Got an upcoming Azure IaaS interview? Wondering what questions might come up? You are in the right place! In this blog, we will cover over 25+ key Azure IaaS interview questions and answers.
With easy-to-understand answers – you will be able to walk into your interview with confidence – knowing exactly what to expect and how to respond.
Fun Fact: Azure’s customer base increased by 14.2% from 2023 to 2024.
Azure IaaS Interview Questions for Freshers
Here are some common Azure IaaS interview questions and answers for freshers.
- What is Azure IaaS?
Azure IaaS (Infrastructure as a Service) is a cloud computing service that provides virtualized computing resources over the internet. It allows businesses to rent virtual machines, storage, and networking.
- What are the key benefits of Azure IaaS?
The key benefits include scalability, flexibility, cost-efficiency, and no need to manage physical hardware. It allows businesses to quickly scale up or down based on their needs.
- What is a virtual machine in Azure IaaS?
A virtual machine (VM) in Azure IaaS is a software-based computer that runs applications and processes just like a physical computer but is hosted in the cloud.
- How does Azure IaaS handle storage?
Azure IaaS provides multiple storage options, including Azure Blob Storage for large amounts of unstructured data, and Azure Disk Storage for persistent data that needs to be attached to VMs.
- What is a load balancer in Azure IaaS?
A load balancer in Azure IaaS distributes incoming network traffic across multiple virtual machines to ensure availability and prevent overload on a single machine.
- What is the role of Azure Networking in IaaS?
Azure Networking allows resources in Azure IaaS to communicate securely and efficiently. It includes virtual networks, VPNs, and DNS, enabling smooth connectivity between cloud services and on-premises resources.
- What are Azure Resource Groups?
Azure Resource Groups are containers for organizing and managing Azure resources. They help with grouping related resources, making it easier to manage permissions and lifecycle.
Interview Questions on Azure IaaS for Experienced Candidates
These are some important Azure IaaS interview questions and answers for experienced.
- What is the difference between Azure IaaS and Azure PaaS?
Azure IaaS provides virtualized computing resources, such as virtual machines and storage, while PaaS offers a complete platform with tools to develop, run, and manage applications without handling infrastructure.
- How do you secure virtual machines in Azure IaaS?
To secure VMs, we use network security groups (NSGs) to control inbound and outbound traffic, implement Azure Firewall for enhanced security, and regularly patch the VMs to protect against vulnerabilities.
- Explain the concept of scalability in Azure IaaS.
Scalability in Azure IaaS allows you to increase or decrease resources based on demand. You can scale up (add more power to a VM) or scale out (add more VMs) to handle varying workloads.
- What is Azure Availability Set and how does it work?
An Azure Availability Set is used to make sure that VMs are distributed across different physical servers. This helps improve the availability of applications by protecting against hardware failures.
- How does Azure IaaS manage disaster recovery?
Azure IaaS offers disaster recovery through Azure Site Recovery. This service replicates your workloads to a different region, allowing for quick failover in case of an outage.
- What are Azure Load Balancers and how are they used?
Azure Load Balancers distribute traffic between multiple VMs. It supports both internal load balancing (for applications within a VNet) and external load balancing (for public-facing applications), ensuring high availability.
- Can you explain Azure Virtual Network Peering?
Azure Virtual Network Peering connects two or more virtual networks in the same region or across regions. It allows seamless communication between resources in different VNets while maintaining security.
Azure IaaS Interview Questions – Scenario Based
Let’s take a look at some scenario based Azure IaaS interview questions and their answers.
- You have multiple virtual machines in Azure, but one of them is experiencing high CPU usage. How would you address this issue?
“First, I would check the VM’s performance metrics in Azure Monitor to confirm the high CPU usage. I would then review the VM’s workload and adjust the resources, such as scaling the VM up or out if necessary. If needed, I would also check for any unnecessary background processes or running applications that may be causing the issue. Additionally, I’d review the VM’s disk and memory usage for possible bottlenecks.”
- A company needs to migrate its on-premises infrastructure to Azure, but they are worried about downtime. How would you manage the migration to minimize downtime?
“I would use Azure Site Recovery for the migration. This tool allows for replication of on-premises VMs to Azure while the on-premises systems continue running. After the replication is complete, I’d perform a failover to Azure with minimal downtime. I would also conduct thorough testing to make sure the environment is ready before making the final switch.”
- You are tasked with setting up an Azure IaaS solution for a web application with high traffic. How would you configure the virtual machines?
“I would set up multiple virtual machines across different availability zones for redundancy. I’d use Azure Load Balancer to distribute traffic evenly across the VMs. I would also configure auto-scaling to adjust the number of VMs based on traffic demands. Lastly, I’d implement Azure Monitoring to keep track of the application’s performance and health.”
- Your company requires a secure connection between their on-premises network and Azure virtual network. What would you set up?
“I would set up a VPN gateway to create a secure, encrypted connection between the on-premises network and Azure. This would allow for seamless communication between resources in the on-premises environment and those in Azure. I would configure the VPN to guarantee high availability and proper routing.”
Also Read - Top 100+ AWS Interview Questions and Answers
Azure IaaS Admin Interview Questions
Here are some common Azure IaaS admin interview questions and answers.
- How do you manage and monitor the resources in Azure IaaS?
“I would use Azure Monitor to track the performance and health of resources. Azure Resource Manager (ARM) templates would help automate the deployment and management of resources. Additionally, I would use Azure Automation to manage routine administrative tasks.”
- What is your approach to managing network security in Azure IaaS?
“I would use Network Security Groups (NSGs) to control inbound and outbound traffic to and from VMs. I’d configure these NSGs to allow only necessary traffic, reducing exposure to potential attacks. Additionally, I’d implement Azure Firewall for added protection.”
- How do you handle storage management in Azure IaaS?
“I would choose appropriate storage solutions based on the workload, such as Blob Storage for large amounts of unstructured data and Azure Disk Storage for persistent data. I would also configure storage redundancy options, like Geo-Replication, to safeguard against data loss.”
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Microsoft Azure IaaS Interview Questions and Answers
Here are some important Microsoft Azure IaaS interview questions and their answers.
- How does Azure IaaS support scalability?
Azure IaaS supports scalability by allowing you to adjust resources based on your needs. You can scale up by increasing the size of your virtual machines (VMs) or scale out by adding more VMs. Azure Load Balancer helps distribute traffic evenly across multiple VMs, improving performance. Azure also provides auto-scaling options to automatically adjust the number of VMs based on traffic or usage.
- Can you explain how Azure Virtual Machines are priced?
Azure Virtual Machines are priced based on factors such as the size of the VM, the region where it is deployed, and the operating system. Pricing also depends on the number of hours the VM is running. You can choose between pay-as-you-go or reserved instances to manage costs. Azure also offers discounts for long-term commitments, helping reduce the overall cost.
- What is the role of Azure Resource Manager in managing Azure IaaS resources?
Azure Resource Manager (ARM) helps you manage Azure resources through a unified API. It allows you to organize resources into resource groups, making them easier to manage. ARM also handles deployment and access control, using role-based access control (RBAC). You can automate the deployment of resources through ARM templates, saving time and reducing errors.
Also Read - Top 35+ Azure Databricks Interview Questions and Answers
Azure IaaS Interview Questions – MCQs
Here are some important Azure IaaS interview questions and their answers.
- What is the primary benefit of using Azure IaaS?
A) Requires physical hardware
B) Provides virtualized computing resources over the internet
C) No flexibility for scaling
D) Limited to a specific operating system
Answer: B) Provides virtualized computing resources over the internet
- Which of the following is a benefit of using Azure IaaS over traditional on-premises infrastructure?
A) Complete control over hardware
B) Ability to scale up or down based on demand
C) Limited customization
D) Only available for large enterprises
Answer: B) Ability to scale up or down based on demand
- What is Azure Managed Disks used for in IaaS?
A) Providing a secure network connection
B) Managing virtual machine storage automatically
C) Handling VM load balancing
D) Automating virtual machine deployment
Answer: B) Managing virtual machine storage automatically
- Which feature of Azure IaaS ensures high availability of virtual machines during failures?
A) Azure VPN Gateway
B) Availability Sets
C) Azure Monitor
D) Azure Blob Storage
Answer: B) Availability Sets
- What does the Azure Virtual Network (VNet) allow you to do?
A) Manage storage and backup
B) Control network traffic for VMs and applications
C) Deploy virtual machines
D) Provide access to Azure services only
Answer: B) Control network traffic for VMs and applications
Also Read - Top 35+ Azure Data Factory Interview Questions and Answers
Tips to Answer Azure IaaS Interview Questions
Follow these tips when answering Azure IaaS interview questions.
- Be clear and concise: Keep your answers focused and to the point.
- Explain concepts simply: Use easy-to-understand language for complex topics.
- Use examples: Relate answers to real-world scenarios when possible.
- Stay updated on Azure features: Keep current with Azure’s latest updates and features.
- Be ready for practical questions: Practice answering scenario-based questions with clear solutions.
Also Read - Top 25+ Azure Data Engineer Interview Questions and Answers
Wrapping Up
So, these are the top 25+ Azure IaaS interview questions and answers to help you prepare. Whether you are a fresher or an experienced professional – understanding these concepts will boost your confidence. Ready to take your career further? Visit Hirist, the leading online job portal, to find the best IT jobs in India. You can find Azure IaaS roles and take the next step towards your dream job!
