Question 760
At Northgate Telecom, the network analytics engineers maintain service incident prediction and telemetry classifiers under requirements for streaming integrity and scalable model monitoring. Following the controlled change, the team validates: An inference workload maintains two always-on high-memory SageMaker endpoints for models invoked only during a brief nightly window. Which observed result BEST demonstrates that the correction works?
Explanation
Correct Answer
The nightly workload still meets its completion target while cost reports show reduced idle serving hours. This is observable proof for correction of: An inference workload maintains two always-on high-memory SageMaker endpoints for models invoked only during a brief nightly window. The approved design change is: Measure invocation patterns and replace unnecessary continuous capacity with supported scheduled batch or appropriately scaled alternatives. The Northgate Telecom acceptance test separates measured ML behavior from an unverified implementation claim.
Incorrect Answers
A training role cannot approve its own model package and a designated release role can promote a reviewed version. This would verify a different operation: Separate training, model approval and production deployment identities with explicit role and approval boundaries. That separate action addresses: A machine learning pipeline uses a single IAM role to train models, approve registry packages and update production endpoints. It cannot establish the required Northgate Telecom correction for: An inference workload maintains two always-on high-memory SageMaker endpoints for models invoked only during a brief nightly window. The decisive acceptance check is instead: The nightly workload still meets its completion target while cost reports show reduced idle serving hours.
A representative request cohort produces traceable per-model score differences and unacceptable changes block promotion. This would verify a different operation: Run shadow or controlled A/B inference comparisons with logged model version and matched request IDs before full rollout. That separate action addresses: A retrained model is deployed without comparing its output distributions with the approved production model, causing unexplained score shifts. It cannot establish the required Northgate Telecom correction for: An inference workload maintains two always-on high-memory SageMaker endpoints for models invoked only during a brief nightly window. The decisive acceptance check is instead: The nightly workload still meets its completion target while cost reports show reduced idle serving hours.
A controlled prediction from the new variant appears in the correct monitoring dataset and the old variant is not mistaken for current. This would verify a different operation: Update monitored endpoint or variant configuration and baseline references as part of the versioned deployment process. That separate action addresses: A risk model is deployed with a new model version but its SageMaker Model Monitor schedule continues capturing only the old endpoint variant. It cannot establish the required Northgate Telecom correction for: An inference workload maintains two always-on high-memory SageMaker endpoints for models invoked only during a brief nightly window. The decisive acceptance check is instead: The nightly workload still meets its completion target while cost reports show reduced idle serving hours.