Cloud Computing Interview Questions
If you are looking for a technical career then you will surely experience some questions from Cloud Computing. So, to help you out today we will be discussing some of the Cloud Computing Questions at fundamental level.
Cloud Computing Interview Questions
Ques 1. Explain Cloud Computing?
Ans. Cloud computing is one of the popular technology which offers services like
- Servers
- Storage
- Databases
- Networking
- Software Analytics
- Intelligence over the Internet helps in faster development.
- It offers flexible resources and economies of scale.
Adopting Cloud Computing will help minimize the operational cost, running the environment more efficiently, and Scaling it up and down according to the requirements.
Ques 2. Explain the 5 Benefits of Cloud Computing?
Ans. Cloud Computing will eliminate the coastal expense, which includes purchasing costly hardware and software resources, setting them up, and managing them running at on-site data centers.
It offers easy scalability by offering the required amount of IT Resources and from the proper geographical location.
Cloud Computing will make difficult tasks like disaster recovery, business continuity more accessible and less expensive.
Also, Cloud Computing will offer a wide range of policy sets, technologies, and controls that will increase the security feature and protect the data, applications, and infrastructure from security threats.
It will eliminate the IT time-consuming jobs like Hardware setup, software patching. Thus it will help IT teams to focus on business.
Ques 3. What is Memcached?
Ans. Memcached is an open- source distributed memory stashing system. It’s a free system that helps to perfect the data response time by speeding up dynamic web usages.
One use of a memory cache is to speed up common datastore queries. Memcached is capable of handling cached materials within a few seconds and allows users to quickly manage the higher loads.
Ques 4. What are the various Data Types used in Cloud Computing?
Ans. In Cloud Computing, multiple data types are used, such as
- Emails
- Text
- Decimal
- Boolean
- Number
- Contacts
- Images
- Blogs and many more.
Ques 5. Explain what are the different modes of software as a service (SaaS)?
Ans. Single multi-tenancy : In Single Multi-Tenancy every user has its own resources which are different from other users. Thus it is considered as an efficient mode.
Fine grain multi-tenancy: In Fine grain Multi-Tenancy, the resources will be shared by multiple users but the functionality remains the same .
Ques 6. What are the methods to deploy Cloud Services?
Ans. There are three possible methods to deploy the Cloud Services.
- Public Cloud
- Private Cloud
- Hybrid Cloud
a. Public Cloud
Public Cloud is hosted and managed by a third-party cloud vendor. They will deliver their Computing resources such as servers and storage via the Internet.
b. Private Cloud
Private Cloud refers to Cloud Computing resources which an organization wholly owns. It can be only physically available on the on-site data center of an organization. Sometimes the organizations also pay third-party service providers to host their private Cloud.
c. Hybrid Cloud
Hybrid Cloud is the mixture, or we can say the combination of Public Cloud and private Cloud. It offers greater flexibility, more deployment options by allowing data and applications to communicate between the Public and Private Cloud. Hybrid Cloud also helps in optimizing the existing working infrastructure, security, and compliance.
Ques 7. Name some of the Big-Scale Cloud Computing Platforms?
Ans. The popular Big-Scale Cloud Computing Platforms are as follows:
- Apache Hadoop
- MapReduce
These two are the most commonly used Platforms for Big-Scale in Cloud Computing.
Ques 8. What are the primary uses of Cloud Computing?
Ans. Cloud Computing helps in developing Cloud-Native applications by using technologies and practices such as:
- Containers
- Kubernetes
- Microservices Architecture
- API-Driven Communication
- DevOps
Cloud Computing helps minimize the development cost and time, and with its infrastructure, resources can be easily scaled up and scaled-down.
Cloud computing secures the data more cost-effectively by moving them via the Internet to offsite cloud storage systems, which can be accessed from any location.
Users can use cloud services such as machine learning and artificial intelligence for more precise decisions.
Finally, it provides the latest version of software and updates to the users.
Ques 9. What is a cloud service?
Ans. Cloud service is employed to create cloud applications using the server during a network through the internet. It provides the power of using the cloud application without installing it on the pc. It also reduces the upkeep and support of the appliance which are developed using cloud service.
Ques 10. Define Infrastructure-as-a-Service (IaaS)?
Ans. IaaS makes use of the Pay-as-you-go model for IT Infrastructure resources, servers, VM, storage, networks, operating system from the cloud provider. It refers to a cloud computing service type that provides necessary Compute, storage, and networking resources.
IaaS deals with the complexities of deploying and maintaining the services provided by this layer. The term Infrastructure defines servers, storage and other hardware systems.
Ques 11. What is Platform-as-a-Service (PaaS)?
Ans. In Cloud Computing, Platform-as-a-Service (PaaS) is utilized to provide an on-demand environment for development, testing, and software management.
It is specially designed for developers to create websites or mobile applications without facing any difficulties in setting up or managing the required infrastructure.
Platform as a service or PAAS is a crucial layer in cloud computing. It provides an application platform for providers. In Cloud Computing the PaaS will take the responsibility for offering complete virtualization of the infrastructure layer and make it work sort of a single server.
Ques 12. Define Serverless Computing?
Ans. Serverless Computing focuses on building the application’s functionality without spending time on server management and infrastructure. The cloud vendor will take responsibility for controlling the setup, capacity, planning, and server management for the user.
Serverless Architectures are highly scalable and event-driven, and they only utilize the resources when a particular function or trigger takes place.
Ques 13. What do you understand by Software-as-a-Service (SaaS)?
Ans. SaaS is referred to as a process to deliver software applications via the Internet. It is on-demand and basically on a subscription basis. By adopting SaaS, Cloud vendors will take the responsibility to host and manage the software application infrastructure and will also upgrade the software, security patching.
Ques 14. What is the role of API in Cloud Services?
Ans. API stands for Application Programming Interface, which is utilized in the cloud platforms for easy implementation on the systems. It will help in eliminating the requirements of writing complete programs. Also, it provided the instructions for establishing communication between one or multiple applications. With the help of API, developers can quickly build applications and link them with cloud services and other machines.
Ques 15. Name the data centers deployed in Cloud Computing?
Ans. The Data Centers deployed in Cloud Computing are as follows:
A. Containerized Data Centers
It is used to describe traditional data centers that offer access to perform high-level customization with servers, mainframes and multiple resources.
B. Low-Density Data Centers
The following Data centers are optimized for offering high performance. Nevertheless, in this, the space constraint factor is removed, and as a result, it offers high density.
Ques 16. Is PaaS Important?
Ans. The answer is Yes. PaaS is a crucial layer in Cloud Computing Infrastructure. It is built on an infrastructure model used to provide resources such as computers, storage, and network. Also, this layer takes the responsibility to organize and operate the resources offered by the lower layer and offer Virtualization for the infrastructure layer, making it act as a single server.
Ques 17. What type of Resources does IaaS Offer?
Ans. IaaS offers Physical and Virtual resources for building a cloud. It has the capability to handle the issues regarding the Maintenance and service deployment available in this layer.
Ques 18. For transport in the cloud, how can you secure your data?
Ans. For securing the data while performing transportation we should check that there is no leakage with the encryption key. Also, we can use the VPN to maintain the security of the data while transporting the data in the Cloud environment. Because, a VPN will convert the public environment into your own private environment.
Ques 19. Define Eucalyptus in Cloud Computing?
Ans. In the world of Cloud Computing, the popular term Eucalyptus is referred to a paid and open-source computer application for building Amazon Web Service to get compatible with Private and Hybrid Cloud environments. It was developed by the company named Eucalyptus, and thus it got its name.
Ques 20. Provide the complete form of Eucalyptus?
Ans. The complete form of Eucalyptus is Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems.
Ques 21. Define System Integrators in Cloud Computing?
Ans. System Integrators are used to provide the planning or strategy of the complicated process which will further design the Cloud Platform. The Integrator here will offer access for building accurate hybrid and private center creation.
Ques 22. What is the difference between Memcache and Memcached?
Ans. The difference between Memcache and Memcached are as follows:
Memcache: It enables a user to figure through handy object-oriented and procedural interfaces and reduces database load in dynamic web applications.
Memcached: It uses libmemcached library to supply API for communicating with Memcached servers. It’s the newest API that alleviates database load.
Ques 23. What is Multi-Cloud?
Ans. Multicloud stands for utilizing multiple Computing and storage services in a single heterogeneous architecture. We can also say that Multi-Cloud is the distribution of cloud assets, software, and applications on multiple cloud-hosting environments. Multi-Cloud synchronizes between various vendors, and it is not compulsory to complete the computation process.
Ques 24. What is a Distributed Cloud?
Ans. The term Distributed Cloud stands for the distribution of Public Cloud services on physical locations. It can be for operation purposes, governance, updates, and service evolution. Location of the cloud services is the main component in Distributed Cloud.
Ques 25. Difference between Hybrid Cloud and Hybrid IT?
Ans. The term Hybrid Cloud means the mixture or combination built using Public Cloud and private Cloud. Nevertheless, by enabling data and applications for traveling between private and public clouds, the hybrid Cloud will offer greater flexibility and many deployment options. It also helps in optimizing the existing infrastructure, security, and compliance.
The term Hybrid IT also refers to a technique for enterprising Computing. Here the organization will take the responsibility to offer and manage some IT resources, but it will also use the cloud-based services for others. However, the hybrid technique authorizes the organization to maintain a centralized technique to IT Governance while testing on the Cloud Environment.
Ques 26. What are the key points to be considered before selecting the Cloud Provider?
Ans. The Cloud Vendor must have a decent track record of stability and hold a strong and healthy financial position. They must have risk management policies and a formal process for assessing the third-party service providers.
The vendor must assure the user of a basic level of service which they are comfortable with. They must maintain and provide the performance report and control access for tracking and monitoring the services.
The provider must have mechanisms for easy deployment, management, and upgrading of the software and applications. Also, they must make use of standard APIs and data transforms for establishing a connection in the Cloud.
Finally, there must be a comprehensive security infrastructure for all levels and varieties of Cloud services. The provider must also offer the policies and procedures and make sure that the client’s data is appropriately located and operational.
Ques 27. Mention in what ways cloud architecture provides automation and performance transparency?
Ans. For providing performance transparency and automation there are many tools employed by cloud architecture. It authorizes the users to manage the cloud architecture and helps in monitoring the reports.
It also allows them to share the appliance using the cloud architecture. Automation is one of the crucial components of cloud architecture which helps to develop the quality level.
Ques 28. In cloud computing what is the role of performance cloud?
Ans. Performance cloud is beneficial in transferring maximum amount of knowledge instantly. It’s employed by the professionals who work on high performance computing research.
Ques 29. In Cloud Computing, what are the optimizing strategies?
Ans. For controlling the upkeep cost and for optimizing the resources, there is a solution of three data centers in the cloud which provides recovery and back-up just in case of disaster or system failure and keeps all the info safe and intact.
Ques 30. What do you mean by OpenStack?
Ans. OpenStack stands for open-source cloud computing. It is considered as a popular element serving the IaaS layer. OpenStack has the responsibility to manage massive blocks of computing, storage, and networking resources. The user can all manage it with the help of APIs or a dashboard.
Conclusion
Thus, these are some of the Cloud Computing Interview Questions which will increase your possibilities to be successful in the Cloud Computing field. The interview questions of Cloud Computing are not exhaustive but you should prepare yourself with the fundamentals.