Begin with the business constraint
AWS and Azure are platforms; hybrid is an operating arrangement that connects environments. Treating these as three competing products creates a misleading decision. A business can use AWS with its own datacentre, Azure with local infrastructure, or several clouds. Start with the workload, its users, permitted data locations, recovery needs and the team that will support it.
For an illustrative manufacturer, a factory control system may need local operation when external connectivity fails, while its reporting service benefits from elastic capacity. Draw those as separate components. Record which functions must keep running during an outage and how delayed data will reconcile. This makes a placement discussion more useful than counting a provider's service catalogue.
Compare identity and management boundaries
List existing identity sources, administrator privileges, logging destinations and support processes. Microsoft's Azure hybrid architecture guidance provides patterns for managing environments across boundaries, including Azure Arc. A management connection does not automatically move a workload into Azure, remove local maintenance responsibilities or make every service available offline.
Build a small responsibility map for operating systems, applications, keys and incidents. Suppose a local server stops reporting security events: name the person who investigates the agent, the network path and the log destination. If each team assumes another owns the incident, the design has an operational gap regardless of the selected cloud.
Price the complete data journey
Compare a representative month and a failure scenario rather than only a virtual machine rate. Include persistent storage, backups, network transfer, connectivity, monitoring, support, licensing and staff effort. Use each provider's current calculator with documented assumptions. A low compute estimate can hide repeated data transfers between locations or duplicated operating tools.
For a reporting pipeline, estimate how much raw data crosses the boundary daily and which processing can happen near its source. Keep a table of assumptions and test a small transfer with approved sample data. The purpose is an explainable estimate with uncertainty, not a promise that either cloud will always be cheaper.
Prove recovery before expanding the footprint
A second environment can increase complexity without improving recoverability. Define how identities, secrets, application dependencies and data are restored together. Measure a recovery exercise and compare the result with the business tolerance for downtime and data loss. An architecture diagram is only a starting hypothesis.
In the factory example, disconnect the lab network and verify local operation, queue limits and replay behaviour. Then test an invalid message and a duplicate message. Record what operators see and what they must do. These exercises produce evidence that a hybrid design serves a requirement rather than merely adding another hosting location.
Connect the architecture work to AWS Professional preparation
AWS Certified Solutions Architect – Professional targets advanced AWS solution design. As checked for this guide, AWS says SAP-C03 registration opens on 27 October 2026 and the last SAP-C02 testing day is 16 November 2026. Candidates preparing around this transition should verify their appointment and use the matching official guide; an older study plan may describe the outgoing version.
Use the workload decision as a preparation workbook: defend account boundaries, connectivity, security, automation, recovery and cost tradeoffs. Then explain why an attractive alternative fails a stated requirement. Cross-platform familiarity can improve architectural judgment, while an AWS certification assesses the AWS scope published by its issuer. Choose the credential after identifying the decisions your role needs to make.
Official references
Certification requirements and programme terms can change. Use the issuer’s current page and your account to confirm details before applying or paying.