Windows Azure Interview Questions and Answers

Microsoft Azure is one of the leading cloud providers thriving with its prompt service worldwide. Microsoft Azure is a dominating service provider with a market share of 20.3% which is in regular terms to hire professionals. With 70 and above offering of compliance and 120,000 subscribers per month, it has ranked as the 2nd most dominating cloud service provider. We have compiled some of the common Azure interview questions that are most acceptable to understand all the basic and critical aspects to crack the interview. We present here the most frequently asked 100 questions with their appropriate answers that will enable you to crack the interview.

1. What is cloud computing?

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It is the use of servers on the internet to “store”, “manage” and “process” data. The difference is, instead of using your own servers, you are using someone else’s servers to do your task, paying them for the amount of time you use it for.

2. What is Azure Cloud Service?

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Cloud service can convey a multiple web application in Azure, characterizing a number of parts to disseminate handling and permit adaptable scaling of your application. A cloud service comprises a minimum of one web pars as well as specialist parts, each with its own particular application documents and design.The fundamental favourable position of cloud service is the capacity to help more complex multi-level structures.

3. What are the different cloud deployment models?

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Following are the three cloud deployment models:

Public Cloud: The infrastructure is owned by your cloud provider and the server that you are using could be a multi-tenant system.

Private Cloud: The infrastructure is owned by you or your cloud provider gives you that service exclusively. For eg: Hosting your website on your servers, or hosting your website with the cloud provider on a dedicated server.

Hybrid Cloud: When you use both Public Cloud, Private Cloud together, it is called Hybrid Cloud. For Example: Using your in-house servers for confidential data, and the public cloud for hosting your company’s public facing website. This type of setup would be a hybrid cloud.

4. What are the three principle segments of Windows Azure Platform?

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Windows Azure has three principle segments in Azure: Compute,Storage and Fabric.

Windows Azure Compute:

• Windows Azure gives a code that can be managed by the hosting environment. It gives calculation benefits through parts. Windows Azure backs 3 types of roles:
• Web roles utilized for web application programming and upheld by IIS7.
• Worker roles utilized for foundation handling of web roles.
• Virtual Machine (VM) roles utilized for moving windows server applications to Windows Azure in a simple way.

Windows Azure Storage:

• Queues for informing between web parts and worker roles.
• Tables for storing structural data.
• BLOBs (Binary Large Objects) to store content, records or vast information.
• Windows Azure Drives (VHD) to mount a page blob. These can be transferred and downloaded by means of blobs.

Windows Azure AppFabric provides 5 services:

• Service bus
• Access
• Caching
• Integration
• Composite

5.  I have some private servers on my premises, also I have distributed some of my workload on the public cloud, what is this architecture called?

Ans:

This type of architecture would be a hybrid cloud. Why? Because we are using both, the public cloud, and on premises servers i.e the private cloud. To make this hybrid architecture easy to use, wouldn’t it be better if your private and public cloud were all on the same network (virtually). This is established by including your public cloud servers in a virtual private cloud, and connecting virtual cloud with your on premise servers using a VPN (Virtual Private Network).

6.  What is the distinction between Windows Azure Queues and Windows Azure Service Bus Queues?

Ans:

 Azure Queues gives a solid, diligent messaging between and within the services. it also highlights a very straight forward rest- based get/put/peek interface

Bus Queues are a part of a more extensive Windows Azure messaging framework that supports queuing.

7. What is Microsoft Azure and why is it used?

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  As discussed above, the companies which provide the cloud service are called the Cloud Providers. There are a lot of cloud providers out there, out of them one is Microsoft Azure. It is used for accessing Microsoft’s infrastructure for the cloud.

8. What is table storage in Windows Azure?

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The Windows Azure Table storage service stores a lot of organized information. Windows Azure tables are perfect for putting away organized, non-relational data

Table: A table is a collection of entities.Tables don’t uphold a blueprint on elements, which implies a solitary tables can contain substances that have distinctive arrangements of properties. A record can contain numerous tables

Entity: An entity is an arrangement of properties, like a database row. An entity can be upto 1MB in size.

Properties: A property is a name-value pair. Every entity can incorporate up to 252 properties to store data. Every entity likewise has 3 system properties that determine a segment key, a row key, and a timestamp.

9. Which service in Azure is used to manage resources in Azure?

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Azure Resource Manager is used to “manage” infrastructures which involve a no. of azure services. It can be used to deploy, manage and delete all the resources together using a simple JSON script.

10. Which of the following web applications can be deployed with Azure?

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Microsoft also has released SDKs for both Java and Ruby to allow applications written in those languages to place calls to the Azure Service Platform API to the AppFabric Service.

11. What are the Features of Windows Azure?

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Windows Azure runs and stores the information on Microsoft datacenters.

The main Features are :

• Websites enable the designers to assemble the sites utilizing ASP.NET, PHP, etc and send these websites utilizing FTP, Git and etc
• QL Database, formally known as Azure database makes, broadens and scales the application into the cloud utilizing Microsoft SQL Server.
• This is Microsoft’s platform as a service that supports Multi-level applications and automated deployment.

12. What are Roles and why do we use them?

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Roles are nothing servers in layman terms. These servers are managed, load balanced, Platform as a Service virtual machines that work together to achieve a common goal.

There are 3 types of roles in Microsoft Azure:

• Web Role
• Worker Role
• VM Role

Let’s discuss each of these roles in detail:

Web Role: A web role is basically used to deploy a website, using languages supported by the IIS platform like, PHP, .NET etc. It is configured and customized to run web applications.

Worker Role: A worker role is more like an help to the Web role, it used to execute background processes unlike the Web Role which is used to deploy the website.

VM Role: The VM role is used by a user to schedule tasks and other windows services. This role can be used to customize the machines on which the web and worker role is running.

13. A _________ role is a virtual machine instance running Microsoft IIS Web server that can accept and respond to HTTP or HTTPS requests?

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The answer should be Web Roles, there are no roles such as Server or Client roles. Also, Worker roles can only communicate with Azure Storage or through direct connections to clients.

14. What are the differences between a public cloud and a private cloud?

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Private clouds are those that are constructed solely for an individual enterprise. They enable the firm to have applications in the cloud while tending to concerns with respect to data security and control that is frequently ailing in a public cloud environment. It is otherwise called an internal cloud or enterprise cloud and dwells on the organization’s intranet or hosted data center where the data is protected.

15. Is it possible to create a Virtual Machine using Azure Resource Manager in a Virtual Network that was created using classic deployment?

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This is not supported. You cannot use Azure Resource Manager to deploy a virtual machine into a virtual network that was created using classic deployment.

16. What is Windows Azure Portal?

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Windows Azure Portal:To run an application, a designer gets to the Windows Azure portal through his Web program, by logging in with a Windows Live ID. The User at that point picks whether to create a host account for running applications, a storage account for storing data or both. Once the designer has a host account, He can utilize a Windows Azure portal to submit applications to Windows Azure.

17. What are virtual machine scale sets in Azure?

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Virtual machine scale sets are Azure compute resources that you can use to deploy and manage a set of identical VMs. With all the VMs configured the same, scale sets are designed to support true autoscale, and no pre-provisioning of VMs is required. So it’s easier to build large-scale services that target big computers, big data, and containerized workloads.

18. What do you comprehend about Hybrid Cloud?

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  A Hybrid cloud is a blend of internal and external cloud services, a mix of a private cloud joined with the utilization of public cloud services. This kind of cloud is most appropriate when you need to keep the classified information in your vicinity (private cloud) and consume alternate services from a public cloud.

19. Are data disks supported within scale sets?

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Yes. A scale set can define an attached data disk configuration that applies to all VMs in the set. Other options for storing data include:

• Azure files (SMB shared drives)
• OS drive
• Temp drive (local, not backed by Azure Storage)
• Azure data service (for example, Azure tables, Azure blobs)
• External data service (for example, remote database)

20. What is an Availability Set?

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An availability set is a logical grouping of VMs that allows Azure to understand how your application is built to provide redundancy and availability. It is recommended that two or more VMs are created within an availability set to provide for a highly available application and to meet the 99.95% Azure SLA. When a single VM is used with Azure Premium Storage, the Azure SLA applies for unplanned maintenance events.

21. What are Fault Domains?

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  A fault domain is a logical group of underlying hardware that share a common power source and network switch, similar to a rack within an on-premise data-centers. As you 

create VMs within an availability set, the Azure platform automatically distributes your VMs across these fault domains. This approach limits the impact of potential physical hardware failures, network outages, or power interruptions.

22. What are Update Domains?

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An update domain is a logical group of underlying hardware that can undergo maintenance or can be rebooted at the same time. As you create VMs within an availability set, the Azure platform automatically distributes your VMs across these update domains. This approach ensures that at least one instance of your application always remains running as the Azure platform undergoes periodic maintenance. The order of update domains being rebooted may not proceed sequentially during planned maintenance, but only one update domain is rebooted at a time.

23. What are Network Security Groups?

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  A network security group (NSG) contains a list of Access Control List (ACL) rules that allow or deny network traffic to subnets, NICs, or both. NSGs can be associated with either subnets or individual NICs connected to a subnet. When an NSG is associated with a subnet, the ACL rules apply to all the VMs in that subnet. In addition, traffic to an individual NIC can be restricted by associating an NSG directly to a NIC.

24. Do scale sets work with Azure availability sets?

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Yes. A scale set is an implicit availability set with 5 fault domains and 5 update domains. Scale sets of more than 100 VMs span multiple placement groups, which are equivalent 

to multiple availability sets. An availability set of VMs can exist in the same virtual network as a scale set of VMs. A common configuration is to put control node VMs (which often require unique configuration) in an availability set and put data nodes in the scale set.

25. What are Storage keys?

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Storage keys or Access Keys are utilized as a validation mode for accessing the storage services account to control data based on our prerequisites. In Windows Azure we have an alternative to give a Primary Access Key and a Secondary Access Key, despite the fact that we will utilize a solitary access key to confirm our application to the storage. The primary reason to give the secondary access key is to avoid downtime to the application.

26. What is a break-fix issue?

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Technical problems are called break-fix issues, it is an industry term which refers to “work involved in supporting a technology when it fails in the normal course of its function, which requires intervention by a support organization to be restored to working order”.

27. What is Windows Azure Traffic Manager?

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It enables Users to control the distribution of user traffic of installed Azure cloud services.There are 3 distinctive load balancing strategies provided by Azure. The Manager who works on traffic applies a routing policy to the Domain Name Service (DNS) questions on your domain names and maps the DNS courses to the apt instances of your applications.

28. Why is Azure Active Directory used?

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Azure Active Directory is an Identity and Access Management system. It is used to grant access to your employees to specific products and services in your network. For example: Salesforce.com, twitter etc. Azure AD has some in-built support for applications in its gallery which can be added directly.

29.What is Federation in SQL Azure?

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Organization in SQL Azure is introduced for scalability. federation helps both managers and developers to scale information. It helps managers by making repartitioning and redistributing of information simpler. It enables developers in the layer of routing and sharing of information. It helps in routing without application downtime.

30. What happens when you exhaust the maximum failed attempts for authenticating yourself via Azure AD?

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We use a more sophisticated strategy to lock accounts. This is based on the IP address of the request and the passwords entered. The duration of the lockout also increases based on the likelihood that it is an attack.

31.What is SQL Azure Database?

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SQL Azure database is just an approach to get associated with Cloud Services where we can store our database into Cloud. Microsoft Azure is the most ideal approach to utilize PAAS where we can have different databases on a similar Account.

Microsoft SQL Azure has a similar component of SQL Server, i.e. high accessibility, versatility and security in the core. Microsoft Azure SQL Database has an element, it makes backups automatically of each active database. Consistently a backup is taken and geo-repeated to empower the 1-hour recuperation point objective (RPO) for Geo-Restore.

32. Where can I find a list of applications that are pre-integrated with Azure AD and their capabilities?

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Azure AD has around 2600 pre-integrated applications. All pre-integrated applications support single sign-on (SSO). SSO let you use your organizational credentials to access your apps. Some of the applications also support automated provisioning and de-provisioning.

33. What are the different Storages in Windows Azure?

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BLOB : BLOBs offer a component for storing a lot of content or binary data, for example, pictures, sound and visual documents. It can scale up to 200 terabytes and can be acquired by utilizing REST APIs

Table : Tables represents storage areas across machines for information that is in the form of properties on the cloud.

Line : The sole target of a Queue is to empower communication amongst Web and Worker Role instances. They help in storing messages that may be accessed to by a customer.

34. How can I use applications with Azure AD that I’m using on-premises?

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  Azure AD gives you an easy and secure way to connect to the web applications you choose. You can access these applications in the same way you access your SaaS apps in Azure AD, no need for a VPN to change your network infrastructure.

35. What is Azure Service Fabric?

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Azure Service Fabric is a distributed systems platform that makes it easy to package, deploy, and manage scalable and reliable micro-services. Service Fabric also addresses the significant challenges in developing and managing cloud applications. Developers and administrators can avoid complex infrastructure problems and focus on implementing mission-critical, demanding workloads that are scalable, reliable, and manageable. Service Fabric represents the next-generation middleware platform for building and managing these enterprise-class, tier-1, cloud-scale applications.

36. What is the concept of the table in Windows Azure?

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A table is one kind of Azure Storage, where you can store your information away. Blobs are put away in a compartment and Entity in a table.

Following are the key concepts in a table:

• Tables allow structure data storage .
• There can be 0..n tables in a storage account.
• Tables store information as an accumulation of elements .
• An element has an essential key and properties as a key-value pair.

37. What is a VNet?

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VNet is a representation of your own network in the cloud. It logically isolates your instances launched in the cloud, from the rest of your resources.

38. What is the TFS build system in Azure?

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A Build is the solution of an output. In Azure projects, you get the record with a .cspkg extension that implies a Cloud Service Package is utilized for the deployment of your cloud administrations.

Build Servers: In general terms a build server goes about as the machine where you put your deployment packages.

To utilize Team Foundation Build, you should have no less than one build machine. This machine can be a physical machine or a virtual machine.

Build Controllers: Manufacture Controllers are the component in the build system that accepts the build requests from any task inside the group project. Each build controller 

is dedicated to a solitary team project collection. So there is a balanced relationship between a team project and a build controller.

Build Agents: Build Agents are components in the build system that accomplishes more processor-concentrated work.

39. What are the differences between Subscription Administrator and Directory Administrator?

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By default, one is assigned the Subscription Administrator role when he/she signs up for Azure. A subscription admin can use either a Microsoft account or a work or school account from the directory that the Azure subscription is associated with. This role is authorized to manage services in the Azure portal. If others need to sign in and access services by using the same subscription, you can add them as co-admins.

Azure AD has a different set of admin roles to manage the directory and identity-related features. These admins will have access to various features in the Azure portal or the Azure classic portal. The admin’s role determines what they can do, like create or edit users, assign administrative roles to others, reset user passwords, manage user licenses, or manage domains.

40. What is profiling in Azure?

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Profiling is only a procedure of measuring the performance analysis of an application. It is normally done to guarantee that the application is sufficiently steady and can maintain 

overwhelming traffic. Visual Studio gives us different tools to do it by gathering the performance information from the application that likewise helps in the troubleshooting issues. Once the profiling wizard is run, it sets up the execution session and collects the data of the sample

The profiling reports helps in:

• Deciding the longest running strategies inside the application.
• Measure the execution time of every strategy in the call stack.
• Assess memory allocation.

41. Are there any scale limitations for customers using managed disks?

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Managed Disks eliminates the limits associated with storage accounts. However, the number of managed disks per subscription is limited to 2000 by default.

42. What is Cmdlet in Azure?

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A cmdlet is a lightweight command that is utilized as a part of the Microsoft PowerShell environment. The cmdlets are summoned by the Windows PowerShell to automate the scripts which are in the command line. The Windows PowerShell runtime additionally invokes them automatically through Windows PowerShell APIs.

43. What is the difference between Service Bus Queues and Storage Queues?

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The Azure Storage Queue is simple and the developer experience is quite good. It uses the local Azure Storage Emulator and debugging is made quite easy. The tooling for Azure Storage Queues allows you to easily peek at the top 32 messages and if the messages are in XML or Json, you’re able to visualize their contents directly from Visual Studio Furthermore, these queues can be purged of their contents, which is especially useful during development and QA efforts.

The Azure Service Bus Queues are evolved and surrounded by many useful mechanisms that make it enterprise worthy! They are built into the Service Bus and are able to forward messages to other Queues and Topics. They have a built-in dead-letter queue and messages have a time to live that you control, hence messages don’t automatically disappear after 7 days.

Furthermore, Azure Service Bus Queues have the ability of deleting themselves after a configurable amount of idle time. This feature is very practical when you create Queues for each user, because if a user hasn’t interacted with a Queue for the past month, it automatically gets cleaned up. It’s also a great way to drive costs down. You shouldn’t have to pay for storage that you don’t need. These Queues are limited to a maximum of 80gb. Once you’ve reached this limit your application will start receiving exceptions.

44. What is Windows Azure Scheduler?

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Windows Azure Scheduler enables you to invoke activities –, for example, calling HTTP/S endpoints or presenting a message on a storage queue on any schedule. With Scheduler, you make jobs in the cloud that dependably call services both inside and outside of Windows Azure and execute those jobs on demand, on a routinely repeating schedule, or assign them for a future date.

45. What is Azure Redis Cache?

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Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. Azure Redis Cache is based on the popular open-source Redis cache. It gives you access to a secure, dedicated Redis cache, managed by Microsoft, and accessible from any application within Azure. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial indexes with radius queries.

46. How can you create a HDInsight Cluster in Azure?

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To make an Azure HDInsight Cluster, open the Azure portal and then click on New, Data Services,then HDInsight.

Hadoop is the default and native execution of Apache Hadoop. HBase is an Apache open-source NoSQL database based on Hadoop that gives random access and solid consistency for a lot of unstructured data.

Storm is a distributed, fault tolerant, open-source computation system that enables you to process data in real time.

47. Why doesn’t Azure Redis Cache have an MSDN class library reference like some of the other Azure services?

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Microsoft Azure Redis Cache is based on the popular open source Redis Cache and can be accessed by a wide variety of Redis clients for many programming languages. Each client has its own API that makes calls to the Redis cache instance using Redis commands.

Because each client is different, there is not one centralized class reference on MSDN, and each client maintains its own reference documentation. In addition to the reference documentation, there are several tutorials showing how to get started with Azure Redis Cache using different languages and cache clients. To access these tutorials, see How to use Azure Redis Cache and click the desired language from the language switcher at the top of the article.

48. What is the Text Analytics API in Azure Machine?

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Content Analytics API is a part of content examination web administrations worked with Azure Machine Learning. The API can be utilized to analyze unstructured content for tasks, like, sentiment analysis and key phrase extraction.

The API restores a numeric score between 0 and 1. Scores near 1 show positive sentiment, while scores near 0 demonstrate negative sentiment. The upside of this API is that another new model need not be planned and prepared, the user just needs to bring the data and call the service to get the sentiment results.

49. What are Redis databases?

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Redis Databases are just a logical separation of data within the same Redis instance. The cache memory is shared between all the databases and actual memory consumption of a given database depends on the keys/values stored in that database. For example, a C6 cache has 53 GB of memory. You can choose to put all 53 GB into one database or you can split it up between multiple databases.

50. What is a Migration Assistant tool in Azure Websites?

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Migration Assistant tool will examine your IIS installation and recognize which sites can be migrated to the cloud, featuring any components which can’t be migrated or are unsupported on the platform.

Once broken down this tool will likewise create sites and databases provided under given Azure membership.

51. Is it possible to add an existing VM to an availability set?

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No. If you want your VM to be part of an availability set, you need to create the VM within the set. There is currently no way to add a VM to an availability set after it has been created.

52. What are the username requirements when creating a VM?

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Usernames can be a maximum of 20 characters in length and cannot end in a period (“.”).

53. What is Azure Service Level Agreement (SLA)?

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The SLA ensures that, when you send two or more role instances for each role, access to your cloud service will be maintained not less than 99.95 percent of the time. Additionally, identification and recorrection activity will be started 99.9 percent of the time when a role instance’s procedure isn’t running.

54. What are the password requirements when creating a VM?

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Passwords must be 12 – 123 characters in length and meet 3 out of the following 4 complexity requirements:

• Have lower characters
• Have upper characters
• Have a digit
• Have a special character (Regex match [\W_])

55. What is meant by Azure diagnostic?

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Azure diagnostics is an API based system that collects the data to diagnose the application which is constantly running. It tunes with the verbose monitoring by enabling roles of the cloud services.

56. How much storage can I use with a virtual machine?

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Each data disk can be up to 1 TB. The number of data disks which you can use depends on the size of the virtual machine.

Azure Managed Disks are the new and recommended disk storage offerings for use with Azure Virtual Machines for persistent storage of data. You can use multiple Managed Disks with each Virtual Machine. Managed Disks offer two types of durable storage options: Premium and Standard Managed Disks.

Azure storage accounts can also provide storage for the operating system disk and any data disks. Each disk is a .vhd file stored as a page blob.

57. What is auto scaling in Azure?

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Scaling by including extra instances is frequently referred to as scaling out. Windows Azure likewise supports scaling up by utilizing bigger role rather than more role instances. By adding and expelling role instances to our Windows Azure application while it is running, we can adjust the execution of the application against its running costs.

An autoscaling solution reduces the amount of manual work engaged in dynamically scaling an application.

58. How can one create a Virtual Machine in Powershell?

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59. What is meant by PaaS, SaaS, and IaaS?

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• PaaS stands for Platform as a Service that enables you to get a platform to deliver without directly giving authorization to the OS software.
• SaaS stands for Software as a Service is devoid of platform infrastructure software that can be used without direct purchase.
• IaaS stands for Infrastructure as a Service which enables you to get the hardware from the provider as the desired service which can be configured by the user.

60. How to create a Network Security Group and a Network Security Group Rule?

Ans:

# Create an inbound network security group rule for port 3389

# Create an inbound network security group rule for port 80

# Create a network security group

61. What are the advantages of cloud computing?

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There are several advantages of cloud computing which are as follows:

• The versatility of the system can be altered if the business requires certain modification.
• They are highly available which increases its end users to get benefited by every inch.
• The system is capable of tolerating fault of a single part and overcomes it by remaining completely functional.
• The service allows you to pay only when the system is in use. You can easily reallocate the system when you use them and get saved from the charge.
• The system has brought into light the payment for the operation rather than the investment in the machines.

62. How to create a new storage account and container using Powershell?

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63. What are the main functions of the Azure Cloud Service?

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The main functions of the Azure Cloud Service are:

• It is designed to host the running application and at the same time manage the background running application.
• The application of web processing is termed as “web role” whereas the background processing is termed as the “worker role”.

64. How can one create a VM in Azure CLI?

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65. State the purpose of the cloud configuration file?

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There is a primary .csfg file available with each and every cloud service. The main purpose of this file is

• They hold the main copy of certificates.
• They have the storage of user-defined settings.
• There are a number of instances in any service project.

66. How can you retrieve the state of a particular VM?

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67. Differentiate between the verbose and minimal monitoring.

Ans:

Verbose monitoring collects metrics based on the performance that enables close analysis of data that is fed during the processing of application whereas the minimal monitoring is a default configuration that makes the use of the performance counters 

gathered from the operating system of the host. Proceed to the more Azure cloud interview questions that are quite common.

68. How can you stop a VM using PowerShell?

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69. What is meant by the block blob and page BLOB?

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Blob is a block that is having a specific block ID. Each block in this block BLOB comprises the 4MB and maximum size of this BLOB limits to 200 GB. Whereas the Page blob contains pages in which data range is determined by the offsets. The maximum limit is 1TB where a single page is of the size 1TB.

70. What is meant by the DeadLetter queue?

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Messages are transferred to the DeadLetter queue in the following situation:

• When the delivery count has exceeded for a message that is on a queue.
• When the expiry date of the message has crossed and the entire expired message is held in a queue.
• When there is an evaluation exception set by default and the subscription is enabled with a dead letter filter.

71. Why was my client disconnected from the cache?

Ans:

The following are some common reasons for a cache disconnect.

 Client-side causes:

• The client application was redeployed.
• The client application performed a scaling operation.
• In the case of Cloud Services or Web Apps, this may be due to auto-scaling.
• The networking layer on the client side changed.
• Transient errors occurred in the client or in the network nodes between the client and the server.
• The bandwidth threshold limits were reached.
• CPU bound operations took too long to complete.

Server-side causes:

• On the standard cache offering, the Azure Redis Cache service initiated a fail-over from the primary node to the secondary node.
• Azure was patching the instance where the cache was deployed
• This can be for Redis server updates or general VM maintenance.

72. Explain the Window Azure platform?

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It is collectively a PaaS developed by Microsoft programmed to run a deployment vehicle and a runtime for the data center to host the cloud computing.

73. What is Azure Search?

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Azure Search is a cloud search-as-a-service solution that delegates server and infrastructure management to Microsoft, leaving you with a ready-to-use service that you can populate with your data and then use to add search to your web or mobile application. Azure Search allows you to easily add a robust search experience to your applications using a simple REST API or .NET SDK without managing search infrastructure or becoming an expert in search.

74. What are the sizes of the Azure VM?

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It is another basic question that finds its place in the series of top Microsoft Azure interview questions. The Windows Azure is destined to balance a variety of sizes. Most of the VM sizes are:

• The extra large computer has 8*1.6 GHz of Instance size, with instance storage of 2040 GB, CPU memory of 14 GB. The I/O performance is high.
• The large computer has 4*1.6 GHz of Instance size, with instance storage of 1000 GB, CPU memory of 7 GB. The I/O performance is high.
• The medium computer has 2*1.6 GHz of Instance size, with instance storage of 490 GB, CPU memory of 3.5 GB. The I/O performance is high.
• Small computer has 1.6 GHz of Instance size, with instance storage of 225 GB, CPU memory of 1.75 GB. The I/O performance is moderate.
• The extra small computer has 1.0 GHz of Instance size of 20 GB, with instance storage of 20 GB, CPU memory of 768MB. The I/O performance is low.

75. My web app still uses an old Docker container image after I’ve updated the image on Docker Hub. Does Azure support continuous integration/deployment of custom containers?

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Yes, it does. For private registries, you can update the container by stopping and then re-starting your web app. Alternatively, you can also change or add a dummy application setting to force an update of your container.

76. Differentiate between the repository and the powerhouse server?

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Repository servers are those which are in lieu of the integrity, consistency, and uniformity whereas the powerhouse server governs the integration of different aspects of the database repository.

77. What are the expected values for the Startup File section when I configure the runtime stack?

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For Node.Js, you specify the PM2 configuration file or your script file. For .NET Core, specify your compiled DLL name. For Ruby, you can specify the Ruby script that you want to initialize your app with.

78. What is meant by enterprise warehousing?

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It is the phenomenon where the data is developed by the organization having access at a single point throughout the globe. The warehousing enables the server to get linked to a single point with the assistance of periodic handling.

79. How are Azure Marketplace subscriptions priced?

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Pricing will vary based on product types. ISV software charges and Azure infrastructure costs are charged separately through your Azure subscription. Pricing models include:

BYOL Model: Bring-your-own-license. You obtain outside of the Azure Marketplace, the right to access or use the offering and are not charged Azure Marketplace fees for use of the offering in the Azure Marketplace.

Free: Free SKU. Customers are not charged Azure Marketplace fees for use of the offering.

Free Software Trial: Full-featured version of the offer that is promotionally free for a limited period of time. You will not be charged Azure Marketplace fees for use of the offering during a trial period. Upon expiration of the trial period, customers will automatically be charged based on standard rates for use of the offering.

Usage-Based: You are charged or billed based on the extent of your use of the offering. For Virtual Machines Images, you are charged an hourly Azure Marketplace fee. For Data Services, Developer services, and APIs, you are charged per unit of measurement as defined by the offering.

Monthly Fee: You are charged or billed a fixed monthly fee for a subscription to the offering (from the date of subscription start for that particular plan). The monthly fee is not prorated for mid-month cancellations or unused services.

80. What do you mean by lookup transformation?

Ans:

Lookup transformation aids to determine source qualifier. It can be active or passive lookup transformation. The process is yielded to get the access to the relevant information or the data.

81. What is the difference between “price,” “software price,” and “total price” in the cost structure for Virtual Machine offers in the Azure Marketplace?

Ans:

“Price” refers to the cost of the Azure Virtual Machine to run the software. “Software price” refers to the cost of the publisher software running on an Azure Virtual Machine. “Total price” refers to the combined total cost of the Azure Virtual Machine and the publisher software running on an Azure Virtual Machine.

82. What is meant by the connected lookups?

Ans:

In the unconnected lookup, the input is directly taken from the transformation that takes part in the flow of data. The connected data lookup is built as both a static and dynamic cache. This can be oriented via multiple ports that can give the output. It is defined by a user defined entity.

83. What is meant by the unconnected lookups?

Ans:

The answer to this Microsoft Azure interview question should be that in the unconnected lookups the input is taken by the LKP operation. Nature is dynamic, having a single output port. User-defined values are disregarded in the unconnected lookups.

84. What are stateful and stateless microservices for Service Fabric?

Ans:

  Service Fabric enables you to build applications that consist of microservices. Stateless microservices (such as protocol gateways and web proxies) do not maintain a mutable state outside a request and its response from the service. Azure Cloud Services worker roles are an example of a stateless service. Stateful microservices (such as user accounts, databases, devices, shopping carts, and queues) maintain a mutable, authoritative state beyond the request and its response. Today’s Internet-scale applications consist of a combination of stateless and stateful micro services.

85. What is meant by the command task?

Ans:

Command task is an operational window that sets off the flow of one or multiple command shells while the system is still running.

86. What is the meaning of application partitions?

Ans:

The application partitions are a part of the Active Directory system and having said so, they are directory partitions which are replicated to domain controllers. Usually, domain controllers that are included in the process of directory partitions hold a replica of that directory partition. The attributes and values of application partitions is that you can replicate them to any specific domain controller in a forest, meaning that it could lessen replication traffic. While the domain directory partitions transfer all their data to all of the domains, the application partitions can focus on only one in the domain area. This makes application partitions redundant and more available.

87. What are the PowerCenter commands that can be used in Informatica?

Ans:

The languages for transformation that can be provided with some basic comment signifiers that are:

• Slashes (//)
• Dashes (–)

If these common signifiers are absent in the line the power integration service will ignore the text.

88. What are special Azure Regions?

Ans:

Azure has some special regions that you may wish to use when building your applications for compliance or legal purposes. These special regions include:

• US Gov Virginia and US Gov Iowa
• A physical and logical network-isolated instance of Azure for US government agencies and partners, operated by screened US
• persons. Includes additional compliance certifications such as FedRAMP and DISA.
• China East and China North
• These regions are available through a unique partnership between Microsoft and 21Vianet, whereby Microsoft does not directly maintain the data centers.
• Germany Central and Germany Northeast
  These regions are available via a data trustee model whereby customer data remains in Germany under control of T-Systems, a Deutsche Telekom company, acting as the German data trustee.

89. What is the difference between copy and shortcut?

Ans:

There is no change that corresponds to the original object.

The shortcut is a dynamic link of the object that saves the space reflecting changes in the original object.

90. Discuss the different database types in SQL Azure?

Ans:

 Web Edition: It is having a limit of 5GB SQL that is related to the relational database. The basic advantage is that they can be self-maintained, tolerant to a fault and highly available.

Business-based Edition: they support 50GB of T-SQL that is self-managed, tolerant to a fault and highly available. They are suited for the custom web applications or ISV application.

91. How is Azure Resource Manager beneficial over the classic services?

Ans:

The benefits of the Azure Resource Manager that overshadows the benefit of the classic services are:

• The resources need not be managed, deployed or monitored one at a time. They are chain deployment activities throughout the lifecycle without the need for individual data handling.
• The data is also deployed at a consistent pace with the ARM service. It enables the user to use a declarative template that indicates the deployment.
• Since the role-based control is present in the management platform that provides you with the access to the resources that leads you to control.
• You can mark dependencies between the resources that enable you to get the correct order of deployment.
• The resources may be tagged and organized logically so that it is convenient to follow up the billing of your company.

92. Enlist the monitoring features that are present in the SharePoint 2010?

Ans:

This is one of the SQL Azure interview questions that should be answered by stating that the SharePoint 2010 is a diagnostic logging that takes into the data that is a direct indication of the state of the system. Sometimes it also specifies some timer tasks that are performed to monitor the collected information.

The features include:

• It collects the data on event log, timer service, and performance counter.
• They are involved with data that are search usage.
• They provide matrices that are yielding a collection of sites.

93. State the class that can be used to retrieve data?

Ans:

The class that can be used to get data from more than one list is the SPSite Data Query that is able to query data that are present in more than one list all across the diverse 

web collections. It is featured to aggregate data without the external links and only through the SharePoint.

94. Compare the STS and SPS and state its important features?

Ans:

SPS is the SharePoint Portal Service which manages the documents and has a search engine more efficient in penetrating the multiple sources of content.

STS stands for SharePoint team management. As the name suggests they are better for document management for a large organization and have a moderate search engine.

95. Explain MOSS?

Ans:

The answer to this SQL Microsoft Azure interview question for experienced will be MOSS is abbreviated for Microsoft Office SharePoint Server that constitutes a complete version of the portal platform that yields the user to manage, share and even create the document.

96. What is the difference between a library and a list?

Ans:

The library is an interface that yields one to manage and store a document that can be created using Excel, PowerPoint or Word. The list is the representation of the item in a tabulated format using column and rows. Lists are not used to make a document but can attach documents.

97. Describethe log analytics?

Ans:

The operational management service of Log Analytics provides the entire requirement that runs the particular service. It manifests automation, security, log analytics and availability at a particular dashboard. It generates Power data source that enables the user to get the visuals of the raw data. It is introduced in three different tiers of prices that include free, premium and standard. You enjoy the convenience of searching the data at a single dashboard and exporting the results.

98. Differentiate between the PROC SUMMARY and PROC MEANS?

Ans:

PROC MEANS: refers to the subgroup statistic created in the persistence of the BY statement that will be involved. The data here is sorted beforehand with the assistance of BY variables.

PROC SUMMARY: is the aid of statistics giving all varieties of information running simultaneously and is produced for every subgroup automatically. The information in the outlet is not created.

99. If the client gets disconnected from cache with the services state the probable cause?

Ans:

If the client gets disconnected the causal factor can be distributed into two categories

The cause on the operator side:

• There might be a failure in the transfer of the standard cache from one node to the other.
• While the service was processing and dispatching the cache got deployed.
• There was a server update or an automated VM maintenance
• The application of the client accidentally got redeployed.
• The application on the client side got auto-scaling.
• The layer of the network on the client side altered.
• There was a transient error on the network node.
• The bound operation took more time.
• The upper limit of the bandwidth was reached.