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Microsoft AZ-305 Practice Test 56

Question 550

A regional stateless web fleet must replace failed instances and scale on aggregate CPU. Which Azure architecture choice best meets this requirement?

  1. Reboot all production instances at exactly the same instant.
  2. Manually provision each VM and detect failure only through user complaints.
  3. Store the only copy of user sessions on each scale-in eligible VM.
  4. Use Virtual Machine Scale Sets with suitable health and autoscale policies.

Explanation

Correct Answer

D:

VMSS coordinates homogeneous instances and automated scale actions.

Incorrect Answers

A:

Simultaneous restarts cause avoidable full-service downtime. In the present requirement, a regional stateless web fleet must replace failed instances and scale on aggregate CPU. The needed design instead works because vMSS coordinates homogeneous instances and automated scale actions.

B:

Manual remediation delays recovery under load. This proposal contradicts the stated architecture constraint.

C:

Autoscale can delete the only record of the session. In the present requirement, a regional stateless web fleet must replace failed instances and scale on aggregate CPU. The needed design instead works because vMSS coordinates homogeneous instances and automated scale actions.

Question 551

An architecture proposal for vm scale set resilient service relies on the following approach: Manually provision each VM and detect failure only through user complaints. Which specific failure or mismatch should the design reviewer identify?

  1. An open socket can coexist with a failed application dependency.
  2. Autoscale can delete the only record of the session.
  3. Manual remediation delays recovery under load.
  4. Simultaneous restarts cause avoidable full-service downtime.

Explanation

Correct Answer

C:

Manually provision each VM and detect failure only through user complaints. Manual remediation delays recovery under load.

Incorrect Answers

A:

This concern applies to Check only TCP socket acceptance and declare user transactions healthy. in another design for high availability design. The current proposal specifically fails because manual remediation delays recovery under load.

B:

That assessment refers to the separate proposal 'Store the only copy of user sessions on each scale-in eligible VM.' not to the recommendation under review. Here, Manual remediation delays recovery under load.

D:

That assessment refers to the separate proposal 'Reboot all production instances at exactly the same instant.' not to the recommendation under review. Here, Manual remediation delays recovery under load.

Question 552

Acceptance testing must establish the following operational result: Scaling and repair behavior validates the automated fleet. Which verification action most directly establishes that outcome?

  1. Perform a staged update and monitor healthy capacity throughout.
  2. Delete a worker during an active session and check continuity.
  3. Break a test login dependency and observe health-probe removal.
  4. Generate load and terminate a test instance while observing replacement.

Explanation

Correct Answer

D:

Scaling and repair behavior validates the automated fleet.

Incorrect Answers

A:

That verification addresses the different requirement: A company wants uniform VM OS updates across a large instance fleet without taking the whole site down. It does not directly establish scaling and repair behavior validates the automated fleet.

B:

That verification addresses the different requirement: A VMSS contains stateful sessions tied to local instance disks that cannot survive replacement. It does not directly establish scaling and repair behavior validates the automated fleet.

C:

This is a test for An HTTP gateway sees a healthy VM heartbeat while the app's login endpoint is broken. The requirement here is instead demonstrated by generate load and terminate a test instance while observing replacement.

Question 553

A company wants uniform VM OS updates across a large instance fleet without taking the whole site down. Which Azure architecture choice best meets this requirement?

  1. Configure appropriate rolling update and health policy for the scale set.
  2. Reboot all production instances at exactly the same instant.
  3. Store the only copy of user sessions on each scale-in eligible VM.
  4. Manually provision each VM and detect failure only through user complaints.

Explanation

Correct Answer

A:

Rolling upgrades reduce simultaneous instance disruption.

Incorrect Answers

B:

Simultaneous restarts cause avoidable full-service downtime. This proposal contradicts the stated architecture constraint.

C:

Autoscale can delete the only record of the session. In the present requirement, a company wants uniform VM OS updates across a large instance fleet without taking the whole site down. The needed design instead works because rolling upgrades reduce simultaneous instance disruption.

D:

Manual remediation delays recovery under load. In the present requirement, a company wants uniform VM OS updates across a large instance fleet without taking the whole site down. The needed design instead works because rolling upgrades reduce simultaneous instance disruption.

Question 554

An architecture proposal for vm scale set resilient service relies on the following approach: Reboot all production instances at exactly the same instant. Which specific failure or mismatch should the design reviewer identify?

  1. Transport-layer routing does not provide HTTP path inspection or WAF.
  2. Manual remediation delays recovery under load.
  3. Simultaneous restarts cause avoidable full-service downtime.
  4. Autoscale can delete the only record of the session.

Explanation

Correct Answer

C:

Reboot all production instances at exactly the same instant. Simultaneous restarts cause avoidable full-service downtime.

Incorrect Answers

A:

This concern applies to Choose a basic Layer 4 load balancer for URL path rewrite and WAF. in another design for high availability design. The current proposal specifically fails because simultaneous restarts cause avoidable full-service downtime.

B:

That assessment refers to the separate proposal 'Manually provision each VM and detect failure only through user complaints.' not to the recommendation under review. Here, Simultaneous restarts cause avoidable full-service downtime.

D:

That assessment refers to the separate proposal 'Store the only copy of user sessions on each scale-in eligible VM.' not to the recommendation under review. Here, Simultaneous restarts cause avoidable full-service downtime.

Question 555

Acceptance testing must establish the following operational result: Capacity observations show the rollout retained availability. Which verification action most directly establishes that outcome?

  1. Delete a worker during an active session and check continuity.
  2. Perform a staged update and monitor healthy capacity throughout.
  3. Generate load and terminate a test instance while observing replacement.
  4. Exercise path routing, certificate and WAF test rules.

Explanation

Correct Answer

B:

Capacity observations show the rollout retained availability.

Incorrect Answers

A:

That verification addresses the different requirement: A VMSS contains stateful sessions tied to local instance disks that cannot survive replacement. It does not directly establish capacity observations show the rollout retained availability.

C:

That verification addresses the different requirement: A regional stateless web fleet must replace failed instances and scale on aggregate CPU. It does not directly establish capacity observations show the rollout retained availability.

D:

This is a test for A service requires TLS termination, path-based routing and web application security. The requirement here is instead demonstrated by perform a staged update and monitor healthy capacity throughout.

Question 556

A VMSS contains stateful sessions tied to local instance disks that cannot survive replacement. Which Azure architecture choice best meets this requirement?

  1. Store the only copy of user sessions on each scale-in eligible VM.
  2. Manually provision each VM and detect failure only through user complaints.
  3. Externalize session and persistent data before treating the fleet as disposable.
  4. Reboot all production instances at exactly the same instant.

Explanation

Correct Answer

C:

Stateless scale-out depends on session and durable state surviving instance churn.

Incorrect Answers

A:

Autoscale can delete the only record of the session. This proposal contradicts the stated architecture constraint.

B:

Manual remediation delays recovery under load. In the present requirement, a VMSS contains stateful sessions tied to local instance disks that cannot survive replacement. The needed design instead works because stateless scale-out depends on session and durable state surviving instance churn.

D:

Simultaneous restarts cause avoidable full-service downtime. In the present requirement, a VMSS contains stateful sessions tied to local instance disks that cannot survive replacement. The needed design instead works because stateless scale-out depends on session and durable state surviving instance churn.

Question 557

An architecture proposal for vm scale set resilient service relies on the following approach: Store the only copy of user sessions on each scale-in eligible VM. Which specific failure or mismatch should the design reviewer identify?

  1. Simultaneous restarts cause avoidable full-service downtime.
  2. Autoscale can delete the only record of the session.
  3. Static records cannot react immediately to application failure.
  4. Manual remediation delays recovery under load.

Explanation

Correct Answer

B:

Store the only copy of user sessions on each scale-in eligible VM. Autoscale can delete the only record of the session.

Incorrect Answers

A:

That assessment refers to the separate proposal 'Reboot all production instances at exactly the same instant.' not to the recommendation under review. Here, Autoscale can delete the only record of the session.

C:

This concern applies to Use static DNS records with no endpoint health evaluation as the only failover. in another design for high availability design. The current proposal specifically fails because autoscale can delete the only record of the session.

D:

That assessment refers to the separate proposal 'Manually provision each VM and detect failure only through user complaints.' not to the recommendation under review. Here, Autoscale can delete the only record of the session.

Question 558

Acceptance testing must establish the following operational result: Session survival proves correct state externalization. Which verification action most directly establishes that outcome?

  1. Delete a worker during an active session and check continuity.
  2. Perform a staged update and monitor healthy capacity throughout.
  3. Generate load and terminate a test instance while observing replacement.
  4. Return HTTP 500 from one test backend and inspect traffic routing.

Explanation

Correct Answer

A:

Session survival proves correct state externalization.

Incorrect Answers

B:

That verification addresses the different requirement: A company wants uniform VM OS updates across a large instance fleet without taking the whole site down. It does not directly establish session survival proves correct state externalization.

C:

That verification addresses the different requirement: A regional stateless web fleet must replace failed instances and scale on aggregate CPU. It does not directly establish session survival proves correct state externalization.

D:

This is a test for Two zonal web instances should receive traffic only while their HTTP health checks succeed. The requirement here is instead demonstrated by delete a worker during an active session and check continuity.

Question 559

A mission-critical SQL Database needs protection from a primary zone failure in a supported region. Which Azure architecture choice best meets this requirement?

  1. Deploy a non-zonal database and assume application retries create zone replicas.
  2. Assume active SQL connections never need retry logic after a failover.
  3. Select an eligible zone-redundant Azure SQL configuration.
  4. Treat asynchronous reporting replicas as a zero-loss synchronous write quorum.

Explanation

Correct Answer

C:

Zone redundancy distributes supported SQL high-availability replicas across zones.

Incorrect Answers

A:

Client retries do not introduce database zone redundancy. This proposal contradicts the stated architecture constraint.

B:

Transport sessions may break while a new replica becomes primary. In the present requirement, a mission-critical SQL Database needs protection from a primary zone failure in a supported region. The needed design instead works because zone redundancy distributes supported SQL high-availability replicas across zones.

D:

Read replicas cannot automatically meet synchronous failover requirements. In the present requirement, a mission-critical SQL Database needs protection from a primary zone failure in a supported region. The needed design instead works because zone redundancy distributes supported SQL high-availability replicas across zones.

Question 560

An architecture proposal for sql zone-redundant ha relies on the following approach: Deploy a non-zonal database and assume application retries create zone replicas. Which specific failure or mismatch should the design reviewer identify?

  1. Autoscale can delete the only record of the session.
  2. Client retries do not introduce database zone redundancy.
  3. Read replicas cannot automatically meet synchronous failover requirements.
  4. Transport sessions may break while a new replica becomes primary.

Explanation

Correct Answer

B:

Deploy a non-zonal database and assume application retries create zone replicas. Client retries do not introduce database zone redundancy.

Incorrect Answers

A:

This concern applies to Store the only copy of user sessions on each scale-in eligible VM. in another design for high availability design. The current proposal specifically fails because client retries do not introduce database zone redundancy.

C:

That assessment refers to the separate proposal 'Treat asynchronous reporting replicas as a zero-loss synchronous write quorum.' not to the recommendation under review. Here, Client retries do not introduce database zone redundancy.

D:

That assessment refers to the separate proposal 'Assume active SQL connections never need retry logic after a failover.' not to the recommendation under review. Here, Client retries do not introduce database zone redundancy.

Designing Microsoft Azure Infrastructure Solutions (AZ-305) Practice Tests