Azure has been listed as the second most dominating cloud provider for IAAS (Infrastructure as a Service), which means there is already a hunt begun for the Azure professionals by the companies who are looking for a candidate with sound knowledge of Azure.
And, if you are one among the candidates looking for a future career in cloud computing then, here is a chance for you to hit a home run.
Here, we present a compiled list of top Azure interview questions which will brush up your already acquaintance of Azure and make it easier for you to refer things in the nick of time. With Azure Certification there is much higher chance to get better job and higher salary along with that it will also help to crack the interview with ease.
Most Frequently Asked Microsoft Azure Interview Questions and Answers
-
Briefly explain the services offered in the cloud?
IAAS – Infrastructure as a service, and a server that you can configure on your will. Example – Azure Virtual Machine, Amazon EC2
PAAS – Platform as a service, Gives the platform to publish without allowing access to the underlying software or operating system. Example: Mobile Application in Azure, Web Apps.
SAAS – Software as a service, there is no infrastructure, no platform, only a simple software which can be used without purchase. Example: Launch of VM on Azure.
2. Explain the deployment models?
Public Cloud – The cloud provider owns the infrastructure and the server could be a multi-tenant system.
Private Cloud – The user and the cloud provider own the infrastructure.
Hybrid Cloud – When both the Public Cloud and Private Cloud are used together, it is called a Hybrid Cloud.
3. What do you mean by cloud computing?
Instead of using your own servers to “store”, “manage”, and “process” data, you use someone else’s servers and pay a certain amount for the time you use it. This use of servers on the internet is called cloud computing.
4. What is Microsoft Azure and what is its purpose?
Microsoft Azure is a cloud provider and is used to access Microsoft’s infrastructure for the cloud.
5. Name and explain the service that is used to manage resources in Azure?
Azure Resource manager is used to manage the resources in Azure.It handles the infrastructures that involve many Azure services.
It is used to manage, deploy and delete the resources using a JSON script.
6. List three web applications that can be deployed with Azure?
* ASP.NET
* PHP
* WCF
7. Explain what are Roles?
Roles are nothing but servers in simple terms. These are load balanced and managed.
They also act as a platform for Service virtual machines that work together to achieve the common goal.
8. List the types of roles and explain their uses?
* Web Role – This role is used to deploy a website using the languages that support the IIS platform like PHP, .Net and many others. It is customized and configured to run the web applications.
* Worker Role – This role is more like a help to the web role and is used to execute the background processes.
* Virtual Machine Role – This role is used by a user in order to schedule tasks and other windows.
9. Explain the virtual machine scale sets in Azure?
They are the Azure compute resources that are used to deploy and manage a set of identical virtual Machines.
10. Explain Availability set?
It is a logical grouping of Virtual Machines that allow Azure to know and understand the application’s development in order to provide viability and redundancy.
11. Explain Break-fix issue?
The Break-fix issue is an industry term that refers to “work involved in supporting a technology and when the technology fails in an absolutely normal course of its functioning, it will require intervention by a support organization to restore the working order”. In short, it can be referred to as a technical problem.
12. Define Network Security Groups?
The NSGs contains a list of ACLs (Access Control List) rules that either allow or deny the network traffic to subnet, NICs or both. They can be associated with either NICs or subnets or both.
When associated with a subnet, the Access control rules apply to all the Virtual Machines in the subnet and when associated with the NIC, traffic to the individual NIC can be restricted.
13. Explain VNet?
It is basically a representation of your network in the cloud. It logically isolates all the instances you launched on the cloud from all your other resources.
14. Why do we use Azure Active Directory?
It is an identity and access management system that is used to grant access to the employees and to the specific products and services in the network.
15. Can you explain Azure Service Fabric?
It is a distributed system platform, which makes it easy to pack, deploy and manage the micro services.
It represents the future generation platform to develop and manage the tier-1, enterprise-class, cloud-scale applications and more.
16. Define the Azure Redis Cache?
Redis is a BSD licensed open source, in-memory data structure store and is used as a cache, a database and message broker.
The Azure Redis is based on an open-source Redis cache. This allows you to access the dedicated Redis cache which is managed by Microsoft and can be accessed by any application in Azure.
The data structures like hashes, sets, strings, queries, hyperloglogs and geospatial indexes with radius queries and many others are supported by the Azure Redis Cache.
17. Explain Redis Databases?
They are nothing but a logical separation of data within the same Redis instance.
The databases share the cache memory among them and the actual memory consumption depends on the keys/values that are stored in the database.
18. Can you explain the Username and Password requirements when creating a Virtual Machine?
Username Requirements – The Username’s length can be of maximum 20 characters and can’t end in a period (“.”).
Password Requirements –The password must be a minimum of 12 characters and a maximum of 123 characters in length.
It should satisfy at least 3 conditions out of the 4 given below:
* Must contain Lowercase characters
* Must contain Uppercase characters
* Must contain a digit
* Must contain a special character