Cloud Interview Questions and Answers
Question - 1 : - What is a Cloud Technology?
Answer - 1 : -
A cloud is a combination of services, networks, hardware, storage, and interfaces that helps in delivering computing as a service. It broadly has three users. These are the end-user, business management user, and cloud service, provider. The end-user is the one who uses the services provided by the cloud. The responsibility of the data and the services provided by the cloud is taken by the business management user in the cloud. The one who takes care of or is responsible for the maintenance of the IT assets of the cloud is the cloud service provider. The cloud acts as a common center for its users to fulfill their computing needs.
Question - 2 : - What are some of the key features of Cloud Computing?
Answer - 2 : -
The following are some of the key features of cloud computing:
- Agility: Helps in quick and inexpensive re-provisioning of resources.
- Location Independence: This means that the resources can be accessed from everywhere.
- Multi-Tenancy: The resources are shared amongst a large group of users.
- Reliability: Resources and computation can be dependable for accessibility.
- Scalability: Dynamic provisioning of data helps in scaling.
Question - 3 : - What do you mean by cloud delivery models?
Answer - 3 : -
Cloud delivery models are models that represent the computing environments. These are as follows:
- Infrastructure as a Service (IaaS): Infrastructure as a Service (IaaS) is the delivery of services, including an operating system, storage, networking, and various utility software elements, on a request basis.
- Platform as a Service (PaaS): Platform as a Service (PaaS) is a mechanism for combining Infrastructure as a Service with an abstracted set of middleware services, software development, and deployment tools. These allow the organization to have a consistent way to create and deploy applications on a cloud or on-premises environment.
- Software as a Service (SaaS): Software as a Service (SaaS) is a business application created and hosted by a provider in a multi-tenant model.
- Function as a Service (FaaS): Function as a Service (FaaS) gives a platform for customers to build, manage and run app functionalities without the difficulty of maintaining infrastructure. One can thus achieve a "serverless" architecture.
Question - 4 : - What are the benefits of Cloud Computing?
Answer - 4 : -
Efficiency; Efficiency in business operations is achieved in the following ways through the utilization of cloud computing:
- Accessibility; Cloud computing facilitates the access of applications and data from any location worldwide and any device with an online connection.
- Cost savings; Cloud computing over businesses with scalable computing resources hence saving them on the worth of acquiring and maintaining them. These resources are purchased on a pay-as-you-go basis which suggests businesses pay just for the resources they use. This has proven to be less expensive than acquiring the resources independently.
- Security; Cloud providers, especially those private cloud services, have strived to implement the most straightforward security standards and procedures to guard clients’ data saved within the cloud.
- Disaster recovery; Cloud computing is the only efficient means for small, medium, and even large enterprises to back up and restore their data and applications quickly and safely.
- Flexibility and Increased collaboration; with cloud computing capabilities, individuals from different places can collaborate on business projects without necessarily having to satisfy.
Question - 5 : - What is the cloud?
Answer - 5 : -
The cloud comprises servers and a combination of networks, storage, service, and hardware that help companies save their money and convenience for users.
Cloud is essentially a series of servers that might be accessed through the web, and all one information is stored on physical servers in information centers. Intrinsically by cloud computing, we can access the physical servers and run computer code applications on their machines.
Cloud permits users to access the computing services from any device due to the computing and storage taking place on servers throughout a knowledge Centre instead of regionally on the user device.
Examples as cloud email suppliers like Gmail and Microsoft 365 with cloud storage suppliers like Dropbox or Google Drive. IT business has shifted to cloud computing intrinsically it removes the prices and burden of change and maintenance of servers, as the cloud seller can pay attention to this.
Question - 6 : - What are the different data types used in cloud computing?
Answer - 6 : -
The various cloud data types include – emails, text, Boolean, decimal, locale, number, date, images, contacts, etc. As we know that data is increasing day by day, so it is needed for new data types to store these new data. For example, if you want to store video, you need a new data type.
Question - 7 : - Which are the different layers that define cloud architecture?
Answer - 7 : -
The 4 layers of the Cloud :
Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Software as a Service (SaaS)
Function as a service (FaaS)
Question - 8 : - How will you describe Cloud Computing as concisely and simply to a Layman?
Answer - 8 : -
Even though this might sound like a fundamental question, this was asked in one of the interviews. (source- Quora)
Now, you must use simple words while answering this question. Use of technical terms is not advised. In cloud computing, ‘cloud’ refers to the internet metaphorically. So cloud computing is a method where the internet acts as the fuel to computing services, and you can now use the word- Internet-based computing.
Question - 9 : - Give the best example of open source Cloud Computing.
Answer - 9 : -
Open–source cloud is a cloud service or solution built using open–source software and technologies. This includes any public, private or hybrid cloud model providing SaaS, IaaS, PaaS, or XaaS built and operated entirely on open–source technologies.
The best example of open source Cloud Computing is OpenStack.
This is one of the most frequently asked cloud computing interview questions.
Cloud computing lets us store and access our applications or data over remote computers instead of our computer. First of all, the cloud is just a metaphor for technology. Cloud data centers might be anywhere globally; we can also access them from anywhere with an Internet-connected device. It has the following benefits as given below:
Pay-per-use model: We only have to pay for the services we use.
24/7 Availability: It is always online! There is no such time that you simply cannot use our cloud service; you’ll use it whenever you would like.
Easily Scalable: it’s effortless to proportion and down or turn off as per customers’ needs. For instance, if your website’s traffic increases only on Friday nights, you can opt for scaling up your servers that particular day and then scaling down for the rest of the week.
Security: Cloud computing offers excellent data security. Especially if the data is mission-critical, then that data can be wiped off from local drives and kept on the cloud only for your access to stop it from ending up in the wrong hands.
Easily Manageable: You only have to pay subscription fees; the Cloud Provider entirely maintains all maintenance, up-gradation, and delivery of services. This is backed by the Service-level Agreement (SLA).
Cloud Computing Examples
Further, various places where Cloud Computing is applied as given below:
Big Data Analytics: Cloud computing helps businesses store and analyze many structured, semi-structured, and unstructured data to find underlying relationships. It is used to analyze customer buying patterns and use them for marketing and advertising campaigns.
File Storage: the most important advantage of cloud storage is that it’s virtually unlimited. Cloud storage will be available for nearly an equivalent or maybe a lesser price, which is 10 times quite your local storage.
Backup: Backup generally requires a storage unit where the data is secure and infinite storage is provided. Both can be achieved by using Cloud Computing.
Question - 10 : - What are system integrators in cloud computing?
Answer - 10 : -
System Integrators emerged on the scene in 2006. System integration is the practice of bringing together system components into a whole and making sure that the system performs smoothly.