Book Image

Implementing Microsoft Azure Architect Technologies: AZ-303 Exam Prep and Beyond - Second Edition

By : Brett Hargreaves, Sjoukje Zaal
Book Image

Implementing Microsoft Azure Architect Technologies: AZ-303 Exam Prep and Beyond - Second Edition

By: Brett Hargreaves, Sjoukje Zaal

Overview of this book

From designing solutions on Azure to configuring and managing virtual networks, the AZ-303 certification validates your knowledge and skills for all this and much more. Whether you want to take the certification exam or gain hands-on experience in administering, developing, and architecting Azure solutions, this study guide will help you get started. Divided into four modules, this book systematically takes you through the wide range of concepts and features covered in the AZ-303 exam. The first module demonstrates how to implement and monitor infrastructure. You'll develop the skills required to deploy and manage core Azure components such as virtual machines, networking, storage, and Active Directory (AD). As you progress, you'll build on that knowledge and learn how to create resilient and secure applications before moving on to working with web apps, functions, and containers. The final module will get you up to speed with data platforms such as SQL and Cosmos DB, including how to configure the different high availability options. Finally, you'll solve mock tests and assess yourself with the answers provided to get ready to take the exam with confidence. By the end of this book, you'll have learned the concepts and techniques you need to know to prepare for the AZ-303 exam and design effective solutions on Microsoft Azure.
Table of Contents (25 chapters)
1
Section 1: Implement and Monitor Azure Infrastructure
10
Section 2: Implement Management and Security Solutions
14
Section 3: Implement Solutions for Apps
18
Section 4: Implement and Manage Data Platforms
21
Chapter 17: Mock Exam Questions
22
Chapter 18: Mock Exam Answers

Understanding VM scale sets

VM scale sets are used for deploying multiple VMs at once without the need for manual actions or using scripts. You can then manage them all at once from a single place. VM scale sets are typically used to build large-scale infrastructures, where keeping all of your VMs in sync is key. The maintenance of VMs, including keeping them in sync, is handled by Azure. VM scale sets use Availability Sets under the hood. VMs inside a scale set are automatically spread over the fault and update domains by the underlying platform. VM scale sets use Azure autoscale by default. You can, however, add or remove instances yourself instead of using autoscale.

You can configure the autoscale settings to scale out (add instances) or in (reduce the number of instances) based on CPU thresholds. For example, you can create a rule to add additional instances if the CPU threshold is over 80% for 5 minutes. You can then have the scale set scaled back if the CPU threshold drops...