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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 48

Question 470

An enterprise architecture team faces this design requirement: A large S3 estate has unknown replication, storage-class, and lifecycle patterns that drive storage expense. Which action would resolve the problem without adding unrelated capabilities?

  1. Use S3 Storage Lens metrics to identify expensive bucket-level and organization-wide storage trends
  2. Use AWS Cost Optimization Hub with supported account enrollment and recommendation aggregation
  3. Use distinct AWS Organizations organizational units and apply targeted service control policies per OU
  4. Analyze commitments then purchase an appropriate Compute Savings Plan based on supported usage coverage

Explanation

Correct Answer

A:

S3 Storage Lens supports visibility into storage activity and efficiency metrics. The required architecture outcome is: A large S3 estate has unknown replication, storage-class, and lifecycle patterns that drive storage expense. Validate this choice by checking that Dashboards identify targeted buckets with abnormal storage patterns and lifecycle candidates.

Incorrect Answers

B:

Savings recommendations exist in separate consoles and are double counted in spreadsheets. The specific problem here is that teams have only aggregate bills and cannot locate the source of inefficient storage usage.

C:

All accounts share one indiscriminate service-control policy despite different risk profiles. The specific problem here is that teams have only aggregate bills and cannot locate the source of inefficient storage usage.

D:

On-demand usage was left wholly uncommitted despite predictable baseline compute consumption. The specific problem here is that teams have only aggregate bills and cannot locate the source of inefficient storage usage.

Question 471

A deployed environment still does not meet the original requirement: A payment service must block production release if vulnerability and smoke-test gates fail, even though the build itself succeeded. What was most likely overlooked in the original design?

  1. Independent release scripts lack enforceable promotion ordering and approval evidence
  2. Every reporting query was sent to the cluster writer endpoint despite available readers
  3. Each team independently patches hand-built machine images without reproducible validation
  4. A successful compilation is treated as proof that the release is safe and functional

Explanation

Correct Answer

D:

This is the technical design error aligned with the unmet requirement. Release pipelines should verify deployment risk and acceptance criteria beyond build success. The appropriate correction is: Add pipeline quality gates and explicit approval conditions prior to production deployment. The control should then be tested by verifying that Failed security or smoke tests prevent production deployment while passing builds can be promoted.

Incorrect Answers

A:

Independent release scripts lack enforceable promotion ordering and approval evidence. The stated evidence instead indicates: A successful compilation is treated as proof that the release is safe and functional.

B:

Every reporting query was sent to the cluster writer endpoint despite available readers. The stated evidence instead indicates: A successful compilation is treated as proof that the release is safe and functional.

C:

Each team independently patches hand-built machine images without reproducible validation. The stated evidence instead indicates: A successful compilation is treated as proof that the release is safe and functional.

Question 472

An enterprise architecture team faces this design requirement: Workloads require a stateful firewall policy between centralized network segments, including domain-aware egress filtering. Which proposed change addresses the stated constraint most directly?

  1. Deploy AWS Network Firewall with correct subnet endpoint routing and stateful rule groups
  2. Configure IAM role federation with OIDC trust subject restrictions for the external build identity
  3. Update the KMS key policy or grants alongside the principal's IAM permissions as required
  4. Benchmark supported arm64 builds on Graviton instance families and deploy only after compatibility validation

Explanation

Correct Answer

A:

Network Firewall enforces stateful network rules only on traffic routed through its endpoints. The required architecture outcome is: Workloads require a stateful firewall policy between centralized network segments, including domain-aware egress filtering. Validate this choice by checking that Approved flows pass and test policy-violating flows are logged and blocked in both traffic directions.

Incorrect Answers

B:

Static IAM user access keys were embedded in the external CI configuration. The specific problem here is that traffic bypasses inspection endpoints, so rules exist but are never reached.

C:

IAM principal permission was mistaken for sufficient access despite a restrictive KMS key policy. The specific problem here is that traffic bypasses inspection endpoints, so rules exist but are never reached.

D:

The team assumes an x86 machine image and native binaries can run unchanged on arm64. The specific problem here is that traffic bypasses inspection endpoints, so rules exist but are never reached.

Question 473

A deployed environment still does not meet the original requirement: Enterprise billing shows a stable EC2 spend baseline but Savings Plans are not aligned with actual account usage. What explains why the stated requirement was not met?

  1. Passive regional copies exist without health-driven endpoint selection
  2. Capacity commitments are purchased solely from forecast without checking historical eligible use
  3. Shared costs are assigned by arbitrary percentage without service consumption evidence
  4. Instances remain oversized based only on purchase history rather than performance evidence

Explanation

Correct Answer

B:

This is the technical design error aligned with the unmet requirement. Savings Plan decisions require evidence about coverage and utilization of eligible compute. The appropriate correction is: Analyze Cost Explorer coverage and utilization before adjusting a suitable commitment. The control should then be tested by verifying that Eligible baseline compute spend receives discounts without excessive underused commitment.

Incorrect Answers

A:

Passive regional copies exist without health-driven endpoint selection. The stated evidence instead indicates: Capacity commitments are purchased solely from forecast without checking historical eligible use.

C:

Shared costs are assigned by arbitrary percentage without service consumption evidence. The stated evidence instead indicates: Capacity commitments are purchased solely from forecast without checking historical eligible use.

D:

Instances remain oversized based only on purchase history rather than performance evidence. The stated evidence instead indicates: Capacity commitments are purchased solely from forecast without checking historical eligible use.

Question 474

An architecture review recommends this solution: Enable GuardDuty organization-wide with designated administrator and configured regional coverage. The motivating situation is: A central security team needs automated detections for unusual cross-account API activity and suspected credential misuse. Why does this approach fit the stated design constraints?

  1. OIDC role federation supports temporary credentials and scoped trust for external workloads
  2. S3 encrypted object replication needs versioning and appropriate replication-role KMS authorization
  3. GuardDuty consumes AWS data sources to identify suspicious behavior and report findings
  4. VPC endpoints provide private connectivity to supported AWS services inside defined network and policy controls

Explanation

Correct Answer

C:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Enable GuardDuty organization-wide with designated administrator and configured regional coverage. The expected supporting evidence is: A seeded supported suspicious event generates a finding and the delegated administrator can triage it.

Incorrect Answers

A:

Static IAM user access keys were embedded in the external CI configuration. The stated evidence instead indicates: Raw CloudTrail logs were collected but no managed threat-detection findings were enabled.

B:

The destination bucket is present but replication cannot use the destination KMS key. The stated evidence instead indicates: Raw CloudTrail logs were collected but no managed threat-detection findings were enabled.

D:

Service API traffic depends on public egress or an unintended NAT route despite a private-access requirement. The stated evidence instead indicates: Raw CloudTrail logs were collected but no managed threat-detection findings were enabled.

Question 475

An enterprise architecture team faces this design requirement: Operations cannot trace a customer transaction once it crosses more than six loosely coupled services. Which architecture decision best meets that precise requirement?

  1. Introduce consistent tracing and structured correlation with CloudWatch and an OpenTelemetry-compatible collector where appropriate
  2. Classify sensitive datasets and map AWS Regions, key ownership and access controls before selecting migration waves
  3. Move the schedule to EventBridge Scheduler with an appropriately scoped Lambda or supported task target
  4. Introduce change data capture and an event stream or bus with replay and idempotent consumers

Explanation

Correct Answer

A:

Unified trace context and structured observability improve distributed troubleshooting. The required architecture outcome is: Operations cannot trace a customer transaction once it crosses more than six loosely coupled services. Validate this choice by checking that An end-to-end test request shows linked spans and reveals downstream latency without leaking credentials.

Incorrect Answers

B:

Migration scheduling ignored data classification and jurisdictional control requirements. The specific problem here is that separate component logs cannot be correlated to customer transactions.

C:

The only purpose of a 24/7 server is occasional timer-based work. The specific problem here is that separate component logs cannot be correlated to customer transactions.

D:

All consumers wait for a nightly export despite a near-real-time freshness requirement. The specific problem here is that separate component logs cannot be correlated to customer transactions.

Question 476

For the enterprise requirement "A public application must divert DNS traffic away from an endpoint when health checks show it has failed", the team implemented this change: Configure Route 53 failover routing with suitable health checks and a tested secondary target. What observed result would demonstrate successful delivery of the requested capability?

  1. The API meets latency SLOs under bursts and incurs low idle compute spend without permanently allocated hosts
  2. New DNS lookups return the secondary endpoint after a primary health check changes to unhealthy
  3. Events captured during the fault can be replayed to a corrected consumer after recovery
  4. A simulated transient error is retried according to policy and a persistent error follows a defined failure branch

Explanation

Correct Answer

B:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. DNS failover requires health-aware routing and realistic expectations for cached answers. The acceptance condition is linked directly to the scenario: A public application must divert DNS traffic away from an endpoint when health checks show it has failed.

Incorrect Answers

A:

The API meets latency SLOs under bursts and incurs low idle compute spend without permanently allocated hosts. However, this does not establish the required outcome: new DNS lookups return the secondary endpoint after a primary health check changes to unhealthy.

C:

Events captured during the fault can be replayed to a corrected consumer after recovery. However, this does not establish the required outcome: new DNS lookups return the secondary endpoint after a primary health check changes to unhealthy.

D:

A simulated transient error is retried according to policy and a persistent error follows a defined failure branch. However, this does not establish the required outcome: new DNS lookups return the secondary endpoint after a primary health check changes to unhealthy.

Question 477

For the enterprise requirement "Globally dispersed users require low-latency local writes to the same DynamoDB dataset with multi-Region availability", the team implemented this change: Consider DynamoDB global tables with application-safe conflict semantics and tested replication behavior. What would most directly validate the implementation?

  1. Backups remain recoverable from the dedicated account even when the application account is disabled
  2. Queries from on-premises resolvers return the expected private-zone records through inbound endpoint addresses
  3. Replica lag and promotion tests meet defined RPO and RTO targets during planned and simulated events
  4. Writes in either Region replicate to the other and conflict handling matches the business design

Explanation

Correct Answer

D:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Global tables provide multi-Region replication with eventual cross-Region convergence semantics. The acceptance condition is linked directly to the scenario: Globally dispersed users require low-latency local writes to the same DynamoDB dataset with multi-Region availability.

Incorrect Answers

A:

Backups remain recoverable from the dedicated account even when the application account is disabled. However, this does not establish the required outcome: writes in either Region replicate to the other and conflict handling matches the business design.

B:

Queries from on-premises resolvers return the expected private-zone records through inbound endpoint addresses. However, this does not establish the required outcome: writes in either Region replicate to the other and conflict handling matches the business design.

C:

Replica lag and promotion tests meet defined RPO and RTO targets during planned and simulated events. However, this does not establish the required outcome: writes in either Region replicate to the other and conflict handling matches the business design.

Question 478

A professional architect is reviewing two independent workstreams. Requirement A: Many workload VPCs need access to a privately published service without opening routing to the provider's whole VPC. Requirement B: Employees across dozens of AWS accounts must use one corporate identity provider and centrally standardized account assignments. Select TWO independent changes that meet the named requirements.

  1. Expose the provider through an endpoint service behind a Network Load Balancer and create consumer interface VPC endpoints
  2. Provision redundant Direct Connect connections and a Direct Connect gateway associated with appropriate transit or virtual private gateways
  3. Configure an organization trail delivered to a protected central S3 bucket with appropriate key and bucket controls
  4. Use Compute Optimizer and validate monitoring data before right-sizing eligible instances
  5. Configure IAM Identity Center with enterprise IdP integration, permission sets and controlled account assignments

Explanation

Correct Answers

A:

This action meets the independently stated requirement A: Many workload VPCs need access to a privately published service without opening routing to the provider's whole VPC. AWS PrivateLink exposes a selected service to consumers without full network-to-network reachability. A direct acceptance check is: Consumer instances reach only the approved PrivateLink service while unrelated provider subnets remain unreachable.

E:

This action meets the independently stated requirement B: Employees across dozens of AWS accounts must use one corporate identity provider and centrally standardized account assignments. IAM Identity Center coordinates workforce SSO permission sets across accounts. A direct acceptance check is: Employees sign in using enterprise identities and receive only the mapped roles in assigned accounts.

Incorrect Answers

B:

This action targets a different technical need: A headquarters requires a resilient private link to workloads in two Regions and must avoid routing all traffic over the public internet. It does not replace either required solution in A or B. Independent Direct Connect circuits and correctly associated gateways improve hybrid-path resiliency; verify the two stated requirements independently rather than accepting an unrelated change.

C:

This action targets a different technical need: Compliance requires protected organization-wide API activity logs to flow into a centralized security account with controlled deletion. It does not replace either required solution in A or B. AWS Organizations trails centralize multi-account CloudTrail logging when storage access is secured; verify the two stated requirements independently rather than accepting an unrelated change.

D:

This action targets a different technical need: Dozens of overprovisioned EC2 instances need evidence-based CPU and memory sizing recommendations before changing families. It does not replace either required solution in A or B. Compute Optimizer uses resource metrics and recommendations but must be checked against workload SLOs; verify the two stated requirements independently rather than accepting an unrelated change.

Question 479

For the enterprise requirement "A private S3 origin behind CloudFront must block direct public object requests while allowing authorized distribution reads", the team implemented this change: Configure CloudFront Origin Access Control with an origin bucket policy restricted to the distribution. Which result specifically demonstrates the fix works?

  1. NAT processed-byte charges for eligible S3 traffic fall while S3 requests still succeed under endpoint policy
  2. The authorized role decrypts the designated ciphertext while an unrelated role remains denied
  3. CloudFront retrieves approved objects while direct anonymous S3 URLs are rejected
  4. The abusive source crosses its request threshold and is blocked without blocking allowed sample traffic

Explanation

Correct Answer

C:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. CloudFront OAC signs origin requests and supports restrictive private S3 bucket policies. The acceptance condition is linked directly to the scenario: A private S3 origin behind CloudFront must block direct public object requests while allowing authorized distribution reads.

Incorrect Answers

A:

NAT processed-byte charges for eligible S3 traffic fall while S3 requests still succeed under endpoint policy. However, this does not establish the required outcome: cloudFront retrieves approved objects while direct anonymous S3 URLs are rejected.

B:

The authorized role decrypts the designated ciphertext while an unrelated role remains denied. However, this does not establish the required outcome: cloudFront retrieves approved objects while direct anonymous S3 URLs are rejected.

D:

The abusive source crosses its request threshold and is blocked without blocking allowed sample traffic. However, this does not establish the required outcome: cloudFront retrieves approved objects while direct anonymous S3 URLs are rejected.

Question 480

A deployed environment still does not meet the original requirement: Critical backups must be scheduled consistently across many application accounts and retained by policy. Which missing control accounts for the continuing issue?

  1. Separate VPC copies and peering links were created instead of sharing centrally governed subnets
  2. Static budgets cannot explain or detect each atypical spend pattern promptly
  3. Individual accounts use drifting custom schedules that do not match central backup policy
  4. Management-account-only operations were mistaken for necessary daily centralized security administration

Explanation

Correct Answer

C:

This is the technical design error aligned with the unmet requirement. Organization backup policies support common baseline definitions but still require functioning target configuration. The appropriate correction is: Use AWS Organizations backup policies with verified account opt-in, vaults and access controls. The control should then be tested by verifying that Eligible accounts create scheduled recovery points according to policies and restores are tested.

Incorrect Answers

A:

Separate VPC copies and peering links were created instead of sharing centrally governed subnets. The stated evidence instead indicates: Individual accounts use drifting custom schedules that do not match central backup policy.

B:

Static budgets cannot explain or detect each atypical spend pattern promptly. The stated evidence instead indicates: Individual accounts use drifting custom schedules that do not match central backup policy.

D:

Management-account-only operations were mistaken for necessary daily centralized security administration. The stated evidence instead indicates: Individual accounts use drifting custom schedules that do not match central backup policy.