AWS-Certified-Machine-Learning-Specialty Free Practice Test

A company offers an online shopping service to its customers. The company wants to enhance the site’s security by requesting additional information when customers access the site from locations that are different from their normal location. The company wants to update the process to call a machine learning (ML) model to determine when additional information should be requested.
The company has several terabytes of data from its existing ecommerce web servers containing the source IP addresses for each request made to the web server. For authenticated requests, the records also contain the login name of the requesting user.
Which approach should an ML specialist take to implement the new security feature in the web application?

1. A. Use Amazon SageMaker Ground Truth to label each record as either a successful or failed access attemp
2. B. Use Amazon SageMaker to train a binary classification model using the factorization machines (FM) algorithm.
3. C. Use Amazon SageMaker to train a model using the IP Insights algorith
4. D. Schedule updates and retraining of the model using new log data nightly.
5. E. Use Amazon SageMaker Ground Truth to label each record as either a successful or failed access attemp
6. F. Use Amazon SageMaker to train a binary classification model using the IP Insights algorithm.
7. G. Use Amazon SageMaker to train a model using the Object2Vec algorith
8. H. Schedule updates and retraining of the model using new log data nightly.

Correct Answer: C

A manufacturing company asks its Machine Learning Specialist to develop a model that classifies defective parts into one of eight defect types. The company has provided roughly 100000 images per defect type for training During the injial training of the image classification model the Specialist notices that the validation accuracy is 80%, while the training accuracy is 90% It is known that human-level performance for this type of image classification is around 90%
What should the Specialist consider to fix this issue1?

1. A. A longer training time
2. B. Making the network larger
3. C. Using a different optimizer
4. D. Using some form of regularization

Correct Answer: D