Updates

Author: msmbaldwin

articles/availability-zones/az-overview.md

@@ -14,8 +14,12 @@ ms.custom: references_regions
 
 Azure regions and availability zones are designed to help you achieve resiliency and reliability for your business-critical workloads. Azure maintains multiple geographies. These discrete demarcations define disaster recovery and data residency boundaries across one or multiple Azure regions. Maintaining many regions ensures customers are supported across the world. 
 
+## Regions
+
 Each Azure region features datacenters deployed within a latency-defined perimeter. They're connected through a dedicated regional low-latency network. This design ensures that Azure services within any region offer the best possible performance and security.
 
+## Availability zones
+
 Azure *availability zones* are physically separate locations within each Azure region that are tolerant to local failures. Failures can range from software and hardware failures to events such as earthquakes, floods, and fires. Tolerance to failures is achieved because of redundancy and logical isolation of Azure services. To ensure resiliency, a minimum of three separate availability zones are present in all availability zone-enabled regions. 
 
 Azure availability zones are connected by a high-performance network with a round-trip latency of less than 2 ms. They help your data stay synchronized and accessible when things go wrong. Each zone is composed of one or more datacenters equipped with independent power, cooling, and networking infrastructure. Availability zones are designed so that if one zone is affected, regional services, capacity, and high availability are supported by the remaining two zones.
@@ -30,7 +34,7 @@ You can build high availability into your application architecture by using Azur
 
 Azure *availability zones-enabled services* are designed to provide the right level of resiliency and flexibility. They can be configured in two ways. They can be either *zone redundant*, with automatic replication across zones, or *zonal*, with instances pinned to a specific zone. You can also combine these approaches.
 
-Some organizations require high availability of availability zones and protection from large-scale phenomena and regional disasters. Azure regions are designed to offer protection against localized disasters with availability zones and protection from regional or large geography disasters with disaster recovery, by making use of another region. To learn more about business continuity, disaster recovery, and cross-region replication, see [Cross-region replication in Azure](.../best-practices-availability-paired-regions.md).
+Some organizations require high availability of availability zones and protection from large-scale phenomena and regional disasters. Azure regions are designed to offer protection against localized disasters with availability zones and protection from regional or large geography disasters with disaster recovery, by making use of another region. To learn more about business continuity, disaster recovery, and cross-region replication, see [Cross-region replication in Azure](../best-practices-availability-paired-regions.md).
 
 ![Image showing availability zones that protect against localized disasters and regional or large geography disasters by using another region.](media/availability-zones-region-geography.png)
 

articles/availability-zones/az-region.md

@@ -107,7 +107,7 @@ In the Product Catalog, always-available services are listed as "non-regional" s
 | [Azure App Service environments](../app-service/environment/zone-redundancy.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg) ![An icon that signifies this service is zonal](media/icon-zonal.svg)  |
 | [Azure Active Directory Domain Services](../active-directory-domain-services/overview.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | [Azure API Management](../api-management/zone-redundancy.md)  | ![An icon that signifies this service is zonal](media/icon-zonal.svg)  |
-| [Azure App Configuration](../azure-app-configuration/faq#how-does-app-configuration-ensure-high-data-availability.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
+| [Azure App Configuration](../azure-app-configuration/faq.md#how-does-app-configuration-ensure-high-data-availability)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | [Azure Bastion](../bastion/bastion-overview.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | [Azure Batch](../batch/create-pool-availability-zones.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | [Azure Cache for Redis](../azure-cache-for-redis/cache-high-availability.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg) ![An icon that signifies this service is zonal](media/icon-zonal.svg)  |
@@ -132,7 +132,7 @@ In the Product Catalog, always-available services are listed as "non-regional" s
 | [Azure Web Application Firewall](../firewall/deploy-availability-zone-powershell.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | [Azure Container Registry](../container-registry/zone-redundancy.md)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | [Azure Event Grid](../event-grid/overview.md)  | ![An icon that signifies this service is zone-redundant](media/icon-zone-redundant.svg)  |
-| [Azure HD Insight](../hdinsight-use-availability-zones.md)  | ![An icon that signifies this service is zonal](media/icon-zonal.svg)  |
+| [Azure HD Insight](../hdinsight/hdinsight-use-availability-zones.md)  | ![An icon that signifies this service is zonal](media/icon-zonal.svg)  |
 | [Azure Network Watcher](../network-watcher/frequently-asked-questions.yml)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | Network Watcher: [Traffic Analytics](../network-watcher/frequently-asked-questions.yml)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |
 | [Power BI Embedded](/power-bi/admin/service-admin-failover#what-does-high-availability)  | ![An icon that signifies this service is zone redundant.](media/icon-zone-redundant.svg)  |