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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 55

Question 540

An architecture review recommends this solution: Evaluate on-demand capacity or auto scaling where appropriate and check hot partition keys. The motivating situation is: A DynamoDB table receives unpredictable read request bursts causing throttling during seasonal peaks. Which principle would a reviewer use to defend this design?

  1. Placement and traffic pattern matter to data transfer costs as much as raw compute prices
  2. Enhanced networking capabilities require compatible instance types and operating-system drivers
  3. CloudFront Origin Shield can consolidate cache misses through an additional regional layer
  4. DynamoDB throughput requires sufficient mode capacity and key-distribution design

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Evaluate on-demand capacity or auto scaling where appropriate and check hot partition keys. The expected supporting evidence is: Burst replay avoids throttling while partition-level demand remains within supported constraints.

Incorrect Answers

A:

Workload service calls repeatedly cross paid network boundaries without quantified need. The stated evidence instead indicates: Capacity planning ignores demand spikes or hot keys that concentrate requests.

B:

Unsupported drivers or unsuitable instance networking features cap throughput. The stated evidence instead indicates: Capacity planning ignores demand spikes or hot keys that concentrate requests.

C:

Misses from different edge caches repeatedly burden the same origin. The stated evidence instead indicates: Capacity planning ignores demand spikes or hot keys that concentrate requests.

Question 541

For the enterprise requirement "A Kinesis stream has adequate shard write capacity but multiple consumers compete for read throughput and fall behind", the team implemented this change: Use enhanced fan-out for supported registered consumers or otherwise allocate read capacity explicitly. Which observation should be required before the change is approved?

  1. Origin request count drops under a multi-edge cache miss test while freshness remains correct
  2. Each registered consumer receives an independent read-throughput path and lag falls during peak events
  3. Eligible baseline compute spend receives discounts without excessive underused commitment
  4. Cold-start spikes fall for provisioned requests and concurrency utilization stays within budget

Explanation

Correct Answer

B:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Kinesis enhanced fan-out provides dedicated consumer read throughput within service limits. The acceptance condition is linked directly to the scenario: A Kinesis stream has adequate shard write capacity but multiple consumers compete for read throughput and fall behind.

Incorrect Answers

A:

Origin request count drops under a multi-edge cache miss test while freshness remains correct. However, this does not establish the required outcome: each registered consumer receives an independent read-throughput path and lag falls during peak events.

C:

Eligible baseline compute spend receives discounts without excessive underused commitment. However, this does not establish the required outcome: each registered consumer receives an independent read-throughput path and lag falls during peak events.

D:

Cold-start spikes fall for provisioned requests and concurrency utilization stays within budget. However, this does not establish the required outcome: each registered consumer receives an independent read-throughput path and lag falls during peak events.

Question 542

A deployed environment still does not meet the original requirement: Cloud infrastructure is built manually for each test environment and nobody knows which resources can be reproduced. Which underlying cause should be investigated first?

  1. A one-time export leaves days of writes uncopied before final deployment
  2. Console changes have no reproducible declarative infrastructure state
  3. Database engine migration was assumed to be a simple homogeneous replication job
  4. Shared data and internal method calls prevent independent deployment and scale

Explanation

Correct Answer

B:

This is the technical design error aligned with the unmet requirement. Infrastructure as code supports repeatability, reviews and automated lifecycle controls. The appropriate correction is: Capture resources in versioned CloudFormation or CDK definitions and deploy through reviewed pipelines. The control should then be tested by verifying that A fresh environment can be recreated from code with predictable parameters and drift checks.

Incorrect Answers

A:

A one-time export leaves days of writes uncopied before final deployment. The stated evidence instead indicates: Console changes have no reproducible declarative infrastructure state.

C:

Database engine migration was assumed to be a simple homogeneous replication job. The stated evidence instead indicates: Console changes have no reproducible declarative infrastructure state.

D:

Shared data and internal method calls prevent independent deployment and scale. The stated evidence instead indicates: Console changes have no reproducible declarative infrastructure state.

Question 543

A professional architect is reviewing two independent workstreams. Requirement A: A central networking account must share an existing Transit Gateway with application accounts without duplicating it. Requirement B: Finance needs engineering costs apportioned by team using tags rather than guessed from account totals. Which TWO responses resolve the stated issues without substituting unrelated mechanisms?

  1. Require tightly scoped role trust and a scoped session policy or condition that limits the assumed-role credentials
  2. Use organization-wide CloudTrail and central log storage with restrictive bucket access and retention controls
  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
  5. Use S3 Storage Lens metrics to identify expensive bucket-level and organization-wide storage trends

Explanation

Correct Answers

C:

This action meets the independently stated requirement A: A central networking account must share an existing Transit Gateway with application accounts without duplicating it. AWS RAM can share supported resources while ownership remains in a central account. A direct acceptance check is: Approved application accounts can create authorized attachments to the centrally owned gateway.

D:

This action meets the independently stated requirement B: Finance needs engineering costs apportioned by team using tags rather than guessed from account totals. Cost allocation tags must be activated before they appear in billing cost analytics. A direct acceptance check is: Cost and Usage Reports or Cost Explorer show tagged team spend after activation and reporting delay.

Incorrect Answers

A:

This action targets a different technical need: A vendor assumes a role into an AWS account and must be restricted to one project's S3 prefix for that session only. It does not replace either required solution in A or B. Session policies intersect with role permissions and can reduce privileges for one temporary session; verify the two stated requirements independently rather than accepting an unrelated change.

B:

This action targets a different technical need: A central audit account needs immutable delivery of logs from all workload accounts and Regions. It does not replace either required solution in A or B. An organization trail and protected storage form a centralized account-wide auditing design; verify the two stated requirements independently rather than accepting an unrelated change.

E:

This action targets a different technical need: A large S3 estate has unknown replication, storage-class, and lifecycle patterns that drive storage expense. It does not replace either required solution in A or B. S3 Storage Lens supports visibility into storage activity and efficiency metrics; verify the two stated requirements independently rather than accepting an unrelated change.

Question 544

An architecture review recommends this solution: Introduce a blue-green deployment strategy with health alarms and traffic rollback. The motivating situation is: A production deployment causes an outage because all old tasks were removed before new code passed tests. Which principle would a reviewer use to defend this design?

  1. Blue-green promotion protects a known-good environment until replacement quality is established
  2. DNS failover needs a health-signal and routing policy that actually switches answers
  3. Readiness and graceful termination controls reduce errors during normal rolling changes
  4. Controlled automation separates approval from execution and preserves traceability

Explanation

Correct Answer

A:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Introduce a blue-green deployment strategy with health alarms and traffic rollback. The expected supporting evidence is: New instances become healthy before major traffic shift and rollback restores the previous code path.

Incorrect Answers

B:

Passive regional copies exist without health-driven endpoint selection. The stated evidence instead indicates: In-place mass deployment removed rollback capacity before verifying the new version.

C:

Kubernetes deployment treats process startup as adequate evidence of request readiness. The stated evidence instead indicates: In-place mass deployment removed rollback capacity before verifying the new version.

D:

Administrators run sensitive maintenance scripts with no enforced approval or trail. The stated evidence instead indicates: In-place mass deployment removed rollback capacity before verifying the new version.

Question 545

For the enterprise requirement "An order-processing system uses synchronous downstream calls and fails completely whenever one notification provider is slow", the team implemented this change: Redesign notifications into event-driven processing using EventBridge or SQS with idempotent consumers. Which outcome is the most meaningful acceptance test?

  1. Existing clients publish and consume messages with acceptable protocol compatibility after controlled cutover
  2. Local clients retain supported file access while selected data is persisted to eligible AWS storage
  3. Orders complete independently of notification delays, while consumers process retries and duplicate deliveries safely
  4. Destination table state stays synchronized and the application passes a reversible cutover test

Explanation

Correct Answer

C:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Event-driven boundaries isolate failure but require idempotency and message-delivery governance. The acceptance condition is linked directly to the scenario: An order-processing system uses synchronous downstream calls and fails completely whenever one notification provider is slow.

Incorrect Answers

A:

Existing clients publish and consume messages with acceptable protocol compatibility after controlled cutover. However, this does not establish the required outcome: orders complete independently of notification delays, while consumers process retries and duplicate deliveries safely.

B:

Local clients retain supported file access while selected data is persisted to eligible AWS storage. However, this does not establish the required outcome: orders complete independently of notification delays, while consumers process retries and duplicate deliveries safely.

D:

Destination table state stays synchronized and the application passes a reversible cutover test. However, this does not establish the required outcome: orders complete independently of notification delays, while consumers process retries and duplicate deliveries safely.

Question 546

A professional architect is reviewing two independent workstreams. Requirement A: A headquarters requires a resilient private link to workloads in two Regions and must avoid routing all traffic over the public internet. Requirement B: A multi-account organization must prevent member accounts from disabling mandatory CloudTrail trails even when local administrators hold broad IAM policies. Which TWO recommendations jointly satisfy requirements A and B?

  1. Apply a targeted Organizations service control policy denying prohibited CloudTrail disablement actions in affected OUs
  2. Analyze commitments then purchase an appropriate Compute Savings Plan based on supported usage coverage
  3. Configure redundant site-to-site VPN tunnels as the tested backup to the Direct Connect path
  4. Configure Security Hub delegated administrator and member account aggregation or finding aggregation as supported
  5. Provision redundant Direct Connect connections and a Direct Connect gateway associated with appropriate transit or virtual private gateways

Explanation

Correct Answers

A:

This action meets the independently stated requirement B: A multi-account organization must prevent member accounts from disabling mandatory CloudTrail trails even when local administrators hold broad IAM policies. Service control policies set permission ceilings for member account principals and cannot grant access themselves. A direct acceptance check is: An administrator's disable request is denied while an authorized central management path remains available.

E:

This action meets the independently stated requirement A: A headquarters requires a resilient private link to workloads in two Regions and must avoid routing all traffic over the public internet. Independent Direct Connect circuits and correctly associated gateways improve hybrid-path resiliency. A direct acceptance check is: Both circuits carry permitted private routes, and a deliberate single-circuit outage retains connectivity.

Incorrect Answers

B:

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.

C:

This action targets a different technical need: A company uses Direct Connect for normal hybrid traffic but needs encrypted emergency connectivity if carrier circuits fail. It does not replace either required solution in A or B. A tested secondary encrypted tunnel path can carry critical traffic while primary private connectivity is unavailable; verify the two stated requirements independently rather than accepting an unrelated change.

D:

This action targets a different technical need: Security analysts need one cross-account aggregation view of prioritized findings without requesting console access in every workload account. It does not replace either required solution in A or B. Security Hub delegated administration centralizes findings while each source account retains its own resources; verify the two stated requirements independently rather than accepting an unrelated change.

Question 547

An enterprise architecture team faces this design requirement: A legacy application has a few-hour RTO but cannot justify running the complete secondary stack continuously. Which proposed change addresses the stated constraint most directly?

  1. Benchmark supported arm64 builds on Graviton instance families and deploy only after compatibility validation
  2. Configure S3 replication rules with correct versioning and KMS permissions for destination encrypted objects
  3. Configure Route 53 health checks with primary and secondary failover records and tested TTL behavior
  4. Maintain a pilot-light copy of the essential data and core services and automate remaining capacity restoration

Explanation

Correct Answer

D:

Pilot light retains critical replicated services while reconstructing additional capacity during recovery. The required architecture outcome is: A legacy application has a few-hour RTO but cannot justify running the complete secondary stack continuously. Validate this choice by checking that A drill scales the secondary stack from its minimal footprint within the agreed RTO.

Incorrect Answers

A:

The team assumes an x86 machine image and native binaries can run unchanged on arm64. The specific problem here is that every component must be rebuilt from scratch after failure, despite a tighter RTO.

B:

The destination bucket is present but replication cannot use the destination KMS key. The specific problem here is that every component must be rebuilt from scratch after failure, despite a tighter RTO.

C:

Records use ordinary simple routing without failover health awareness. The specific problem here is that every component must be rebuilt from scratch after failure, despite a tighter RTO.

Question 548

A deployed environment still does not meet the original requirement: A platform team deploys the same baseline IAM roles and configuration stacks into 70 governed member accounts. What original architectural gap most directly explains the failure?

  1. Each team independently patches hand-built machine images without reproducible validation
  2. Individual account stacks were created manually and drift from the approved baseline
  3. The disaster-recovery Region has no local image copy and the deployment assumes remote registry availability
  4. Service API traffic depends on public egress or an unintended NAT route despite a private-access requirement

Explanation

Correct Answer

B:

This is the technical design error aligned with the unmet requirement. CloudFormation StackSets manages stack instances across accounts and Regions from a controlled template. The appropriate correction is: Use CloudFormation StackSets with the appropriate organization deployment permissions and guarded account or OU targeting. The control should then be tested by verifying that A newly added target account receives the intended stack instances while an excluded OU does not.

Incorrect Answers

A:

Each team independently patches hand-built machine images without reproducible validation. The stated evidence instead indicates: Individual account stacks were created manually and drift from the approved baseline.

C:

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

D:

Service API traffic depends on public egress or an unintended NAT route despite a private-access requirement. The stated evidence instead indicates: Individual account stacks were created manually and drift from the approved baseline.

Question 549

A deployed environment still does not meet the original requirement: A global enterprise wants a portfolio-level view of application migrations, owners, blockers and cutover states. Which underlying cause should be investigated first?

  1. All assets are scheduled for direct rehost even when some are obsolete or unsuitable
  2. Database engine migration was assumed to be a simple homogeneous replication job
  3. Homegrown scripts do not handle incremental transfer, scheduling and verification consistently
  4. Migration tasks are tracked in separate team documents with no common portfolio state

Explanation

Correct Answer

D:

This is the technical design error aligned with the unmet requirement. A centralized migration tracking layer supports coordination across application teams. The appropriate correction is: Track AWS Transform migration wave and server states, and maintain centrally owned application milestones, blockers and cutover decisions. The control should then be tested by verifying that Owners can trace migration milestones and blockers for each workload without conflicting local spreadsheets.

Incorrect Answers

A:

All assets are scheduled for direct rehost even when some are obsolete or unsuitable. The stated evidence instead indicates: Migration tasks are tracked in separate team documents with no common portfolio state.

B:

Database engine migration was assumed to be a simple homogeneous replication job. The stated evidence instead indicates: Migration tasks are tracked in separate team documents with no common portfolio state.

C:

Homegrown scripts do not handle incremental transfer, scheduling and verification consistently. The stated evidence instead indicates: Migration tasks are tracked in separate team documents with no common portfolio state.

Question 550

An enterprise architecture team faces this design requirement: A DynamoDB application requires recovery from accidental writes to an earlier point within a month. Which proposed change addresses the stated constraint most directly?

  1. Configure readiness probes, deployment surge policy and graceful termination semantics
  2. Enable and test DynamoDB point-in-time recovery for the table and recovery runbook
  3. Integrate AWS Health organizational events with EventBridge alerts and owner routing
  4. Run controlled AWS Fault Injection Service scenarios with safety guardrails and predeclared stop conditions

Explanation

Correct Answer

B:

DynamoDB PITR restores to a selected point within its available recovery window. The required architecture outcome is: A DynamoDB application requires recovery from accidental writes to an earlier point within a month. Validate this choice by checking that Restoring a suitable past timestamp creates a usable table with correct records.

Incorrect Answers

A:

Kubernetes deployment treats process startup as adequate evidence of request readiness. The specific problem here is that standard short-lived backups cannot recover the exact chosen accidental-update point.

C:

Service-specific Health notifications are not routed into incident processes. The specific problem here is that standard short-lived backups cannot recover the exact chosen accidental-update point.

D:

Availability claims rest only on architecture diagrams, not controlled chaos evidence. The specific problem here is that standard short-lived backups cannot recover the exact chosen accidental-update point.