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Amazon AWS Certified Machine Learning Engineer - Associate MLA-C01 Practice Test 39
Question 380
During a production readiness audit, three independent ML pipeline behaviors must be verified. Workstream A: Three environments require matching SageMaker endpoints, IAM roles, and logging resources managed through reviewed version-controlled templates. Workstream B: A regulated SageMaker endpoint must be reachable only through authorized internal application traffic and cannot expose inference calls publicly. Workstream C: A customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. Select exactly THREE observations, one diagnostic that directly tests each workstream.
- Inspect cold-start duration and supported provisioned concurrency settings for serverless inference.
- Review GPU utilization, CPU preprocessing time, and input-pipeline throughput across representative batches.
- Inspect endpoint healthy instance placement and traffic response during simulated instance failure.
- Compare AWS CloudFormation stack changesets and resource drift across environments.
- Inspect VPC interface endpoints, endpoint configuration, security groups, and DNS resolution.
- Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
Explanation
Correct Answers
C:This evidence directly tests the reported behavior: Inspect endpoint healthy instance placement and traffic response during simulated instance failure. For this case, a customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. The results tell the team whether to apply the targeted change: Configure sufficient endpoint instance capacity and suitable managed hosting resilience across eligible availability zones.
D:This evidence directly tests the reported behavior: Compare AWS CloudFormation stack changesets and resource drift across environments. For this case, three environments require matching SageMaker endpoints, IAM roles, and logging resources managed through reviewed version-controlled templates. The results tell the team whether to apply the targeted change: Express the infrastructure in CloudFormation templates and deploy reviewed stack updates.
E:This evidence directly tests the reported behavior: Inspect VPC interface endpoints, endpoint configuration, security groups, and DNS resolution. For this case, a regulated SageMaker endpoint must be reachable only through authorized internal application traffic and cannot expose inference calls publicly. The results tell the team whether to apply the targeted change: Use supported private networking and VPC interface endpoints for SageMaker API or runtime access with restrictive security groups.
Incorrect Answers
A:That alternative addresses a different task: A low-traffic model has occasional latency-sensitive bursts, but its first invocation after idle time suffers from cold initialization. The selected workloads instead require CloudFormation reproducible endpoint, Private endpoint networking, Resilient inference across zones.
B:That alternative addresses a different task: A PyTorch training job uses a large GPU instance even though monitoring shows the GPU is idle while CPU data decoding is saturated. The selected workloads instead require CloudFormation reproducible endpoint, Private endpoint networking, Resilient inference across zones.
F:That alternative addresses a different task: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The selected workloads instead require CloudFormation reproducible endpoint, Private endpoint networking, Resilient inference across zones.
Question 381
During a production readiness audit, three independent ML pipeline behaviors must be verified. Workstream A: An application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. Workstream B: A training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. Workstream C: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. Select exactly THREE observations, one diagnostic that directly tests each workstream.
- Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions.
- Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
- Inspect stack outputs, import references, and environment ownership boundaries.
- Compare scaling schedules against historical request arrival and cold instance readiness times.
- Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment.
- Review GPU utilization, CPU preprocessing time, and input-pipeline throughput across representative batches.
Explanation
Correct Answers
A:This evidence directly tests the reported behavior: Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions. For this case, a training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. The results tell the team whether to apply the targeted change: Add an authorized S3 gateway endpoint or supported private access path and required bucket permissions.
D:This evidence directly tests the reported behavior: Compare scaling schedules against historical request arrival and cold instance readiness times. For this case, each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. The results tell the team whether to apply the targeted change: Add scheduled scaling actions to raise endpoint minimum desired capacity before the expected peak.
E:This evidence directly tests the reported behavior: Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment. For this case, an application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. The results tell the team whether to apply the targeted change: Define versioned AWS CDK constructs and synthesize them into approved CloudFormation stacks.
Incorrect Answers
B:That alternative addresses a different task: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The selected workloads instead require Typed infrastructure CDK, Private S3 access for training, Scheduled proactive endpoint scale.
C:That alternative addresses a different task: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The selected workloads instead require Typed infrastructure CDK, Private S3 access for training, Scheduled proactive endpoint scale.
F:That alternative addresses a different task: A PyTorch training job uses a large GPU instance even though monitoring shows the GPU is idle while CPU data decoding is saturated. The selected workloads instead require Typed infrastructure CDK, Private S3 access for training, Scheduled proactive endpoint scale.
Question 382
During a production readiness audit, three independent ML pipeline behaviors must be verified. Workstream A: An online model is overloaded during lunch-hour spikes while endpoint instances sit mostly idle overnight. Workstream B: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. Workstream C: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. Select exactly THREE observations, one diagnostic that directly tests each workstream.
- Inspect stack outputs, import references, and environment ownership boundaries.
- Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
- Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment.
- Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions.
- Inspect endpoint healthy instance placement and traffic response during simulated instance failure.
- Compare SageMaker InvocationsPerInstance and latency trends against actual serving capacity.
Explanation
Correct Answers
A:This evidence directly tests the reported behavior: Inspect stack outputs, import references, and environment ownership boundaries. For this case, a platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The results tell the team whether to apply the targeted change: Publish approved CloudFormation outputs and import supported identifiers into the dependent stack.
B:This evidence directly tests the reported behavior: Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand. For this case, a cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The results tell the team whether to apply the targeted change: Enable managed Spot training and store durable checkpoints for resumption.
F:This evidence directly tests the reported behavior: Compare SageMaker InvocationsPerInstance and latency trends against actual serving capacity. For this case, an online model is overloaded during lunch-hour spikes while endpoint instances sit mostly idle overnight. The results tell the team whether to apply the targeted change: Configure endpoint auto scaling on a tested invocations-per-instance target with suitable minimum and maximum capacity.
Incorrect Answers
C:That alternative addresses a different task: An application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. The selected workloads instead require Invocation based endpoint scaling, Spot training interruption strategy, Cross stack resource sharing.
D:That alternative addresses a different task: A training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. The selected workloads instead require Invocation based endpoint scaling, Spot training interruption strategy, Cross stack resource sharing.
E:That alternative addresses a different task: A customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. The selected workloads instead require Invocation based endpoint scaling, Spot training interruption strategy, Cross stack resource sharing.
Question 383
During a production readiness audit, three independent ML pipeline behaviors must be verified. Workstream A: A low-traffic model has occasional latency-sensitive bursts, but its first invocation after idle time suffers from cold initialization. Workstream B: A customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. Workstream C: Three environments require matching SageMaker endpoints, IAM roles, and logging resources managed through reviewed version-controlled templates. Select exactly THREE observations, one diagnostic that directly tests each workstream.
- Inspect stack outputs, import references, and environment ownership boundaries.
- Inspect endpoint healthy instance placement and traffic response during simulated instance failure.
- Review GPU utilization, CPU preprocessing time, and input-pipeline throughput across representative batches.
- Compare AWS CloudFormation stack changesets and resource drift across environments.
- Inspect cold-start duration and supported provisioned concurrency settings for serverless inference.
- Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
Explanation
Correct Answers
B:This evidence directly tests the reported behavior: Inspect endpoint healthy instance placement and traffic response during simulated instance failure. For this case, a customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. The results tell the team whether to apply the targeted change: Configure sufficient endpoint instance capacity and suitable managed hosting resilience across eligible availability zones.
D:This evidence directly tests the reported behavior: Compare AWS CloudFormation stack changesets and resource drift across environments. For this case, three environments require matching SageMaker endpoints, IAM roles, and logging resources managed through reviewed version-controlled templates. The results tell the team whether to apply the targeted change: Express the infrastructure in CloudFormation templates and deploy reviewed stack updates.
E:This evidence directly tests the reported behavior: Inspect cold-start duration and supported provisioned concurrency settings for serverless inference. For this case, a low-traffic model has occasional latency-sensitive bursts, but its first invocation after idle time suffers from cold initialization. The results tell the team whether to apply the targeted change: Configure appropriate SageMaker serverless inference provisioned concurrency for predictable warm capacity.
Incorrect Answers
A:That alternative addresses a different task: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The selected workloads instead require Serverless warm capacity, Resilient inference across zones, CloudFormation reproducible endpoint.
C:That alternative addresses a different task: A PyTorch training job uses a large GPU instance even though monitoring shows the GPU is idle while CPU data decoding is saturated. The selected workloads instead require Serverless warm capacity, Resilient inference across zones, CloudFormation reproducible endpoint.
F:That alternative addresses a different task: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The selected workloads instead require Serverless warm capacity, Resilient inference across zones, CloudFormation reproducible endpoint.
Question 384
During a production readiness audit, three independent ML pipeline behaviors must be verified. Workstream A: A PyTorch training job uses a large GPU instance even though monitoring shows the GPU is idle while CPU data decoding is saturated. Workstream B: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. Workstream C: An application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. Select exactly THREE observations, one diagnostic that directly tests each workstream.
- Inspect cold-start duration and supported provisioned concurrency settings for serverless inference.
- Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment.
- Compare scaling schedules against historical request arrival and cold instance readiness times.
- Review GPU utilization, CPU preprocessing time, and input-pipeline throughput across representative batches.
- Inspect stack outputs, import references, and environment ownership boundaries.
- Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions.
Explanation
Correct Answers
B:This evidence directly tests the reported behavior: Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment. For this case, an application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. The results tell the team whether to apply the targeted change: Define versioned AWS CDK constructs and synthesize them into approved CloudFormation stacks.
C:This evidence directly tests the reported behavior: Compare scaling schedules against historical request arrival and cold instance readiness times. For this case, each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. The results tell the team whether to apply the targeted change: Add scheduled scaling actions to raise endpoint minimum desired capacity before the expected peak.
D:This evidence directly tests the reported behavior: Review GPU utilization, CPU preprocessing time, and input-pipeline throughput across representative batches. For this case, a PyTorch training job uses a large GPU instance even though monitoring shows the GPU is idle while CPU data decoding is saturated. The results tell the team whether to apply the targeted change: Fix input throughput or select a more appropriate training instance before increasing GPU size.
Incorrect Answers
A:That alternative addresses a different task: A low-traffic model has occasional latency-sensitive bursts, but its first invocation after idle time suffers from cold initialization. The selected workloads instead require Training compute right sizing, Scheduled proactive endpoint scale, Typed infrastructure CDK.
E:That alternative addresses a different task: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The selected workloads instead require Training compute right sizing, Scheduled proactive endpoint scale, Typed infrastructure CDK.
F:That alternative addresses a different task: A training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. The selected workloads instead require Training compute right sizing, Scheduled proactive endpoint scale, Typed infrastructure CDK.
Question 385
Before making a production change, an engineer must investigate this condition: A regulated SageMaker endpoint must be reachable only through authorized internal application traffic and cannot expose inference calls publicly. Which diagnostic observation most directly evaluates the reported condition?
- Compare SageMaker InvocationsPerInstance and latency trends against actual serving capacity.
- Review GPU utilization, CPU preprocessing time, and input-pipeline throughput across representative batches.
- Inspect VPC interface endpoints, endpoint configuration, security groups, and DNS resolution.
- Compare scaling schedules against historical request arrival and cold instance readiness times.
Explanation
Correct Answer
C:This evidence directly tests the reported behavior: Inspect VPC interface endpoints, endpoint configuration, security groups, and DNS resolution. For this case, a regulated SageMaker endpoint must be reachable only through authorized internal application traffic and cannot expose inference calls publicly. The results tell the team whether to apply the targeted change: Use supported private networking and VPC interface endpoints for SageMaker API or runtime access with restrictive security groups.
Incorrect Answers
A:That diagnostic measures a different AWS ML behavior: An online model is overloaded during lunch-hour spikes while endpoint instances sit mostly idle overnight. It cannot establish the main condition: A regulated SageMaker endpoint must be reachable only through authorized internal application traffic and cannot expose inference calls publicly. The decisive evidence for this case is: Inspect VPC interface endpoints, endpoint configuration, security groups, and DNS resolution.
B:That diagnostic measures a different AWS ML behavior: A PyTorch training job uses a large GPU instance even though monitoring shows the GPU is idle while CPU data decoding is saturated. It cannot establish the main condition: A regulated SageMaker endpoint must be reachable only through authorized internal application traffic and cannot expose inference calls publicly. The decisive evidence for this case is: Inspect VPC interface endpoints, endpoint configuration, security groups, and DNS resolution.
D:That diagnostic measures a different AWS ML behavior: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. It cannot establish the main condition: A regulated SageMaker endpoint must be reachable only through authorized internal application traffic and cannot expose inference calls publicly. The decisive evidence for this case is: Inspect VPC interface endpoints, endpoint configuration, security groups, and DNS resolution.
Question 386
The ML operations team needs direct evidence about this situation: A training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. Which diagnostic observation most directly evaluates the reported condition?
- Compare scaling schedules against historical request arrival and cold instance readiness times.
- Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions.
- Compare SageMaker InvocationsPerInstance and latency trends against actual serving capacity.
- Compare AWS CloudFormation stack changesets and resource drift across environments.
Explanation
Correct Answer
B:This evidence directly tests the reported behavior: Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions. For this case, a training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. The results tell the team whether to apply the targeted change: Add an authorized S3 gateway endpoint or supported private access path and required bucket permissions.
Incorrect Answers
A:That diagnostic measures a different AWS ML behavior: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. It cannot establish the main condition: A training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. The decisive evidence for this case is: Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions.
C:That diagnostic measures a different AWS ML behavior: An online model is overloaded during lunch-hour spikes while endpoint instances sit mostly idle overnight. It cannot establish the main condition: A training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. The decisive evidence for this case is: Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions.
D:That diagnostic measures a different AWS ML behavior: Three environments require matching SageMaker endpoints, IAM roles, and logging resources managed through reviewed version-controlled templates. It cannot establish the main condition: A training job running within private subnets cannot download its input data because no public internet route or VPC endpoint is available. The decisive evidence for this case is: Inspect route tables, S3 VPC endpoint association, endpoint policy, and the execution role's S3 permissions.
Question 387
A data-science incident must be diagnosed without guessing: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. Which diagnostic observation most directly evaluates the reported condition?
- Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment.
- Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
- Compare AWS CloudFormation stack changesets and resource drift across environments.
- Inspect stack outputs, import references, and environment ownership boundaries.
Explanation
Correct Answer
B:This evidence directly tests the reported behavior: Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand. For this case, a cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The results tell the team whether to apply the targeted change: Enable managed Spot training and store durable checkpoints for resumption.
Incorrect Answers
A:That diagnostic measures a different AWS ML behavior: An application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. It cannot establish the main condition: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The decisive evidence for this case is: Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
C:That diagnostic measures a different AWS ML behavior: Three environments require matching SageMaker endpoints, IAM roles, and logging resources managed through reviewed version-controlled templates. It cannot establish the main condition: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The decisive evidence for this case is: Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
D:That diagnostic measures a different AWS ML behavior: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. It cannot establish the main condition: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. The decisive evidence for this case is: Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
Question 388
Before making a production change, an engineer must investigate this condition: A customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. Which diagnostic observation most directly evaluates the reported condition?
- Review GPU utilization, CPU preprocessing time, and input-pipeline throughput across representative batches.
- Inspect endpoint healthy instance placement and traffic response during simulated instance failure.
- Inspect stack outputs, import references, and environment ownership boundaries.
- Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment.
Explanation
Correct Answer
B:This evidence directly tests the reported behavior: Inspect endpoint healthy instance placement and traffic response during simulated instance failure. For this case, a customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. The results tell the team whether to apply the targeted change: Configure sufficient endpoint instance capacity and suitable managed hosting resilience across eligible availability zones.
Incorrect Answers
A:That diagnostic measures a different AWS ML behavior: A PyTorch training job uses a large GPU instance even though monitoring shows the GPU is idle while CPU data decoding is saturated. It cannot establish the main condition: A customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. The decisive evidence for this case is: Inspect endpoint healthy instance placement and traffic response during simulated instance failure.
C:That diagnostic measures a different AWS ML behavior: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. It cannot establish the main condition: A customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. The decisive evidence for this case is: Inspect endpoint healthy instance placement and traffic response during simulated instance failure.
D:That diagnostic measures a different AWS ML behavior: An application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. It cannot establish the main condition: A customer-facing model service requires continued availability after a single Availability Zone problem and relies on a managed SageMaker real-time endpoint. The decisive evidence for this case is: Inspect endpoint healthy instance placement and traffic response during simulated instance failure.
Question 389
The ML operations team needs direct evidence about this situation: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. Which diagnostic observation most directly evaluates the reported condition?
- Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment.
- Inspect stack outputs, import references, and environment ownership boundaries.
- Inspect cold-start duration and supported provisioned concurrency settings for serverless inference.
- Compare scaling schedules against historical request arrival and cold instance readiness times.
Explanation
Correct Answer
D:This evidence directly tests the reported behavior: Compare scaling schedules against historical request arrival and cold instance readiness times. For this case, each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. The results tell the team whether to apply the targeted change: Add scheduled scaling actions to raise endpoint minimum desired capacity before the expected peak.
Incorrect Answers
A:That diagnostic measures a different AWS ML behavior: An application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. It cannot establish the main condition: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. The decisive evidence for this case is: Compare scaling schedules against historical request arrival and cold instance readiness times.
B:That diagnostic measures a different AWS ML behavior: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. It cannot establish the main condition: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. The decisive evidence for this case is: Compare scaling schedules against historical request arrival and cold instance readiness times.
C:That diagnostic measures a different AWS ML behavior: A low-traffic model has occasional latency-sensitive bursts, but its first invocation after idle time suffers from cold initialization. It cannot establish the main condition: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. The decisive evidence for this case is: Compare scaling schedules against historical request arrival and cold instance readiness times.
Question 390
A data-science incident must be diagnosed without guessing: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. Which diagnostic observation most directly evaluates the reported condition?
- Review interruptions, checkpoint availability, and managed Spot training savings relative to On-Demand.
- Inspect stack outputs, import references, and environment ownership boundaries.
- Compare scaling schedules against historical request arrival and cold instance readiness times.
- Inspect synthesized CloudFormation templates and AWS CDK stack diff output before deployment.
Explanation
Correct Answer
B:This evidence directly tests the reported behavior: Inspect stack outputs, import references, and environment ownership boundaries. For this case, a platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The results tell the team whether to apply the targeted change: Publish approved CloudFormation outputs and import supported identifiers into the dependent stack.
Incorrect Answers
A:That diagnostic measures a different AWS ML behavior: A cost-constrained image training experiment can tolerate restart and should consume spare managed training capacity where available. It cannot establish the main condition: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The decisive evidence for this case is: Inspect stack outputs, import references, and environment ownership boundaries.
C:That diagnostic measures a different AWS ML behavior: Each Monday at 9 AM an online scoring service sees a predictable traffic jump that outpaces reactive auto scaling during the first minutes. It cannot establish the main condition: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The decisive evidence for this case is: Inspect stack outputs, import references, and environment ownership boundaries.
D:That diagnostic measures a different AWS ML behavior: An application team wants reusable infrastructure constructs and automated checks using its existing TypeScript codebase rather than hand-editing long YAML definitions. It cannot establish the main condition: A platform team manages networking in one AWS CloudFormation stack and SageMaker inference resources in another, and needs a controlled reference to an existing subnet ID. The decisive evidence for this case is: Inspect stack outputs, import references, and environment ownership boundaries.
AWS Certified Machine Learning Engineer - Associate MLA-C01 Practice Tests