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Amazon AWS Certified Solutions Architect - Professional SAP-C02 Bundle

Exam Code: AWS Certified Solutions Architect - Professional SAP-C02

Exam Name AWS Certified Solutions Architect - Professional SAP-C02

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Amazon AWS Certified Solutions Architect - Professional SAP-C02 Practice Test 75

Question 740

An enterprise architecture team faces this design requirement: Variable monthly expenses must trigger alerts for unusual spending spikes without predefined per-service thresholds. Which architecture decision best meets that precise requirement?

  1. Use Compute Optimizer and validate monitoring data before right-sizing eligible instances
  2. Set up AWS Cost Anomaly Detection with relevant monitors and alert subscriptions
  3. Share the eligible Transit Gateway using AWS Resource Access Manager and explicit attachment routing permissions
  4. Activate standardized cost allocation tags and enforce tagging through governance processes

Explanation

Correct Answer

B:

Cost Anomaly Detection learns spending patterns and flags unusual expenditures. The required architecture outcome is: Variable monthly expenses must trigger alerts for unusual spending spikes without predefined per-service thresholds. Validate this choice by checking that A synthetic or observed unusual cost pattern appears in anomaly alerts with impacted spend drivers.

Incorrect Answers

A:

Instances were resized from average CPU alone despite memory or traffic constraints. The specific problem here is that static budgets cannot explain or detect each atypical spend pattern promptly.

C:

Each application team is provisioning its own disconnected backbone gateway. The specific problem here is that static budgets cannot explain or detect each atypical spend pattern promptly.

D:

Resource tags were never activated as billing cost allocation dimensions. The specific problem here is that static budgets cannot explain or detect each atypical spend pattern promptly.

Question 741

For the enterprise requirement "A global enterprise wants a portfolio-level view of application migrations, owners, blockers and cutover states", the team implemented this change: Track AWS Transform migration wave and server states, and maintain centrally owned application milestones, blockers and cutover decisions. What observed result would demonstrate successful delivery of the requested capability?

  1. Vendor-certified testing proves that the appliance runs on the selected target or requires retain/replace decision
  2. Owners can trace migration milestones and blockers for each workload without conflicting local spreadsheets
  3. The proposed target design has documented permitted license use and tracked license utilization
  4. A pilot demonstrates the chosen mainframe transformation path and acceptable business results

Explanation

Correct Answer

B:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. A centralized migration tracking layer supports coordination across application teams. The acceptance condition is linked directly to the scenario: A global enterprise wants a portfolio-level view of application migrations, owners, blockers and cutover states.

Incorrect Answers

A:

Vendor-certified testing proves that the appliance runs on the selected target or requires retain/replace decision. However, this does not establish the required outcome: owners can trace migration milestones and blockers for each workload without conflicting local spreadsheets.

C:

The proposed target design has documented permitted license use and tracked license utilization. However, this does not establish the required outcome: owners can trace migration milestones and blockers for each workload without conflicting local spreadsheets.

D:

A pilot demonstrates the chosen mainframe transformation path and acceptable business results. However, this does not establish the required outcome: owners can trace migration milestones and blockers for each workload without conflicting local spreadsheets.

Question 742

A professional architect is reviewing two independent workstreams. Requirement A: An application runs a small cron job on a permanently running EC2 server, which spends most time idle. Requirement B: A global enterprise wants a portfolio-level view of application migrations, owners, blockers and cutover states. Choose TWO remedies that meet A and B respectively.

  1. Track AWS Transform migration wave and server states, and maintain centrally owned application milestones, blockers and cutover decisions
  2. Apply the strangler pattern, routing one well-defined capability at a time to a tested new service
  3. Extract suitable endpoints to API Gateway and Lambda with explicit authentication, throttling and timeout controls
  4. Classify sensitive datasets and map AWS Regions, key ownership and access controls before selecting migration waves
  5. Move the schedule to EventBridge Scheduler with an appropriately scoped Lambda or supported task target

Explanation

Correct Answers

A:

This action meets the independently stated requirement B: A global enterprise wants a portfolio-level view of application migrations, owners, blockers and cutover states. A centralized migration tracking layer supports coordination across application teams. A direct acceptance check is: Owners can trace migration milestones and blockers for each workload without conflicting local spreadsheets.

E:

This action meets the independently stated requirement A: An application runs a small cron job on a permanently running EC2 server, which spends most time idle. Managed scheduling can invoke short-lived compute without operating a permanent cron host. A direct acceptance check is: The job executes at its configured schedule while no dedicated idle EC2 host is required.

Incorrect Answers

B:

This action targets a different technical need: A legacy monolith must be separated into business capabilities gradually without taking a risky one-time rewrite. It does not replace either required solution in A or B. Incremental strangler migration reduces cutover risk through bounded feature replacement; verify the two stated requirements independently rather than accepting an unrelated change.

C:

This action targets a different technical need: An internal monolithic API has independently scalable request handlers and low idle traffic. It does not replace either required solution in A or B. Serverless APIs can separate scaling from continuously provisioned application servers; verify the two stated requirements independently rather than accepting an unrelated change.

D:

This action targets a different technical need: A personal-health-record system has strict regional data residency and encryption obligations before any cloud transfer. It does not replace either required solution in A or B. Regulatory and data-classification constraints affect target location and migration scope; verify the two stated requirements independently rather than accepting an unrelated change.

Question 743

For the enterprise requirement "An ecommerce backend repeatedly recomputes expensive reads for product listings that change infrequently", the team implemented this change: Introduce caching with explicit expiry and invalidation policies using CloudFront or ElastiCache as appropriate. Which observation should be required before the change is approved?

  1. Inventory changes can deploy without forcing unrelated checkout and customer workflows through full regression
  2. Invoice updates arrive at consumers within the required lag and replay does not duplicate side effects
  3. Destination table state stays synchronized and the application passes a reversible cutover test
  4. Hot listing requests avoid origin recomputation while updates invalidate stale items within product SLAs

Explanation

Correct Answer

D:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Correct cache placement and invalidation reduce repeated work without violating freshness needs. The acceptance condition is linked directly to the scenario: An ecommerce backend repeatedly recomputes expensive reads for product listings that change infrequently.

Incorrect Answers

A:

Inventory changes can deploy without forcing unrelated checkout and customer workflows through full regression. However, this does not establish the required outcome: hot listing requests avoid origin recomputation while updates invalidate stale items within product SLAs.

B:

Invoice updates arrive at consumers within the required lag and replay does not duplicate side effects. However, this does not establish the required outcome: hot listing requests avoid origin recomputation while updates invalidate stale items within product SLAs.

C:

Destination table state stays synchronized and the application passes a reversible cutover test. However, this does not establish the required outcome: hot listing requests avoid origin recomputation while updates invalidate stale items within product SLAs.

Question 744

A professional architect is reviewing two independent workstreams. Requirement A: A shared EFS file system slows a data-processing batch even though compute workers are mostly idle. Requirement B: A rarely used API experiences extreme idle hours and unpredictable spikes, making always-on EC2 capacity uneconomic. Which TWO recommendations jointly satisfy requirements A and B?

  1. Evaluate a serverless API Gateway and Lambda architecture with cold-start and concurrency testing
  2. Add an S3 gateway VPC endpoint and route supported S3 traffic privately rather than through NAT
  3. Evaluate EFS throughput and performance modes and provision an appropriate supported throughput setting
  4. Introduce DynamoDB DAX for supported cacheable read paths and check data freshness requirements
  5. Use an Application Load Balancer with Auto Scaling groups spanning multiple AZs and health checks

Explanation

Correct Answers

A:

This action meets the independently stated requirement B: A rarely used API experiences extreme idle hours and unpredictable spikes, making always-on EC2 capacity uneconomic. Serverless consumption models can reduce idle infrastructure charges for intermittent traffic. A direct acceptance check is: The API meets latency SLOs under bursts and incurs low idle compute spend without permanently allocated hosts.

C:

This action meets the independently stated requirement A: A shared EFS file system slows a data-processing batch even though compute workers are mostly idle. EFS throughput characteristics must match concurrent IO patterns and required sustained rate. A direct acceptance check is: File-system throughput reaches target under representative concurrent processing without exhausted credits.

Incorrect Answers

B:

This action targets a different technical need: An application accesses S3 heavily from private VPC subnets and pays large NAT Gateway processing charges for those requests. It does not replace either required solution in A or B. Gateway endpoints can avoid NAT traversal for eligible S3 and DynamoDB traffic; verify the two stated requirements independently rather than accepting an unrelated change.

D:

This action targets a different technical need: A product catalog on DynamoDB receives many repeated eventually consistent key lookups and requires microsecond cache responses. It does not replace either required solution in A or B. DAX offers managed in-memory caching for eligible DynamoDB read workloads; verify the two stated requirements independently rather than accepting an unrelated change.

E:

This action targets a different technical need: An internet service must survive one Availability Zone failure while adjusting to fluctuating weekday usage. It does not replace either required solution in A or B. Multi-AZ target placement and health-driven scaling provide elastic zonal resilience; verify the two stated requirements independently rather than accepting an unrelated change.

Question 745

A deployed environment still does not meet the original requirement: A platform team learns about upcoming service maintenance only after workloads start failing. Which underlying cause should be investigated first?

  1. Health checks use an unrelated always-200 endpoint that does not reflect the service readiness
  2. Config findings are left as unactioned notifications while risky drift remains exposed
  3. Service-specific Health notifications are not routed into incident processes
  4. Untracked imperative orchestration repeats previous side effects after transient failures

Explanation

Correct Answer

C:

This is the technical design error aligned with the unmet requirement. AWS Health can surface AWS-side events relevant to affected resources and accounts. The appropriate correction is: Integrate AWS Health organizational events with EventBridge alerts and owner routing. The control should then be tested by verifying that Simulated or published applicable Health events reach the responsible operations group before planned impact.

Incorrect Answers

A:

Health checks use an unrelated always-200 endpoint that does not reflect the service readiness. The stated evidence instead indicates: Service-specific Health notifications are not routed into incident processes.

B:

Config findings are left as unactioned notifications while risky drift remains exposed. The stated evidence instead indicates: Service-specific Health notifications are not routed into incident processes.

D:

Untracked imperative orchestration repeats previous side effects after transient failures. The stated evidence instead indicates: Service-specific Health notifications are not routed into incident processes.

Question 746

An architecture review recommends this solution: Enable and configure supported RDS storage autoscaling limits and monitor growth patterns. The motivating situation is: A managed relational database continuously exceeds planned storage allocation but manual overprovisioning wastes capacity. Which consideration makes this solution preferable to the original approach?

  1. Lifecycle transitions reduce storage expense only if retrieval and minimum-duration constraints fit
  2. Compute Savings Plans discount eligible compute spending with an hourly commitment
  3. Blue-green deployment separates old and new environments to support safe traffic shifting
  4. RDS storage autoscaling can add storage within configured limits but does not automatically shrink it

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Enable and configure supported RDS storage autoscaling limits and monitor growth patterns. The expected supporting evidence is: Free storage stays above emergency thresholds while capacity grows within policy rather than being oversized initially.

Incorrect Answers

A:

Objects remain indefinitely in higher-cost storage despite a proven low-access retention pattern. The stated evidence instead indicates: Storage capacity was fixed without safe growth management under variable data requirements.

B:

Stable compute baseline is paid at on-demand rates without analyzed commitments. The stated evidence instead indicates: Storage capacity was fixed without safe growth management under variable data requirements.

C:

In-place overwriting of every production instance removed the healthy comparison environment. The stated evidence instead indicates: Storage capacity was fixed without safe growth management under variable data requirements.

Question 747

A deployed environment still does not meet the original requirement: A message-processing application still uses an on-premises ActiveMQ-compatible broker and cannot immediately rewrite producers. Which root cause is most consistent with the observation?

  1. Shared data and internal method calls prevent independent deployment and scale
  2. Local instance disks are wrongly used as a shared durable POSIX file system
  3. Developers assume SQS has identical JMS or broker feature semantics to the source stack
  4. A direct S3 SDK rewrite was imposed on workloads that cannot change their file interface

Explanation

Correct Answer

C:

This is the technical design error aligned with the unmet requirement. Amazon MQ can support compatible managed message brokers when protocol continuity matters. The appropriate correction is: Evaluate Amazon MQ with an appropriate compatible engine and migrate broker connections in stages. The control should then be tested by verifying that Existing clients publish and consume messages with acceptable protocol compatibility after controlled cutover.

Incorrect Answers

A:

Shared data and internal method calls prevent independent deployment and scale. The stated evidence instead indicates: Developers assume SQS has identical JMS or broker feature semantics to the source stack.

B:

Local instance disks are wrongly used as a shared durable POSIX file system. The stated evidence instead indicates: Developers assume SQS has identical JMS or broker feature semantics to the source stack.

D:

A direct S3 SDK rewrite was imposed on workloads that cannot change their file interface. The stated evidence instead indicates: Developers assume SQS has identical JMS or broker feature semantics to the source stack.

Question 748

An enterprise architecture team faces this design requirement: An application accesses S3 heavily from private VPC subnets and pays large NAT Gateway processing charges for those requests. Which proposed change addresses the stated constraint most directly?

  1. Apply S3 Intelligent-Tiering with suitable monitoring and eligibility checks
  2. Scale ECS services or EC2 Auto Scaling from queue depth and processing time metrics
  3. Implement a tested backup-and-restore disaster recovery pattern with documented recovery runbooks
  4. Add an S3 gateway VPC endpoint and route supported S3 traffic privately rather than through NAT

Explanation

Correct Answer

D:

Gateway endpoints can avoid NAT traversal for eligible S3 and DynamoDB traffic. The required architecture outcome is: An application accesses S3 heavily from private VPC subnets and pays large NAT Gateway processing charges for those requests. Validate this choice by checking that NAT processed-byte charges for eligible S3 traffic fall while S3 requests still succeed under endpoint policy.

Incorrect Answers

A:

Fixed hot storage is retained for every object because teams cannot forecast access patterns. The specific problem here is that s3 calls egress through NAT because no supported endpoint route was configured.

B:

Static worker capacity ignores observable demand while processing latency varies. The specific problem here is that s3 calls egress through NAT because no supported endpoint route was configured.

C:

A backup exists but no restore procedure or measured restore duration has been proven. The specific problem here is that s3 calls egress through NAT because no supported endpoint route was configured.

Question 749

For the enterprise requirement "Finance collects optimizer suggestions from Compute Optimizer, Trusted Advisor and cost dashboards but counts the same recommendation more than once", the team implemented this change: Use Cost Optimization Hub for supported consolidated recommendations and track deduplicated savings. Which result specifically demonstrates the fix works?

  1. Unhealthy containers leave active target selection promptly while healthy targets continue receiving requests
  2. Finance reports one adjusted opportunity per overlapping recommendation source
  3. Chosen sizes meet memory and peak latency needs while reducing wasteful instance spending
  4. Tested gp3 configuration meets IO SLOs at lower monthly storage and provisioned-performance cost

Explanation

Correct Answer

B:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Consolidated savings recommendations should not be summed blindly across sources. The acceptance condition is linked directly to the scenario: Finance collects optimizer suggestions from Compute Optimizer, Trusted Advisor and cost dashboards but counts the same recommendation more than once.

Incorrect Answers

A:

Unhealthy containers leave active target selection promptly while healthy targets continue receiving requests. However, this does not establish the required outcome: finance reports one adjusted opportunity per overlapping recommendation source.

C:

Chosen sizes meet memory and peak latency needs while reducing wasteful instance spending. However, this does not establish the required outcome: finance reports one adjusted opportunity per overlapping recommendation source.

D:

Tested gp3 configuration meets IO SLOs at lower monthly storage and provisioned-performance cost. However, this does not establish the required outcome: finance reports one adjusted opportunity per overlapping recommendation source.

Question 750

A deployed environment still does not meet the original requirement: An S3 bucket is repeatedly made public and security wants prompt correction beyond simply generating findings. What explains why the stated requirement was not met?

  1. Untracked imperative orchestration repeats previous side effects after transient failures
  2. Teams purchase more RIs independently without measuring existing shared coverage
  3. Metrics and logs are not organized into actionable per-service operational signals
  4. Config findings are left as unactioned notifications while risky drift remains exposed

Explanation

Correct Answer

D:

This is the technical design error aligned with the unmet requirement. Config rules can invoke automations for selected remediable configuration noncompliance. The appropriate correction is: Pair an AWS Config detection rule with controlled Systems Manager Automation remediation and change safeguards. The control should then be tested by verifying that A deliberately noncompliant bucket triggers the configured corrective control and audit records.

Incorrect Answers

A:

Untracked imperative orchestration repeats previous side effects after transient failures. The stated evidence instead indicates: Config findings are left as unactioned notifications while risky drift remains exposed.

B:

Teams purchase more RIs independently without measuring existing shared coverage. The stated evidence instead indicates: Config findings are left as unactioned notifications while risky drift remains exposed.

C:

Metrics and logs are not organized into actionable per-service operational signals. The stated evidence instead indicates: Config findings are left as unactioned notifications while risky drift remains exposed.