Azure VM Scale Sets (VMSS) | Complete Hands-On Lab | AZ-104

Learn how to create, configure, manage, and scale *Azure Virtual Machine Scale Sets (VMSS)* in this step-by-step hands-on lab for the *AZ-104 Microsoft Azure Administrator* certification.

In this practical demonstration, you'll learn how Azure VM Scale Sets help manage multiple virtual machines as a group, distribute application traffic, and automatically scale compute resources based on workload demand.

🚀 *What You'll Learn in This Lab*

✅ What is Azure Virtual Machine Scale Set (VMSS)?  
✅ VMSS architecture and how it works  
✅ Create a Resource Group, Virtual Network, and Subnet  
✅ Configure VMSS and deploy multiple VM instances  
✅ Understand initial, minimum, and maximum instance counts  
✅ Perform manual scale-out and scale-in  
✅ Configure autoscaling based on CPU utilization  
✅ Create scale-out rules: CPU greater than 70%  
✅ Create scale-in rules: CPU less than 30%  
✅ Configure Azure Load Balancer and backend pools  
✅ Understand health probes and traffic distribution  
✅ Install IIS on VMSS instances and test web traffic  
✅ Generate CPU load and observe autoscaling behavior  
✅ Understand horizontal scaling vs. vertical scaling  
✅ Learn important AZ-104 exam concepts and troubleshooting tips  

💡 *Practical Scaling Example*

Start with 2 VM instances, scale out to 3, 4, and 5 instances as demand increases, then scale back to 2 instances when demand decreases.

You'll see how VMSS, Azure Load Balancer, IIS, and autoscale rules work together in a real-world scenario.

🎯 *Who Should Watch?*
AZ-104 certification candidates
Azure Administrators and Cloud Engineers
IT professionals learning Azure infrastructure
Beginners who want practical Azure hands-on experience

📌 *AZ-104 Exam Preparation Tip*

Don't just memorize VMSS concepts. Practice creating the scale set, configuring autoscale rules, testing load balancing, and troubleshooting deployment issues in the Azure Portal.

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💬 *Comment below:* Have you configured autoscaling in Azure VM Scale Sets? Share your experience or questions!

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