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Frequently Asked Microsoft Azure Interview Questions

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Introduction

Microsoft Azure is an expanding suite of cloud computing services developed by Microsoft that hosts your existing apps, streamlines the creation of a new application, and improves our on-premises applications. It is an online portal that enables you to access and manage Microsoft cloud services and resources. With these services and resources, your data can be stored and changed based on your needs.

(Source:saviantconsulting.com)

The Azure platform intends to assist organizations in overcoming obstacles and achieving their organizational objectives. It is compatible with open-source technology and supports all industries, including e-commerce, banking, and a range of Fortune 500 firms. This allows users the freedom to utilize their preferred tools and technologies. Azure also offers four distinct cloud computing models: infrastructure as a service (IaaS), platform as a service (PaaS), software as a service (SaaS), and serverless.

How does Microsoft Azure Work?

It is vital to understand the fundamental workings of Azure so that we may build our applications on Azure successfully with high availability, data residency, resilience, etc.

Microsoft Azure is built entirely on the notion of virtualization. Consequently, similar to other virtualized data centers, racks are also included. Each rack has its power supply and network switch and is also equipped with the Fabric-Controller software. Fabric-controller is a distributed program responsible for controlling and monitoring rack-mounted servers. If a server fails, the Fabric controller detects and restores it. Each of these Fabric-Controllers is connected to a software application named Orchestrator. This Orchestrator consists of web services and a Rest API for creating, updating, and deleting resources. When a user submits a request using either PowerShell or the Azure portal. First, it will be sent to the Orchestrator, where it will perform three basic actions:

  • Authenticate the User

  • It will authorize or verify if the user is permitted to perform the desired task.

  • It will check the database for space availability based on the resources and then forward the request to a suitable Azure Fabric controller for execution.

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Flexibility

Azure is inherently adaptable as a cloud-based solution; it can back up your data in nearly any language, operating system, and anywhere. Additionally, you determine the frequency and scope of your backup schedule (daily, weekly, monthly, etc.).

Application development and hosting

Azure supports the creation of any web application. After testing is complete, Azure may assist with hosting the application.

Recovery 

Occasionally, the inconceivable becomes the present reality. Microsoft Azure’s high-speed, geographically dispersed architecture provides endless alternatives for disaster recovery strategies.

Economical

Microsoft Azure offers a pay-as-you-go pricing model that enables businesses to effectively manage their budgets by charging them only for the services they utilize during each billing cycle.

Interview Questions.

1. What deployment environments does Azure offer?

Azure offers two environments for deployment:

Staging Environment:

  • It provides a platform for validating your application’s modifications before it is live in the production environment.

  • At this point, the app may be recognized using the Globally Unique Identifier (GUID) in URL form provided by Azure (GUID.cloudapp.net)

Production Environment:

  • This environment contains active applications.

  • It may be distinguished from the staging environment through a DNS-friendly URL (servicename.cloudapp.net).

2. Define IaaS, PaaS, and SaaS.

Microsoft Azure
(Source:stackscale.com)
  • IaaS abbreviates Infrastructure as a Service. It provides various infrastructure-level features, such as an operating system and network connection. It adheres to a pay-per-use model. It serves as an application host. Azure VM and VNET are examples of IaaS.
  • PaaS abbreviates Platform as a Service. It consists mostly of infrastructure abstraction that enables speedier application development without the bother of hosting administration. PaaS includes Azure online applications, cloud services, storage services, etc.
  • SaaS abbreviates for Software as a Service. These apps are offered via a service delivery approach in which an organization just utilizes applications. Subscription-based charges or advertisements follow SaaS. SaaS examples include Gmail, Office 365, SharePoint Online, and others.

3. What is Azure Blob Storage?

Azure Blob (binary huge object) storage is the cloud’s object storage service. It can store vast amounts of unstructured data in text or binary format and is appropriate for sending documents, media, or text straight to browsers. From any geographical location, data can be accessed. Blobs are organized into containers and associated with user accounts. This service has three elements:

  • Storage account: This can be either a standard storage account or a blob storage account registered in Microsoft Azure.

  • Container: The purpose of containers is to group blobs. Each container has a limitless capacity for blob storage. The container’s name should be in lowercase.

  • Blob: A blob is any type and size of file or document. Azure supports the following sorts of blobs:

  • Block blobs: Text and binary files up to 195GB, 50,000 maximum 4 MB blocks

  • Append blobs: Adds operations such as data logging to log files.

  • Page Blob: For frequent read or write operations.

4. What are the benefits of Azure Scaling?

Autoscaling is a feature of Azure that allows automatic scaling. Autoscaling aids in the management of fluctuating demand in Cloud Services, Mobile Services, Virtual Machines, and Websites. Some benefits are listed below:

  • Enhances application performance

  • Depending on demand, scale up or down.

  • Scaling the schedule to certain periods

  • Extremely cost-effective

5. Explain Azure Fabric.

Azure Fabric is the primary fundamental notion. It provides the Azure Fabric Controller service. It is known as the Azure operating system because it manages/oversees:

  • All functions (processing) and assets

  • Delivery and activation of services

  • Monitoring the condition of every service

  • Allocation and release of resources

  • Provisioning virtual machines, terminating, etc.

  • Patches for the installed OS are updated in the most automatic manner on VM.

6. Explain Azure Backup. Mention some of its merits.

Microsoft’s Azure Backup is a cloud-based solution for backing up Azure Windows VMs, Azure Managed Disks, Azure File shares, SQL Server databases, SAP HANA databases, Azure PostgreSQL databases, and more.Among the key advantages of Azure Backup are:

  • Azure Backup provides a practical method for backing up on-premises data to the cloud. Without constructing significant on-premises backup systems, you may have a backup for both the short and long term.

  • Azure Backup offers independent backups to safeguard original data from unanticipated harm. The backups are kept in a Recovery Services storage with built-in recovery point management.

  • Azure Backup provides high availability with minimal maintenance and monitoring costs by exploiting the cloud’s basic capabilities and endless storage space.

7. What is the table notion in Windows Azure?

A table is a kind of Azure Storage where you may store data. BLOBs are placed in a compartment, and entities are placed on a table. The following are the central ideas in a table:

  • Tables enable the storing of structured data.

  • A storage account can include from 0 to n tables.

  • Tables hold data as a collection of elements.

  • An element has an essential key and attributes in the form of a key-value pair.

8. What are the two kinds of Azure Web Service roles?

A cloud service role is a collection of managed and load-balanced virtual machines collaborating to complete tasks. There are two varieties of Azure Web Service roles:

  • Web Roles:

It is a cloud service role used to execute web applications developed in programming languages supported by IIS (Internet Information Services) like ASP.NET, PHP, etc. It deploys and hosts programs automatically via the user IIS

  • Worker Role:

It executes apps and other operations that are not dependent on IIS. It conducts background operations in addition to web roles. It does not require IIS and operates user programs independently.

9. What are the advantages of Azure Queue Storage?

Queue storage facilitates message queueing for huge workloads in a simple, cost-effective, and durable manner. Some of its benefits are:

  • It provides extensive client libraries for Java, Android, C++, PHP, Ruby, and others.

  • It enables users to create adaptable applications and distinct features for improved durability.

  • It guarantees that user applications are scalable and less susceptible to component failure.

  • It permits the monitoring of queues to ensure abrupt traffic spikes do not overload servers.

10. How has hybrid cloud integration benefited Azure?

The Hybrid Cloud increases productivity by using Azure and the Azure stack to develop and deploy cloud-based and on-premises applications. The following are some of the ways that Azure has profited from hybrid cloud integration:

  • Users can utilize continuously updated Azure services and other Azure Marketplace apps.

  • It enables deployment regardless of location, whether in the cloud or on-premises.

  • This permits the creation of applications at a faster rate.

Conclusion

This article provides information on one of Microsoft’s cloud computing services, Azure. Microsoft Azure has proven to be the cloud platform with the quickest growth due to its more than 200 service offerings and pay-per-use pricing model. Microsoft Azure’s income has steadily increased from $880 million in 2015 to a staggering $46.2 billion in 2022.

This great expansion in Azure has opened the way for several enterprises by offering numerous chances in both technical and non-technical fields, consequently making it a very profitable field in which to establish a career.

We hope that these interview questions will help you prepare for forthcoming interviews. However, if you have any queries regarding Microsoft Azure Interview Questions, please feel free to ask. Below is a list of the key points:

  • Azure’s several cloud computing paradigms, namely IaaS, PaaS, SaaS, and serverless.

  • Azure features such as Azure Fabric, Azure Backup, and others.

  • Learn that the Web Role is supported by IIS, whereas the worker role is independent of IIS.

  • Why use Azure and many other topics?

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