The document provides an overview of 20 common Azure interview questions and their answers. It discusses key Azure services and components like Virtual Machines, App Services, Storage, Virtual Networks, SQL Database, Active Directory, and Functions. It also covers Azure deployment models, DevOps, Load Balancer, Active Directory B2C, Site Recovery, Functions Premium plan, Fault Domains, Update Domains, Network Security Groups, Scale Sets, and break-fix issues.

1. Top 20 Azure Interview Questions and Answers in 2023
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Here are the top 20 Azure interview questions and answers:
What is Microsoft Azure?
Microsoft Azure is a cloud computing platform and service offered by Microsoft. It
provides a wide range of cloud services, including computing power, storage, and
analytics, to help organizations build, deploy, and manage applications and services
through Microsoft-managed data centers.
What are the key components of Azure?
The key components of Azure include Azure Virtual Machines, Azure App Services,
Azure Storage, Azure Virtual Networks, Azure SQL Database, Azure Active Directory, and
Azure Functions.
What is the difference between Azure App Service and Azure Cloud Services?
Azure App Service is a fully managed platform for building, deploying, and scaling web
applications, mobile app backends, and RESTful APIs, while Azure Cloud Services is a
platform that allows you to build, deploy, and manage applications using Microsoft-
managed data centers.

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What is Azure Virtual Network?
Azure Virtual Network allows you to create isolated virtual networks in Azure and
securely connect them to your on-premises networks or other Azure virtual networks.
It provides network connectivity, subnets, and customizable network configurations.
What is Azure Blob Storage?
Azure Blob Storage is a scalable object storage service that allows you to store and
retrieve large amounts of unstructured data, such as text or binary data. It is ideal for
storing documents, images, backups, and other types of files.
What is Azure SQL Database?
Azure SQL Database is a managed relational database service that provides a fully
managed, highly available, and scalable database platform for running SQL Server
workloads in the cloud. It offers built-in high availability, automatic backups, and
intelligent performance optimization.
What is Azure Active Directory (Azure AD)?
Azure Active Directory is a cloud-based identity and access management service that
provides authentication and authorization for Azure resources, as well as integration
with other cloud-based and on-premises applications.

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What are the different deployment models in Azure?
The different deployment models in Azure are Azure Resource Manager (ARM) and
Azure Classic. Azure Resource Manager is the recommended deployment model,
providing a more flexible and granular way to manage and deploy Azure resources.
What is Azure Functions?
Azure Functions is a serverless computing service that allows you to run your code in
response to events or triggers without the need to provision or manage any
infrastructure. It enables you to build event-driven, scalable, and cost-effective
applications.
What is Azure DevOps?
Azure DevOps is a set of development tools and services that help teams plan,
develop, test, and deliver software efficiently. It provides capabilities for version
control, continuous integration and delivery (CI/CD), agile planning, and more.
What is Azure Load Balancer?
Azure Load Balancer is a Layer 4 load balancing service that distributes incoming traffic
among multiple virtual machines or instances in Azure. It helps improve the availability
and scalability of applications.

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What is Azure Active Directory B2C?
Azure Active Directory B2C (Business to Customer) is a cloud identity service that
allows you to integrate identity management and authentication into your consumer-
facing applications. It enables you to secure customer data and provide seamless
sign-up and sign-in experiences.
What is Azure Site Recovery?
Azure Site Recovery is a disaster recovery service that allows you to replicate and
recover workloads from on-premises data centers or other cloud platforms to Azure.
It provides automated replication, failover, and recovery options to ensure business
continuity.
What is Azure Site Recovery?
Azure Site Recovery is a disaster recovery service that allows you to replicate and
recover workloads from on-premises data centers or other cloud platforms to Azure.
It provides automated replication, failover, and recovery options to ensure business
continuity.

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What is Azure Functions Premium plan?
Azure Functions Premium plan is a consumption-based plan that provides enhanced
performance, scale, and advanced features for running serverless applications in Azure.
What are Fault Domains?
Fault Domains in Azure refer to logical groups of hardware and network resources
within an Azure data center. They are designed to provide resiliency by ensuring that
services and applications are spread across multiple fault domains to minimize the
impact of hardware or network failures.
What are Update Domains?
Update Domains in Azure refer to logical groups of virtual machines (VMs) within an
Azure Availability Set. They are used to ensure that during planned maintenance or
updates, only a subset of VMs within an Availability Set are taken offline at a time,
while the others remain available, ensuring high availability of applications.

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What are Network Security Groups?
Network Security Groups (NSGs) in Azure are virtual firewalls that control inbound and
outbound traffic to Azure resources. They provide network-level security by allowing or
denying traffic based on rules and can be applied to subnets, network interfaces, or
individual virtual machines to control network traffic flow.
Do scale sets work with Azure availability sets?
Yes, Azure Scale Sets can work with Azure Availability Sets. By deploying VM instances in
a Scale Set within an Availability Set, you can achieve both scalability and high
availability for your applications, ensuring that instances are distributed across multiple
fault domains and update domains.
What is a break-fix issue?
A break-fix issue refers to a problem or malfunction in a system or software that needs
to be resolved or fixed. It typically occurs when a component or functionality breaks and
requires troubleshooting, diagnosis, and resolution to restore the system’s proper
functioning.