AWS offers several managed ways to transform data, but AWS Glue, Amazon EMR, and AWS Lambda are not interchangeable ETL engines. Each one assumes a […]
Cloud Computing
AWS DEA-C01: Kinesis Data Streams, Data Firehose, and MSK
Streaming architectures on AWS often mention Amazon Kinesis Data Streams, Amazon Data Firehose, and Amazon Managed Streaming for Apache Kafka (Amazon MSK) in the same […]
AWS DEA-C01: Building an S3 Data Lake
Amazon S3 is a natural foundation for an AWS data lake because object storage separates durable storage from the compute engines that analyze it. But […]
AWS DEA-C01: Glue Data Catalog and Lake Formation
AWS Glue Data Catalog and AWS Lake Formation are closely related, which is why they are easy to blur together. The Data Catalog is fundamentally […]
AWS DEA-C01: Redshift Performance and Data Design
Amazon Redshift performance is shaped by how data is stored, distributed, filtered, joined, and scheduled across a massively parallel processing system. Modern Redshift automates more […]
Microsoft AZ-104: Azure Policy vs RBAC vs Resource Locks
Azure Policy, Azure role-based access control, and resource locks are all governance controls, but they answer different questions. Azure RBAC decides who can perform an […]
Microsoft AZ-104: Azure Storage Authentication Methods
Azure Storage supports several authorization methods, and choosing the wrong one can create unnecessary risk. Microsoft currently recommends Microsoft Entra ID for many Azure Storage […]
Microsoft AZ-104: Azure VM Availability Sets, Zones, and Scale Sets
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 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: 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 […]
Public, Private, Hybrid & Community Cloud Deployment Models Explained
Modern digital systems rely heavily on cloud computing, but the way cloud resources are organized and delivered can vary significantly depending on business goals, technical […]