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Microsoft AZ-900 Practice Test 4

Question 30

A retailer wants to add many similar web workers when concurrent shopping sessions increase. Which configuration or operating action most directly puts that decision into practice?

  1. Budget monthly usage for the chosen Azure services instead of capitalizing server hardware.
  2. Document which controls Microsoft operates and which remain customer tasks.
  3. Configure an eligible scale set or autoscale rule to add worker instances.
  4. Resize the VM to a supported size with sufficient RAM after compatibility checks.

Explanation

Correct Answer

C:

Configure an eligible scale set or autoscale rule to add worker instances. The implementation operationalizes this design choice: Select horizontal scaling by adding instances instead of enlarging one machine. Acceptance should demonstrate: Additional worker instances join service as demand passes a threshold.

Incorrect Answers

A:

This setup is relevant to another workload: A healthcare group compares capital equipment expense against monthly operating expense for new servers. The current configuration must instead achieve: Additional worker instances join service as demand passes a threshold.

B:

That action implements a different requirement: A payments application needs clear division of security duties between Azure and its customer. It does not establish the required result in this case: Additional worker instances join service as demand passes a threshold.

D:

This setup is relevant to another workload: A scientific simulation requires more memory in a single process rather than a larger pool of workers. The current configuration must instead achieve: Additional worker instances join service as demand passes a threshold.

Question 31

A retailer wants to add many similar web workers when concurrent shopping sessions increase. Which observation is the strongest acceptance test for this scenario?

  1. The cross-provider comparison uses the same workload and expense categories.
  2. Additional worker instances join service as demand passes a threshold.
  3. Compute charges stop after deallocation while residual resource costs remain visible.
  4. The chosen pricing commitment fits the sustained usage without assuming all services are eligible.

Explanation

Correct Answer

B:

Additional worker instances join service as demand passes a threshold. That directly tests the stated requirement: A retailer wants to add many similar web workers when concurrent shopping sessions increase. It contrasts with the observed failure: Only the original server gets larger despite a requirement for multiple workers.

Incorrect Answers

A:

This observation is evidence for a separate scenario: A logistics provider wants to compare two cloud providers using more than the hourly VM price. It does not test the necessary outcome here: Additional worker instances join service as demand passes a threshold.

C:

The test is relevant when a charity wants to pay only for temporary virtual machines used during annual fundraising. It cannot establish the specified acceptance result: Additional worker instances join service as demand passes a threshold.

D:

This observation is evidence for a separate scenario: A museum has a predictable continuous workload and wants to compare commitments against pay-as-you-go pricing. It does not test the necessary outcome here: Additional worker instances join service as demand passes a threshold.

Question 32

A retailer wants to add many similar web workers when concurrent shopping sessions increase. The team observes: Only the original server gets larger despite a requirement for multiple workers. Which planning or configuration error best accounts for this result?

  1. The hybrid boundary was designed without required network isolation.
  2. The team assumed Azure host patching also patches customer-managed IaaS guests.
  3. Vertical resizing was chosen where horizontal instance growth was requested.
  4. The team confused capital purchasing with consumption-based cloud estimation.

Explanation

Correct Answer

C:

Vertical resizing was chosen where horizontal instance growth was requested. That explains the symptom: Only the original server gets larger despite a requirement for multiple workers. The targeted corrective action is: Configure an eligible scale set or autoscale rule to add worker instances.

Incorrect Answers

A:

This cause is consistent with a different issue: Internet portal users gain routes into plant-control subnets. It does not account for the reported symptom here: Only the original server gets larger despite a requirement for multiple workers.

B:

The alternate mechanism would more directly produce this other failure: Host maintenance completes while the guest OS remains vulnerable. The current incident instead involves: Only the original server gets larger despite a requirement for multiple workers.

D:

This cause is consistent with a different issue: The forecast uses only a one-time hardware price and omits recurring usage. It does not account for the reported symptom here: Only the original server gets larger despite a requirement for multiple workers.

Question 33

A scientific simulation requires more memory in a single process rather than a larger pool of workers. Which Azure or cloud concept most directly matches the requirement?

  1. Apply the shared-responsibility model based on the selected service type.
  2. Choose a hybrid deployment whose cloud portal does not expose factory-control systems.
  3. Prefer elastic resource allocation that can grow and shrink with demand.
  4. Select vertical scaling of an eligible VM size for one memory-bound process.

Explanation

Correct Answer

D:

Select vertical scaling of an eligible VM size for one memory-bound process. The governing requirement is: A scientific simulation requires more memory in a single process rather than a larger pool of workers. This solution specifically supports the outcome that the same single process receives the required memory capacity.

Incorrect Answers

A:

This design is appropriate for a different requirement: A payments application needs clear division of security duties between Azure and its customer. Here the decisive outcome must instead be: The same single process receives the required memory capacity.

B:

That concept addresses this separate situation: A factory wants network links and local devices to stay private but run a customer portal in Azure. It does not by itself establish the result required here: The same single process receives the required memory capacity.

C:

This option solves a different planning problem: A city website experiences occasional traffic spikes but must scale back after each public event. The current acceptance criterion is specific: The same single process receives the required memory capacity.

Question 34

A scientific simulation requires more memory in a single process rather than a larger pool of workers. Which implementation step would best fulfill the stated requirement?

  1. Resize the VM to a supported size with sufficient RAM after compatibility checks.
  2. Estimate high and low demand scenarios before buying eligible commitments.
  3. Separate private factory systems from public-facing portal access paths.
  4. Create an eligible function with an event trigger and required permissions.

Explanation

Correct Answer

A:

Resize the VM to a supported size with sufficient RAM after compatibility checks. The implementation operationalizes this design choice: Select vertical scaling of an eligible VM size for one memory-bound process. Acceptance should demonstrate: The same single process receives the required memory capacity.

Incorrect Answers

B:

That action implements a different requirement: A tax software team compares a pay-per-use option with prepaid cloud capacity for uncertain demand. It does not establish the required result in this case: The same single process receives the required memory capacity.

C:

This change would be appropriate under a different condition: A factory wants network links and local devices to stay private but run a customer portal in Azure. Here it would not validate: The same single process receives the required memory capacity.

D:

This setup is relevant to another workload: A software team wants to execute small event-triggered handlers without permanently managing server instances. The current configuration must instead achieve: The same single process receives the required memory capacity.

Question 35

A scientific simulation requires more memory in a single process rather than a larger pool of workers. Which result would best demonstrate successful implementation?

  1. The same single process receives the required memory capacity.
  2. Cost projections account for the varying number of requests.
  3. Restricted instrument commands stay on premises while allowed analysis runs in cloud.
  4. The operating model identifies provider-managed servers while developers deploy code.

Explanation

Correct Answer

A:

The same single process receives the required memory capacity. That directly tests the stated requirement: A scientific simulation requires more memory in a single process rather than a larger pool of workers. It contrasts with the observed failure: More small worker nodes appear, but the memory-bound process still fails.

Incorrect Answers

B:

That check tests another control: A mobile app calls a managed API thousands of times per day with variable demand. The decisive result for this workload is: The same single process receives the required memory capacity.

C:

The test is relevant when a research laboratory has highly restricted on-premises instruments but needs cloud analytics for approved exports. It cannot establish the specified acceptance result: The same single process receives the required memory capacity.

D:

This observation is evidence for a separate scenario: A service owner assumes serverless means applications have no servers at all. It does not test the necessary outcome here: The same single process receives the required memory capacity.

Question 36

A scientific simulation requires more memory in a single process rather than a larger pool of workers. The team observes: More small worker nodes appear, but the memory-bound process still fails. What should the team identify as the primary mechanism behind the problem?

  1. Horizontal scaling cannot increase addressable RAM for that single process.
  2. The architecture did not shift eligible event processing to managed compute.
  3. The design adopted public-cloud infrastructure instead of the mandated private model.
  4. The team confused capital purchasing with consumption-based cloud estimation.

Explanation

Correct Answer

A:

Horizontal scaling cannot increase addressable RAM for that single process. That explains the symptom: More small worker nodes appear, but the memory-bound process still fails. The targeted corrective action is: Resize the VM to a supported size with sufficient RAM after compatibility checks.

Incorrect Answers

B:

The alternate mechanism would more directly produce this other failure: An idle, customer-managed VM remains the mandatory image-processing host. The current incident instead involves: More small worker nodes appear, but the memory-bound process still fails.

C:

That explanation belongs to a different fault pattern: A public provider owns and operates the physical hosts against the requirement. It does not explain why more small worker nodes appear, but the memory-bound process still fails.

D:

This cause is consistent with a different issue: The forecast uses only a one-time hardware price and omits recurring usage. It does not account for the reported symptom here: More small worker nodes appear, but the memory-bound process still fails.

Question 37

A payments application needs clear division of security duties between Azure and its customer. Which design choice best fits the stated business constraint?

  1. Recognize cloud consumption as operating expenditure rather than an upfront server purchase.
  2. Select metered IaaS capacity with an explicit shutdown or deallocation plan.
  3. Apply the shared-responsibility model based on the selected service type.
  4. Host the site in a public-cloud service operated by a cloud provider.

Explanation

Correct Answer

C:

Apply the shared-responsibility model based on the selected service type. The governing requirement is: A payments application needs clear division of security duties between Azure and its customer. This solution specifically supports the outcome that customer-managed identities and data permissions have assigned owners.

Incorrect Answers

A:

This design is appropriate for a different requirement: A healthcare group compares capital equipment expense against monthly operating expense for new servers. Here the decisive outcome must instead be: Customer-managed identities and data permissions have assigned owners.

B:

That concept addresses this separate situation: A charity wants to pay only for temporary virtual machines used during annual fundraising. It does not by itself establish the result required here: Customer-managed identities and data permissions have assigned owners.

D:

This design is appropriate for a different requirement: A small publisher wants its website online without operating a physical data center. Here the decisive outcome must instead be: Customer-managed identities and data permissions have assigned owners.

Question 38

A payments application needs clear division of security duties between Azure and its customer. Which Azure setup action best follows from this scenario?

  1. Configure an eligible scale set or autoscale rule to add worker instances.
  2. Document which controls Microsoft operates and which remain customer tasks.
  3. Enter the expected service configuration and usage into the Azure Pricing Calculator.
  4. Keep required local control dependencies available while synchronizing approved cloud records.

Explanation

Correct Answer

B:

Document which controls Microsoft operates and which remain customer tasks. The implementation operationalizes this design choice: Apply the shared-responsibility model based on the selected service type. Acceptance should demonstrate: Customer-managed identities and data permissions have assigned owners.

Incorrect Answers

A:

This setup is relevant to another workload: A retailer wants to add many similar web workers when concurrent shopping sessions increase. The current configuration must instead achieve: Customer-managed identities and data permissions have assigned owners.

C:

This change would be appropriate under a different condition: A startup's finance team wants an estimate before moving a service to Azure. Here it would not validate: Customer-managed identities and data permissions have assigned owners.

D:

This setup is relevant to another workload: A power utility wants critical local operations to continue during intermittent cloud connectivity. The current configuration must instead achieve: Customer-managed identities and data permissions have assigned owners.

Question 39

A payments application needs clear division of security duties between Azure and its customer. Which verification outcome should the team expect from the right design?

  1. The selection tolerates low usage without paying for large unused committed capacity.
  2. Utilization and charges fall after student registrations finish.
  3. Capacity tests stay within approved quota and supported region stock.
  4. Customer-managed identities and data permissions have assigned owners.

Explanation

Correct Answer

D:

Customer-managed identities and data permissions have assigned owners. That directly tests the stated requirement: A payments application needs clear division of security duties between Azure and its customer. It contrasts with the observed failure: Administrators assume Microsoft will grant least-privilege access automatically.

Incorrect Answers

A:

This observation is evidence for a separate scenario: A tax software team compares a pay-per-use option with prepaid cloud capacity for uncertain demand. It does not test the necessary outcome here: Customer-managed identities and data permissions have assigned owners.

B:

That check tests another control: A school runs its busiest workload only during semester registration. The decisive result for this workload is: Customer-managed identities and data permissions have assigned owners.

C:

The test is relevant when a retailer is told cloud platforms provide unlimited resources instantly. It cannot establish the specified acceptance result: Customer-managed identities and data permissions have assigned owners.

Question 40

A payments application needs clear division of security duties between Azure and its customer. The team observes: Administrators assume Microsoft will grant least-privilege access automatically. Which underlying mistake most directly explains the reported symptom?

  1. The architecture did not shift eligible event processing to managed compute.
  2. It misclassified pay-as-you-go cloud charges as owned-capital equipment.
  3. It applied a commitment benefit without checking resource eligibility and usage terms.
  4. The team confused provider infrastructure duties with customer configuration duties.

Explanation

Correct Answer

D:

The team confused provider infrastructure duties with customer configuration duties. That explains the symptom: Administrators assume Microsoft will grant least-privilege access automatically. The targeted corrective action is: Document which controls Microsoft operates and which remain customer tasks.

Incorrect Answers

A:

This cause is consistent with a different issue: An idle, customer-managed VM remains the mandatory image-processing host. It does not account for the reported symptom here: Administrators assume Microsoft will grant least-privilege access automatically.

B:

The alternate mechanism would more directly produce this other failure: The finance plan still assumes five-year depreciation of purchased compute hardware. The current incident instead involves: Administrators assume Microsoft will grant least-privilege access automatically.

C:

That explanation belongs to a different fault pattern: The contract assumes a discount applies to an unsupported charge. It does not explain why administrators assume Microsoft will grant least-privilege access automatically.

Microsoft Azure Fundamentals (AZ-900) Practice Tests

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