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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

Certification Provider: Amazon

Corresponding Certification: AWS Certified Solutions Architect - Professional

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Amazon AWS Certified Solutions Architect - Professional SAP-C02 Practice Test 31

Question 300

A professional architect is reviewing two independent workstreams. Requirement A: A multinational website repeatedly serves cacheable large assets and incurs high origin data-transfer and request charges. Requirement B: A Lambda-backed API team wants to expose only ten percent of traffic to a new function revision before promoting it. Which TWO controls should be used together for these separate scenarios?

  1. Use CodePipeline stages with independent regional deploy actions and a manual approval gate before the restricted stage
  2. Apply S3 Intelligent-Tiering with suitable monitoring and eligibility checks
  3. Tune CloudFront cache policies and origin behavior to increase cache hits while honoring freshness limits
  4. Publish a Lambda version and configure weighted alias routing with deployment alarms
  5. Add AWS WAF rate-based rules scoped to the API's web ACL with suitable action and monitoring

Explanation

Correct Answers

C:

This action meets the independently stated requirement A: A multinational website repeatedly serves cacheable large assets and incurs high origin data-transfer and request charges. Effective caching can reduce origin load and transfer cost for eligible content. A direct acceptance check is: Origin request count and cacheable transferred bytes fall without serving stale protected content.

D:

This action meets the independently stated requirement B: A Lambda-backed API team wants to expose only ten percent of traffic to a new function revision before promoting it. Lambda aliases support weighted traffic between published versions with monitored promotion. A direct acceptance check is: The alias sends the intended approximate percentage to the canary version and reverts after a simulated alarm.

Incorrect Answers

A:

This action targets a different technical need: A product releases the same service to two Regions and must require a compliance approval before the second Region goes live. It does not replace either required solution in A or B. Multi-Region pipelines can enforce explicit promotion and approval boundaries; verify the two stated requirements independently rather than accepting an unrelated change.

B:

This action targets a different technical need: Unpredictably accessed objects are retained for a year, but no reliable access-frequency segmentation is known. It does not replace either required solution in A or B. S3 Intelligent-Tiering can move eligible objects among access tiers based on access frequency; verify the two stated requirements independently rather than accepting an unrelated change.

E:

This action targets a different technical need: A public API has repeated abusive requests from a single source network but normal distributed traffic should continue. It does not replace either required solution in A or B. WAF rate-based rules can limit excessive HTTP request patterns by aggregation key; verify the two stated requirements independently rather than accepting an unrelated change.

Question 301

A deployed environment still does not meet the original requirement: A multinational website repeatedly serves cacheable large assets and incurs high origin data-transfer and request charges. Which failure mechanism should the team correct?

  1. Static worker capacity ignores observable demand while processing latency varies
  2. The workload uses only on-demand capacity despite safe restart or checkpoint semantics
  3. The CDN forwards every request to origin due to ineffective cache keys or caching headers
  4. A single active Region was incorrectly advertised as having near-zero recovery time

Explanation

Correct Answer

C:

This is the technical design error aligned with the unmet requirement. Effective caching can reduce origin load and transfer cost for eligible content. The appropriate correction is: Tune CloudFront cache policies and origin behavior to increase cache hits while honoring freshness limits. The control should then be tested by verifying that Origin request count and cacheable transferred bytes fall without serving stale protected content.

Incorrect Answers

A:

Static worker capacity ignores observable demand while processing latency varies. The stated evidence instead indicates: The CDN forwards every request to origin due to ineffective cache keys or caching headers.

B:

The workload uses only on-demand capacity despite safe restart or checkpoint semantics. The stated evidence instead indicates: The CDN forwards every request to origin due to ineffective cache keys or caching headers.

D:

A single active Region was incorrectly advertised as having near-zero recovery time. The stated evidence instead indicates: The CDN forwards every request to origin due to ineffective cache keys or caching headers.

Question 302

A professional architect is reviewing two independent workstreams. Requirement A: Audit findings in application accounts must trigger an event-driven central incident triage workflow. Requirement B: Dozens of overprovisioned EC2 instances need evidence-based CPU and memory sizing recommendations before changing families. Select TWO independent changes that meet the named requirements.

  1. Use Compute Optimizer and validate monitoring data before right-sizing eligible instances
  2. Apply a targeted Organizations service control policy denying prohibited CloudTrail disablement actions in affected OUs
  3. Use distinct AWS Organizations organizational units and apply targeted service control policies per OU
  4. Publish permitted events across account boundaries to a central EventBridge event bus with explicit resource policy
  5. Use AWS Cost Optimization Hub with supported account enrollment and recommendation aggregation

Explanation

Correct Answers

A:

This action meets the independently stated requirement B: Dozens of overprovisioned EC2 instances need evidence-based CPU and memory sizing recommendations before changing families. Compute Optimizer uses resource metrics and recommendations but must be checked against workload SLOs. A direct acceptance check is: Tested resized instances meet p95 latency goals while recommended savings are observed.

D:

This action meets the independently stated requirement A: Audit findings in application accounts must trigger an event-driven central incident triage workflow. EventBridge cross-account routing requires rules and resource-based permissions. A direct acceptance check is: Events from a test member account reach the central incident workflow and unauthorized senders are rejected.

Incorrect Answers

B:

This action targets a different technical need: A multi-account organization must prevent member accounts from disabling mandatory CloudTrail trails even when local administrators hold broad IAM policies. It does not replace either required solution in A or B. Service control policies set permission ceilings for member account principals and cannot grant access themselves; verify the two stated requirements independently rather than accepting an unrelated change.

C:

This action targets a different technical need: Legal and nonproduction workloads require different organizational guardrails but must share central billing. It does not replace either required solution in A or B. Organizational units help assign governance boundaries to related member accounts; verify the two stated requirements independently rather than accepting an unrelated change.

E:

This action targets a different technical need: Operations needs one centralized queue of cost optimization recommendations from multiple AWS services. It does not replace either required solution in A or B. Cost Optimization Hub consolidates and de-duplicates supported AWS cost recommendations; verify the two stated requirements independently rather than accepting an unrelated change.

Question 303

A professional architect is reviewing two independent workstreams. Requirement A: Business units need temporary developer access to multiple accounts but not permanent local IAM users. Requirement B: Variable monthly expenses must trigger alerts for unusual spending spikes without predefined per-service thresholds. Which TWO recommendations jointly satisfy requirements A and B?

  1. Set up AWS Cost Anomaly Detection with relevant monitors and alert subscriptions
  2. Deploy organization-managed AWS Config rules and targeted auto-remediation through approved Systems Manager Automation
  3. Set up IAM Identity Center account assignments with role-scoped permission sets and centralized joiner-leaver management
  4. Enable VPC subnet sharing through AWS RAM for eligible accounts in the same organization
  5. Analyze commitments then purchase an appropriate Compute Savings Plan based on supported usage coverage

Explanation

Correct Answers

A:

This action meets the independently stated requirement B: Variable monthly expenses must trigger alerts for unusual spending spikes without predefined per-service thresholds. Cost Anomaly Detection learns spending patterns and flags unusual expenditures. A direct acceptance check is: A synthetic or observed unusual cost pattern appears in anomaly alerts with impacted spend drivers.

C:

This action meets the independently stated requirement A: Business units need temporary developer access to multiple accounts but not permanent local IAM users. Central identity assignments reduce stale credentials and standardize workforce access. A direct acceptance check is: Revoking a staff member's assignment removes their delegated access without per-account user deletion.

Incorrect Answers

B:

This action targets a different technical need: Regulators require consistent detection and correction of publicly accessible S3 buckets across a multi-account organization. It does not replace either required solution in A or B. Organization-level Config rules continuously evaluate configuration and can launch controlled remediations; verify the two stated requirements independently rather than accepting an unrelated change.

D:

This action targets a different technical need: Network administrators must manage a shared subnet centrally while application accounts place their own resources in it. It does not replace either required solution in A or B. VPC sharing separates network ownership from application resource ownership; verify the two stated requirements independently rather than accepting an unrelated change.

E:

This action targets a different technical need: Several accounts have steady EC2 and Fargate spend and need a commitment that applies to qualifying compute usage flexibly. It does not replace either required solution in A or B. Compute Savings Plans apply eligible usage discounts across supported services and configurations; verify the two stated requirements independently rather than accepting an unrelated change.

Question 304

An architecture review recommends this solution: Package services into supported containers and deploy with ECS on Fargate and scalable load balancing. The motivating situation is: A monolithic Windows process has been decomposed into HTTP services that can run in managed containers without operating its own servers. Which architectural reasoning is most accurate for the choice?

  1. AWS DMS can move data using full load and ongoing CDC for supported sources
  2. Event-driven boundaries isolate failure but require idempotency and message-delivery governance
  3. Aurora offers managed high availability features for supported relational engines
  4. Fargate can run supported ECS container tasks without customer-managed worker hosts

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Package services into supported containers and deploy with ECS on Fargate and scalable load balancing. The expected supporting evidence is: Services scale independently and teams do not manage EC2 container worker hosts.

Incorrect Answers

A:

One-time offline export cannot satisfy the narrow write-freeze window. The stated evidence instead indicates: Dedicated EC2 servers remain the scaling bottleneck for stateless containerized workloads.

B:

Tight synchronous coupling propagates a noncritical downstream failure to the primary transaction. The stated evidence instead indicates: Dedicated EC2 servers remain the scaling bottleneck for stateless containerized workloads.

C:

Application reliability still depends on one unmanaged database host and manual restores. The stated evidence instead indicates: Dedicated EC2 servers remain the scaling bottleneck for stateless containerized workloads.

Question 305

A deployed environment still does not meet the original requirement: An operations team must roll out the same hardened EC2 AMI to many accounts with recorded patch and test history. Which failure mechanism should the team correct?

  1. The function's unqualified ARN always invokes latest code for all users, bypassing version routing
  2. All containers share a single placement failure domain and cannot be rescheduled in time
  3. Each team independently patches hand-built machine images without reproducible validation
  4. Independent release scripts lack enforceable promotion ordering and approval evidence

Explanation

Correct Answer

C:

This is the technical design error aligned with the unmet requirement. EC2 Image Builder automates reproducible image lifecycles with testing and distribution. The appropriate correction is: Use EC2 Image Builder pipelines for controlled image build, testing and account or Region distribution. The control should then be tested by verifying that The resulting image has verified packages, a traceable version and permitted availability in target accounts.

Incorrect Answers

A:

The function's unqualified ARN always invokes latest code for all users, bypassing version routing. The stated evidence instead indicates: Each team independently patches hand-built machine images without reproducible validation.

B:

All containers share a single placement failure domain and cannot be rescheduled in time. The stated evidence instead indicates: Each team independently patches hand-built machine images without reproducible validation.

D:

Independent release scripts lack enforceable promotion ordering and approval evidence. The stated evidence instead indicates: Each team independently patches hand-built machine images without reproducible validation.

Question 306

A deployed environment still does not meet the original requirement: A business database needs a low-downtime migration from on-premises PostgreSQL to Amazon RDS PostgreSQL. What design flaw is the best match for the reported condition?

  1. Application reliability still depends on one unmanaged database host and manual restores
  2. One-time offline export cannot satisfy the narrow write-freeze window
  3. The migration plan assumes a new AWS Snowball Edge device can still be ordered even though new-customer ordering is unavailable
  4. Manual one-time disk copying cannot keep hundreds of moving workloads synchronized until cutover

Explanation

Correct Answer

B:

This is the technical design error aligned with the unmet requirement. AWS DMS can move data using full load and ongoing CDC for supported sources. The appropriate correction is: Use AWS DMS full load plus change data capture with compatible schema and monitored replication task. The control should then be tested by verifying that Destination rows converge with source changes and validated CDC lag allows the final switchover.

Incorrect Answers

A:

Application reliability still depends on one unmanaged database host and manual restores. The stated evidence instead indicates: One-time offline export cannot satisfy the narrow write-freeze window.

C:

The migration plan assumes a new AWS Snowball Edge device can still be ordered even though new-customer ordering is unavailable. The stated evidence instead indicates: One-time offline export cannot satisfy the narrow write-freeze window.

D:

Manual one-time disk copying cannot keep hundreds of moving workloads synchronized until cutover. The stated evidence instead indicates: One-time offline export cannot satisfy the narrow write-freeze window.

Question 307

A deployed environment still does not meet the original requirement: A global ECS deployment pulls private container images in two Regions and cannot depend on a cross-Region pull at recovery time. What explains why the stated requirement was not met?

  1. The disaster-recovery Region has no local image copy and the deployment assumes remote registry availability
  2. Every static asset fetch goes to a distant origin instead of the edge cache
  3. Console-created infrastructure diverged from versioned architecture definitions
  4. Individual account stacks were created manually and drift from the approved baseline

Explanation

Correct Answer

A:

This is the technical design error aligned with the unmet requirement. ECR repository replication supports regional availability of container images when configured. The appropriate correction is: Configure Amazon ECR cross-Region replication for the approved image repositories with regional deployment references. The control should then be tested by verifying that The released image digest is present in each target Region before workloads attempt recovery.

Incorrect Answers

B:

Every static asset fetch goes to a distant origin instead of the edge cache. The stated evidence instead indicates: The disaster-recovery Region has no local image copy and the deployment assumes remote registry availability.

C:

Console-created infrastructure diverged from versioned architecture definitions. The stated evidence instead indicates: The disaster-recovery Region has no local image copy and the deployment assumes remote registry availability.

D:

Individual account stacks were created manually and drift from the approved baseline. The stated evidence instead indicates: The disaster-recovery Region has no local image copy and the deployment assumes remote registry availability.

Question 308

A professional architect is reviewing two independent workstreams. Requirement A: Globally dispersed users require low-latency local writes to the same DynamoDB dataset with multi-Region availability. Requirement B: An organization needs a central security team to administer Inspector or GuardDuty for member accounts without using the management account daily. Which TWO controls should be used together for these separate scenarios?

  1. Set up AWS Cost Anomaly Detection with relevant monitors and alert subscriptions
  2. Use AWS Organizations backup policies with verified account opt-in, vaults and access controls
  3. Adopt an Aurora Global Database topology where supported and rehearse cross-Region failover or switchover
  4. Configure the applicable AWS Organizations delegated administrator in a dedicated security account
  5. Consider DynamoDB global tables with application-safe conflict semantics and tested replication behavior

Explanation

Correct Answers

D:

This action meets the independently stated requirement B: An organization needs a central security team to administer Inspector or GuardDuty for member accounts without using the management account daily. Service-specific delegated administration provides controlled cross-account security operations. A direct acceptance check is: The delegated administrator can manage enrolled member security coverage within its supported scope.

E:

This action meets the independently stated requirement A: Globally dispersed users require low-latency local writes to the same DynamoDB dataset with multi-Region availability. Global tables provide multi-Region replication with eventual cross-Region convergence semantics. A direct acceptance check is: Writes in either Region replicate to the other and conflict handling matches the business design.

Incorrect Answers

A:

This action targets a different technical need: Variable monthly expenses must trigger alerts for unusual spending spikes without predefined per-service thresholds. It does not replace either required solution in A or B. Cost Anomaly Detection learns spending patterns and flags unusual expenditures; verify the two stated requirements independently rather than accepting an unrelated change.

B:

This action targets a different technical need: Critical backups must be scheduled consistently across many application accounts and retained by policy. It does not replace either required solution in A or B. Organization backup policies support common baseline definitions but still require functioning target configuration; verify the two stated requirements independently rather than accepting an unrelated change.

C:

This action targets a different technical need: A customer database needs a near-real-time cross-Region read replica and an established disaster recovery promotion procedure. It does not replace either required solution in A or B. Aurora Global Database supports low-latency crossregional replication with explicit recovery operations; verify the two stated requirements independently rather than accepting an unrelated change.

Question 309

A professional architect is reviewing two independent workstreams. Requirement A: A reporting dashboard overloads a relational database primary with read queries but still requires strongly controlled write ownership. Requirement B: A steady service has predictable cross-family compute usage and seeks discounts without binding to one EC2 instance family. Which TWO responses resolve the stated issues without substituting unrelated mechanisms?

  1. Evaluate Compute Savings Plans at a supported commitment level for the stable baseline
  2. Use ElastiCache Redis/Valkey-compatible cache with a suitable eviction and high-availability design
  3. Add supported RDS read replicas and route eventually consistent reporting reads away from the writer
  4. Configure a suitable RDS cross-Region read replica where supported and rehearse replica promotion and endpoint changes
  5. Evaluate a serverless API Gateway and Lambda architecture with cold-start and concurrency testing

Explanation

Correct Answers

A:

This action meets the independently stated requirement B: A steady service has predictable cross-family compute usage and seeks discounts without binding to one EC2 instance family. Compute Savings Plans discount eligible compute spending with an hourly commitment. A direct acceptance check is: Actual eligible usage receives commitment coverage while variable spikes remain flexible.

C:

This action meets the independently stated requirement A: A reporting dashboard overloads a relational database primary with read queries but still requires strongly controlled write ownership. RDS read replicas scale read throughput but are asynchronous relative to the primary. A direct acceptance check is: Writer CPU usage decreases while lag-tolerant reporting requests use replica endpoints.

Incorrect Answers

B:

This action targets a different technical need: A high-throughput session API must share ephemeral session data among multiple application instances without database round trips. It does not replace either required solution in A or B. A shared in-memory cache reduces backend read pressure when expiry and failure behavior are designed; verify the two stated requirements independently rather than accepting an unrelated change.

D:

This action targets a different technical need: A read-heavy reporting application needs an up-to-date secondary regional database copy that can be promoted in a disaster. It does not replace either required solution in A or B. Cross-Region read replicas are asynchronous and may require explicit promotion in recovery; verify the two stated requirements independently rather than accepting an unrelated change.

E:

This action targets a different technical need: A rarely used API experiences extreme idle hours and unpredictable spikes, making always-on EC2 capacity uneconomic. It does not replace either required solution in A or B. Serverless consumption models can reduce idle infrastructure charges for intermittent traffic; verify the two stated requirements independently rather than accepting an unrelated change.

Question 310

An architecture review recommends this solution: Configure a Config aggregator with organization or account sources and appropriate delegated read access. The motivating situation is: Governance wants one AWS Config compliance view from many accounts and Regions. Which architectural reasoning is most accurate for the choice?

  1. An organization trail and protected storage form a centralized account-wide auditing design
  2. AWS Private CA supports private certificate authorities for internal certificate issuance
  3. Organizational units help assign governance boundaries to related member accounts
  4. AWS Config aggregators consolidate configuration and compliance data without changing source resources

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Configure a Config aggregator with organization or account sources and appropriate delegated read access. The expected supporting evidence is: Central compliance dashboards include resource findings from configured participating accounts and Regions.

Incorrect Answers

A:

Local activity trails are not consolidated into the audit security boundary. The stated evidence instead indicates: Local Config assessments exist but no aggregation exposes cross-account status.

B:

Public ACM-issued certificates were wrongly assumed to provide a corporate private CA chain. The stated evidence instead indicates: Local Config assessments exist but no aggregation exposes cross-account status.

C:

All accounts share one indiscriminate service-control policy despite different risk profiles. The stated evidence instead indicates: Local Config assessments exist but no aggregation exposes cross-account status.