Top 80 Azure Interview Questions & Answers

11-Oct-2022

Microsoft Azure certified experts are in great demand, especially because Gartner listed it as the second most in-demand profession today. We've compiled a few of the most often asked Azure interview questions and answers questions for interviews for various job profiles in this blog post.  This compilation of the best  Microsoft Azure interview questions and answers for beginners and experienced candidates will serve as a comprehensive guide to anyone seeking employment in top firms.

Azure Interview Questions and Answers at Basic Level

1. Define Azure Cloud Service?

Multiple web applications can be delivered by cloud services in Azure, characterizing a number of pieces to distribute handling and enable flexible application growth. A cloud service consists of at least one online portion as well as specialized parts, each of which has its own unique application documentation and design. The ability to support more complicated multilayer systems is the primary advantage of cloud services.

2. Describe Azure DevOps?

A SaaS platform called Azure DevOps offers development services for making work schedules, collaborating on code, producing applications, and deploying them. It provides a full DevOps toolchain for software development and deployment. It is an excellent approach to setting up a DevOps toolchain because it can integrate with many widely used technologies on the market.

3. How will you classify Microsoft Azure from AWS?

Let us distinguish AWS from Microsoft Azure by comparing the following features in both the platforms

• Analytics-Microsoft: Azure Stream Analytics, while AWS: Amazon Kinesis
• Backup Options- Microsoft Azure has Azure Backup. AWS has Amazon Glacier
• Compliance- Microsoft Azure has Azure Trust Center while AWS has CLoudHSM
• Content Delivery Network (CDN)      Microsoft Azure has Azure CDN, While AWS has Amazon CloudFront
• Data Orchestration- Azure has Azure Data Factory. AWS has AWS Data Pipeline
• Hybrid Cloud Storage- Azure has StorSimple.AWS Storage Gateway
• Monitoring- Microsoft has Azure Operational Insights while AWS has Amazon CloudTrail
• NoSQL Database Options      Azure DocumentDB for Microsoft Azure and Amazon DynamoDB for AWS

4. Can you briefly explain Azure Active Directory (Azure AD)?

Microsoft offers a cloud-based IAM and directory called Azure AD. It combines identity protection, core directory services, and application access management into a unified solution. It makes it easier for staff members to log in and access resources like: 

• External resources, such as the Azure portal, Microsoft 365, and numerous SaaS applications
• Apps on a corporate intranet and network, as well as any cloud-based applications created by that firm, are examples of internal resources.

Azure AD is designed for the following uses and applications:

• Azure
• Office 365
• Microsoft 365,
•  Dynamics CRM online subscribers
•  IT administrators 
• App developers

5. Briefly illustrate Azure Data Factory?

A serverless and cloud-based platform and service for data integration called Azure Data Factory is used to build ETL and ELT pipelines. It aids in the development of data-driven workflows for the large-scale planning and execution of data transformation and transfer.

6. Describe Azure Databricks?

Azure Databricks can be simply defined as a data analytics platform that provides two distinctive settings for the creation of data-intensive applications, namely:

• SQL Analytics for Azure Databricks
• Databricks Workspace in Azure
• The integration of Azure Databricks with native cloud provider security, compute, analytics, storage, and AI services make it easier to combine data and AI workloads.

7. What is Azure Data Lake?

A cloud platform called Azure Data Lake offers limitless storage for organized, semi-structured, and unstructured data of all shapes and sizes, supporting Big Data Analytics.

8. What are Azure resources, exactly?

Azure resources can refer to any object that Azure manages. Here are a few instances of Azure resources: Virtual machines, virtual networks, and storage accounts are examples.

9. Explain the roles that are implemented in Windows Azure?

The roles implemented in Windows Azure can be categorized as under:

Web Role: It provides a front-end web solution. Similar to an ASP.NET application, this. While under facilitation, Azure delivers IIS and needed services.

Worker Role: Provides background service solutions. It can run extended activities.

Virtual machine role: Virtual machines are used to carry out both worker and web roles. The Azure Virtual Machine on which the worker and web roles are running can be changed by the client thanks to the Virtual Machine Roles.

10. Which three sections make up the Windows Azure platform?

Compute, Storage, and Fabric comprises the three main components of Windows Azure.

Microsoft Azure Compute: Windows Azure provides a code that the hosting environment can control. Through components, it provides the calculating benefit. Three different roles are supported by Windows Azure:

• Web roles supported by IIS7 and used for web application programming
• Worker roles are used to manage web roles at the foundational level.
• Applications running on Windows Server can be easily transferred to Windows Azure using virtual machine (VM) roles.

Azure Windows Storage: It offers four different kinds of storage services:

• Queues for communicating between worker roles and web sections
• Storing structural data in tables
• Use BLOBs (Binary Large Objects) to store large amounts of data, records, or contents.
• For setting up a page BLOB, Windows Azure Drives (VHD)is used. These can be downloaded and shared using BLOBs.

Microsoft Azure App Fabric: Five services are provided by AppFabric:

• Bus service
• Access
• Caching
• Integration
• Composite

11. Describe more about Windows Azure AppFabric?

You have the ability to collect diagnostic information from an application running in Windows Azure thanks to Windows Azure Diagnostics. Planning and evaluating capacity makes use of diagnostic data.

12. Differentiate Windows Azure Queues from Windows Azure Service Bus Queues?

The messaging within and among the services is reliable and thorough which is facilitated by Azure Queues. Additionally, they emphasize the simplicity of the rest-based get/put/peek interface. However, the larger windows Azure messaging architecture that enables queuing is enabled by Bus Queues.

13. What does Windows Azure's table storage entail?

There is a tonne of organized information stored in the Windows Azure Table storage service. Structured and Non-relational data are ideally stored in Windows Azure's Table. 

Table: A table is a grouping of objects. Because there is no set structure for items in tables, a single table can contain substances with various configurations of attributes. Many tables may be found in a single record.

Entity: Similar to a database entry, an entity is a configuration of properties. An entity can have a maximum size of 1 MB.

Properties: A name-value pair constitutes a property. Each entity may have up to 252 attributes for data storage. The three system properties that determine a segment key, a row key, and a timestamp are also included in every entity.

14. What does Azure's autoscaling mean?

Scaling out is a common term for scaling by additional instances. Additionally,  Windows Azure offers scaling up by using larger roles as opposed to more instances. We may regulate the execution of our Windows Azure application against its running costs by adding and removing role instances while it is active. The amount of manual work required to scale an application dynamically is decreased by using an autoscaling solution.

15. What characteristics does Windows Azure have?

On Microsoft data centers, Windows Azure runs and saves the information. The following are the specific characteristics of Window Azure:

• Websites give web designers the ability to put together their sites using PHP, ASP.NET, etc., and deliver them using Git, FTP, etc. 
• Microsoft SQL Server is used to create, expand, and scale the application into the cloud using SQL database, formerly known as Azure database.
• This is Microsoft's Platform as a Service, which facilitates automated deployment and tiered applications.

16. What feature differentiates a Private cloud from a Public Cloud?

Private clouds are those that are created just for a single company. They allow a business to use cloud apps while addressing issues with data security and control that commonly arise in a public cloud environment. Private clouds, also known as internal clouds or enterprise clouds, reside on the Intranet of the company or in a hosted data center where the data is secure.

Best Azure Interview Questions and Answers at Mid-level 

We have covered the basic level of Azure interview questions & answers. Let us now proceed to a little higher level with questions at the intermediate level. 

17. Define IaaS, PaaS, and SaaS?

IaaS which stands for Infrastructure as a Service provides a number of infrastructure-level features, including OS and network connectivity. It operates on a pay-per-use basis. It serves as a host for apps. Examples of this kind of infrastructure are Azure VM and VNET. 

PaaS stands for Platform as a service basically consists of underlying infrastructure and abstraction that speeds up application development by removing the hassle of hosting administration. PaaS examples may include Azure cloud services, Azure web apps, storage services, etc. 

Software as a Service or SaaS is simply employed by an organization in the service delivery paradigm used to supply these applications. SaaS is financed through subscriptions or advertisements. Gmail, Office 365, SharePoint Online, and other services are examples of SaaS.

18. Does the Azure Internal Load Balancer have a public DNS or IP address?

No. The Azure Internal Load Balancer only supports private IP addresses.

19. Explain Azure Resource Manager?

In Azure, administration and application deployment are provided via Azure Resource Manager. Building, altering, or deleting resources in the Azure subscription account is made easier by the management layer. It comes in handy during managing locks, access restrictions, and resource security.

20. Describe NSG?

ACL rules that allow or restrict network traffic to subnets, network interface cards (NICs) connected to a subnet, or both, are contained in the NSG or Network Security Group. When an NSG is attached to a subnet, all virtual machines in that subnet are subject to the ACL rules. By connecting the NSG directly to a certain NIC, the traffic to that NIC is restricted.

21. Describe Azure Redis Cache?

An in-memory Redis caching system from Azure called Azure Redis Cache aids in the performance optimization of web applications. For the initial request, information is retrieved from the backend database and put in the Redis cache. On subsequent queries, the Redis cache is used to retrieve the data. By utilizing Azure Cloud, Azure Redis cache offers robust and secure caching technologies.

22. Explain briefly the Azure storage key?

Depending on the needs of the project, an Azure storage key is utilized to verify access to data stored by the Azure storage service. For authentication, there are two categories of storage keys:

• Primary access
• Secondary access key to prevent application or website outages

23. Define CSPack?

The service package file is created by the command-line program CSPack, which also gets an application ready for deployment in Azure or Compute Emulator. The cloud service configuration file, or.cscfg file, created using CSPack is included in every project of the cloud service type. It keeps:

• The number of role instances deployed for each role
• Thumbprints on the certificate
• Individual or user-defined configurations

24. Explain the necessity of Azure Diagnostics API?

The Azure Diagnostics API makes it easier to collect diagnostic information from applications running on Azure, such as system event logs and performance monitoring. The cloud service responsibilities need Azure Diagnostics enabled. Using the gathered data, visual chart representations can be made in the future to improve monitoring and generate performance metric warnings.

25. What are the alternatives that Azure offers for deployment environments?

There are two environments for deployment:

Staging environment: This is where modifications to an application are tested before going live.

Applications are launched in the production environment, where target consumers can access them using DNS-friendly URLs.

26. What is Blob Storage Azure?

The cloud's object storage option is Azure Blob (binary huge object) storage. It is suitable for sending documents, media, or text straight to the browser and has the capacity to store vast amounts of unstructured data in text or binary format. The information is available everywhere. The containers and user accounts are connected to the blobs. This service can be categorized into three parts: 

• Storage account: This might be a Microsoft Azure-registered blob storage account or a standard storage account.
• Containers are used to aggregate blobs together. Blobs can be stored indefinitely in each container. The name of the container needs to be lowercase.
• A blob is any form of file or document, regardless of size. Azure supports the following three types of blobs:
• Blobby blocks: Up to 195GB of text and binary data, in 50,000 blocks no larger than 4 MB each
• Attach blobs: actions that are appended, such as logging data in log files
• Blobby pages: whenever you frequently read or write

27. Explain the role of instance in Azure?

A role instance is a virtual machine where running role configurations are used to execute application code. The definition of a role in cloud service configuration files also permits multiple instances of a role.

28. What is Windows Azure Portal?

A designer accesses the Windows Azure Portal through his or her web program and logs in using a Windows Live ID to execute an application. At that point, the user can decide whether to set up a hosting account for running programs, a storage account for storing data, or even both. A designer can use a Windows Azure Portal to submit apps to Windows Azure if they have a hosting account.

29. What are your understandings of hybrid clouds?

A hybrid cloud is made up of both internal and external cloud resources, combining private and public cloud resources. 

When you need to store sensitive information close at hand (private cloud) while using different services from a public cloud, this type of cloud is ideal.

30. Explain Azure Fabric?

Azure Fabric forms the core idea in Azure. It offers an Azure Fabric controller series as it manages or oversees the following:

• Each and every processing role and resource
• Activating and sending services
• Keeping track of each service's condition
• Resource allocation and release
• Establishing a VM, ending it, etc.
• The most automatic method for updating patches for the installed OS on a virtual machine

31. Define a storage key?

In order to control data based on our requirements, storage keys or access keys are used as a validation technique for accessing the storage services account. Although we will only use one access key to verify our application to the storage, Windows Azure gives us the option to provide a primary access key and a secondary access key. Giving the secondary access key is mostly done to keep the program from going offline.

32. Explain Windows Azure Traffic Manager?

It gives users the ability to manage how user traffic for deployed Azure cloud services is distributed. Azure offers three different types of load-balancing techniques. The manager who handles traffic routes Domain Name Service (DNS) inquiries on your domain names according to a routing policy and associates the DNS paths with the appropriate instances of your applications.

33. What does SQL Azure federation mean?

Scalability is achieved in SQL Azure by introducing organization. Managers and developers can scale information with the aid of a federation. It benefits managers by making information repartitioning and redistribution easier. It gives developers the ability to share and route information. It facilitates routing without a pause in the program.

34. Briefly explain SQL Azure Database?

The SQL Azure database is merely a means of connecting to cloud services so that your database can be stored there. The best way to use PaaS where you can have multiple databases on the same account is using Microsoft Azure. Similar to SQL Server, Microsoft SQL Azure features excellent accessibility, adaptability, and security at its heart. The Microsoft Azure SQL Database offers a feature that automatically creates backups of all active databases. To support the 1-hour recovery point goal (RPO) for Geo-Restore, a backup is regularly obtained and geo-repeated.

35. What kinds of storage areas are there in Windows Azure?

A component for storing large amounts of content or binary data, such as images, audio files, and visual documents, is provided by BLOBs. They can be acquired by using REST APIs and are scalable up to 200 terabytes.

Table: Tables are locations where information is stored as cloud characteristics across multiple devices.

Line: Enabling communication between Web and Worker Role instances is the only goal of a queue. They assist in storing messages that customers may access.

36. What are the steps involved in securing Azure functions?

The followings steps are followed to secure Azure Functions:

• Security Center
• Log and monitor
• HTTPS
• Function access keys
• Authentication/authorization
• Permissions
• Secret management
• Set up usage quotas
• Data validation
• Error handling
• Disabled remote debugging
• Restricted CORS access
• Store the data encrypted
• Secure deployment
• Deployment credentials
• Disabled FTP
• Secure scm endpoint
• Continuous security validation
• Network security

37. What does the term "table" mean in Windows Azure?

You can store your data in an Azure Storage type called a table. An entity is placed on a table and BLOBs are placed in a compartment.

The following are some of a table's main ideas:

• Tables enable the storage of organized data.
• A storage account can include 0 to n number of tables.
• Information is kept in tables as an accumulation of components.
• A key-value pair of characteristics and an important key make up an element.

38. What does Azure's Conditional Access mean?

Azure AD employs Conditional Access as a tool to make judgments, combine information, and enact corporate regulations. Through Conditional Access rules, one can install the appropriate access controls as needed to maintain the organization's security and avoid getting in the way of users when unnecessary.

39. When in Azure should you use a static IP address?

When the address connected to the device won't change, Azure uses a static IP address.

40. Explain the working mechanism of Azure Site Recovery?

On-premises computers are replicated to a backup data center and on-premises VMs and physical servers are replicated to Azure through the orchestration and automation of Site Recovery. It helps with business continuity and disaster recovery (BCDR) by allowing access to apps from the backup site in the event of a primary site outage.

41. What is the importance of using Azure CDN?

The bandwidth and load time are decreased via Azure CDN. Additionally, it aids in enhancing reactivity.

42. Describe Traffic Manager's advantages?

The advantages of Azure Traffic Manager are as follows:

Enhanced efficiency

There is no downtime while performing updates or maintenance.

On the Windows Azure portal, simple to configure

43. How would you distinguish a list from a library?

A Word, Excel, or PowerPoint document can be managed and stored using a library, which is an interface. A list, on the other hand, is a tabular representation of an object (with columns and rows). It is compatible with document attachments.

44. How many services does Azure provide?

Microsoft's data capacity is used by Azure, which has over 6,000 configurable solutions, to provide software, platforms, and infrastructure as a service (SaaS, PaaS, and IaaS).

45. How many different backup kinds are available in Azure?

Three different types of replications are included in Azure Backup to maintain the high availability of both storage and data. They are:

• Geo-Redundant Storage (GRS): this is the default and suggested option, geo-redundant storage. It duplicates data to a secondary region distance from the primary location.
• Locally-Redundant Storage (LRS): This creates three copies of the data in a storage scale unit inside a data center.
• Zone-redundant storage (ZRS): It has zero downtime and replicates the data in availability zones with local data residency.

That is all about Azure Interview Questions and Answers at the Intermediate level. We shall now move further with more challenging and advanced levels of Azure Interview Questions and Answers.

Azure Interview Questions and Answers at Advance Level

46. How can several virtual machines share files using a centralized system?

For data sharing among virtual machines that are set up using protocols like NFS, FTPS, SMB, etc., the Azure files system is utilized.

47. What does Azure's TFS build system entail?

The answer to an output is a build. The file you receive in Azure projects has a.cspkg extension; this indicates that a Cloud Service Package was used to install your cloud administration.

Build Servers: A build server is, in general, a computer where you store your deployment packages.

You must have at least one build machine in order to use Team Foundation Build. It's possible for this machine to be virtual or actual.

Create controllers The component of the build system that accepts build requests from any task inside the group project is the manufacturing controller. Each build controller is assigned to a single collection of team projects.

So, a balanced connection is maintained between a team project and a build controller.

Build Agents: The build system's components that focus more work on the processor are known as build agents.

48. Explain Azure App Service?

For experienced Developers, the Azure App service is a fully managed Platform-as-a-Service (PaaS) offering that provides a wide range of capabilities for use in integration, mobile, and online scenarios. For Enterprise Developers and System Integrators, mobile apps in Azure App Service provide a very flexible, globally accessible mobile application development platform that offers a wealth of capabilities to mobile engineers. 

49. What does Azure profiling entail?

Profiling is only a method for gauging an application's performance analysis. Usually, this is done to make that the application is strong enough to withstand heavy traffic. By gathering performance data from the program, the visual studio provides us with a variety of tools to do it, which also aids in problem-solving. When the profiling wizard is launched, it creates the execution session and gathers the sample's data.

The profiling reports are useful for:

Determining the application's longest-running tactics

Measuring the call stack's execution duration for each strategy

Evaluating memory usage

50. Define a cmdlet in Azure?

An easy-to-use command is known as a cmdlet and is used in the Microsoft PowerShell environment. In order to automate command-line scripts, Windows PowerShell calls upon the cmdlets. Additionally, they are automatically called by the Windows PowerShell runtime via the Windows PowerShell APIs.

51. Can you explain Windows Azure Scheduler?

Windows Azure Scheduler facilitates activities like calling HTTP/S endpoints or delivering a message on any schedule. With Scheduler, you can create cloud jobs that dependably call services both inside and outside of Windows Azure, execute those activities when you need them, set them for a future date, or repeat them on a regular basis.

52. How can an HDInsight Cluster be created in Azure?

Open the Azure portal, click on New, choose Data Services, and then select HDInsight to create an Azure HDInsight Cluster.

Hadoop is Apache Hadoop's native and default implementation. A Hadoop-based Apache open-source NoSQL database called HBase provides a lot of unstructured data with random access and reliable consistency. You can process data in real time with Apache Storm, a distributed, fault-tolerant, open-source processing engine.

53. What does the Azure Machine Text Analytics API do?

The content analysis web services integrated with Azure Machine Learning include the Content Analytics API. The API can be used to do tasks like sentiment analysis and key-phrase extraction on unstructured information.

The API retrieves a score in the range of 0 and 1. Scores close to 1 indicate an optimistic attitude, while those close to 0 indicate a negative attitude.

The benefit of this API is that the user only needs to supply the data and use the service to obtain the sentiment results—another new model doesn't need to be created and prepared.

54. What does Azure Websites' Migration Assistant tool do?

The IIS installation will be examined by the Migration Assistant tool, which will identify the sites that can be moved to the cloud and highlight any components that cannot be moved or are not supported by the platform.

After being disassembled, this tool will also generate the sites and databases that are included in the supplied Azure membership.

55. What distinguishes a private cloud from a public cloud?

A private cloud is implemented inside certain parameters like firewall settings and is completely monitored and checked by the users dealing with it in an enterprise. A public cloud is used as a service through the Internet by users.

56. What is a Service Level Agreement (SLA) for Azure?

The SLA guarantees that access to your cloud service will be kept up at least 99.95% of the time when you transmit two or more role instances for each role. Additionally, while a role instance's procedure isn't operating, identification and re-correction actions will begin 99.9% of the time.

57. How can an administrator be added to the Azure portal?

The owner role must be assigned to the Azure portal before an administrator can be added. It will only be able to manage the resources that have been allotted to it in the subscription. Follow these procedures to add an administrator:

• Log in to the Azure website.
• Select the subscription that the administrator needs access to from the Hub menu's Subscription section.
• From the subscription blade, select Access control (IAM), then click Add.
• Click on Owner under Select a role.
• Enter the email address of the user who will be designated as the owner here.
• Click the user, then choose select.

58. What is the process of SQL Management Studio to an Azure Database?

The Connect to Server dialogue box automatically appears when SQL Server Management Studio is launched for the first time. By selecting Object Explorer > Connect > Database Engine, you can also access it directly.

Then, fill up the Connect to Server window with the following data:

• Engine Database Type for servers
• Client Name Your Azure SQL Database or Azure Managed Instance name must be entered. Login for SQL Server Authentication Password for the server account User ID Put your server password in here. By selecting Choices, you can also decide to modify the other connection options.
• Following the completion of all relevant fields, click Connect.
• A prompt to configure the firewall settings occurs if they are not already set up. Once logged in, enter the credentials for your Azure account to configure the firewall rule. Next, select OK.
• Expand and browse Object Explorer for the server name, SQL Server version, and username to see if your Azure Database connection is active.

59. Explain the process in which a Virtual machine can be developed in Azure?

The steps listed below must be followed in order to build a VM on Azure:

• Register with Azure
• Log in to the Azure website.
• Type "virtual machines" into the search bar.
• Select Virtual machines under Services.
• On the Virtual Machines page, select Add.
• Select the appropriate subscription in the Project information section of the Basics page and then click Create a new resource group.
• Put myResourceGroup in the name field.
• The name of the virtual machine should be myVM under Instance information.
• Select your region, such as (US) East US.
• Choose Windows Server 2019 Datacenter for the image
• Default the remaining settings.
• Enter a username and password under an Administrator account.
• Select HTTP (80) and RDP (3389) for the "Select inbound ports" section under "Inbound port rules."
• The rest of this will continue by default.
• In the end, press the Review + Create button.

60. Illustrate the process of deploying SQL database on Azure?

The following steps are mandatory to deploy SQL database:

• Log in to the Azure portal.
• Select SQL Databases.
• Select Servers.
• For connecting to a server, click on its name. 
• Open SQL Server Management Studio configuration
• Use database services to connect (Typically, this occurs automatically)
• Lastly, click Connect.

61. Explain the process of creating a resource group in Azure?

Making a resource group in Azure is as follows:

• Register on the Azure website.
• Choose Resource groups from the menu on the left.
• Click Add on the Resource groups page.
• The fields require filling out in the following process:
• Choose your Microsoft Azure membership from the list.
• Resource collection name: Put in a distinct name.
• Regional resource details Choose a location
• Select Review + create
• Once confirmation has been successful, select Create to start creating your resource group.

62. What are the different storage services offered in Azure apart from Blob storage?

In addition to Blob storage, table storage, queue storage, and file storage, Azure also provides three different types of storage services.

Azure Table Storage: This NoQL-based key-value store enables the development of applications using semi-structured data. It is used in the below circumstances:

• When applications with flexible data schemas are required
• Enterprise-level data is the focus, and consistent models are strongly followed.
• Data is organized in tables as groups of things.

Azure queue storage: By creating adaptable and durable applications, the message queue system is able to manage heavy workloads.

• It assures the applications' scalability and reduces the likelihood of component failure
• The program uses queue monitoring to make sure the requirements are met.

Azure file Storage: It provides server message block (SMB) protocol file access and sharing. SMB 3.0 and HTTPS are used to safeguard the data.

• It enhances the functionality of on-premises applications
• Azure handles OS rollouts and hardware management.
• Azure Interview Questions Based on Scenario

63. In the absence of a server, how will Azure assist in running code?

Code can run on Azure Functions without a server. These services streamline challenging orchestration tasks. They aid in establishing connections with other services without requiring hard coding of integrations, hastening the development process.

Developers can spend more time and effort writing code for the business logic. With the aid of Azure Application Insights, you can examine and track the performance of your code as well as spot bugs and potential failure areas in different application parts.

64. What might have caused the client application to lose connection to the cache?

There are two potential causes:

Client-end

• Application redeployment
• Operational scaling by application
• Client-side networking layer modification
• Momentary issues with the client or the client-server network
• Exceeding bandwidth threshold restrictions

Server-end

• Sky Redis: A failover occurred for the cache service from the primary node to the backup node.
• Patching or maintenance was performed on the server instance where the cache was installed.

65. How can the high load problem on an application be resolved when there is no man assistance on the flow?

When there is a heavy load, Azure VM Scale Sets can be used to provide the appropriate parameters and circumstances and deploy a new VM.

A set of load-balanced virtual machines can be created and managed by a developer using VM Scale Sets. The scale sets can be set up to automatically modify the number of VMs in accordance with a specified timetable or the application's demand.

The use of scale sets ensures that the applications are highly available and makes it possible for huge VMs to be managed, updated, and configured centrally. Additionally, it facilitates the creation of large-scale applications using big workloads, big data, and computational loads. For Custom Images Azure Scale Sets accommodate up to 1,000 VMs and 600 VMs.

66. What will you do if your drive malfunctions?

The next actions must be taken in the event of a drive failure:

Make sure the drive is not installed to ensure that Azure Storage always works as intended.

Changing the drive will cause it to be remounted and formatted.

67. What would occur if the tone had the maximum number of failed Azure ID authentication attempts?

In this case, the Azure account will be locked based on the protocol's analysis of the entered IP address and password from which the login request was made.

68. How will you differentiate Azure Scale Sets from Availability Sets?

The significant variation between the two lies in the VMs. While Scale sets have identical VMs, Availability sets do not necessarily require VMs to be identical. Several other distinctions can be dissected in the following criteria:

• Default Domain: In scale sets, there are 5 update and fault domains while Availability sets features and 5 update domains, and 3 fault domains.
• Workload Type: Scale Sets are utilized in the events of unpredictable workloads that also need auto scalability. On the contrary, Availability sets are employed when there is the requirement of auto scalability. 
• Configuration Style: Scale sets feature VMs that are similar in configuration for similar images while Availability sets employ varying configurations and images. 
• VM Count: Scale sets have the flexibility of increasing or decreasing the VMs number as per the demand or the predetermined schedule. While in the Availability set, a VM can only be added during the period of creating the sets. 
• Distribution Style: The VMs in the Scale set could be split over several data centers or kept in a single one. The VMs in a data center are automatically distributed in Available sets.

69. What do application partitions represent?

The application partitions are directory partitions that are replicated to domain controllers since they are a component of the Active Directory system. A replica of the directory partition is typically kept on each domain controller involved in the directory partitioning procedure. Application partitions have the benefit of being replicable to any individual domain controller inside a forest, which reduces replication traffic. The application partitions can concentrate on just one domain area while the domain directory partitions transport all of their data to all of the domains. Application partitions become unnecessary and more available as a result.

70. How can the high load problem on an application be resolved when there is no man assistance on the flow?

When there is a heavy load, Azure VM Scale Sets can be used to provide the appropriate parameters and circumstances and deploy a new VM.

A set of load-balanced virtual machines can be created and managed by a developer using VM Scale Sets. The scale sets can be set up to automatically modify the number of VMs in accordance with a specified timetable or the application's demand.

The use of scale sets ensures that the applications are highly available and makes it possible for huge VMs to be managed, updated, and configured centrally. Additionally, it facilitates the creation of large-scale applications using big workloads, big data, and computational loads. Azure Scale Sets accommodate around 600 VMs for bespoke VM images and up to 1,000 VMs. 

71. What would occur if the tone had the maximum number of failed Azure ID authentication attempts?

In this case, the Azure account will be locked based on the protocol's analysis of the entered password and the IP address from which the login request was made.

72. Will you be able to access an application via the Azure environment in the event that the on-premise server application access fails if you have an application operating on the on-premise server and the Azure East US region has a backup?

Yes. The Azure Site Recovery Service can be used to access the application. Between on-premise servers and Azure environments, it can manage fail-over and fail-back scenarios.

73. How will you handle the Azure Connectivity if the front-end hosting of the application is done on Azure while the user needs the database hosting to be done on an on-premise server owing to security concerns?

The issue can be fixed by several ways including the following:

• One on-premises DB can be connected to an Azure-hosted application using the point-to-site service based on the Azure VNET architecture. This is true when using a VPN requires a lot of resources.
• Site-to-site or rapid routes are the answer when there are more resources needed for connection. Network latency may be impacted by site-to-site because the VPN only uses the internet as its public infrastructure. Express routes can be employed in that situation because they have a dedicated leased line that addresses latency problems.
• Windows Communication Foundation (WCF) services can be created and hosted on-premises if VNET is not preferred. It will feature CRUD operations made specifically for the locally hosted database. For Database access, it takes advantage of the service bus relay to establish a connection between the Azure-hosted app and the WCF service.

74. Differentiate PROC MEANS from PROC SUMMARY?

PROC MEANS: The subgroup statistician formed in the persistence of the BY statement that will be utilized is referred to as PROC MEANS. BY variables are used to pre-sort the data in this instance.

PROC SUMMARY: It is a statistical tool that allows all types of information to run simultaneously and is automatically generated for each subgroup. The data in the outlet is not original.

75. Why should one have a backend pool for load balancing and how do we configure load balancing?

A resource that assists in distributing the load among multiple servers is a load balancer. A frontend IP address, a backend pool, health probes, and load balancing rules are required in order to establish a load balancer. The backend pool is the intended machine for processing end-user requests; a load balancer cannot function without it.

76. What does Gateway Transit offer as a VNET option?

Gateway transit facilitates cross-premises or VNet-to-VNet communication by allowing one virtual network to use the VPN gateway in the peer virtual network. Only one of the virtual networks in the peering may have a gateway defined in order to use this setting. If the initial VNET already has a Site-to-Site VPN configured, it is to enable peered network to access on-premises servers.

77. What distinguishes a  Standard SSD from a premium SSD?

Premium SSD discs are the preferred disc type for all other production workloads because they outperform Standard SSD discs with extremely low latencies, high IOPS/throughput, and even higher consistency with provided disc performance.

78. How to grant access to one VM while denying it to another?

We can set inbound rules to allow or prevent access to particular virtual machines by utilizing Network security groups (NSG) or Application Security Groups (ASG).

79. How may deployment VMs and test VMs be distinguished when creating a VM?

While there is no specific or significant variation in the VM creation stage, a VM can be distinguished based on the apps it hosts, this only occurs once the VM is operational.

80. Is there a live feed available from an on-premises ad to an azure ad?

The program used to sync on-premises ad objects to Azure ad is called AD Connect.

Those are the best Azure interview questions and answers that prospective candidates may expect to be asked in their interview. This set of Azure interview questions and answers have been created to help candidate have thorough preparation and be able to crack their interview easily.

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