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

Setting up automatic scaling

The ability to scale applications is an important capability when you're fully leveraging the power of cloud technologies.

As a fully managed service, Web Apps are easy to scale – either manually or automatically. Auto-scaling is only available on S1 price tiers and above, so we will keep the Web App we published in the previous section at the S1 tier.

When we changed the pricing tier from free to S1, we performed a scale-up process. Auto-scaling uses scaling out. Scaling up involves adding more RAM and CPU to the individual instance of our Web App. Scaling out creates more instances of our Web Apps, and in front of them, Azure uses a load balancer to split traffic between those instances.

We can scale our apps based on different rules. We can scale based on a metric, such as CPU or RAM usage, or we can scale on a schedule – for example, scale up during core hours and scale back when we know the app won't be used as much...