Top 25 Azure Most Commonly Asked Interview Questions with Answers 2021


Cloud computing has emerged as a driving force for many businesses in recent years, as they are moving out of challenging on-premise data centres to boost their business agility, increase their productivity, as well as reduce infrastructure management costs.

The transition from on-premises data centres to the cloud has been made easy by three public cloud providers - Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

Gartner in its latest Magic Quadrant has listed Microsoft Azure as the most dominating Infrastructure as a Service cloud provider.

The platform has gained immense popularity in recent years, and it accounts for 20.3% of the market share. This means, there is a high demand for Azure certified professionals in the market.

However, that is not enough. Along with experience and certification, these professionals also need to prepare for interviews.

After all, their chances of gaining an opportunity will depend on their interview performance, among other things.

This article prepares them for Azure interviews by offering insights on some probable questions and their answers.

The interview questions here are organized into three categories - basic, general, and advanced.

Basic Azure Interview Questions and Their Answers

Do you think these basic Azure interview questions are fit only for freshers? The questions discussed in this section may look basic, but they may be put forward to an experienced person, too.

  1. What is cloud computing?
  2. Cloud computing is the term for storage, processing, and retrieval of data over the Internet whenever and wherever needed. Cloud computing helps reduce hardware dependability, infrastructure and resource management, and enables users to focus on anywhere or anytime productivity.

  3. What are the different types of services offered in cloud computing?
  4. Cloud computing services can be easily distinguished into three types - PAAS, IAAS, and SAAS.

    1. IAAS: It is an abbreviation for Infrastructure As A Service, where users receive a server from their service provider. This server can be easily configured to meet your application requirements. Azure VM is the best example of this service type.
    2. PAAS: This stands for the Platform As A Service, where the user gains access to publishing their content on a platform without accessing the underlying software. Often, mobile apps developed in Azure follow this type of service.
    3. SAAS: This refers to Software As A Service, where you can use the software at a monthly subscription. It means a user need not own a platform or the hardware.

  5. Can you explain different cloud deployment models?
  6. There are mainly three cloud deployment models, as discussed below:

    1. Public Cloud: In this type of cloud, the infrastructure is usually owned by the cloud provider. You will share the server with other users.
    2. Private Cloud: In this type of cloud, the infrastructure may be owned by you or the cloud service provider. Here, you get a chance to use the infrastructure exclusively. You do not share it with other users. For instance, hosting your website on a dedicated server is the best example of this cloud deployment.
    3. Hybrid Cloud: It combines the best of both the aforementioned cloud types. You can use a private cloud for hosting your confidential company data and a public cloud for hosting the general information of the company.

  7. What is Microsoft Azure?
  8. This is one of the most popular Azure interview questions of all time. Microsoft Azure is a popular cloud computing platform developed by Microsoft. It was introduced in the year 2010, and this platform assures high flexibility when it comes to service hosting, data storage, development, and service management.

  9. What are some applications of Microsoft Azure?
  10. Microsoft Azure can be used to develop mobile applications, infrastructure services, cloud services, web applications, media services, and so on.

  11. What are the key functions of Azure Cloud Service?
  12. The Azure cloud service is designed to perform the following functions:

    1. Managing both running application and background running application
    2. Supporting both web roles and worker roles

  13. What are the different types of roles available in Windows Azure?
  14. The roles are nothing but servers, which are linked together to load balance and manage the platform as a service virtual machine. All these are made to work together when targeting a common goal. There are three types of roles in Windows Azure.

    1. Web Role: This is a key role, which is used for website deployment. Web role makes use of languages like .NET, PHP, and so on, which are supported by the IIS platform for deployment.
    2. Worker Role: This role is employed to execute various background processes.
    3. VM Role: It schedules the windows task and services. During the execution, the user customizes the machine on which the worker’s role is operated.

  15. What is the purpose of the cloud configuration file?
  16. The cloud configuration file or .csfg file is common to all cloud services. The file holds important information pertaining to:

    1. Main copies of certificates
    2. Number of instances in every project
    3. Storage of user-defined settings

  17. Which types of web applications can be deployed on Azure?
  18. You can deploy web applications made of languages such as PHP, ASP.NET, WCF, and so on. In the last few years, Microsoft has released SDKs for Ruby and Java, thereby allowing applications developed in these languages to place their calls in the API of the Azure service platform.

General Azure Interview Questions and Their Answers

These general Azure interview questions will help candidates to improve their knowledge of different aspects of Azure.

  1. What is a domain?
  2. It is a term for interlinked and interconnected nodes implemented by the organization. These relations are usually conducted at one point in the organization.

  3. What is a fault domain?
  4. This is a logical working domain where the hardware shares the common switch network and a power source.

    All VMs are distributed across the fault domain. This helps reduce the chances of failure of hardware and minimizes the impact of power outages on the network.

  5. What are update domains?
  6. This refers to the group of hardware, which can be easily rebooted, as well as maintained at the same time.

    If you create virtual machines in the availability set, these machines will be distributed across the updated domains automatically on the Azure platform.

    This helps ensure the availability of at least one instance when there is ongoing maintenance on the Azure platform.

  7. What do the terms minimal and verbose monitoring mean?
  8. In verbose monitoring, the metrics are collected on the basis of the performance. The data fed during the application processing is closely analyzed during this type of monitoring.

    However, minimal monitoring is the default configuration, which utilizes the performance counters collected from the host's operating system.

  9. What is Azure Fabric?
  10. It is the core concept, which combines various virtualized instances that run the client application.

    It offers a service known as Azure Fabric Controller.

    The Azure Fabric handles various functions such as all resources and processing roles, monitoring the service health, activating and sending services, allocating and releasing resources, updating the patches for the installed OS on VM automatically, and so on.

  11. What is Azure Service Level Agreement (SLA)?
  12. Azure’s Service Level Agreement (SLA) describes the commitments made by Microsoft regarding service connectivity and uptime.

    The SLAs usually cover two or more instances of roles. Microsoft assures 99.95% accuracy to its cloud service.

    Generally, the re-correction, as well as identification activities start 99.9% on time when the procedure of the role instance fails to perform.

  13. What is Windows Azure Traffic Manager?
  14. It allows users to control the user traffic distribution of applications hosted on the Azure cloud platform.

    Azure recommends three distinctive load-balancing strategies for user traffic distribution. The Manager working on traffic distribution will apply the routing policy on the Domain Name Service (DNS).

    It also maps the DNS courses to the right application instances. It enables continuous monitoring of automatic failover and endpoint health on the occasion of the failure of an endpoint.

  15. What is Windows Azure Resource Manager?
  16. This feature is used for provisioning deployment as well as management services in Azure. The management layer enables easy deletion and update of resources in the Azure subscription.

    However, you can deploy your resources using JSON templates. The related resources can also be organized in various resource groups.

  17. Do you have any idea on Azure Active Directory or Azure AD and its usage?
  18. Azure AD is a multi-tenant service, which is fully managed. It helps implement access and identity capabilities for applications, which run on Azure, as well as those applications that run on the on-premises environment.

    Azure AD provides multi-factor authentication and single sign-on. Both these features help users to protect their applications from attacks.

  19. Can you differentiate between Azure Storage Queues and Azure Service Bus Queues?
  20. Yes. The storage queues feature a REST-based GET/PUT/PEEK interface, which assures reliable and persistent messaging between and within the services.

  21. What is Azure Service Fabric?
  22. This is the distributed platform designed by Microsoft to support the deployment, development, and management of customizable and scalable applications.

    The applications in this environment feature several microservices that communicate with each other through service programming interfaces.

  23. Name the type of services that you can build with Azure Service Fabric?
  24. You can build two types of services with Azure Service Fabric. They are:
    • Stateful Services: In this, the state is stored in the service, and it is allowed to persist without needing an external database.
    • Stateless Services: Unlike stateful services, here, no state is stored. However, the longer-term state is generally stored in a database that lies externally. This is the typical data layer/application layer used to build services.

Advanced Level Azure Interview Questions for the Experienced and Their Answers

As the name suggests, these advanced-level Azure interview questions are often put forward to candidates who may have considerable experience with the platform.

  1. What are the different Azure VM sizes?
  2. The Azure VM balances a variety of sizes, and they include the following:

    • Extra Large Computer: 8*1.6 GHz Instance size; Instance storage of 2040 GB; 14 GB CPU memory; and high I/O Performance
    • Large Computer: 4*1.6 GHz Instance size; 1000 GB of Instance Storage; 7 GB CPU memory; and high I/O Performance
    • Medium Computer: 2*1.6 GHz Instance size; 490 GB of Instance Storage; 3.5 GB CPU memory; and high I/O Performance
    • Small Computer: 1.6 GHz Instance size; 225 GB Instance Storage; 1.75 GB CPU memory; and moderate I/O Performance
    • Extra Small Computer: 1.0 GHz Instance size; Instance Storage of 20 GB; 768 MB CPU memory; and low I/O Performance

  3. How will you manage the drive failure?
  4. In the instance of a drive failure, the following steps must be performed.

    • The drive should not be mounted and this helps the object storage to work efficiently and minimizes their chances of failure.
    • The drive must be replaced. It can be remounted after formatting.

  5. How will you manage the service failure?
  6. To manage the service failure, you need to take the following steps:

    • Check if the services of an object have stopped. This will help the object services to withstand the failure.
    • Ensure the system object storage remains functional. Next, try to start the machine to make it online. Once this starts, the replication will start immediately, thereby activating the missing files, which were updated.
    • If you fail to replace the drive then remove it completely. Ensure to avoid mounting of the system.

  7. What is PROC MEANS and the PROC SUMMARY?
  8. The PROC SUMMARY is the statistical aid that informs you about all information that is running simultaneously. This information is produced automatically for every subgroup. The information present in the outlet is not produced.

    The PROC MEANS is a subgroup created with the help of a BY statement that is involved. The data here is sorted using BY Variables.

Conclusion

All the Azure interview questions discussed here will help cloud computing professionals to improve their performance in the interview.

These questions are helpful for both - beginners and experienced cloud computing professionals.

Although hands-on knowledge, experience, and the ability to confidently answer all questions will help to crack the interview, that’s not enough.

A candidate needs to clear different levels of Azure certification if they wish to improve their chances of success. Azure certification exams are like another technology exam that demands dedicated preparation.

Today, you can find several study materials online offering you insights on different concepts of the Azure platform.

However, that is not enough. You need to attempt mock exams and simulations to clear the exam.

At CertoMeter, we provide well-structured and popular Azure certification courses. These courses offer you access to the updated Azure certification exam content, as well as allow you to prepare for the exam effectively.

By joining these courses, you can avail the best course content that any online platform can offer, as well as gain an opportunity to clarify your doubts from industry experts, as well as practice for the exam by attempting different free and paid mock tests in each category.

These tests are regularly updated with fresh content to offer you the best mock exam experience online.

Curated by-

Ms. Mahima Garg

She is a technology enthusiast and an author who is passionate about ideation, planning, implementing, integrating, and managing business processes for business growth. This led her and the team to build a Global IT Certification and Preparation Platform for professionals which help them get certified and enhance their career growth. With 20+ years of experience in IT and Management, she believes to impart what she has learned in her exciting career.

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