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Microsoft AZ-900 Practice Test 21

Question 200

A product team needs lower latency for customers spread across distant regions. The team observes: Remote users have poor response time despite healthy servers. Which underlying mistake most directly explains the reported symptom?

  1. Regional placement and routing were chosen without geographic latency evidence.
  2. The data was stored without an appropriate redundancy configuration.
  3. All replicas were concentrated in the same availability zone.
  4. All traffic depended on an unreplicated application node.

Explanation

Correct Answer

A:

Regional placement and routing were chosen without geographic latency evidence. That explains the symptom: Remote users have poor response time despite healthy servers. The targeted corrective action is: Measure latency by user geography before selecting supported deployment regions.

Incorrect Answers

B:

The alternate mechanism would more directly produce this other failure: A single copy fails when its hardware disappears. The current incident instead involves: Remote users have poor response time despite healthy servers.

C:

That explanation belongs to a different fault pattern: A zonal failure removes every application instance. It does not explain why remote users have poor response time despite healthy servers.

D:

This cause is consistent with a different issue: Taking one instance offline halts the whole customer service. It does not account for the reported symptom here: Remote users have poor response time despite healthy servers.

Question 201

A regulated service needs auditable access across operations teams. What is the most appropriate cloud concept or service for this need?

  1. Use cloud governance and security features to establish accountable permissions.
  2. Choose zone-redundant deployment where the relevant Azure service and region support it.
  3. Consider geographic placement and service routing for performance predictability.
  4. Distinguish running-service availability from recovery of historical backup copies.

Explanation

Correct Answer

A:

Use cloud governance and security features to establish accountable permissions. The governing requirement is: A regulated service needs auditable access across operations teams. This solution specifically supports the outcome that the audit can identify who changed access and when.

Incorrect Answers

B:

That concept addresses this separate situation: A manufacturing portal needs to withstand an availability-zone outage. It does not by itself establish the result required here: The audit can identify who changed access and when.

C:

This option solves a different planning problem: A product team needs lower latency for customers spread across distant regions. The current acceptance criterion is specific: The audit can identify who changed access and when.

D:

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: The audit can identify who changed access and when.

Question 202

A regulated service needs auditable access across operations teams. What should the team configure or perform to implement the correct approach?

  1. Assign scoped roles and retain audit activity records for privileged operations.
  2. Monitor representative workloads under repeatable demand levels.
  3. Apply reviewed template-driven changes instead of unrelated portal edits.
  4. Organize resources for portal and monitoring views with appropriate access.

Explanation

Correct Answer

A:

Assign scoped roles and retain audit activity records for privileged operations. The implementation operationalizes this design choice: Use cloud governance and security features to establish accountable permissions. Acceptance should demonstrate: The audit can identify who changed access and when.

Incorrect Answers

B:

That action implements a different requirement: A payroll team wants predictable monthly performance rather than only occasional availability. It does not establish the required result in this case: The audit can identify who changed access and when.

C:

This change would be appropriate under a different condition: A finance firm wants to reduce operator mistakes during routine updates. Here it would not validate: The audit can identify who changed access and when.

D:

This setup is relevant to another workload: An IT service provider wants rapid visibility into resource health and resource inventory. The current configuration must instead achieve: The audit can identify who changed access and when.

Question 203

A regulated service needs auditable access across operations teams. Which evidence best confirms the requirement is being met?

  1. An instance fault triggers availability behavior without waiting for a backup restore.
  2. User sessions stay within SLO while a subset of instances upgrades.
  3. The audit can identify who changed access and when.
  4. The service has independent evidence for load scaling and outage recovery.

Explanation

Correct Answer

C:

The audit can identify who changed access and when. That directly tests the stated requirement: A regulated service needs auditable access across operations teams. It contrasts with the observed failure: Unknown users can modify production resources without a trace.

Incorrect Answers

A:

This observation is evidence for a separate scenario: A school plans a cloud database and assumes backup copies alone deliver high availability. It does not test the necessary outcome here: The audit can identify who changed access and when.

B:

That check tests another control: A tourism service wants software patches installed without unscheduled customer outages. The decisive result for this workload is: The audit can identify who changed access and when.

D:

This observation is evidence for a separate scenario: An app owner assumes reliability and scalability are interchangeable attributes. It does not test the necessary outcome here: The audit can identify who changed access and when.

Question 204

A regulated service needs auditable access across operations teams. The team observes: Unknown users can modify production resources without a trace. What is the most likely cause of the observed failure?

  1. Backups were never tested for usable recovery.
  2. Permissions were overbroad and audit visibility was not configured.
  3. The application lacks failure-handling behavior even though hosted in the cloud.
  4. All replicas were concentrated in the same availability zone.

Explanation

Correct Answer

B:

Permissions were overbroad and audit visibility was not configured. That explains the symptom: Unknown users can modify production resources without a trace. The targeted corrective action is: Assign scoped roles and retain audit activity records for privileged operations.

Incorrect Answers

A:

This cause is consistent with a different issue: A backup dashboard is green but no test restore succeeds. It does not account for the reported symptom here: Unknown users can modify production resources without a trace.

C:

That explanation belongs to a different fault pattern: Requests fail permanently on the first brief network interruption. It does not explain why unknown users can modify production resources without a trace.

D:

This cause is consistent with a different issue: A zonal failure removes every application instance. It does not account for the reported symptom here: Unknown users can modify production resources without a trace.

Question 205

A retail store needs its web service to tolerate unexpected demand while controlling spend. Which architectural decision meets the described priority?

  1. Use automated infrastructure definitions to improve manageability.
  2. Include tested backup and recovery in the reliability strategy.
  3. Balance elasticity policies with cost monitoring instead of permanently overprovisioning.
  4. Consider geographic placement and service routing for performance predictability.

Explanation

Correct Answer

C:

Balance elasticity policies with cost monitoring instead of permanently overprovisioning. The governing requirement is: A retail store needs its web service to tolerate unexpected demand while controlling spend. This solution specifically supports the outcome that the app scales up during peaks and contracts without unbounded resource cost.

Incorrect Answers

A:

This design is appropriate for a different requirement: A nonprofit wants a repeatable way to deploy infrastructure in multiple test environments. Here the decisive outcome must instead be: The app scales up during peaks and contracts without unbounded resource cost.

B:

That concept addresses this separate situation: A company wants fast restoration of accidentally deleted cloud data. It does not by itself establish the result required here: The app scales up during peaks and contracts without unbounded resource cost.

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: The app scales up during peaks and contracts without unbounded resource cost.

Question 206

A retail store needs its web service to tolerate unexpected demand while controlling spend. Which configuration or operating action most directly puts that decision into practice?

  1. Tune autoscale upper and lower bounds and watch charges against a budget.
  2. Review the applicable published SLA and implement qualifying deployment conditions.
  3. Deploy eligible instances across supported availability zones and test failover.
  4. Define separate load and fault tests in the release acceptance plan.

Explanation

Correct Answer

A:

Tune autoscale upper and lower bounds and watch charges against a budget. The implementation operationalizes this design choice: Balance elasticity policies with cost monitoring instead of permanently overprovisioning. Acceptance should demonstrate: The app scales up during peaks and contracts without unbounded resource cost.

Incorrect Answers

B:

That action implements a different requirement: An engineering firm wants to know which outages are covered by Azure SLAs. It does not establish the required result in this case: The app scales up during peaks and contracts without unbounded resource cost.

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: The app scales up during peaks and contracts without unbounded resource cost.

D:

This setup is relevant to another workload: An app owner assumes reliability and scalability are interchangeable attributes. The current configuration must instead achieve: The app scales up during peaks and contracts without unbounded resource cost.

Question 207

A retail store needs its web service to tolerate unexpected demand while controlling spend. Which observation is the strongest acceptance test for this scenario?

  1. An instance fault triggers availability behavior without waiting for a backup restore.
  2. Observed monthly latency stays within the agreed range under comparable load.
  3. The app scales up during peaks and contracts without unbounded resource cost.
  4. The documented design identifies the actual availability commitment and exclusions.

Explanation

Correct Answer

C:

The app scales up during peaks and contracts without unbounded resource cost. That directly tests the stated requirement: A retail store needs its web service to tolerate unexpected demand while controlling spend. It contrasts with the observed failure: A successful scale-out unexpectedly overwhelms the monthly budget.

Incorrect Answers

A:

This observation is evidence for a separate scenario: A school plans a cloud database and assumes backup copies alone deliver high availability. It does not test the necessary outcome here: The app scales up during peaks and contracts without unbounded resource cost.

B:

That check tests another control: A payroll team wants predictable monthly performance rather than only occasional availability. The decisive result for this workload is: The app scales up during peaks and contracts without unbounded resource cost.

D:

This observation is evidence for a separate scenario: An engineering firm wants to know which outages are covered by Azure SLAs. It does not test the necessary outcome here: The app scales up during peaks and contracts without unbounded resource cost.

Question 208

A retail store needs its web service to tolerate unexpected demand while controlling spend. The team observes: A successful scale-out unexpectedly overwhelms the monthly budget. Which planning or configuration error best accounts for this result?

  1. The policy standard existed only on paper and was not assigned or enforced.
  2. All replicas were concentrated in the same availability zone.
  3. Scaling lacked policy ceilings or cost controls.
  4. The architecture increased capacity without adding independent failure protection.

Explanation

Correct Answer

C:

Scaling lacked policy ceilings or cost controls. That explains the symptom: A successful scale-out unexpectedly overwhelms the monthly budget. The targeted corrective action is: Tune autoscale upper and lower bounds and watch charges against a budget.

Incorrect Answers

A:

This cause is consistent with a different issue: Teams deploy unapproved locations despite an internal governance document. It does not account for the reported symptom here: A successful scale-out unexpectedly overwhelms the monthly budget.

B:

The alternate mechanism would more directly produce this other failure: A zonal failure removes every application instance. The current incident instead involves: A successful scale-out unexpectedly overwhelms the monthly budget.

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: A successful scale-out unexpectedly overwhelms the monthly budget.

Question 209

A startup needs complete control of guest OS settings and kernel-level software. Which Azure or cloud concept most directly matches the requirement?

  1. Use a mixed service-model architecture where each tier has a justified responsibility boundary.
  2. Choose a managed SaaS productivity suite rather than custom hosting.
  3. Choose Azure virtual machines as IaaS for required guest OS control.
  4. Choose PaaS hosting that abstracts guest OS and platform patching.

Explanation

Correct Answer

C:

Choose Azure virtual machines as IaaS for required guest OS control. The governing requirement is: A startup needs complete control of guest OS settings and kernel-level software. This solution specifically supports the outcome that the team can configure its guest OS and runs required software.

Incorrect Answers

A:

This design is appropriate for a different requirement: A data science app needs managed relational storage but keeps its web tier on VMs. Here the decisive outcome must instead be: The team can configure its guest OS and runs required software.

B:

That concept addresses this separate situation: A sales team wants email, calendars, and collaboration without writing a custom application. It does not by itself establish the result required here: The team can configure its guest OS and runs required software.

D:

This design is appropriate for a different requirement: A web team wants to focus on application code and have Microsoft maintain underlying runtime infrastructure. Here the decisive outcome must instead be: The team can configure its guest OS and runs required software.

Question 210

A startup needs complete control of guest OS settings and kernel-level software. Which implementation step would best fulfill the stated requirement?

  1. Provision a supported Azure VM and manage the guest image and updates.
  2. Record which API requirements justify OS control before choosing the service model.
  3. Define runtime execution and customer data access roles separately.
  4. Assign secure-code, identity and data-policy controls to the application owner.

Explanation

Correct Answer

A:

Provision a supported Azure VM and manage the guest image and updates. The implementation operationalizes this design choice: Choose Azure virtual machines as IaaS for required guest OS control. Acceptance should demonstrate: The team can configure its guest OS and runs required software.

Incorrect Answers

B:

That action implements a different requirement: A company compares VM hosting against managed web hosting for a new API. It does not establish the required result in this case: The team can configure its guest OS and runs required software.

C:

This change would be appropriate under a different condition: A web company uses managed functions but stores data in a customer-controlled database. Here it would not validate: The team can configure its guest OS and runs required software.

D:

This setup is relevant to another workload: A customer expects Azure PaaS to remove all application security duties. The current configuration must instead achieve: The team can configure its guest OS and runs required software.

Microsoft Azure Fundamentals (AZ-900) Practice Tests

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