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Top 20 Cloud Computing Interview Questions and Answers

Hello guys, if you are preparing for Java developer interview or DevOps Engineer Interview, or a System admin, , knowledge of Cloud Computing is mandatory nowadays. It's even more important if you are interviewing for Cloud Engineer. Earlier, I have shared best Cloud Computing Courses and Books and today, I am going to share 20 Cloud Computing Questions for interviews. You can use these questions to revise essential Cloud Computing Concepts before interviews. If you are new to Cloud Computing space then these questions are also good to learn more about Cloud Computing by doing research.

As most of you must already know, cloud computing has recently emerged as a hotspot because of its easy usability. Cloud computing is not just limited to IT and software firms. It is used by companies across sectors like banking, retail, computing, education, and automobile. 

Many companies all over the world have begun using cloud computing for data storage and implementation. If you are looking to get into cloud computing, opportunities are limitless and the remunerations are high. 

But what you need to understand is that you need to have the right skill set and knowledge to land your dream cloud computing job. This will allow you to enter the wonderful world of cloud computing as well as grow as a professional. 

But first, you need to clear your interview. Don't worry, we have got your back. To help you, we have compiled some of the most important and popular cloud computing interview questions. Keep reading to find out more. 

20 Cloud Computing Interview Questions Answers for 1 to 2 years Experienced

Here are the frequently asked Cloud Computing Interview questions for both beginners and 2 years experienced intermediate professionals. 

1. What do you mean by Cloud Computing?

Cloud computing can be defined as a computing paradigm that allows data and applications to remain in cyberspace itself and allows customers to access their data through any device that is connected to the web. 

2. Tell us what Cloud is.

Cloud is basically a global network of servers. each of which performs a unique function. It is made up of hardware, networks, services, interfaces, and storage. All of these factors help in delivering computing as a service.

3. Explain different types of clouds.

Clouds can be divided into 3 types.
  • Private clouds are often used as web services and applications.
  • Public clouds are deployed and managed within a user's organization. 
  • Hybrid clouds are a combination of public and private clouds.

4. What are some of the advantages of cloud computing?

Cloud computing offers easy data backup and storage. It reduces the cost of managing and maintaining IT systems. It allows better productivity and efficiency in collaboration. Cloud computing gives you powerful server capability and scalability.

5. What are the different cloud architecture platforms?

The different platforms used by cloud architecture are Infrastructure as a Service, Platform as a Service, and Software as a Service.

6. Can you name the different layers of cloud architecture?

The different layers of cloud architecture are Cluster Controller, Storage Controller, Cloud Controller, Node Controller, and Walrus. 

7. What are some of the platforms used for large-scale cloud computing?

Apache Hadoop and MapReduce are two of the platforms used for large-scale cloud computing.

8. What are the different security aspects of the cloud?

There are 3 different security aspects that cloud computing offers. They are Identity Management, Access Control, Authentication, and Authorization. 

9. What do you know about API? Why is it used in cloud services?

API, or Application Programming Interface, is used for eliminating the workload and for writing fully-fledged programs. It eases application usage and links cloud services with other systems.

10. What is the importance of a virtualization platform?

A virtualization platform allows you to decouple hardware from software. It manages service level policies and the cloud operating system. It deploys cloud computing models like SaaS, PaaS, and IaaS.

11. What does EUCALYPTUS stand for?

EUCALYPTUS stands for Elastic Utility Computing Architecture For Linking Your Programs To Useful Systems. 

12. What is EUCALYPTUS used for?

EUCALYPTUS is basically an open-source software infrastructure. it helps in the implementation of clusters in the cloud computing platform. It can be used for building public, private, and hybrid clouds. It can create a data center into a private cloud. It allows you to utilize functionalities across other organizations. 

13. What are some of the open-source cloud computing databases?

Some of the most popular open-source cloud computing databases are MongoDB, CouchDB, and LucidDB. 

14. What are some of the biggest cloud providers and databases?

Some of the most popular cloud providers and databases are Amazon Web Services, SAP, EnterpriseDB, Garantia Data, Cloud SQL by Google, Azure by Microsoft, Rackspace, Google Bigtable, Amazon SimpleDB, and Cloud-based SQL.  

15. What are the different phases of cloud architecture?

The different phases of cloud architecture are Launch Phase, Monitor Phase, Shutdown Phase, and Cleanup Phase. 

16. What can you tell us about Memcached?

Memcached is a distributed memory caching system. It is open-source. It is a free system that allows you to improve the data response time by speeding up dynamic web applications. 

17. What are the uses of Memcached?

Memcached can be used for speeding up the application processes. It reduces page load time and cuts down the input/output access. It also establishes which elements to store.

18. What is the basic difference between Memcached and Memcache?

Memcache allows you to work through important object-oriented and procedural interfaces as well as reduce database load in dynamic web applications. In contrast, Memcached uses the libmemcached library to provide API for communicating with the Memcached servers. This is the latest API that alleviates database load.

19. What is the importance of load balancing?

Load balancing allows you to increase utilization and output. It lowers latency and cuts back on response time. It can also be used for avoiding system overload. 

20. What are the different types of virtualizations in cloud computing?

The different types of virtualizations in cloud computing are hardware virtualization, software virtualization, memory virtualization, data virtualization, storage virtualization, network virtualization, and desktop virtualization.

Bonus Questions

1. How can you secure data when it is being transported in the cloud?

Data can be secured while it is being transported in the cloud by implementing the encryption key. This helps in ensuring data security and avoids data leakage.

2. What do you mean by utility computing?

Utility computing is a model that allows users to pay only for the services that they are using. There are no upfront costs. It provides computing services and the required infrastructure and acts as a plug-in managed by the organization. 


There you have it. These questions are the most popular and important questions that you must check out before attending your interview. The questions in this article will definitely help you land your dream software job.

If you liked this list of the Top 20 Cloud Computing Interview Questions, feel free to share it with your friends and family. You can also drop a comment if you have any doubt regarding cloud computing and we will get back to you in an instant. 

Other Interview Questions you may like

Thanks for reading this article so far. If you find these Cloud Computing interview questions useful for your preparation and learning then please share it with your friends and colleagues, online and offline, on social media, and on emails.

If you have any suggestions or feedback, please drop a note. If you also struggle to find an answer to any of the questions, drop a note too.

P.S. - If you are new to Cloud Computing  and want to learn about Cloud then I highly recommend you checking out these free Cloud Computing Courses on Udemy. It's a great course to learn about Cloud Computing on AWS in 2022. 

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