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Home > Articles > Cloud Computing: Definition, Examples, Advantages, Disadvantages, Interview Questions
Updated on 02nd February, 2024 , 14 min read
Cloud Computing is a technology that helps the business to rent the IT Services. Cloud Computing is a ready made resource that allows the customer to use them online in spite of trusting upon the local infrastructure. There are various Cloud Computing courses that are offered in India in various institutes. One who is eager to learn about it should make sure to know about Cloud Computing basics. The institutes that offer this course are Chitkara University Institute of Engineering and Technology, Parul University, Silver Oak University, etc.
There are several Advantages of Cloud Computing including Great Storage Capacity, reliability, cost effectiveness, etc. Moreover, one who completes the course of Cloud Computing, he/ she will be able to get great jobs. The Cloud Computing job opportunities include Cloud Engineer, Cloud Architect, Cloud Consultant, DevOps Cloud Engineer, etc. Moreover, to know more about Cloud Computing, read the complete article below.
Read More: Types of Cloud Computing
The function of Cloud Computing is really simple. To work on this mechanism, one does not need anything major but a stable internet connection. However, if we see the working of this technology through the perspective of the cloud provider, then it seems to be really compound. The framework of the Computer Cloud involves two components, the frontend and the backend. Furthermore, the work of both of these components are:-
The Computing Cloud banks upon some things such as virtualization and automation. Furthermore, the explanation of the same can be found below:-
There are public and private clouds available. For a price, public cloud providers offer their services over the Internet. On the other hand, limited numbers of users can access private cloud services. These services consist of a networked infrastructure that offers hosted services. A blended option is also available, which includes aspects of both public and private services.
No matter the service type, cloud computing services provide users a number of benefits, such as:
Let's begin with a look at the various cloud deployment types. There are six choices such as:-
Now, let us understand each and every delivery model in detail:-
The resources of the private cloud are only accessible to a small number of users, who often all work for the same company. A private cloud can be operated in-house (at the business that employs the cloud) or in a third-party colocation facility. The owner of the private cloud must build and maintain the supporting infrastructure. The concept behind this architecture allows you to maintain hardware management and security measures in-house while still providing the same flexibility and convenience as other clouds.
The service provider owns and controls all hardware, software, and support infrastructure in a public cloud model. Over the internet, the provider provides end users with IT resources (servers, storage, etc.). Public cloud services are offered on demand by third parties, who often charge by the minute or hour of service use. Only the central processing unit cycles, storage, and bandwidth used by the consumer are charged.
A mix of bare metal and cloud computing is called Bare Metal Cloud (BMC). BMC offers direct access to bare metal hardware along with cloud computing's self-service features. Unlike other cloud computing solutions, BMC has no expense associated with virtualization while still offering cloud-native environments that can be installed in under two minutes. Bare Metal Cloud seeks to combine the freedom of cloud computing with all the advantages of bare metal resources. The Infrastructure as a Service (IaaS) concept is used to supply BMC.
A VPC user has exclusive access to a selected classification of a public cloud since it combines private and public services. In terms of cost and features, this model finds a compromise between private and public models. You use a secure connection (usually a VPN) to access a dedicated VPC segment, and you have access to more security features than a "vanilla" public cloud provides (custom firewalls, IP address whitelisting, etc.).
To establish a single IT environment, a hybrid cloud integrates several on-premises and cloud platforms (on-site hosting, colocation, public cloud, private cloud, etc.). There is a big focus on orchestra and automation features because all connected systems communicate with one another. A hybrid cloud has different obstacles to set up and is more difficult to set up than a private cloud. However, the effort is worthwhile because you can put every workload in a perfect IT environment (e.g., you run mission-critical workloads on a private cloud and use a public offering to handle workload bursts or spikes in demand).
A Localised Cloud, known as a "community cloud" supports a specific user group with similar concerns or objectives (e.g., the same mission, cybersecurity requirements, compliance rules, etc.). This concept can be used at a facility owned by a third party or on-site (at a single or shared tenant organisation). Generally speaking, a community cloud is not accessible to the general public, regardless of where the hosting occurs.
A multi-cloud environment is one where the user uses multiple cloud vendors rather than just one. A multi-cloud is a wise choice whether you want to reduce cloud disruptions or benefit from a certain provider's pricing. However, there are some particular security dangers, so make sure the team takes them into account before you start relying on several providers. You are able to decide which service provider offers the greatest options based on:
Each cloud computing service fits into one of the following four groups:
These categories are referred to as the "stack" by providers since they are stacked on top of one another.
With infrastructure as a service (IaaS), the customer purchases online access to unprocessed computing hardware. IaaS provides infrastructure parts like: that are typically operated in the provider's data centre.
IaaS also provides a variety of services to go along with these elements, like:
Backup and replication of data, as well as disaster recovery as a service. IaaS provides the most fundamental computing services, so a client company's internal IT team needs to be highly skilled in order to operate the system effectively.
In a cloud computing service called platform as a service (PaaS), consumers receive hardware and software tools from a provider. The majority of PaaS web-based development tools are accessed by end users through APIs, web portals, or gateway software. For instance, a client might create an e-commerce website and host its essential components on the cloud provider's server, such as the web design, the shopping cart, the checkout systems, etc. The PaaS vendor offers the following tools:
PaaS provides all the elements included in the IaaS package in addition to hosting and managing the middleware and operating systems a client needs to build and execute an app. This architecture also provides on-demand settings for the full software development lifecycle because PaaS facilitates quick development.
In a serverless computing model, the cloud-based infrastructure is provisioned, managed, and scaled by the provider. While event-based services (like AWS Lambda or Azure Functions) manage the execution, developers are free to concentrate on building code. Only the number of transactions that the function completes are charged for by clients. Similar to PaaS, all routine management is the provider's responsibility (OS updates and patches, security management, capacity planning, cloud monitoring, etc.). Serverless computing achieves the following when used properly:
However, the moniker is a little deceptive. Although server utilisation is not eliminated by serverless computing, the client's team is not involved in hardware. Serverless computing is sometimes compared to the NoOps movement because developers primarily concentrate on building apps and event-handling procedures.
Software as a Service (SaaS) describes how a whole application is run by a client in the cloud and made accessible to end users via the Internet by the provider. The most popular SaaS application is Google Documents. SaaS, the most general type of cloud computing, allows a client to focus solely on how the business and its customers utilise the software rather than how to provide or maintain it.
The following can be found as the Advantages of Cloud Computing:-
You can easily access a wide variety of technologies thanks to the cloud, which allows you to innovate more quickly and create almost anything you can think of. You may instantly set up resources as you require them, including Internet of Things, machine learning, data lakes, analytics, and infrastructure services like computation, storage, and databases. Technology services may be deployed quickly, allowing you to move from idea to implementation much more quickly than in the past. This allows you the flexibility to try new things, test new customer experience concepts, and reinvent your company.
With cloud computing, you can handle future peaks in business activity without having to over-provision resources now. As an alternative, you only provide the resources that you truly require. As your company's demands change, you may scale these resources up or down to immediately increase and decrease capacity.
With the cloud, you can swap out fixed costs (such data centres and physical servers) for variable costs and only pay for the IT you actually use. Additionally, because of the economies of scale, the variable costs are considerably cheaper than what you would spend to do it yourself.
With the cloud, you may quickly deploy globally and grow to new geographic areas. For instance, AWS offers infrastructure all over the world, allowing you to quickly deploy your application in several physical locations. Applications that are located nearer to end users have better connectivity and provide better user experiences.
Also Read - Characteristics of Cloud Computing
We all know how Cloud Computing helps one in making the work easier, but along with pros, everything comes with some cons too. So, following are some of the demerits of Cloud Computing that one should always keep in mind:-
Although starting up on the cloud is less expensive than building a server room inside the company, costs add up over time. You might reflect in a few years and discover that the entire DCO budget could have been used to build a private hosting facility.
Multi-cloud, hybrid, and private cloud architectures can be challenging to set up, secure, and administer. Before diving fully into an ambitious cloud project, be sure the internal team has the necessary skill sets.
Over time, you'll probably face vendor lock-in if you build up workloads at a third-party source. This issue makes switching vendors impossible without having an impact on the hosted app. Long periods of outage, software compatibility challenges, and expensive cloud migrations are common problems.
The cloud is owned and managed by the provider. If this faire strategy doesn't work for you, stay away (or set up a private cloud in your office).
When hosting data at a third-party location, it can be difficult to comply with industry-specific standards.
Although providers make significant investments in data security, cloud computing necessitates data sharing with a third party. There are new concerns because you don't have comprehensive insight or direct control over data storage.
Although the cloud can support any IT function, some use cases are more practical than others. The most popular cloud computing apps are listed below:
The field of cloud computing is one that is constantly changing. An summary of what to anticipate in the upcoming years is given below:
The following is the list of the Types of Cloud Computing:-
Listed below are a handful of the most well-known and frequently utilised cloud computing services:
Data security and platform security are major concerns because software and data are stored remotely in cloud computing. Measures made to safeguard digital assets and data housed on cloud-based services are referred to as cloud security. Two-factor authentication (2FA), the use of VPNs, security tokens, data encryption, and firewall services are just a few of the safeguards used to protect this data.
There are various renowned institutes that offer the courses of Cloud Computing. The same can be found below:-
Name of the institute | Annual Tuition Fees |
Chitkara University Institute of Engineering and Technology | INR 6.8 Lakhs |
Parul University | INR 1.48 - 3.44 Lakhs |
Chandigarh University | INR 2.04 - 9.08 Lakhs |
Vivekananda Global University | INR 1.8 - 5.8 Lakhs |
Silver Oak University | INR 3.22 Lakhs |
Galgotias University | INR 2.26 - 5.96 Lakhs |
Rathinam College of Arts and Science | NR 3 Lakhs |
K R Mangalam University | INR 2.35 Lakhs |
After pursuing the course of Cloud Computing, one has a scope of various job opportunities in the future like:-
Cloud Computing Jobs | Cloud Computing Salary |
Cloud Engineer | INR 5.4 Lakhs |
Cloud Architect | INR 9.0 to 39.5 Lakhs |
Cloud Consultant | INR 4.8 to 25.0 Lakhs |
DevOps Cloud Engineer | INR 4.3 to 17.2 Lakhs |
Cloud Infrastructure Engineer | INR 4.1 to 18.5 Lakhs |
Cloud Security Engineer | INR 3.7 to 26.0 Lakhs |
Data Engineer | INR 3.2 to 21.0 Lakhs |
Full Stack Developer | INR 2.4 to 17.0 Lakhs |
Cloud System Administrator | INR 3.3 to 16.0 Lakhs |
UI Developer | INR 2.0 to 10.5 Lakhs |
The below mentioned are the Cloud Computing Interview Questions:-
Q. What is Cloud Computing?
Ans. A modern computer technique that uses the internet is called cloud computing. The next generation of technology makes advantage of the cloud to deliver services whenever and wherever the user requires them. It offers a way to connect to several servers located all over the world.
Q. What are the benefits of Cloud Computing?
Ans. The Cloud Computing advantages are:-
Q. Which are the different layers defining Cloud Architecture?
Ans. CLC or Cloud Controller, Walrus, Cluster Controller, SC or Storage Controller, and NC or Node Controller.
Q. What is the meaning of software as a service?
Ans. SaaS, or software as a service, is a crucial component of cloud computing. Like Google, it offers cloud apps. It makes it easier for users to produce and store documents to the cloud.
Q. What are the platforms used for large scale cloud computing?
Ans. Apache Hadoop and MapReduce
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By - Nikita Parmar 2024-09-06 10:59:22 , 6 min readAns. Today, both organisations and people employ a variety of cloud computing applications. Streaming platforms for audio or video, where the actual media files are kept remotely, are one type of cloud service. Platforms for data storage like Google Drive, Dropbox, OneDrive, or Box would be an additional option.
Ans. Private, public, hybrid, and multiclouds are the four basic subtypes of cloud computing. Infrastructure-as-a-Service (IaaS), platforms-as-a-service (PaaS), and software-as-a-service (SaaS) are the three primary categories of cloud computing services.
Ans. Public clouds, private clouds, and hybrid clouds are the three basic varieties of clouds. Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS), and Serverless Computing are the four primary services offered within these deployment paradigms.
Ans. Google Docs, Microsoft 365. Skype, WhatsApp, Zoom, are the examples of Cloud Computing.
Ans. The advantages of Cloud Computing are Great Storage Capacity, Reliability, Cost Effective, Collaboration, Auto-updating software, etc.
Ans. The disadvantages of Cloud Computing are that you never actually own the tools, clouds are complicated, limited control, etc.