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  • Book Overview & Buying Exam Ref AZ-304 Microsoft Azure Architect Design Certification and Beyond
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Exam Ref AZ-304 Microsoft Azure Architect Design Certification and Beyond

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

By : Brett Hargreaves
4.4 (9)
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Exam Ref AZ-304 Microsoft Azure Architect Design Certification and Beyond

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

4.4 (9)
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)
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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

Understanding virtual machine availability

A common misconception in Azure is that VMs are automatically highly available. Although this may be true to a certain extent as the failure of hardware results in a VM being moved to healthy hardware, this process temporarily interrupts the accessibility of that VM.

Additionally, during maintenance events, the Azure platform may need to forcefully reboot your VM. This is performed gracefully, but again it causes a brief outage for your workload.

Finally, in the unlikely event of an entire region outage, for example, due to networking failure, your VMs will be inaccessible until that outage is rectified.

Another aspect of your VM availability is the type of disks you choose to build it with. Standard magnetic HDDs have the lowest availability, whereas premium SSDs have the greatest due to how they are used and distributed.

These factors can have a significant impact on the Service-Level Agreement (SLA) of your service. For example...

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