20 Cloud Migration Interview Questions and Answers

Cloud Migration is the process of moving data, applications, or other business assets from an on-premises environment to a cloud computing platform. With the increasing popularity of cloud computing, more and more businesses are looking to migrate their data and applications to the cloud. As a result, demand for cloud migration experts is on the rise.

If you’re looking to break into the cloud migration field, it’s important to be prepared for your job interview. In this article, we’ll review some of the most common cloud migration interview questions and how you can answer them.

Cloud Migration Interview Questions and Answers

Here are 20 commonly asked Cloud Migration interview questions and answers to prepare you for your interview:

1. What is a cloud migration?

A cloud migration is the process of moving data, applications, or other business components from an on-premises environment to the cloud. This can be done for a variety of reasons, such as to improve scalability, reduce costs, or increase flexibility.

2. What are some of the main reasons why companies migrate to the cloud?

There are many reasons why companies might choose to migrate to the cloud, but some of the most common reasons include wanting to improve scalability or flexibility, wanting to reduce costs, or wanting to improve security or disaster recovery capabilities.

3. Do you think it’s possible to automate all cloud migrations? If yes, what would be your approach?

While it may be possible to automate all cloud migrations, I think it would be difficult to do so. There are so many different potential scenarios that could come up during a cloud migration that it would be hard to account for all of them in an automated process. My approach would be to start with the most common and basic scenarios and try to automate those. Then, as more and more scenarios are encountered, we can slowly add them to the automation process.

4. How do you select which applications should be migrated first when moving from on-premise infrastructure to the cloud?

There are a few key factors to consider when deciding which applications to migrate first:
-The dependencies of the application – if the application has many dependencies, it may be more complex to migrate and may be better to migrate simpler applications first.
-The size of the application – larger applications may take longer to migrate and may be better to migrate in smaller chunks.
-The importance of the application – mission-critical applications may need to be migrated first in order to avoid downtime.

5. Why do you think security and compliance policies change during cloud migration?

One of the main reasons for this is that when you move to the cloud, you are no longer in complete control of your data. This means that you need to rely on the security measures of your cloud provider, which may not be as stringent as your own. Additionally, the way data is stored and accessed in the cloud is often different than on-premises, which can require changes to compliance policies.

6. What are the different types of cloud computing services offered by AWS?

AWS offers a variety of cloud computing services, including:

– Amazon Elastic Compute Cloud (EC2): A cloud computing service that provides resizable compute capacity in the cloud.

– Amazon Simple Storage Service (S3): An object storage service that offers industry-leading scalability, data availability, security, and performance.

– Amazon Relational Database Service (RDS): A managed relational database service that makes it easy to set up, operate, and scale a relational database in the cloud.

– Amazon DynamoDB: A fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale.

7. Can you explain how Amazon Elastic Compute Cloud (EC2) works?

Amazon EC2 is a cloud-based web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment. Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use. Amazon EC2 provides developers the tools to build failure resilient applications and isolate them from common failure scenarios.

8. What is an AMI in context with AWS EC2?

An AMI is an Amazon Machine Image, and is essentially a template used to launch an EC2 instance. An AMI will include all the necessary information to launch an instance, including the operating system, any applications installed, and any associated configuration settings.

9. What does EBS stand for in the context with AWS EC2?

EBS stands for Elastic Block Store. It is a service that provides persistent block-level storage volumes for use with Amazon EC2 instances.

10. What are the different types of storage options available with Microsoft Azure?

The different types of storage options available with Microsoft Azure are:

– Blob storage: stores unstructured data such as text, images, and videos.
– Table storage: stores structured data such as records and rows.
– Queue storage: stores messages that can be accessed by multiple applications.
– File storage: stores files that can be accessed by multiple applications.

11. Is it possible to use automation tools like Chef, Puppet, or Ansible to manage servers running on AWS EC2? If yes, then what factors need to be considered while doing so?

Yes, it is possible to use automation tools like Chef, Puppet, or Ansible to manage servers running on AWS EC2. However, there are a few factors that need to be considered while doing so. First, you need to make sure that the automation tool is compatible with the operating system running on the EC2 instance. Second, you need to ensure that the automation tool can properly communicate with the AWS API. Lastly, you need to take into account the cost of using the automation tool, as well as the time required to set it up and maintain it.

12. What are some common issues that occur during cloud migration?

One common issue that can occur during cloud migration is data loss. This can happen if data is not properly backed up before migration or if there is an issue with the migration process itself. Another common issue is compatibility issues, which can occur if the new cloud environment is not compatible with the applications and data that are being migrated. Finally, cost can also be an issue, as migrating to the cloud can sometimes be more expensive than maintaining on-premises infrastructure.

13. What type of application is not suitable to run on AWS?

Any application that is not able to run on a virtualized environment is not suitable to run on AWS. This includes applications that require special hardware or that are very resource intensive.

14. What are the various steps involved in planning a cloud migration project?

The first step is to assess your current infrastructure and identify which workloads are a good fit for the cloud. The next step is to develop a cloud migration strategy. This will involve deciding which cloud platform to use and how you will move your data and applications to the cloud. The next step is to implement your cloud migration plan. This will involve setting up your cloud environment and migrating your data and applications. Finally, you will need to monitor and optimize your cloud environment to ensure that it is running smoothly.

15. What are the three fundamental components of any cloud architecture?

The three fundamental components of any cloud architecture are the front-end, back-end, and middleware. The front-end is the interface that users interact with in order to access the cloud, the back-end is the infrastructure that supports the cloud, and the middleware is the software that ties the front-end and back-end together.

16. What is the “cloud”?

The cloud is a term used to describe a network of remote servers that are accessed over the internet. These servers are used to store, manage, and process data. Cloud migration is the process of moving data and applications from on-premises servers to the cloud.

17. What are the different deployment models used in cloud computing?

The three most common deployment models used in cloud computing are public, private, and hybrid. Public clouds are owned and operated by a third-party service provider, and they allow users to access the cloud resources over the internet. Private clouds are owned and operated by a single organization, and they are usually only accessible by that organization. Hybrid clouds are a combination of public and private clouds, and they allow organizations to use both on-premises and off-premises resources.

18. What are the different types of clouds?

The three types of clouds are public, private, and hybrid. Public clouds are owned and operated by a third-party service provider, and they offer their services to the general public. Private clouds are owned and operated by a single organization, and they are not made available to the general public. Hybrid clouds are a combination of public and private clouds, and they offer the benefits of both.

19. Which one do you prefer: Public vs Private cloud?

It really depends on the needs of the organization. A public cloud is great for organizations that don’t want to invest in their own infrastructure, or that need the flexibility to scale up or down quickly. A private cloud can be more secure and can offer more control to the organization, but it is also more expensive.

20. What are the different layers involved in cloud computing?

The different layers involved in cloud computing are the hardware layer, the virtualization layer, the management layer, and the application layer.