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Cloud computing has become an integral part of modern technology infrastructure, revolutionizing how businesses manage and deliver services over the Internet. Cloud computing refers to the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale. Here, we provide over 40+ Top Cloud Computing Interview Questions designed for individuals freshers or experienced professionals with 2, 4, and 10+ years of experience. Covering fundamental concepts, advanced topics, best practices, and real-world scenarios, this resource is your key to acing cloud computing interviews. ![]() Cloud Computing Interview Questions Join us as we explore these questions, unlocking the secrets that could land you that dream role. It can give you a competitive advantage and boost your chances of receiving a favorable response. This article provides you with the most frequently asked questions during the interview. Cloud Computing Interview QuestionsQ1. What is Cloud Technology?Cloud computing means storing and accessing the data and programs on remote servers that are hosted on the internet instead of the computer’s hard drive or local server. Cloud computing is also referred to as Internet-based computing, it is a technology where the resource is provided as a service through the Internet to the user. The data that is stored can be files, images, documents, or any other storable document. Q2. What are Cloud Delivery Models?A cloud delivery model is a specific, pre-packaged set of IT resources provided by a cloud provider. The most popular cloud delivery models that have been broadly accepted and formalized are:
Q3. Who are the major performers in Cloud Computing Architecture?Each performer is an object (a person or an organization) that contributes to a transaction or method and/or performs tasks in Cloud computing. There are five major actors defined in the NIST cloud computing reference architecture:
Q4. What are Microservices?Microservice is a small, loosely coupled distributed service. Microservice architecture evolved as a solution to the scalability, independently deployable, and innovation challenges with Monolithic architecture (Monolithic applications are typically huge – more than 100,000 lines of code). It allows you to take a large application and decompose or break it into easily manageable small components with narrowly defined responsibilities. Q5. Describe the Cloud Computing Architecture.The architecture of cloud computing is the combination of both SOA (Service Oriented Architecture) and EDA (Event Driven Architecture). Client infrastructure, application, service, runtime cloud, storage, infrastructure, management, and security are the components of cloud computing architecture. The cloud architecture is divided into 2 parts Frontend Backend Q6. What is Cloud Storage?In Cloud Computing, Cloud storage is a virtual locker where we can remotely stash any data. When we upload a file to a cloud-based server like Google Drive, OneDrive, or iCloud that file gets copied over the Internet into a data server that is cloud-based actual physical space where companies store files on multiple hard drives. Q7. What is Software as a Service(SaaS)?Software-as-a-Service (SaaS) is a way of delivering services and applications over the Internet. Instead of installing and maintaining software, we simply access it via the Internet, freeing ourselves from the complex software and hardware management. It removes the need to install and run applications on our computers or in the data centers eliminating the expenses of hardware and software maintenance. Q8. What is Edge Computing?Edge computing is a new computing paradigm that refers to a set of networks and devices located at or near the user. Edge processing brings data closer to where it is generated, allowing for faster and larger processing rates and volumes, resulting in more actionable answers in real-time. Q9. What’s the difference between Edge Computing and Cloud Computing?
Q10. What is API Gateway?An API Gateway is a key component in system design, particularly in microservices architectures and modern web applications. It serves as a centralized entry point for managing and routing requests from clients to the appropriate microservices or backend services within a system. Q11. What are cloud-native technologies?Cloud-Native can be described as an approach that builds Software Applications as Micro-services and runs as well as maintains them on a containerized platform to utilize the proper advantages of the cloud computing model., i.e., each organization will have to modernize its infrastructure, processes, and organizational structure while choosing the right cloud technologies as per their respective requirements and user’s total usage. Q12. What is Rate Limiting? Q13. What are Low-Density Data Centers?Low-Density Data Centers are optimized to give high performance. The space constraint is being removed and there is an increased density in these data centers. One drawback it has is that with high density the heat issue also creeps in. These data centers are quite suitable for developing the cloud infrastructure. Q14. What is Platform as a Servicea (PaaS)?Platform-as-an-service (PaaS) is a distributed computing model where an outsider supplier appropriates equipment and programming instruments to clients over the Internet. As a rule, these are required for application improvement. PaaS supplier has equipment and programming on its framework. Therefore, it liberates designers from introducing inside equipment and programming to create or run another application. Q15. What are the various types of Cloud Computing?Cloud computing is Internet-based computing in which a shared pool of resources is available over broad network access, these resources can be provisioned or released with minimum management efforts and service-provider interaction. There are 5 types of Clouds:
Q16. What is Eucalyptus in cloud computing?Eucalyptus is a Linux-based open-source software architecture for cloud computing and also a storage platform that implements Infrastructure a Service (IaaS). It provides quick and efficient computing services. Eucalyptus was designed to provide services compatible with Amazon’s EC2 cloud and Simple Storage Service(S3). Eucalyptus CLIs can handle Amazon Web Services and their private instances. Clients have the independence to transfer cases from Eucalyptus to Amazon Elastic Cloud. Q17. What’s the Difference Between a a A Cloud and Data Center?
Q18. What is on-demand functionality?Cloud computing provides on-demand access to virtualized IT resources. It can be used by the subscriber. It uses a shared pool to provide configurable resources. A shared pool contains networks, servers, storage, applications, and services. Q19. What is Container as a Service (CaaS)?Containers as a service (CaaS) is a cloud service model that allows users to upload, edit, start, stop, rate, and otherwise manage containers, applications, and collections. It enables these processes through tool-based virtualization, a programming interface (API), or a web portal interface. CaaS helps users create rich, secure, and fragmented applications through local or cloud data centers. Containers and collections are used as a service with this model and are installed in the cloud or data centres on the site. Q20. What are Containerized Data Centers?A containerized server room or data center is a shipping container designed to house IT equipment such as servers, storage devices, networking gear, uninterruptible power supplies, generators, and cooling equipment. You can also deploy separate containers for power and cooling equipment alongside a containerized data center. The container usually has built-in connectivity for accessing external power, water (for cooling purposes), and data. Q21. What is Mobile Cloud Computing?MCC stands for Mobile Cloud Computing which is defined as a combination of mobile computing, cloud computing, and wireless network that come up together purpose such as rich computational resources to mobile users, network operators, as well as to cloud computing providers. Mobile Cloud Computing is meant to make it possible for rich mobile applications to be executed on a different number of mobile devices. In this technology, data processing, and data storage happen outside of mobile devices. Q22. What is Hypervisor in cloud computing?A hypervisor is a form of virtualization software used in Cloud hosting to divide and allocate the resources on various pieces of hardware. The program which provides partitioning, isolation, or abstraction is called a virtualization hypervisor. The hypervisor is a hardware virtualization technique that allows multiple guest operating systems (OS) to run on a single host system at the same time. A hypervisor is sometimes also called a virtual machine manager(VMM). Q23. What is Virtualization in Cloud Computing?Virtualization is a technique how to separate a service from the underlying physical delivery of that service. It is the process of creating a virtual version of something like computer hardware. It was initially developed during the mainframe era. It involves using specialized software to create a virtual or software-created version of a computing resource rather than the actual version of the same resource. Q24. What’s the difference Between Public Cloud and Private Cloud ?
Q25. What is Multitenancy in Cloud computing?Multitenancy is a type of software architecture where a single software instance can serve multiple distinct user groups. It means that multiple customers of cloud vendor are using the same computing resources. As they are sharing the same computing resources but the data of each Cloud customer is kept totally separate and secure. It is very important concept of Cloud Computing. Q26. What is Server Virtualization?Enterprise owning data centre provide resources requested by customers as per their need. Data centers have all resources and on user request, particular amount of CPU, RAM, NIC and storage with preferred OS is provided to users. This concept of virtualization in which services are requested and provided over Internet is called Server Virtualization. To implement Server Virtualization, hypervisor is installed on server which manages and allocates host hardware requirements to each virtual machine. Q27. What is meant Resiliency in Cloud Computing?In cloud computing, resilience refers to a cloud system’s capacity to bounce back from setbacks and carry on operating normally. Hardware malfunctions, software flaws, and natural disasters are just a few examples of the different failures that a resilient cloud system can survive and recover from with little to no service interruption. Q28. What are the various Cloud infrastructure components?Different components of cloud infrastructure supports the computing requirements of a cloud computing model. Cloud infrastructure has number of key components but not limited to only server, software, network and storage devices.Various other components of cloud computing infrastructure are:
Q29. What’s the difference between IAAS, PAAS and SAAS?IAAS: Infrastructure As A Service (IAAS) is means of delivering computing infrastructure as on-demand services.
Q30. What are the Types of Cloud Computing Security Controls?There are 4 types of cloud computing security controls i.e.
Q31. What is Everything as a Service (XaaS)?Everything as a Service (XaaS) means anything can now be a service with the help of cloud computing and remote accessing. Where cloud computing technologies provide different kinds of services over the web networks. In Everything as a Service, various tools and technologies, and services are provided to users as a service. With XaaS, business is simplified as they have to pay for what they need. This Everything as a Service is also known as Anything as a Service. Q32. What is Resource Pooling Architecture in Cloud Computing?A resource pool is a group of resources that can be assigned to users. Resources of any kind, including computation, network, and storage, can be pooled. It adds an abstraction layer that enables uniform resource use and presentation. In cloud data centers, a sizable pool of physical resources is maintained and made available to consumers as virtual services. Q33. What is Scalability and Elasticity in Cloud Computing?Cloud Elasticity: Elasticity refers to the ability of a cloud to automatically expand or compress the infrastructural resources on a sudden up and down in the requirement so that the workload can be managed efficiently. This elasticity helps to minimize infrastructural costs. Cloud Scalability: Cloud scalability is used to handle the growing workload where good performance is also needed to work efficiently with software or applications. Scalability is commonly used where the persistent deployment of resources is required to handle the workload statically. Q34. What is Load Balancing?Load balancing is an essential technique used in cloud computing to optimize resource utilization and ensure that no single resource is overburdened with traffic. It is a process of distributing workloads across multiple computing resources, such as servers, virtual machines, or containers, to achieve better performance, availability, and scalability. Q35. What’s the difference between Cloud Servers and Dedicated Servers?
Q36. What is Grid Computing?Grid Computing can be defined as a network of computers working together to perform a task that would rather be difficult for a single machine. All machines on that network work under the same protocol to act as a virtual supercomputer. The task that they work on may include analyzing huge datasets or simulating situations that require high computing power. Computers on the network contribute resources like processing power and storage capacity to the network. Q37. What is Hypervisor Security in Cloud Computing?A Hypervisor is a layer of software that enables virtualization by creating and managing virtual machines (VMs). It acts as a bridge between the physical hardware and the virtualized environment. Each VM can run independently of one other because the hypervisor abstracts the underlying physical hardware and offers a virtual environment for each one. Hypervisor security refers to the measures taken to protect the hypervisor and the VMs it manages from potential security threats. Q38. What is Cloud Networking?Cloud Networking is service or science in which company’s networking procedure is hosted on public or private cloud. Cloud Computing is source manage in which more than one computing resources share identical platform and customers are additionally enabled to get entry to these resources to specific extent. Cloud networking in similar fashion shares networking however it gives greater superior features and network features in cloud with interconnected servers set up under cyberspace. Q39. What is Network Virtualization in Cloud Computing?Network Virtualization is a process of logically grouping physical networks and making them operate as single or multiple independent networks called Virtual Networks.Tools for Network Virtualization : Hypervisor Q40. What’s the difference between Cloud Computing and Virtualization?
ConclusionAs cloud computing continues to revolutionize businesses, mastering key concepts is essential for landing your dream cloud job. By understanding the different cloud service models (IaaS, PaaS, SaaS), security practices, and in-demand skills like serverless architecture, you’ll be well-prepared to tackle common interview questions and impress potential employers. Remember, showcasing your knowledge and enthusiasm for this ever-evolving field will put you ahead of the curve. Cloud Computing Interview Questions – FAQsWhat are the different types of cloud computing interview questions?
How can I best prepare for cloud computing interviews in 2024?
What are some of the most important soft skills for cloud computing roles?
Are there any specific certifications that can help me stand out in cloud computing interviews?
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Interview Preparation |
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