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Amazon AWS Certified Solutions Architect - Professional SAP-C02 Bundle

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

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Amazon AWS Certified Solutions Architect - Professional SAP-C02 Practice Test 36

Question 350

An architecture review recommends this solution: Evaluate EFS throughput and performance modes and provision an appropriate supported throughput setting. The motivating situation is: A shared EFS file system slows a data-processing batch even though compute workers are mostly idle. Why does this approach fit the stated design constraints?

  1. RDS read replicas scale read throughput but are asynchronous relative to the primary
  2. Pilot light retains critical replicated services while reconstructing additional capacity during recovery
  3. Kinesis stream performance depends on provisioned or on-demand capacity and balanced partition keys
  4. EFS throughput characteristics must match concurrent IO patterns and required sustained rate

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Evaluate EFS throughput and performance modes and provision an appropriate supported throughput setting. The expected supporting evidence is: File-system throughput reaches target under representative concurrent processing without exhausted credits.

Incorrect Answers

A:

Read-only analytical traffic saturates the production database's single writable instance. The stated evidence instead indicates: The shared file system's throughput mode or credit availability constrains parallel clients.

B:

Every component must be rebuilt from scratch after failure, despite a tighter RTO. The stated evidence instead indicates: The shared file system's throughput mode or credit availability constrains parallel clients.

C:

Stream shard limits or skewed partition keys cannot handle incoming record throughput. The stated evidence instead indicates: The shared file system's throughput mode or credit availability constrains parallel clients.

Question 351

An enterprise architecture team faces this design requirement: A revenue-critical public endpoint requires proactive DDoS response coordination and protected eligible application resources. Which option best aligns with the business and technical requirement?

  1. Deploy AWS Network Firewall with correct subnet endpoint routing and stateful rule groups
  2. Update the KMS key policy or grants alongside the principal's IAM permissions as required
  3. Run service tasks across multiple AZs with compatible load balancing and spare or scaling capacity
  4. Evaluate AWS Shield Advanced with supported resource protection and runbooks alongside layered edge controls

Explanation

Correct Answer

D:

Shield Advanced adds advanced DDoS protection and response support for supported resources. The required architecture outcome is: A revenue-critical public endpoint requires proactive DDoS response coordination and protected eligible application resources. Validate this choice by checking that A test incident follows predefined escalation and eligible protected resources appear under Shield Advanced coverage.

Incorrect Answers

A:

Traffic bypasses inspection endpoints, so rules exist but are never reached. The specific problem here is that basic infrastructure availability controls were mistaken for managed advanced DDoS response workflow.

B:

IAM principal permission was mistaken for sufficient access despite a restrictive KMS key policy. The specific problem here is that basic infrastructure availability controls were mistaken for managed advanced DDoS response workflow.

C:

All containers share a single placement failure domain and cannot be rescheduled in time. The specific problem here is that basic infrastructure availability controls were mistaken for managed advanced DDoS response workflow.

Question 352

A deployed environment still does not meet the original requirement: Customer-uploaded S3 objects must appear in a second Region for durability and region-isolation objectives. Which root cause is most consistent with the observation?

  1. Ordinary regional endpoints offer neither the requested global anycast entry point nor accelerator health steering
  2. All service replicas were scheduled in one zone despite multi-AZ infrastructure
  3. Every backup copy resides in the same administration boundary as the threatened workloads
  4. Only source-region S3 versioning is enabled, but no replication rule or role exists

Explanation

Correct Answer

D:

This is the technical design error aligned with the unmet requirement. Cross-Region Replication asynchronously copies eligible objects between configured buckets. The appropriate correction is: Enable S3 Cross-Region Replication with correct versioning, role permissions and ownership controls. The control should then be tested by verifying that Newly created and eligible changed objects arrive in the destination bucket with expected encryption.

Incorrect Answers

A:

Ordinary regional endpoints offer neither the requested global anycast entry point nor accelerator health steering. The stated evidence instead indicates: Only source-region S3 versioning is enabled, but no replication rule or role exists.

B:

All service replicas were scheduled in one zone despite multi-AZ infrastructure. The stated evidence instead indicates: Only source-region S3 versioning is enabled, but no replication rule or role exists.

C:

Every backup copy resides in the same administration boundary as the threatened workloads. The stated evidence instead indicates: Only source-region S3 versioning is enabled, but no replication rule or role exists.

Question 353

An architecture review recommends this solution: Use EC2 Spot capacity with checkpointing and interruption-aware retry mechanisms. The motivating situation is: Large fault-tolerant batch analytics jobs can be interrupted and resumed while the team pays full on-demand prices. Which consideration makes this solution preferable to the original approach?

  1. Compute Savings Plans discount eligible compute spending with an hourly commitment
  2. Spot Instances optimize interruptible capacity costs when jobs tolerate reclaim events
  3. Serverless consumption models can reduce idle infrastructure charges for intermittent traffic
  4. CloudFront OAC signs origin requests and supports restrictive private S3 bucket policies

Explanation

Correct Answer

B:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Use EC2 Spot capacity with checkpointing and interruption-aware retry mechanisms. The expected supporting evidence is: A simulated interruption causes bounded rework and lowers total compute cost without losing final results.

Incorrect Answers

A:

Stable compute baseline is paid at on-demand rates without analyzed commitments. The stated evidence instead indicates: The workload uses only on-demand capacity despite safe restart or checkpoint semantics.

C:

Fixed EC2 capacity is provisioned 24/7 despite infrequent invocation. The stated evidence instead indicates: The workload uses only on-demand capacity despite safe restart or checkpoint semantics.

D:

A public bucket policy exposes origin objects outside the intended CloudFront access path. The stated evidence instead indicates: The workload uses only on-demand capacity despite safe restart or checkpoint semantics.

Question 354

An enterprise architecture team faces this design requirement: A shared S3 data lake gives two analytics teams unnecessarily broad bucket access. What design change should the team implement?

  1. Configure organization-wide GuardDuty administration with supported automatic enrollment and region strategy
  2. Use S3 Access Points or carefully scoped bucket policies to isolate each team's required object prefixes
  3. Define service level indicators and targets in CloudWatch dashboards and alarms grounded in request success and p95 latency
  4. Add AWS Config evaluation for the risky security-group condition with controlled notification and remediation

Explanation

Correct Answer

B:

S3 Access Points can support distinct access policies for shared buckets. The required architecture outcome is: A shared S3 data lake gives two analytics teams unnecessarily broad bucket access. Validate this choice by checking that Team A reads only its permitted dataset and an attempt to fetch team B's restricted dataset is rejected.

Incorrect Answers

A:

Threat detection remains inconsistently deployed across member accounts and Regions. The specific problem here is that one overbroad bucket-level policy grants both teams access to all data.

C:

Engineers measure host utilization but not the outcomes experienced by users. The specific problem here is that one overbroad bucket-level policy grants both teams access to all data.

D:

Static security policy documents are not technically enforced against resource drift. The specific problem here is that one overbroad bucket-level policy grants both teams access to all data.

Question 355

An architecture review recommends this solution: Use staged schema compatibility, full-load plus CDC migration and controlled dual-environment cutover tests. The motivating situation is: A business must migrate production database tables while serving users until the final narrow cutover. Which principle would a reviewer use to defend this design?

  1. Managed workflow orchestration makes retries, errors and compensation explicit
  2. The 7 Rs decision framework matches migration strategy to application context
  3. Domain-aligned service boundaries require APIs and deliberate data ownership separation
  4. Online database migration requires ongoing change capture and carefully managed cutover semantics

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Use staged schema compatibility, full-load plus CDC migration and controlled dual-environment cutover tests. The expected supporting evidence is: Source and destination data reconcile, CDC lag reaches the target and switching endpoints remains reversible.

Incorrect Answers

A:

Workflow state and failure recovery are hidden in fragile custom imperative scripts. The stated evidence instead indicates: A one-time export leaves days of writes uncopied before final deployment.

B:

All assets are scheduled for direct rehost even when some are obsolete or unsuitable. The stated evidence instead indicates: A one-time export leaves days of writes uncopied before final deployment.

C:

Shared data and internal method calls prevent independent deployment and scale. The stated evidence instead indicates: A one-time export leaves days of writes uncopied before final deployment.

Question 356

For the enterprise requirement "A brittle order-processing script has nested retries and no durable checkpoint between separate workflow steps", the team implemented this change: Move the suitable multi-step orchestration into Step Functions with named states, bounded retries and error paths. Which observation should be required before the change is approved?

  1. A retry resumes the failed state without independently rerunning successful steps and errors are visible in execution history
  2. Chosen sizes meet memory and peak latency needs while reducing wasteful instance spending
  3. An incident view identifies the affected service and response latency rather than just total fleet CPU
  4. Release decisions reference tracked error rate and latency burn rather than raw instance uptime alone

Explanation

Correct Answer

A:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. State machines improve auditability when state transitions and idempotency are designed. The acceptance condition is linked directly to the scenario: A brittle order-processing script has nested retries and no durable checkpoint between separate workflow steps.

Incorrect Answers

B:

Chosen sizes meet memory and peak latency needs while reducing wasteful instance spending. However, this does not establish the required outcome: a retry resumes the failed state without independently rerunning successful steps and errors are visible in execution history.

C:

An incident view identifies the affected service and response latency rather than just total fleet CPU. However, this does not establish the required outcome: a retry resumes the failed state without independently rerunning successful steps and errors are visible in execution history.

D:

Release decisions reference tracked error rate and latency burn rather than raw instance uptime alone. However, this does not establish the required outcome: a retry resumes the failed state without independently rerunning successful steps and errors are visible in execution history.

Question 357

An enterprise architecture team faces this design requirement: Compliance requires a formal rotation process for customer-managed KMS keys without breaking historical ciphertext. Which architecture decision best meets that precise requirement?

  1. Configure supported KMS key rotation policy and validate old ciphertext decrypt behavior under the same logical key
  2. Move the suitable multi-step orchestration into Step Functions with named states, bounded retries and error paths
  3. Add AWS Config evaluation for the risky security-group condition with controlled notification and remediation
  4. Aggregate CloudTrail management events with appropriately protected central storage and searchable event records

Explanation

Correct Answer

A:

KMS key rotation retains ability to decrypt data encrypted with earlier key material. The required architecture outcome is: Compliance requires a formal rotation process for customer-managed KMS keys without breaking historical ciphertext. Validate this choice by checking that New cryptographic material is used when rotation occurs while previously encrypted data remains decryptable.

Incorrect Answers

B:

Untracked imperative orchestration repeats previous side effects after transient failures. The specific problem here is that teams confuse key material rotation with replacing the KMS key ID and losing access to old data.

C:

Static security policy documents are not technically enforced against resource drift. The specific problem here is that teams confuse key material rotation with replacing the KMS key ID and losing access to old data.

D:

CloudTrail management events are not retained or centrally available for review. The specific problem here is that teams confuse key material rotation with replacing the KMS key ID and losing access to old data.

Question 358

A professional architect is reviewing two independent workstreams. Requirement A: A high-traffic EC2 service must release a risky version while keeping a rapid rollback path and without terminating all healthy targets at once. Requirement B: A noncritical archive service has a 24-hour RTO and may restore its configuration and data from protected backups. Which TWO recommendations jointly satisfy requirements A and B?

  1. Use CodeDeploy blue-green deployment with alternate load balancer target groups and rollback alarms
  2. Add AWS WAF rate-based rules scoped to the API's web ACL with suitable action and monitoring
  3. Use an appropriately designed active-active multi-Region architecture with global routing and compatible data replication
  4. Use EC2 Image Builder pipelines for controlled image build, testing and account or Region distribution
  5. Implement a tested backup-and-restore disaster recovery pattern with documented recovery runbooks

Explanation

Correct Answers

A:

This action meets the independently stated requirement A: A high-traffic EC2 service must release a risky version while keeping a rapid rollback path and without terminating all healthy targets at once. Blue-green deployment separates old and new environments to support safe traffic shifting. A direct acceptance check is: Requests switch to the replacement environment only after health tests pass, and rollback returns traffic to old targets.

E:

This action meets the independently stated requirement B: A noncritical archive service has a 24-hour RTO and may restore its configuration and data from protected backups. Backup-and-restore DR suits longer RTO targets when restore execution is practiced. A direct acceptance check is: A restore drill meets the 24-hour recovery target with verified data integrity and access.

Incorrect Answers

B:

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.

C:

This action targets a different technical need: A worldwide public application targets near-zero regional failover time and already tolerates multi-Region data conflict semantics. It does not replace either required solution in A or B. Active-active architectures provide immediate regional capacity but require safe multi-Region data behavior; verify the two stated requirements independently rather than accepting an unrelated change.

D:

This action targets a different technical need: An operations team must roll out the same hardened EC2 AMI to many accounts with recorded patch and test history. It does not replace either required solution in A or B. EC2 Image Builder automates reproducible image lifecycles with testing and distribution; verify the two stated requirements independently rather than accepting an unrelated change.

Question 359

For the enterprise requirement "Two acquired subsidiaries have overlapping RFC1918 VPC CIDRs but must exchange traffic with a shared integration endpoint", the team implemented this change: Introduce a centrally managed translation or proxy layer with nonoverlapping service endpoints rather than directly peering overlapping networks. Which result specifically demonstrates the fix works?

  1. Traffic uses translated unique endpoint addresses and return packets reach the original client correctly
  2. Eligible accounts create scheduled recovery points according to policies and restores are tested
  3. Both circuits carry permitted private routes, and a deliberate single-circuit outage retains connectivity
  4. Traffic crosses the regional peering attachment only for specifically installed and approved prefixes

Explanation

Correct Answer

A:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Overlapping address spaces require translation or service-level isolation rather than simple routed peering. The acceptance condition is linked directly to the scenario: Two acquired subsidiaries have overlapping RFC1918 VPC CIDRs but must exchange traffic with a shared integration endpoint.

Incorrect Answers

B:

Eligible accounts create scheduled recovery points according to policies and restores are tested. However, this does not establish the required outcome: traffic uses translated unique endpoint addresses and return packets reach the original client correctly.

C:

Both circuits carry permitted private routes, and a deliberate single-circuit outage retains connectivity. However, this does not establish the required outcome: traffic uses translated unique endpoint addresses and return packets reach the original client correctly.

D:

Traffic crosses the regional peering attachment only for specifically installed and approved prefixes. However, this does not establish the required outcome: traffic uses translated unique endpoint addresses and return packets reach the original client correctly.

Question 360

An enterprise architecture team faces this design requirement: Payment message consumers can fail repeatedly on one malformed message and must isolate it without blocking all valid messages. Which action would resolve the problem without adding unrelated capabilities?

  1. Configure SQS redrive policy with an appropriate dead-letter queue and maxReceiveCount
  2. Send eligible reads through the Aurora reader endpoint and provision suitable replica capacity
  3. Tune CloudFront cache policies and origin behavior to increase cache hits while honoring freshness limits
  4. Configure Route 53 failover routing with suitable health checks and a tested secondary target

Explanation

Correct Answer

A:

SQS dead-letter queues preserve failed messages for separate inspection and remediation. The required architecture outcome is: Payment message consumers can fail repeatedly on one malformed message and must isolate it without blocking all valid messages. Validate this choice by checking that A poison message goes to the DLQ after configured attempts while valid following messages proceed.

Incorrect Answers

B:

Every reporting query was sent to the cluster writer endpoint despite available readers. The specific problem here is that repeated retries of one failed message prevent useful error isolation and redrive workflow.

C:

The CDN forwards every request to origin due to ineffective cache keys or caching headers. The specific problem here is that repeated retries of one failed message prevent useful error isolation and redrive workflow.

D:

DNS simple routing cannot automatically reflect the application's health. The specific problem here is that repeated retries of one failed message prevent useful error isolation and redrive workflow.