Interview Questions

Describe the IaaS, PaaS, and SaaS models?

IaaS: Infrastructure-as-a-Service or IaaS lets you create cloud-based infrastructure (servers, networks, and so on) in the cloud. Like on-premises, but without the complexity of data centers or infrastructure.

PaaS: Platform-as-a-Service or PaaS allows you to develop software on a cloud-based platform without worrying about infrastructure deployment. Less stress regarding OS/Hardware, but the greater power is given to the vendor.

SaaS: Software-as-a-Service or SaaS is a concept where the provider manages practically everything, and you only use the service, such as Office 365 or DropBox.

What are the main characteristics of cloud computing?

The key characteristics of cloud computing are as follows:

3 Mention the various cloud computing data centers?

Cloud computing data centers include the following:

4 What exactly is cloud architecture?

Cloud architecture refers to the cloud computing components and subcomponents. The most typical of these components are a front-end platform, back-end platforms, cloud-based delivery, and a network; cloud architecture is made up of these aspects.

5 What are the components of cloud computing architecture?

The following are some of the primary components of cloud computing architecture:

6 What is scalability in the cloud?

The capacity to increase or reduce IT resources as necessary to meet increasing or decreasing demand is referred to as scalability in cloud computing. It is one of the cloud’s defining features and the key driver of its growing popularity among enterprises.

7 What are the various levels that make up cloud architecture? Cloud architecture is divided into five layers, as follows:

8 How can you keep your data safe when transferred to the cloud?

The data must be encrypted, and it should be ensured that data is not leaked while moving to the cloud to safeguard data while migrating to the cloud.

9 What exactly is ‘EUCALYPTUS’?

EUCALYPTUS is the abbreviation for Elastic Utility Computing Architecture for Linking Your Programs. It is commonly used in the cloud computing platform to implement clusters to establish public, hybrid, and private clouds.

10

What role does API play in cloud services?

API stands for Application Programming Interface. It is a critical component of cloud platforms. It is employed in the following contexts:

It specifies how one or more programs should communicate with one another.

It enables us to use cloud services.

It facilitates the building of applications and the integration of cloud services with other platforms.

It also reduces the need to write entire programs.

11

What role does the performance cloud play in cloud computing?

The performance cloud enables the fastest possible data transfer. It is commonly used by experts involved in highperformance computing development.

12

What is Amazon SQS?

Amazon SQS messages are utilized between Amazon components to connect with various connectors. As a result, Amazon SQS can be described as a communicator.

13

What role does buffer play in Amazon Web Services (AWS)?

A buffer is used to improve system efficiency in traffic or load. It assists in the coordination of several components. The buffer maintains the harmony between those components while also causing them to work at the same speed to complete the operation faster.

14

What exactly is a systems integrator?

A systems integrator in cloud computing is a person or firm who specializes in compacting component subsystems and ensuring that they work together.

15 Define geo-targeting in CloudFront?

Geo-targeting is a framework that enables organizations to show personalized information to their audiences based on their geographical location without changing the URL. This allows you to produce customized content for a particular geographical area’s audience while keeping their demands in mind.

16 What stages are involved in implementing a CloudFormation Solution?

Following are the steps:

Build a different CloudFormation framework or reuse an existing one in JSON or YAML format.

Save the code to an S3 bucket that will be a storage for the code.

To access the container and build a layer on your framework, use AWS CloudFormation.

CloudFormation examines the file, identifies the resources that are called, their order, and the relationships between them, and then provisions the services one by one.

17

What are the benefits of Azure Autoscaling?

Autoscaling is a feature of Azure that allows automatic scaling. Autoscaling assists in managing changing market conditions in cloud services, mobile services, Virtual Machines (VMs), and websites. Here are a few of its benefits:

Improves

18 In Azure SQL, what is Federation?

1 It allows users to access information hosted in the cloud.

2 Users can create their databases or exchange databases with one another.

3 It minimizes the probability of a single point of failure.

4 It saves costs by only using cloud resources when they are needed.