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Distributing Network Traffic in Azure


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Exam Prep 70-533: Implementing Microsoft Azure Infrastructure Solutions

The purpose of this course is to help prepare you for the Microsoft Azure 70-533 Exam. This course focuses on key points that are meant to fill in the learning gaps for those who already have a base foundational knowledge of Microsoft Azure.

What You'll Learn in this Exam Prep 70-533

Lesson What you'll learn
Overview of the Course Overview of the course and the Learning Objectives
About the 70-533 Exam Learn about the exam, its objectives, and certification paths
Design and Implement Azure App Service Apps Discuss App Service Plans and Web Apps
Create and Manage ARM Virtual Machines Understand ARM VMs, pricing, resiliency and configuration limits
Design and Implement a Storage Strategy Learn to Implement Azure Storage, SQL Databases, and Recovery Services
Implement an Azure Active Directory Discuss Azure AD, tools, App integration, and monitoring
Implement Virtual Networks Learn about Azure networking and cross-site connectivity
Design and Deploy ARM Templates Learn about ARM Templates and Deployment options
Summary Course summary including Exam Tips and Tricks



In general there are several different ways to distribute network traffic in Azure. Each method can be used in isolation or combined based on your particular scenario. For exam purposes focus on the goal of each particular method to help answer “best method with least amount of work scenario” type questions.

As we’ve just discussed Azure Load Balancer works on the transport layer, TCP/UDP, and provides network-level distribution of traffic across instances of an application running in the same Azure datacenter. Application Gateway works at the application level and acts as a sort of reverse-proxy service terminating the client connection and forwarding requests to backend endpoints. Finally Traffic Manager is a DNS level service which uses DNS responses to direct end-user traffic to globally distributed endpoints where clients connect to directly.

Perhaps it’s best to imagine using all three methods in combination as a web app design goal to understand how each method is used. So let’s say you have a Web App and one region goes down. Traffic Manager routes traffic to the closest region without any intervention from the application owner. Because Traffic Manager automatically directs the customer to the closest region, the customer experiences lower latency when accessing the web application. And because the web app workload is separated by type of content, you can scale the request workloads independent of each other and the Application Gateway ensures that the traffic is routed to the right pools based on the specified rules and health of the application. Finally, assuming the load balancer is in front of a high-availability cluster, only the active and healthy endpoint for a database is exposed to the application.

Remember these points and you’ll be in great shape for the exam.

About the Author

Learning paths2

Chris has over 15 years of experience working with top IT Enterprise businesses.  Having worked at Google helping to launch Gmail, YouTube, Maps and more and most recently at Microsoft working directly with Microsoft Azure for both Commercial and Public Sectors, Chris brings a wealth of knowledge and experience to the team in architecting complex solutions and advanced troubleshooting techniques.  He holds several Microsoft Certifications including Azure Certifications.

In his spare time, Chris enjoys movies, gaming, outdoor activities, and Brazilian Jiu-Jitsu.