Azure Interview Questions

Azure interview questions

When you want to crack an interview, preparation is the essential thing that you need to focus on and we do understand the necessity of it. Therefore, our experts and professionals come with the relevant Azure interview questions and answers that will help you in cracking the interviews with ease so that you can get into a job smoothly. There will not much of hassles or issues in learning the questions and answers that we prepare as it is quite self-explanatory and easy to remember. So, what are you waiting for? Just start learning from today onwards.

About Azure

Azure is basically a cloud computing format service that is introduced by Microsoft to build, test, deploy, and manage all the tools and services through the data centers that are controlled by Microsoft. It offers SaaS (Software as a Service), PaaS (Platform as a Service), and IaaS (Infrastructure as a Service), and is known to support lots of various programming languages, applications, and frameworks that include both the Microsoft-based and third-party application centers or systems. It was launched in the year of October 2008 and since then it is known to dominate the market because of the types of services it offers.

Best Azure Interview Questions of 2020

1. What is Microsoft Azure?

The companies, which provide the cloud services to businesses, are called Cloud Providers, and one of them is Microsoft Azure. Microsoft Azure is an expanding cloud computing service created by Microsoft for testing, building, managing, and deploying applications and services via a global network of data centers managed by Microsoft. It is basically and widely used for accessing Microsoft’s infrastructure for the cloud by businesses.

2. What is the Windows Azure portal?

The developers, who have a hosting account, can use a Windows Azure portal to submit applications to Windows Azure. A developer can easily access the Windows Azure portal through the Web browser, by signing in with a Windows Live ID to run an application.

3. What is the Azure Fabric?

The Azure fabric is the main core concept over here. It provides a service called the Azure Fabric Controller. It is called an operating system for the Azure. Because it handles or manages the following:

  • All roles (computing) and resources.
  • Deployment and activating services.
  • Health monitoring for all services.
  • Allocating, releasing of resources.
  • Provisioning VM, terminating, etc.
  • Updating patches for installed OS on Virtual Machine automatically.

In this case, it is generally better to have two instances of roles, and there is no need for the customer to worry about software updates for the user.

4. Explain what is Diagnostics in Windows Azure?

Windows Azure Diagnostics provides facility to store diagnostics data. Some diagnostics data is stored in a table, while some are stored in a blob. For collecting the data on diagnostics, the user must initialize the Windows Azure diagnostic monitor. The Windows Azure diagnostic monitor runs in Windows Azure as well as in the computer’s emulator and collects diagnostic data for a role instance.

5. Explain what is Federation in SQL Azure?

Federation is introduced in SQL Azure for scalability. It helps administrators by making repartitioning and redistributing of data easier and thus, helps with scaling data. It helps developers in the routing layer and the sharding of data. It helps in routing without application downtime. Federation does basic scaling of objects in a SQL Azure Database. Federations are the partitioned data. There can be multiple Federations within a database. Moreover, each Federation represents a different distribution scheme. We create a Federation with a different distribution scheme and requirement. Student and Grade’s tables of a School Database may have a different distribution requirement, so they are put into different Federations.

6. What is Windows Azure Traffic Manager?

The Traffic Manager allows users to control the distribution of user traffic of deployed Azure cloud services, Azure websites or any other endpoint. In this, the distribution of traffic includes Azure cloud services, Azure websites, and other endpoints. There are three different load-balancing methods provided by Azure. The Traffic Manager applies an intelligent routing policy engine to the Domain Name Service (DNS) queries on the domain names and then maps the DNS routes to the apt instances of the required applications.

7. Explain what is Auto-Scaling in Azure?

Scaling by including extra instances is frequently referred to as scaling out. Windows Azure similarly supports scaling up by employing a bigger role instead of more role instances. By adding and expelling role instances to your Windows Azure application while it is running, you can adjust the execution of the application against its running costs. An auto-scaling solution simply diminishes the amount of manual work engaged in dynamically scaling an application.

8. What Is Fabric?

In the Windows Azure cloud fabric is nothing but a combination of many virtualized instances which run client application.

9. How Many Instances Of A Role Should Be Deployed To Satisfy Azure Sla (service Level Agreement) ? And What’s The Benefit Of Azure Sla?

TWO. And if we do so, the role would have external connectivity at least 99.95% of the time.

10. What Are The Options To Manage Session State In Windows Azure?

Windows Azure Caching

SQL Azure

Azure Table

11. What Is Cspack?

It is a command-line tool that generates a service package file (.cspkg) and prepares an application for deployment, either to Windows Azure or to the compute emulator.

12. What Is Csrun?

It is a command-line tool that deploys a packaged application to the Windows Azure compute emulator and manages the running service.

13. What Is Guest Os?   

It is the operating system that runs on the virtual machine that hosts an instance of a role.

14. How To Programmatically Scale Out Azure Worker Role Instances?

Using AutoScaling Application Block.

16. What Is Web Role In Windows Azure?

Web roles in Windows Azure are special purpose, and provide a dedicated Internet Information Services (IIS) web-server used for hosting front-end web applications. You can quickly and easily deploy web applications to Web Roles and then scale your Compute capabilities up or down to meet demand.

17. What Is The Difference Between Public Cloud And Private Cloud?

Public cloud is used as a service via Internet by the users, whereas a private cloud, as the name conveys is deployed within certain boundaries like firewall settings and is completely managed and monitored by the users working on it in an organization.

18. What Is Windows Azure Diagnostics?

Windows Azure Diagnostics enables you to collect diagnostic data from an application running in Windows Azure. You can use diagnostic data for debugging and troubleshooting, measuring performance, monitoring resource usage, traffic analysis and capacity planning, and auditing.

19. What Is Blob?

BLOB stands for Binary Large Object. Blob is file of any type and size.

The Azure Blob Storage offers two types of blobs:

1. Block Blob
2. Page Blob

URL format: Blobs are addressable using the following URL format:

http://.blob.aaa.windows.net//

20. What Is The Difference Between Block Blob Vs Page Blob?

Block blobs are comprised of blocks, each of which is identified by a block ID.

You create or modify a block blob by uploading a set of blocks and committing them by their block IDs.

If you are uploading a block blob that is no more than 64 MB in size, you can also upload it in its entirety with a single Put Blob operation. -Each block can be a maximum of 4 MB in size. The maximum size for a block blob in version 2009-09-19 is 200 GB, or up to 50,000 blocks.

Page blobs are a collection of pages. A page is a range of data that is identified by its offset from the start of the blob. To create a page blob, you initialize the page blob by calling Put Blob and specifying its maximum size.

-The maximum size for a page blob is 1 TB. A page written to a page blob may be up to 1 TB in size.

what to use block blobs for: streaming video. “The application must provide random read/write access” which is supported by Page Blobs

21. What Is The Difference Between Windows Azure Queues And Windows Azure Service Bus Queues?

Windows Azure supports two types of queue mechanisms:

Windows Azure Queues and Service Bus Queues .

Windows Azure Queues: which are part of the Windows Azure storage infrastructure, feature a simple REST-based Get/Put/Peek interface, providing reliable, persistent messaging within and between services.

Service Bus Queues: are part of a broader Windows Azure messaging infrastructure that supports queuing as well as publish/subscribe, Web service remoting, and integration patterns.

22. What Is Deadletter Queue?

Messages are placed on the deadletter sub-queue by the messaging system in the following scenarios.

  • When a message expires and deadlettering for expired messages is set to true in a queue or subscription.
  • When the max delivery count for a message is exceeded on a queue or subscription.
  • When a filter evaluation exception occurs in a subscription and deadlettering is enabled on filter evaluation exceptions.

23. What Are Instance Sizes Of Azure?

Windows Azure will handle the load balancing for all of the instances that are created. The VM sizes are as follows:

Compute Instance Size CPU Memory Instance Storage I/O Performance

  •  Extra Small 1.0 Ghz 768 MB 20 GB Low
  •  Small 1.6 GHz 1.75 GB 225 GB Moderate
  •  Medium 2 x 1.6 GHz 3.5 GB 490 GB High
  •  Large 4 x 1.6 GHz 7 GB 1,000 GB High
  •  Extra large 8 x 1.6 GHz 14 GB 2,040 GB High

24. What Is Table Storoage In Windows Azure?

The Windows Azure Table storage service stores large amounts of structured data.

The service is a NoSQL datastore which accepts authenticated calls from inside and outside the Windows Azure cloud.

Windows Azure tables are ideal for storing structured, non-relational data

Table: A table is a collection of entities. Tables don’t enforce a schema on entities, which means a single table can contain entities that have different sets of properties. An account can contain many tables

Entity: An entity is a set of properties, similar to a database row. An entity can be up to 1MB in size.

Properties: A property is a name-value pair. Each entity can include up to 252 properties to store data. Each entity also has 3 system properties that specify a partition key, a row key, and a timestamp.

Entities with the same partition key can be queried more quickly, and inserted/updated in atomic operations. An entity’s row key is its unique identifier within a partition.

25. Difference Between Web And Worker Roles In Windows Azure?

The main difference between the two is that an instance of a web role runs IIS, while an instance of a worker role does not. Both are managed in the same way, however, and it’s common for an application to use both.For example, a web role instance might accept requests from users, then pass them to a worker role instance for processing.

26. What Is Azure Fabric Controller?

The Windows Azure Fabric Controller is a resource provisioning and management layer that manages the hardware, and provides resource allocation, deployment/upgrade, and management for cloud services on the Windows Azure platform.

27. What is an Availability Set?

An availability set is a logical grouping of VMs that allows Azure to understand how the application for a user is built to provide redundancy and availability. It is recommended that two or more VMs be 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.

29. Do scale sets work with Azure availability sets?

A scale set is an implicit availability set with five fault domains and five 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 availability set and put data nodes in the scale set.

29. Explain what a break-fix issue is?

Technical problems in Azure 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.

30. State the difference pricing model of Microsoft Azure

Here, are different pricing model of Microsoft Azure:

BYOL Model: It brings your license model. It is just right to access model. You can obtain it outside of the Azure Marketplace. This model is not charged any fees.

Free Software Trial: It is a full-featured version which is promotionally free for a limited period of time. However, for excessive use, you need to pay fees.

Usage-based: This is a widely used model of Microsoft Azure. Here, user are changed for only that service which is used by them.

Monthly fee: Here, you need to pay a fixed monthly payment for a subscription.

Career scopes and salary scale

As most of the institutions in the current day depend on the software that is managed by Microsoft, there are lots of companies who are hiring software developers who possess good skills and expertise in managing this product. Therefore, if you know that you have the right skills and expertise to work on this platform, then try to apply for jobs in your country as there are lots of scopes and opportunities available for you. For a fresher, he or she can grab this opportunity to earn about 86,900 dollars to 90,000 dollars per year, while an experienced worker can earn up to 214,500 dollars per year.

Conclusion

What you need to do is starting preparing using our Azure Interview questions and answers and we assure you that you will easily convince the interviewers. In case of any issues or questions, you can drop us a message at any given time.

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