180 Azure Interview Questions And Answers in 2024

Last Updated on December 2, 2024 by Arnav Sharma

Part 1 (1 to 45 Questions): 180 Azure Interview Questions And Answers in 2024

Part 2 (46 to 90 Questions): Azure Interview Questions And Answers – Part 2

Part 3 (90 to 134 Questions): Azure Interview Questions And Answers – Part 3

Part 4 (135 to 180 Questions): Azure Interview Questions And Answers – Part 4

1. Describe Cloud Computing.

Cloud computing refers to the delivery of various services over the Internet. These services include storage, databases, servers, networking, software, analytics, and intelligence. Cloud computing offers faster innovation, flexible resources, and economies of scale.

2. Describe the Azure Cloud Service concept.

Azure Cloud Service is a platform as a service (PaaS) that is designed to host highly available, scalable, and multi-tier cloud applications. It provides the ability to create, deploy, and manage applications and services through Microsoft-managed data centers.

3. What are the various cloud deployment models available?

The main cloud deployment models are:

• Public Cloud: Services are delivered over the public internet and shared across organizations.
• Private Cloud: Services are maintained on a private network, ensuring higher security and control.
• Hybrid Cloud: A combination of both public and private clouds, offering flexibility by transferring data and applications between them.
• Community Cloud: Shared infrastructure for a specific community.

4. Explain an Azure role instance.

An Azure role instance is a virtual machine on which application code runs in a cloud service. It can be web roles (used for web applications) or worker roles (used for background processes).

5. How many different types of cloud service roles does Azure offer?

Azure offers two types of cloud service roles:

• Web Roles: These roles automatically deploy and host front-end web applications through Internet Information Services (IIS).
• Worker Roles: These roles execute asynchronous, long-running, or perpetual tasks without using IIS.

6. What is the purpose of the Azure Diagnostics API?

The Azure Diagnostics API enables the collection of diagnostic data from an application running in Azure. This data includes logs, metrics, crash dumps, and performance counters, which can be used for monitoring, troubleshooting, and improving application performance.

7. Explain the Service Level Agreement (SLA) for Azure.

The Azure Service Level Agreement (SLA) is a formal agreement that guarantees a certain level of service uptime and connectivity. For most Azure services, the SLA guarantees at least 99.9% availability. If the service fails to meet this, customers are eligible for service credits.

8. What is Azure Resource Manager and how does it simplify resource management?

Azure Resource Manager (ARM) is a management framework that allows for the deployment, management, and monitoring of Azure resources. It simplifies resource management by providing a consistent management layer that allows users to create, update, and delete resources in a resource group as a single operation.

9. What does Azure’s NSG stand for?

NSG stands for Network Security Group. It is used to manage and control inbound and outbound traffic to Azure resources in a virtual network. NSGs contain security rules that allow or deny network traffic based on source and destination IP address, port, and protocol.

10. Is it accurate to say that in a virtual network established by traditional deployment, virtual machines can be built using Azure Resource Manager?

Yes, it is accurate. In a virtual network established by traditional deployment, virtual machines can indeed be built using Azure Resource Manager, which allows for more advanced features and management capabilities.

11. Explain Azure Redis Cache.

Azure Redis Cache is a managed, in-memory cache that enables high-performance and scalable web and mobile applications. It is based on the popular open-source Redis cache, providing access to a secure, dedicated Redis cache managed by Microsoft.

12. Describe the scale sets of Azure virtual machines.

Azure Virtual Machine Scale Sets allow you to deploy and manage a set of identical, auto-scaling virtual machines. They are designed to support large-scale applications by providing high availability and automatic scaling to handle increased load.

13. What do you know about Azure’s “Availability Set”?

An Availability Set is a logical grouping of VMs that allows Azure to understand how your application is built to provide redundancy and availability. VMs in an Availability Set are distributed across multiple fault domains and update domains to ensure that applications remain available during hardware failures, maintenance events, or upgrades.

14. What choices are there for Azure’s deployment environments?

Azure offers several deployment environments for an azure developer:

• Azure App Service: For hosting web apps, mobile apps, and APIs.
• Azure Kubernetes Service (AKS): For deploying, managing, and operating Kubernetes clusters.
• Azure Virtual Machines: For deploying applications on virtualized hardware.
• Azure Functions: For serverless computing to run event-driven code.

15. What actions need to be performed in the event that an Azure drive fails?

In the event of an Azure drive failure:

• Data Recovery: Restore data from the last backup.
• Azure Support: Contact Azure Support for assistance.
• Monitoring and Alerts: Ensure that monitoring and alerts are in place to detect and respond to drive failures promptly.
• Redundancy and Resiliency: Use redundancy options like Azure Storage replication to minimize the impact of drive failures.

16. Are you able to create Azure applications that can deal with connection failures?

Yes, Azure applications can be designed to handle connection failures by implementing retry policies, using queues for communication between components, leveraging transient fault handling libraries, and implementing fallback mechanisms to ensure application resilience.

17. Define an Azure storage key.

An Azure storage key is a secret key used to authenticate access to Azure Storage accounts. There are two types of storage keys: primary and secondary. These keys provide administrative access to the storage account’s data and configurations in Windows Azure.

18. What is cspack and how does Azure use it?

cspack is a command-line utility in Azure that packages application files and configuration settings into a service package file (.cspkg). This package is then deployed to Azure Cloud Services for running applications in the cloud.

19. Which Azure option works best for code execution without a server?

Azure Functions is the best option for executing code without managing servers. It allows you to run event-driven code in a serverless environment, scaling automatically and only charging for the compute resources used during execution.

20. Which Azure function is suggested for a shared file-sharing setup amongst several virtual machines?

Azure Files is suggested for shared file-sharing setups. It provides fully managed file shares in the cloud that can be accessed via the Server Message Block (SMB) protocol from multiple virtual machines.

21. Is it feasible to access an Azure Linux virtual machine without entering a password?

Yes, it is feasible to access an Azure Linux virtual machine without entering a password by using SSH public key authentication. You can configure the VM to accept SSH keys during the VM creation process or later by adding your public key to the ~/.ssh/authorized_keys file.

22. How do Azure Scale Sets and Availability Sets differ from one another?

• Azure Scale Sets: Allow you to deploy and manage a set of identical VMs, providing automatic scaling and high availability.
• Availability Sets: Ensure that VMs are distributed across multiple fault and update domains to protect against hardware failures and maintenance events. Availability Sets do not provide auto-scaling capabilities.

23. What occurs when the number of unsuccessful tries during Azure ID authentication is reached?

When the number of unsuccessful authentication attempts reaches the threshold, the user account is locked out for a specified duration as a security measure to prevent brute-force attacks. The duration and threshold can be configured in Azure Active Directory.

24. Is it possible to get the Azure Internal Load Balancer’s public DNS or IP address?

No, the Azure Internal Load Balancer (ILB) does not have a public DNS or IP address. It is designed to provide load balancing for internal resources within an Azure virtual network and is accessible only through private IP addresses.

25. Describe the concept behind Azure Blob Storage.

Azure Blob Storage is a service for storing large amounts of unstructured data, such as text or binary data. It is optimized for storing and retrieving massive amounts of data, providing scalable, cost-effective storage solutions. Blob Storage supports three types of blobs: block blobs, append blobs, and page blobs.

26. Describe Azure Scheduler and explain how to use it.

Azure Scheduler is a service that allows you to create jobs that run on simple or complex schedules. It is used for recurring actions like calling HTTP/S endpoints or posting messages to storage queues. To use it, you define a job, specify the action, set the schedule, and configure any necessary settings.

27. Can a Windows computer running on a separate port be mapped to an Azure load balancer?

Yes, you can configure an Azure Load Balancer to map traffic from a specific port on the load balancer to a different port on the backend Windows computer. This is done by creating load balancing rules that define the front-end port and the corresponding back-end port.

28. When there is no manual help available, which Azure feature can be used to manage heavy application loads?

Azure AutoScale can be used to manage heavy application loads automatically. It adjusts the number of VM instances based on demand, ensuring that applications remain responsive under varying load conditions without manual intervention.

29. What other kinds of storage services does Azure offer besides blob storage?

Azure offers several storage services besides blob storage:

• Azure Files: Managed file shares accessible via SMB protocol.
• Azure Disks: Persistent storage for Azure VMs.
• Azure Queues: Messaging service for communication between application components.
• Azure Tables: NoSQL storage for structured data.

30. Describe Azure’s IaaS, PaaS, and SaaS offerings.

• IaaS (Infrastructure as a Service): Provides virtualized computing resources over the internet (e.g., Azure Virtual Machines).
• PaaS (Platform as a Service): Provides a platform allowing customers to develop, run, and manage applications without managing infrastructure (e.g., Azure App Service).
• SaaS (Software as a Service): Delivers software applications over the internet, on a subscription basis (e.g., Office 365).

31. What distinguishes Azure SQL service from Azure Table Storage?

• Azure SQL Database: A relational database service based on SQL Server, supporting complex queries, transactions, and advanced analytics.
• Azure Table Storage: A NoSQL storage service for structured data, providing fast access to large volumes of data but without the relational database features like transactions and advanced queries.

32. How can connectivity be managed in Azure when the database must be on an on-premise server due to security concerns and the application front end is hosted there?

Connectivity can be managed using Azure Hybrid Connections, Azure VPN Gateway, or Azure ExpressRoute to establish secure, reliable connections between on-premise databases and Azure-hosted applications.

33. What distinguishes Azure Service Bus Queue from Azure Storage Queue?

• Azure Service Bus Queue: Offers advanced messaging features like dead-lettering, sessions, and transactions, suitable for enterprise messaging scenarios.
• Azure Storage Queue: Provides simple, scalable messaging with basic features, suitable for simple communication between application components.

34. What are the various causes of a client application getting disconnected from the cache?

Client applications may get disconnected from the cache due to:

• Network issues.
• Redis server failures.
• Azure Cache for Redis maintenance or upgrades.
• Expired connection tokens.
• Firewall or security group rules blocking traffic.

35. How can I create an Azure resource group?

You can create an Azure resource group using the Azure Portal, Azure CLI, PowerShell, or ARM templates. For example, using Azure CLI:

az group create --name MyResourceGroup --location eastus

36. What is Azure Machine Learning’s Text Analysis API?

Azure Machine Learning’s Text Analysis API is a cloud-based service that provides natural language processing capabilities. It can analyze text to extract key phrases, detect language, perform sentiment analysis, and identify named entities.

37. What is Service Fabric by Azure?

Azure Service Fabric is a distributed systems platform for building, managing, and deploying microservices and container-based applications. It provides features like automatic scaling, self-healing, and rolling upgrades to ensure high availability and resilience.

38. How do you explain Azure Traffic Manager?

Azure Traffic Manager is a DNS-based traffic load balancer that distributes traffic across multiple endpoints globally. It improves availability and responsiveness by directing client requests to the nearest or best-performing endpoint based on configured traffic-routing methods.

39. Which type of storage is most appropriate for managing unstructured data?

Azure Blob Storage is most appropriate for managing unstructured data. It is optimized for storing large amounts of unstructured data, such as documents, images, videos, and backups.

40. Describe the advantages of using Azure for scaling.

Advantages of using Azure for scaling include:

• Auto-scaling: Automatically adjusts resources based on demand.
• Cost-efficiency: Pay only for what you use.
• High availability: Built-in redundancy and failover capabilities.
• Flexibility: Scale up or down quickly to meet changing needs.

41. What distinguishes Azure Active Directory from Windows Active Directory?

• Azure Active Directory: A cloud-based identity and access management service, supporting single sign-on, multi-factor authentication, and integration with cloud applications.
• Windows Active Directory: An on-premises directory service for managing network resources, user accounts, and security policies within a Windows domain.

42. What types of queues does Azure provide?

Azure provides:

• Azure Storage Queues: Simple, scalable messaging service for basic communication between application components.
• Azure Service Bus Queues: Advanced messaging service with features like transactions, sessions, and dead-lettering for enterprise scenarios.

43. What benefits does Azure Resource Manager offer?

Azure Resource Manager offers benefits such as:

• Resource grouping: Manage and deploy resources as a group.
• Consistent management: Unified management layer for resources.
• Access control: Role-based access control for resources.
• Tagging: Organize resources with tags for easy management.

44. Which web apps are compatible with Azure deployment?

Web apps compatible with Azure deployment include those built with:

• ASP.NET
• Node.js
• PHP
• Python
• Java
• Ruby
• Static HTML/CSS/JavaScript

45. What benefits has Azure reaped from incorporating a hybrid cloud?

Incorporating a hybrid cloud allows Azure to:

• Extend on-premises infrastructure: Seamlessly integrate with existing on-premises systems.
• Flexibility: Deploy applications across public and private clouds.
• Scalability: Scale on-premises resources with the public cloud during peak demand.
• Disaster recovery: Implement robust disaster recovery solutions.