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Microsoft AZ-900 Practice Test 14

Question 130

A ticketing platform wants uptime after a single VM host fails. Which implementation step would best fulfill the stated requirement?

  1. Configure suitable autoscale conditions and a supported baseline capacity.
  2. Define separate load and fault tests in the release acceptance plan.
  3. Deploy eligible instances across supported availability zones and test failover.
  4. Distribute eligible application instances across independent failure boundaries.

Explanation

Correct Answer

D:

Distribute eligible application instances across independent failure boundaries. The implementation operationalizes this design choice: Design redundancy or availability measures rather than simply increasing CPU capacity. Acceptance should demonstrate: A controlled host failure leaves the ticketing service available.

Incorrect Answers

A:

This setup is relevant to another workload: A streaming media team sees performance fall as audience demand grows. The current configuration must instead achieve: A controlled host failure leaves the ticketing service available.

B:

That action implements a different requirement: An app owner assumes reliability and scalability are interchangeable attributes. It does not establish the required result in this case: A controlled host failure leaves the ticketing service available.

C:

This change would be appropriate under a different condition: A manufacturing portal needs to withstand an availability-zone outage. Here it would not validate: A controlled host failure leaves the ticketing service available.

Question 131

A ticketing platform wants uptime after a single VM host fails. Which result would best demonstrate successful implementation?

  1. Observed monthly latency stays within the agreed range under comparable load.
  2. A controlled host failure leaves the ticketing service available.
  3. Disallowed settings are detected or blocked according to policy effects.
  4. Transient faults are handled without endless retries or total service failure.

Explanation

Correct Answer

B:

A controlled host failure leaves the ticketing service available. That directly tests the stated requirement: A ticketing platform wants uptime after a single VM host fails. It contrasts with the observed failure: A larger VM still causes an outage when its only host fails.

Incorrect Answers

A:

This observation is evidence for a separate scenario: A payroll team wants predictable monthly performance rather than only occasional availability. It does not test the necessary outcome here: A controlled host failure leaves the ticketing service available.

C:

The test is relevant when a bank is concerned cloud services can be provisioned outside approved policy. It cannot establish the specified acceptance result: A controlled host failure leaves the ticketing service available.

D:

This observation is evidence for a separate scenario: A delivery company wants resilience when one dependency is down for a short period. It does not test the necessary outcome here: A controlled host failure leaves the ticketing service available.

Question 132

A ticketing platform wants uptime after a single VM host fails. The team observes: A larger VM still causes an outage when its only host fails. What should the team identify as the primary mechanism behind the problem?

  1. Regional placement and routing were chosen without geographic latency evidence.
  2. Backups were never tested for usable recovery.
  3. The architecture increased capacity without adding independent failure protection.
  4. Scaling rules or distribution did not follow workload demand.

Explanation

Correct Answer

C:

The architecture increased capacity without adding independent failure protection. That explains the symptom: A larger VM still causes an outage when its only host fails. The targeted corrective action is: Distribute eligible application instances across independent failure boundaries.

Incorrect Answers

A:

This cause is consistent with a different issue: Remote users have poor response time despite healthy servers. It does not account for the reported symptom here: A larger VM still causes an outage when its only host fails.

B:

The alternate mechanism would more directly produce this other failure: A backup dashboard is green but no test restore succeeds. The current incident instead involves: A larger VM still causes an outage when its only host fails.

D:

This cause is consistent with a different issue: Response time rises despite idle capacity on some instances. It does not account for the reported symptom here: A larger VM still causes an outage when its only host fails.

Question 133

A manufacturing portal needs to withstand an availability-zone outage. Which design choice best fits the stated business constraint?

  1. Recognize self-service provisioning as a cloud manageability benefit.
  2. Use centralized management and monitoring capabilities rather than manual per-VM logins.
  3. Choose zone-redundant deployment where the relevant Azure service and region support it.
  4. Design redundancy or availability measures rather than simply increasing CPU capacity.

Explanation

Correct Answer

C:

Choose zone-redundant deployment where the relevant Azure service and region support it. The governing requirement is: A manufacturing portal needs to withstand an availability-zone outage. This solution specifically supports the outcome that the app continues meeting its availability objective during a zone-loss exercise.

Incorrect Answers

A:

This design is appropriate for a different requirement: A startup wants application capacity changes tracked without lengthy hardware purchasing. Here the decisive outcome must instead be: The app continues meeting its availability objective during a zone-loss exercise.

B:

That concept addresses this separate situation: An IT service provider wants rapid visibility into resource health and resource inventory. It does not by itself establish the result required here: The app continues meeting its availability objective during a zone-loss exercise.

D:

This design is appropriate for a different requirement: A ticketing platform wants uptime after a single VM host fails. Here the decisive outcome must instead be: The app continues meeting its availability objective during a zone-loss exercise.

Question 134

A manufacturing portal needs to withstand an availability-zone outage. Which Azure setup action best follows from this scenario?

  1. Deploy eligible instances across supported availability zones and test failover.
  2. Configure suitable autoscale conditions and a supported baseline capacity.
  3. Configure health checks and bounded retry behavior for appropriate dependencies.
  4. Configure supported backups and periodically restore a representative dataset.

Explanation

Correct Answer

A:

Deploy eligible instances across supported availability zones and test failover. The implementation operationalizes this design choice: Choose zone-redundant deployment where the relevant Azure service and region support it. Acceptance should demonstrate: The app continues meeting its availability objective during a zone-loss exercise.

Incorrect Answers

B:

That action implements a different requirement: A streaming media team sees performance fall as audience demand grows. It does not establish the required result in this case: The app continues meeting its availability objective during a zone-loss exercise.

C:

This change would be appropriate under a different condition: A delivery company wants resilience when one dependency is down for a short period. Here it would not validate: The app continues meeting its availability objective during a zone-loss exercise.

D:

This setup is relevant to another workload: A company wants fast restoration of accidentally deleted cloud data. The current configuration must instead achieve: The app continues meeting its availability objective during a zone-loss exercise.

Question 135

A manufacturing portal needs to withstand an availability-zone outage. Which verification outcome should the team expect from the right design?

  1. The app continues meeting its availability objective during a zone-loss exercise.
  2. The app scales up during peaks and contracts without unbounded resource cost.
  3. Change records show consistent resources and rollback plans.
  4. A controlled host failure leaves the ticketing service available.

Explanation

Correct Answer

A:

The app continues meeting its availability objective during a zone-loss exercise. That directly tests the stated requirement: A manufacturing portal needs to withstand an availability-zone outage. It contrasts with the observed failure: A zonal failure removes every application instance.

Incorrect Answers

B:

That check tests another control: A retail store needs its web service to tolerate unexpected demand while controlling spend. The decisive result for this workload is: The app continues meeting its availability objective during a zone-loss exercise.

C:

The test is relevant when a finance firm wants to reduce operator mistakes during routine updates. It cannot establish the specified acceptance result: The app continues meeting its availability objective during a zone-loss exercise.

D:

This observation is evidence for a separate scenario: A ticketing platform wants uptime after a single VM host fails. It does not test the necessary outcome here: The app continues meeting its availability objective during a zone-loss exercise.

Question 136

A manufacturing portal needs to withstand an availability-zone outage. The team observes: A zonal failure removes every application instance. Which underlying mistake most directly explains the reported symptom?

  1. Availability was measured without performance predictability criteria.
  2. The architecture had recovery copies but no high-availability design.
  3. All replicas were concentrated in the same availability zone.
  4. The data was stored without an appropriate redundancy configuration.

Explanation

Correct Answer

C:

All replicas were concentrated in the same availability zone. That explains the symptom: A zonal failure removes every application instance. The targeted corrective action is: Deploy eligible instances across supported availability zones and test failover.

Incorrect Answers

A:

This cause is consistent with a different issue: The app remains online but transaction times fluctuate wildly. It does not account for the reported symptom here: A zonal failure removes every application instance.

B:

The alternate mechanism would more directly produce this other failure: Every failure requires hours of manual database restoration. The current incident instead involves: A zonal failure removes every application instance.

D:

This cause is consistent with a different issue: A single copy fails when its hardware disappears. It does not account for the reported symptom here: A zonal failure removes every application instance.

Question 137

A streaming media team sees performance fall as audience demand grows. What is the most appropriate cloud concept or service for this need?

  1. Distinguish running-service availability from recovery of historical backup copies.
  2. Balance elasticity policies with cost monitoring instead of permanently overprovisioning.
  3. Plan scalable capacity to handle traffic growth while preserving service targets.
  4. Consider geographic placement and service routing for performance predictability.

Explanation

Correct Answer

C:

Plan scalable capacity to handle traffic growth while preserving service targets. The governing requirement is: A streaming media team sees performance fall as audience demand grows. This solution specifically supports the outcome that latency remains within target during a controlled traffic ramp.

Incorrect Answers

A:

This design is appropriate for a different requirement: A school plans a cloud database and assumes backup copies alone deliver high availability. Here the decisive outcome must instead be: Latency remains within target during a controlled traffic ramp.

B:

That concept addresses this separate situation: A retail store needs its web service to tolerate unexpected demand while controlling spend. It does not by itself establish the result required here: Latency remains within target during a controlled traffic ramp.

D:

This design is appropriate for a different requirement: A product team needs lower latency for customers spread across distant regions. Here the decisive outcome must instead be: Latency remains within target during a controlled traffic ramp.

Question 138

A streaming media team sees performance fall as audience demand grows. What should the team configure or perform to implement the correct approach?

  1. Monitor representative workloads under repeatable demand levels.
  2. Apply appropriate Azure Policy assignments at the required scope.
  3. Configure supported geo-replication and restore/runbook procedures as appropriate.
  4. Configure suitable autoscale conditions and a supported baseline capacity.

Explanation

Correct Answer

D:

Configure suitable autoscale conditions and a supported baseline capacity. The implementation operationalizes this design choice: Plan scalable capacity to handle traffic growth while preserving service targets. Acceptance should demonstrate: Latency remains within target during a controlled traffic ramp.

Incorrect Answers

A:

This setup is relevant to another workload: A payroll team wants predictable monthly performance rather than only occasional availability. The current configuration must instead achieve: Latency remains within target during a controlled traffic ramp.

B:

That action implements a different requirement: A bank is concerned cloud services can be provisioned outside approved policy. It does not establish the required result in this case: Latency remains within target during a controlled traffic ramp.

C:

This change would be appropriate under a different condition: A municipal app must recover quickly after a regional disruption. Here it would not validate: Latency remains within target during a controlled traffic ramp.

Question 139

A streaming media team sees performance fall as audience demand grows. Which evidence best confirms the requirement is being met?

  1. Latency remains within target during a controlled traffic ramp.
  2. Disallowed settings are detected or blocked according to policy effects.
  3. Observed monthly latency stays within the agreed range under comparable load.
  4. Change records show consistent resources and rollback plans.

Explanation

Correct Answer

A:

Latency remains within target during a controlled traffic ramp. That directly tests the stated requirement: A streaming media team sees performance fall as audience demand grows. It contrasts with the observed failure: Response time rises despite idle capacity on some instances.

Incorrect Answers

B:

That check tests another control: A bank is concerned cloud services can be provisioned outside approved policy. The decisive result for this workload is: Latency remains within target during a controlled traffic ramp.

C:

The test is relevant when a payroll team wants predictable monthly performance rather than only occasional availability. It cannot establish the specified acceptance result: Latency remains within target during a controlled traffic ramp.

D:

This observation is evidence for a separate scenario: A finance firm wants to reduce operator mistakes during routine updates. It does not test the necessary outcome here: Latency remains within target during a controlled traffic ramp.

Question 140

A streaming media team sees performance fall as audience demand grows. The team observes: Response time rises despite idle capacity on some instances. What is the most likely cause of the observed failure?

  1. All replicas were concentrated in the same availability zone.
  2. Regional placement and routing were chosen without geographic latency evidence.
  3. Scaling rules or distribution did not follow workload demand.
  4. The architecture increased capacity without adding independent failure protection.

Explanation

Correct Answer

C:

Scaling rules or distribution did not follow workload demand. That explains the symptom: Response time rises despite idle capacity on some instances. The targeted corrective action is: Configure suitable autoscale conditions and a supported baseline capacity.

Incorrect Answers

A:

This cause is consistent with a different issue: A zonal failure removes every application instance. It does not account for the reported symptom here: Response time rises despite idle capacity on some instances.

B:

The alternate mechanism would more directly produce this other failure: Remote users have poor response time despite healthy servers. The current incident instead involves: Response time rises despite idle capacity on some instances.

D:

This cause is consistent with a different issue: A larger VM still causes an outage when its only host fails. It does not account for the reported symptom here: Response time rises despite idle capacity on some instances.

Microsoft Azure Fundamentals (AZ-900) Practice Tests

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