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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 64

Question 630

For the enterprise requirement "Payment message consumers can fail repeatedly on one malformed message and must isolate it without blocking all valid messages", the team implemented this change: Configure SQS redrive policy with an appropriate dead-letter queue and maxReceiveCount. What should operations verify instead of relying on configuration alone?

  1. Events captured during the fault can be replayed to a corrected consumer after recovery
  2. A simulated transient error is retried according to policy and a persistent error follows a defined failure branch
  3. The API meets latency SLOs under bursts and incurs low idle compute spend without permanently allocated hosts
  4. A poison message goes to the DLQ after configured attempts while valid following messages proceed

Explanation

Correct Answer

D:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. SQS dead-letter queues preserve failed messages for separate inspection and remediation. The acceptance condition is linked directly to the scenario: Payment message consumers can fail repeatedly on one malformed message and must isolate it without blocking all valid messages.

Incorrect Answers

A:

Events captured during the fault can be replayed to a corrected consumer after recovery. However, this does not establish the required outcome: a poison message goes to the DLQ after configured attempts while valid following messages proceed.

B:

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: a poison message goes to the DLQ after configured attempts while valid following messages proceed.

C:

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: a poison message goes to the DLQ after configured attempts while valid following messages proceed.

Question 631

An enterprise architecture team faces this design requirement: A company uses Direct Connect for normal hybrid traffic but needs encrypted emergency connectivity if carrier circuits fail. Which proposed change addresses the stated constraint most directly?

  1. Use Transit Gateway inspection VPC attachment with appliance mode and explicit symmetric inspection routes
  2. Create an AWS Budget with defined threshold notification recipients and appropriate budget filters
  3. Configure redundant site-to-site VPN tunnels as the tested backup to the Direct Connect path
  4. Provision redundant Direct Connect connections and a Direct Connect gateway associated with appropriate transit or virtual private gateways

Explanation

Correct Answer

C:

A tested secondary encrypted tunnel path can carry critical traffic while primary private connectivity is unavailable. The required architecture outcome is: A company uses Direct Connect for normal hybrid traffic but needs encrypted emergency connectivity if carrier circuits fail. Validate this choice by checking that A simulated Direct Connect failure moves approved routes to VPN tunnels and restore reverses route preference.

Incorrect Answers

A:

The inspection design allows forward and return packets to use different stateful inspection appliances. The specific problem here is that there is no independently functioning VPN path when private connectivity goes down.

B:

The team relies exclusively on retrospective end-of-month billing statements. The specific problem here is that there is no independently functioning VPN path when private connectivity goes down.

D:

A single Direct Connect circuit creates a site-to-cloud connectivity single point of failure. The specific problem here is that there is no independently functioning VPN path when private connectivity goes down.

Question 632

For the enterprise requirement "Legal and nonproduction workloads require different organizational guardrails but must share central billing", the team implemented this change: Use distinct AWS Organizations organizational units and apply targeted service control policies per OU. What should operations verify instead of relying on configuration alone?

  1. Revoking a staff member's assignment removes their delegated access without per-account user deletion
  2. Traffic crosses the regional peering attachment only for specifically installed and approved prefixes
  3. Central compliance dashboards include resource findings from configured participating accounts and Regions
  4. Production account requests are governed by the intended production policy and sandbox accounts by their own boundaries

Explanation

Correct Answer

D:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Organizational units help assign governance boundaries to related member accounts. The acceptance condition is linked directly to the scenario: Legal and nonproduction workloads require different organizational guardrails but must share central billing.

Incorrect Answers

A:

Revoking a staff member's assignment removes their delegated access without per-account user deletion. However, this does not establish the required outcome: production account requests are governed by the intended production policy and sandbox accounts by their own boundaries.

B:

Traffic crosses the regional peering attachment only for specifically installed and approved prefixes. However, this does not establish the required outcome: production account requests are governed by the intended production policy and sandbox accounts by their own boundaries.

C:

Central compliance dashboards include resource findings from configured participating accounts and Regions. However, this does not establish the required outcome: production account requests are governed by the intended production policy and sandbox accounts by their own boundaries.

Question 633

An enterprise architecture team faces this design requirement: A business must migrate production database tables while serving users until the final narrow cutover. Which option best aligns with the business and technical requirement?

  1. Modernize to an appropriately configured Amazon Aurora cluster with multi-AZ storage and tested failover
  2. Introduce consistent tracing and structured correlation with CloudWatch and an OpenTelemetry-compatible collector where appropriate
  3. Apply the strangler pattern, routing one well-defined capability at a time to a tested new service
  4. Use staged schema compatibility, full-load plus CDC migration and controlled dual-environment cutover tests

Explanation

Correct Answer

D:

Online database migration requires ongoing change capture and carefully managed cutover semantics. The required architecture outcome is: A business must migrate production database tables while serving users until the final narrow cutover. Validate this choice by checking that Source and destination data reconcile, CDC lag reaches the target and switching endpoints remains reversible.

Incorrect Answers

A:

Application reliability still depends on one unmanaged database host and manual restores. The specific problem here is that a one-time export leaves days of writes uncopied before final deployment.

B:

Separate component logs cannot be correlated to customer transactions. The specific problem here is that a one-time export leaves days of writes uncopied before final deployment.

C:

An all-at-once replacement has unacceptable outage and rollback risk. The specific problem here is that a one-time export leaves days of writes uncopied before final deployment.

Question 634

An enterprise architecture team faces this design requirement: Executives request one default migration method for every workload regardless of technical debt or value. Which selection is defensible under the given constraints?

  1. Perform application dependency discovery and group connected workloads into migration waves
  2. Redesign notifications into event-driven processing using EventBridge or SQS with idempotent consumers
  3. Classify applications through a defined 7 Rs migration assessment with business value, risk and retirement criteria
  4. Assess license portability, dedicated-host requirements and AWS License Manager before choosing targets

Explanation

Correct Answer

C:

The 7 Rs decision framework matches migration strategy to application context. The required architecture outcome is: Executives request one default migration method for every workload regardless of technical debt or value. Validate this choice by checking that Each workload has justified retire, retain, relocate, rehost, replatform, repurchase or refactor decision.

Incorrect Answers

A:

Application lists omit runtime call dependencies and produce broken split-wave migrations. The specific problem here is that all assets are scheduled for direct rehost even when some are obsolete or unsuitable.

B:

Tight synchronous coupling propagates a noncritical downstream failure to the primary transaction. The specific problem here is that all assets are scheduled for direct rehost even when some are obsolete or unsuitable.

D:

Licensing constraints were omitted until after destination EC2 instances were chosen. The specific problem here is that all assets are scheduled for direct rehost even when some are obsolete or unsuitable.

Question 635

An architecture review recommends this solution: Consider DynamoDB global tables with application-safe conflict semantics and tested replication behavior. The motivating situation is: Globally dispersed users require low-latency local writes to the same DynamoDB dataset with multi-Region availability. Which principle would a reviewer use to defend this design?

  1. Aurora Global Database supports low-latency crossregional replication with explicit recovery operations
  2. Stateful network inspection requires symmetric paths through the selected inspection appliance
  3. Route 53 health-check failover can redirect future DNS resolutions between operational regional endpoints
  4. Global tables provide multi-Region replication with eventual cross-Region convergence semantics

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Consider DynamoDB global tables with application-safe conflict semantics and tested replication behavior. The expected supporting evidence is: Writes in either Region replicate to the other and conflict handling matches the business design.

Incorrect Answers

A:

A single-Region Aurora cluster lacks a suitable crossregional disaster recovery target. The stated evidence instead indicates: A single-Region DynamoDB table cannot accept the required local writes after that Region fails.

B:

The inspection design allows forward and return packets to use different stateful inspection appliances. The stated evidence instead indicates: A single-Region DynamoDB table cannot accept the required local writes after that Region fails.

C:

The backup Region exists but DNS routing never changes after primary endpoint failure. The stated evidence instead indicates: A single-Region DynamoDB table cannot accept the required local writes after that Region fails.

Question 636

An architecture review recommends this solution: Implement a tested backup-and-restore disaster recovery pattern with documented recovery runbooks. The motivating situation is: A noncritical archive service has a 24-hour RTO and may restore its configuration and data from protected backups. Why does this approach fit the stated design constraints?

  1. Cross-Region read replicas are asynchronous and may require explicit promotion in recovery
  2. WAF rate-based rules can limit excessive HTTP request patterns by aggregation key
  3. Active-active architectures provide immediate regional capacity but require safe multi-Region data behavior
  4. Backup-and-restore DR suits longer RTO targets when restore execution is practiced

Explanation

Correct Answer

D:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Implement a tested backup-and-restore disaster recovery pattern with documented recovery runbooks. The expected supporting evidence is: A restore drill meets the 24-hour recovery target with verified data integrity and access.

Incorrect Answers

A:

A standard read replica is assumed to be a synchronous multi-Region failover mechanism without promotion. The stated evidence instead indicates: A backup exists but no restore procedure or measured restore duration has been proven.

B:

The service relies solely on application code with no rate-based edge filtering. The stated evidence instead indicates: A backup exists but no restore procedure or measured restore duration has been proven.

C:

A single active Region was incorrectly advertised as having near-zero recovery time. The stated evidence instead indicates: A backup exists but no restore procedure or measured restore duration has been proven.

Question 637

A professional architect is reviewing two independent workstreams. Requirement A: A legacy application has a few-hour RTO but cannot justify running the complete secondary stack continuously. Requirement B: An AWS KMS-encrypted data key is shared with a role but decrypts still fail because the key's resource policy grants no access. Choose TWO actions that directly address these separate problems.

  1. Configure EventBridge archives and event replay with selection patterns and measured retention
  2. Update the KMS key policy or grants alongside the principal's IAM permissions as required
  3. Move the secret to AWS Secrets Manager and adopt controlled retrieval and rotation integration
  4. Maintain a pilot-light copy of the essential data and core services and automate remaining capacity restoration
  5. Configure protected AWS Backup Vault Lock compliance settings with appropriate retention and access governance

Explanation

Correct Answers

B:

This action meets the independently stated requirement B: An AWS KMS-encrypted data key is shared with a role but decrypts still fail because the key's resource policy grants no access. KMS key authorization depends on the owning key policy as well as applicable principal policies. A direct acceptance check is: The authorized role decrypts the designated ciphertext while an unrelated role remains denied.

D:

This action meets the independently stated requirement A: A legacy application has a few-hour RTO but cannot justify running the complete secondary stack continuously. Pilot light retains critical replicated services while reconstructing additional capacity during recovery. A direct acceptance check is: A drill scales the secondary stack from its minimal footprint within the agreed RTO.

Incorrect Answers

A:

This action targets a different technical need: A busy event-routing platform must retain dropped partner events for later controlled replay after a bug fix. It does not replace either required solution in A or B. EventBridge event archives retain matching historical events for later replay; verify the two stated requirements independently rather than accepting an unrelated change.

C:

This action targets a different technical need: A service currently stores a database password in deployment environment text and needs managed rotation without code updates. It does not replace either required solution in A or B. Secrets Manager can store and rotate secrets with applications retrieving current authorized values; verify the two stated requirements independently rather than accepting an unrelated change.

E:

This action targets a different technical need: Business records must remain tamper-resistant during the retention period even if a security administrator compromises a backup account. It does not replace either required solution in A or B. Backup Vault Lock compliance controls can enforce retained recovery-point immutability; verify the two stated requirements independently rather than accepting an unrelated change.

Question 638

An architecture review recommends this solution: Use weighted Route 53 or application load balancer traffic shifting with monitored cutover and rollback criteria. The motivating situation is: A brownfield workload must shift gradually from a legacy load balancer to a new service while preserving rollback. Which technical principle most strongly justifies this recommendation?

  1. Weighted routing can support staged migration when health checks and client caching are considered
  2. CDK expresses infrastructure as code while CloudFormation supplies deployed resource state
  3. Shield Advanced adds advanced DDoS protection and response support for supported resources
  4. ECR repository replication supports regional availability of container images when configured

Explanation

Correct Answer

A:

This principle explains why the prescribed control is appropriate for the described requirement. The matching design action is: Use weighted Route 53 or application load balancer traffic shifting with monitored cutover and rollback criteria. The expected supporting evidence is: Small traffic shares move to the new stack first; an error alarm redirects traffic to the proven stack.

Incorrect Answers

B:

Console-created infrastructure diverged from versioned architecture definitions. The stated evidence instead indicates: One abrupt DNS change replaced every consumer endpoint with no controlled canary or rollback.

C:

Basic infrastructure availability controls were mistaken for managed advanced DDoS response workflow. The stated evidence instead indicates: One abrupt DNS change replaced every consumer endpoint with no controlled canary or rollback.

D:

The disaster-recovery Region has no local image copy and the deployment assumes remote registry availability. The stated evidence instead indicates: One abrupt DNS change replaced every consumer endpoint with no controlled canary or rollback.

Question 639

A deployed environment still does not meet the original requirement: A central networking account must share an existing Transit Gateway with application accounts without duplicating it. Which root cause is most consistent with the observation?

  1. Each application team is provisioning its own disconnected backbone gateway
  2. Events remain confined to local account buses because cross-account bus authorization is absent
  3. Individual accounts use drifting custom schedules that do not match central backup policy
  4. Overlapping network prefixes make ordinary VPC peering route selection ambiguous

Explanation

Correct Answer

A:

This is the technical design error aligned with the unmet requirement. AWS RAM can share supported resources while ownership remains in a central account. The appropriate correction is: Share the eligible Transit Gateway using AWS Resource Access Manager and explicit attachment routing permissions. The control should then be tested by verifying that Approved application accounts can create authorized attachments to the centrally owned gateway.

Incorrect Answers

B:

Events remain confined to local account buses because cross-account bus authorization is absent. The stated evidence instead indicates: Each application team is provisioning its own disconnected backbone gateway.

C:

Individual accounts use drifting custom schedules that do not match central backup policy. The stated evidence instead indicates: Each application team is provisioning its own disconnected backbone gateway.

D:

Overlapping network prefixes make ordinary VPC peering route selection ambiguous. The stated evidence instead indicates: Each application team is provisioning its own disconnected backbone gateway.

Question 640

For the enterprise requirement "A Lambda-backed API team wants to expose only ten percent of traffic to a new function revision before promoting it", the team implemented this change: Publish a Lambda version and configure weighted alias routing with deployment alarms. Which observation should be required before the change is approved?

  1. Failed security or smoke tests prevent production deployment while passing builds can be promoted
  2. A newly added target account receives the intended stack instances while an excluded OU does not
  3. The alias sends the intended approximate percentage to the canary version and reverts after a simulated alarm
  4. Storage-class distribution follows observed access and availability constraints without extensive manual classification

Explanation

Correct Answer

C:

This measures the behavior required by the specific solution, rather than simply checking that it was configured. Lambda aliases support weighted traffic between published versions with monitored promotion. The acceptance condition is linked directly to the scenario: A Lambda-backed API team wants to expose only ten percent of traffic to a new function revision before promoting it.

Incorrect Answers

A:

Failed security or smoke tests prevent production deployment while passing builds can be promoted. However, this does not establish the required outcome: the alias sends the intended approximate percentage to the canary version and reverts after a simulated alarm.

B:

A newly added target account receives the intended stack instances while an excluded OU does not. However, this does not establish the required outcome: the alias sends the intended approximate percentage to the canary version and reverts after a simulated alarm.

D:

Storage-class distribution follows observed access and availability constraints without extensive manual classification. However, this does not establish the required outcome: the alias sends the intended approximate percentage to the canary version and reverts after a simulated alarm.