Availability sets, availability zones, and Virtual Machine Scale Sets solve related but different Azure compute problems. An availability set spreads a small group of VMs […]
Microsoft Certifications
Microsoft AZ-104: Troubleshooting Azure Networks with Network Watcher
Azure networking problems are easier to diagnose when monitoring and troubleshooting tools are used for the jobs they were designed to perform. Azure Monitor collects […]
Microsoft AZ-305: Azure Logging Architecture
Azure logging architecture is not a matter of enabling every available diagnostic category. The design problem is deciding which signals matter, where they should be […]
Microsoft AZ-305: Azure Key Vault Architecture
Azure Key Vault removes sensitive cryptographic material from application code, configuration files, and deployment scripts, but a secure design requires more than creating a vault […]
Microsoft AZ-305: Azure High Availability vs Disaster Recovery
High availability and disaster recovery are related reliability disciplines, but they answer different failure questions. High availability (HA) is primarily about keeping a workload running […]
Microsoft AZ-305: Choosing Azure Service Bus, Event Grid, or Event Hubs
Azure Service Bus, Event Grid, and Event Hubs all move information between components, but they are designed for different communication problems. The easiest way to […]
Microsoft AZ-305: Azure Migration Paths: Rehost, Refactor, or Replace
Azure migration decisions are not simply choices between “move the server” and “rewrite the application.” A workload can be rehosted, replatformed, refactored, rearchitected, or replaced, […]
Microsoft AZ-700: ExpressRoute vs VPN Gateway
Azure ExpressRoute and VPN Gateway both connect on-premises networks to Azure, but they solve different hybrid-connectivity requirements. VPN Gateway establishes encrypted IPsec/IKE tunnels across the […]
Microsoft AZ-700: Azure Private Link vs Service Endpoints
Azure Private Link and virtual network service endpoints can both restrict access to Azure platform services from a virtual network, but they do so in […]
Microsoft AZ-700: Azure Virtual WAN, VNet Peering, and Route Server
Azure Virtual WAN, VNet peering, and Azure Route Server all influence connectivity between networks, but they operate at different architectural layers. VNet peering directly connects […]
Microsoft AZ-700: Azure Firewall, NSGs, or WAF?
Azure Firewall, network security groups (NSGs), and Web Application Firewall (WAF) all enforce security policy, but they protect different layers and scopes. NSGs provide distributed […]
Microsoft AZ-700: Which Azure Load Balancer Should You Use?
Azure offers several traffic-distribution services, and the term “load balancer” can hide important differences. Azure Load Balancer, Application Gateway, Azure Front Door, and Traffic Manager […]
Microsoft SC-300: Conditional Access Troubleshooting
Conditional Access troubleshooting becomes much more reliable when the investigation starts with the sign-in event rather than the policy editor. A user can be blocked […]
Microsoft SC-300: Entra PIM, Access Reviews, or Entitlement Management?
Microsoft Entra ID Governance includes several controls that all answer versions of “who should have access,” but they operate at different points in the access […]
Microsoft SC-300: Managed Identities vs Service Principals
Azure workloads often need to call another service without a human signing in. Microsoft Entra provides several workload-identity patterns for that problem, and the terminology […]