20 Infrastructure as a Service Interview Questions and Answers

In an Infrastructure as a Service (IaaS) interview, you will be asked questions about your experience with designing, managing, and implementing IaaS solutions. The interviewer will want to know if you have the necessary skills and knowledge to successfully complete the job. To prepare for your interview, review these common IaaS interview questions and answers.

Infrastructure as a Service Interview Questions and Answers

Here are 20 commonly asked Infrastructure as a Service interview questions and answers to prepare you for your interview:

1. What is Infrastructure as a Service?

Infrastructure as a Service, or IaaS, is a type of cloud computing that delivers computer infrastructure—typically a platform virtualization environment—as a service. IaaS is designed to provide a scalable, pay-as-you-go service that can be quickly provisioned and released with minimal management effort or service provider interaction.

2. Can you give me some examples of IaaS providers?

Some popular IaaS providers include Amazon Web Services, Google Cloud Platform, and Microsoft Azure.

3. How do you think IaaS helps organizations in their digital transformation efforts?

IaaS provides organizations with the ability to quickly provision and scale IT resources as needed, which can be a major help in digital transformation efforts. By being able to quickly adapt to changing needs, organizations can avoid many of the pitfalls that can occur when trying to implement new digital technologies.

4. How does an organization benefit from using IaaS instead of owning its own physical infrastructure?

IaaS provides organizations with a number of benefits over owning and maintaining their own physical infrastructure. Perhaps most importantly, it can save a significant amount of money in terms of both upfront costs and ongoing maintenance and operations expenses. Additionally, IaaS can provide greater flexibility and scalability, as well as improved disaster recovery capabilities.

5. Is it possible to create a hybrid cloud environment with IaaS? If yes, then how?

Yes, it is possible to create a hybrid cloud environment with IaaS. This can be done by connecting two or more IaaS providers together, or by connecting an IaaS provider to an on-premises infrastructure. This allows organizations to use the best features of each environment to create a custom solution that meets their specific needs.

6. Why are many organizations moving away from private clouds and adopting public cloud services like IaaS?

There are many reasons why organizations are moving away from private clouds and adopting public cloud services like IaaS. One of the main reasons is that public cloud services are often more cost-effective than private clouds. Additionally, public cloud services are usually more scalable and offer more flexibility than private clouds.

7. In what situations can IaaS provide cost savings over managing your own data center?

IaaS can provide cost savings over managing your own data center in a number of situations. One common scenario is when an organization does not have the internal resources required to manage their data center effectively. In this case, IaaS can provide the organization with access to the expertise and resources required to manage their data center effectively, without incurring the cost of hiring and training internal staff.

Another common scenario is when an organization needs to scale their data center quickly to meet increased demand. In this case, IaaS can provide the organization with the ability to quickly provision additional resources, without incurring the cost of purchasing and configuring new hardware.

8. Do all IaaS offerings include network connectivity such as VPNs etc.?

No, not all IaaS offerings include network connectivity. Some IaaS providers may offer network connectivity as an add-on service, while others may not offer it at all. It is important to check with your IaaS provider to see what services are included in your package.

9. Which AWS service provides access to virtual machines that run on the same hardware used by Amazon’s EC2 instances?

The AWS service that provides access to virtual machines that run on the same hardware used by Amazon’s EC2 instances is called Amazon Elastic Compute Cloud (EC2).

10. What is the biggest difference between IaaS and PaaS?

The biggest difference between IaaS and PaaS is that IaaS provides you with the infrastructure to run your applications, while PaaS provides you with the platform to develop and run your applications. With IaaS, you are responsible for managing and configuring the underlying infrastructure, while with PaaS, the provider takes care of that for you.

11. What are some common use cases for IaaS?

IaaS can be used for a variety of purposes, but some of the most common use cases include hosting websites and web applications, storing data, and running business applications. IaaS can also be used for disaster recovery, as it provides a way to quickly provision new resources in the event of an outage.

12. When would you choose IaaS over SaaS or PaaS?

IaaS is usually chosen when an organization wants more control over its data and infrastructure than what is offered by SaaS or PaaS. IaaS can be more expensive than the other two options, but it can also be more flexible.

13. Can you explain the concept of multi-tenancy in today’s cloud computing environments?

Multi-tenancy is the ability of a cloud computing environment to support multiple users. Each user has their own “tenant” within the environment, which is isolated from the other tenants. This allows each user to have their own private space within the cloud environment, while still being able to share resources with other tenants.

14. What is the difference between Type 1 and Type 2 hypervisors?

Type 1 hypervisors are installed directly on the server hardware, while Type 2 hypervisors are installed on top of an operating system. Type 1 hypervisors are typically more efficient and offer better performance, while Type 2 hypervisors are more convenient and easier to set up.

15. Can you give me some examples of Type 1 and Type 2 hypervisors?

Type 1 hypervisors are typically used in enterprise environments and run directly on the host server’s hardware. Examples of Type 1 hypervisors include VMware ESXi, Microsoft Hyper-V, and Citrix XenServer. Type 2 hypervisors, on the other hand, are designed to run on top of a host operating system. Examples of Type 2 hypervisors include VMware Workstation, Oracle VM VirtualBox, and Microsoft Virtual PC.

16. How do you think the market share of IaaS will change in the next 5 years?

There is no one-size-fits-all answer to this question, as the market share of IaaS will vary depending on the specific industry and region. However, it is generally expected that the market share of IaaS will continue to grow in the next 5 years, as more and more businesses move to the cloud.

17. Can you explain what “serverless” means in context with Iaas?

Serverless is a term used to describe a type of IaaS architecture where there is no need for the customer to provision or manage any servers. Instead, all of the necessary infrastructure is managed by the provider. This can include things like storage, networking, and even some application logic.

18. What are the main components of IaaS?

The main components of IaaS are the servers, storage, and networking that make up the infrastructure of a cloud computing system. IaaS providers offer these resources on demand, so that users can access them as needed, and only pay for what they use. This makes IaaS a very flexible and scalable option for businesses that need to be able to quickly scale their infrastructure up or down as their needs change.

19. What do you understand about the term “hybrid IT”?

Hybrid IT is a term used to describe an IT infrastructure that is a mix of on-premises and cloud-based services. This can provide organizations with greater flexibility and scalability, as well as the ability to take advantage of the best features of both on-premises and cloud-based solutions.

20. What is the relationship between IaaS, PaaS, and SaaS?

IaaS, PaaS, and SaaS are all types of cloud computing. IaaS is the most basic type of cloud computing, where you simply rent access to a remote server. PaaS is a bit more advanced, and allows you to rent access to a remote server and also use that server to host applications. SaaS is the most advanced type of cloud computing, and allows you to rent access to a remote server and also use that server to host applications and data.