that are recognized all around the world. Get started now, and take advantage of unlimited opportunities through cloud computing. Be in demand as a cloud professional today and invest in your future!