Professional Standards & Competencies Flashcards
7 cards from real AZ-301 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Professional Standards & Competencies flashcards as text
A client's architecture review board requires a formal capacity plan before go-live. Which Azure tool provides right-sizing recommendations based on observed usage?
Answer: Azure Advisor performance recommendations
Azure Advisor analyzes telemetry and usage patterns to provide right-sizing recommendations that reduce over-provisioned resources before go-live.
An architect must ensure that a microservices solution can be updated with zero downtime. Which deployment pattern is most appropriate?
Answer: Blue-green deployment with traffic shifting
Blue-green deployment maintains two identical environments and shifts traffic atomically, eliminating downtime and enabling instant rollback.
During a threat model review, an architect identifies that a publicly accessible storage account poses a data exfiltration risk. What is the recommended mitigation?
Answer: Restrict access using private endpoints and disable public access
Private endpoints and disabled public network access eliminate the internet-facing attack surface entirely, which is stronger than IP allowlisting alone.
A new team member asks why the architect chose Azure Service Bus over Azure Event Hubs for an order processing system. This is best explained by which characteristic?
Answer: Service Bus supports message ordering and dead-letter queues for reliable processing
Service Bus provides message sessions, ordering, and dead-letter queues suited for transactional workflows, while Event Hubs is optimized for high-throughput event streaming.
An architect is presenting a design to executives and must explain the trade-off between consistency and availability in a distributed database. Which principle governs this trade-off?
Answer: The CAP theorem
The CAP theorem states that a distributed system can guarantee only two of three properties: Consistency, Availability, and Partition tolerance.
A healthcare client requires that all PHI data remain within a specific Azure region at all times. Which Azure feature enforces this data residency requirement?
Answer: Azure Policy with allowed locations definition
Azure Policy with the 'Allowed locations' built-in definition prevents resources from being created outside specified regions, enforcing data residency.
An architect must recommend how to handle schema changes in a microservices environment without breaking existing consumers. What pattern should be applied?
Answer: Use backward-compatible schema evolution with versioned APIs
Backward-compatible schema evolution with versioned APIs allows existing consumers to continue working while new consumers use updated contracts.