Book Image

Exam Ref AZ-304 Microsoft Azure Architect Design Certification and Beyond

By : Brett Hargreaves
Book Image

Exam Ref AZ-304 Microsoft Azure Architect Design Certification and Beyond

By: Brett Hargreaves

Overview of this book

The AZ-304 exam tests an architect's ability to design scalable, reliable, and secure solutions in Azure based on customer requirements. Exam Ref AZ-304 Microsoft Azure Architect Design Certification and Beyond offers complete, up-to-date coverage of the AZ-304 exam content to help you prepare for it confidently, pass the exam first time, and get ready for real-world challenges. This book will help you to investigate the need for good architectural practices and discover how they address common concerns for cloud-based solutions. You will work through the CloudStack, from identity and access through to infrastructure (IaaS), data, applications, and serverless (PaaS). As you make progress, you will delve into operations including monitoring, resilience, scalability, and disaster recovery. Finally, you'll gain a clear understanding of how these operations fit into the real world with the help of full scenario-based examples throughout the book. By the end of this Azure book, you'll have covered everything you need to pass the AZ-304 certification exam and have a handy desktop reference guide.
Table of Contents (30 chapters)
1
Section 1: Exploring Modern Architecture
4
Section 2: Identity and Security
9
Section 3: Infrastructure and Storage Components
14
Section 4: Applications and Databases
19
Section 5: Operations and Monitoring
23
Section 6: Beyond the Exam
26
Mock Exam
27
Mock Answers

Chapter 14: High Availability and Redundancy Concepts

In the previous two chapters, we examined how to create scalable databases and the different options for integrating them using data flows.

This chapter looks at how we can ensure our solutions are highly available and automatically respond to failures.

Many Azure components, especially Platform as a Service (PaaS) and serverless options such as Azure Functions, automatically implement high availability. We examined how to best leverage and architect applications to take advantage of those features in Chapter 11, Comparing Application Components.

However, Infrastructure as a Service (IaaS) components such as virtual machines need more thought to respond to outages. Azure storage and Azure databases offer more options on top of the default configuration to expand the concept of high availability across regions. Again, we touched on this in Chapter 12, Creating Scalable and Secure Databases, when investigating the use of...