AZ-204 Quality Control & Assurance 3

Question 1

Which Azure service provides a fully managed environment to run Selenium-based UI tests at scale across multiple browsers?

Accepted Answer

Azure Test Plans

Answer

Azure Test Plans includes exploratory and manual testing tools and integrates with automated test runners including Selenium for browser-based tests.

Question 2

A team uses feature flags in Azure App Configuration to gradually roll out a new feature. Which pattern does this implement?

Accepted Answer

Canary release

Answer

Canary release exposes a new feature to a small subset of users first, using feature flags to control the rollout percentage progressively.

Question 3

When should you use Azure Application Insights 'Smart Detection' compared to classic metric alerts?

Accepted Answer

Smart Detection automatically identifies anomalies without preset thresholds; classic alerts trigger on fixed conditions

Answer

Smart Detection uses machine learning to detect unusual patterns in failure rates, response times, and memory use without requiring you to define explicit thresholds.

Question 4

In a YAML-based Azure Pipeline, which keyword do you use to run a step only when a previous step fails?

Accepted Answer

condition: failed()

Answer

Setting 'condition: failed()' on a step causes it to execute only when the preceding step did not succeed, useful for cleanup or notification tasks.

Question 5

You want to ensure your Azure Function does not regress on cold-start latency after each deployment. Which approach best automates this quality check?

Accepted Answer

Add a performance test stage to the CI/CD pipeline that measures p95 response time after deployment

Answer

Running a post-deployment performance test in the pipeline captures latency metrics automatically and can fail the pipeline if thresholds are exceeded.

AZ-204 - Microsoft Azure Developer Associate Practice Test

AZ-204 - Microsoft Azure Developer Associate Practice Test

AZ-204 Quality Control & Assurance 3