Section: Describe Core Azure Services
Explanation:
Box 1: No
Not all Azure regions support availability zones.
Box 2: No
Availability zones can be used with many Azure services, not just VMs.
Box 3: No
Availability Zones are unique physical locations within a single Azure region.
Reference:
https://docs.microsoft.com/en-us/azure/availability-zones/az-region#azure-regions-with-availability-zones

Section: Understand Core Azure Services

Section: Describe core solutions and management tools on Azure
Explanation:
Box 1:
Azure Monitor is used to monitor the health of Azure services.
Azure Monitor maximizes the availability and performance of your applications and services by delivering a comprehensive solution for collecting, analyzing, and acting on telemetry from your cloud and on-premises environments. It helps you understand how your applications are performing and proactively identifies issues affecting them and the resources they depend on.
Box 2:
You can browse available virtual machine images in the Azure Marketplace.
Azure Marketplace provides access and information on solutions and services available from Microsoft and their partners. Customers can discover, try, or buy cloud software solutions built on or for Azure. The catalog of
8,000+ listings provides Azure building blocks, such as Virtual Machines (VMs), APIs, Azure apps, Solution Templates and managed applications, SaaS apps, containers, and consulting services.
Box 3.
Azure Advisor displays security recommendations.
Azure Advisor provides you with a consistent, consolidated view of recommendations for all your Azure resources. It integrates with Azure Security Center to bring you security recommendations. You can get security recommendations from the Security tab on the Advisor dashboard.
Security Center helps you prevent, detect, and respond to threats with increased visibility into and control over the security of your Azure resources. It periodically analyzes the security state of your Azure resources. When Security Center identifies potential security vulnerabilities, it creates recommendations. The recommendations guide you through the process of configuring the controls you need.
References:
https://docs.microsoft.com/en-us/azure/azure-monitor/overview
https://docs.microsoft.com/en-us/azure/marketplace/marketplace-faq-publisher-guide
https://docs.microsoft.com/en-us/azure/advisor/advisor-security-recommendations