AZ-301 Professional Standards & Competencies 4

Question 1

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?

Accepted Answer

Azure Advisor performance recommendations

Answer

Azure Advisor analyzes telemetry and usage patterns to provide right-sizing recommendations that reduce over-provisioned resources before go-live.

Question 2

An architect must ensure that a microservices solution can be updated with zero downtime. Which deployment pattern is most appropriate?

Accepted Answer

Blue-green deployment with traffic shifting

Answer

Blue-green deployment maintains two identical environments and shifts traffic atomically, eliminating downtime and enabling instant rollback.

Question 3

During a threat model review, an architect identifies that a publicly accessible storage account poses a data exfiltration risk. What is the recommended mitigation?

Accepted Answer

Restrict access using private endpoints and disable public access

Answer

Private endpoints and disabled public network access eliminate the internet-facing attack surface entirely, which is stronger than IP allowlisting alone.

Question 4

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?

Accepted Answer

Service Bus supports message ordering and dead-letter queues for reliable processing

Answer

Service Bus provides message sessions, ordering, and dead-letter queues suited for transactional workflows, while Event Hubs is optimized for high-throughput event streaming.

Question 5

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?

Accepted Answer

The CAP theorem

Answer

The CAP theorem states that a distributed system can guarantee only two of three properties: Consistency, Availability, and Partition tolerance.

AZ-301 - Microsoft Azure Solutions Architect Expert Practice Test

AZ-301 - Microsoft Azure Solutions Architect Expert Practice Test

AZ-301 Professional Standards & Competencies 4