Question 1

A data scientist needs to identify fraudulent user accounts for a company's ecommerce platform.The company wants the ability to determine if a newly created account is associated with a previously known fraudulent user. The data scientist is using AWS Glue to cleanse the company's application logs during ingestion.Which strategy will allow the data scientist to identify fraudulent accounts?

Options :

A : Create a FindMatches machine learning transform in AWS Glue.

B : Run the built-in FindDuplicates Amazon Athena query.

C : Create an AWS Glue crawler to infer duplicate accounts in the source data.

D : Search for duplicate accounts in the AWS Glue Data Catalog.

Answer: A

Question 2

How do ride-sharing apps like Uber and Lyft use machine learning?

Options :

A : To recommend destinations

B : To lower wait times

C : For demand prediction

D : To optimize price setting

Answer: B,C,D

Question 3

What kind of data does Amazon Forecast require to get started?

Options :

A : Historical data and any additional data that may impact forecasts.

B : Customer feedback and purchase history.

C : Shipment data and warehouse operations data.

D : Real-time data collected from Alexa devices.

Answer: A

Question 4

A Machine Learning Specialist is implementing a full Bayesian network on a dataset that describes public transit in New York City.One of the random variables is discrete and represents the number of minutes New Yorkers wait for a bus given that the buses cycle every 10 minutes, with a mean of 3 minutes.Which prior probability distribution should the ML Specialist use for this variable?

Options :

A : Normal distribution

B : Poisson distribution

C : Uniform distribution

D : Binomial distribution

Answer: D

Question 5

In what scenario would traditional programming techniques be preferable over ML?

Options :

A : When complex logic and scalability are required.

B : When the problem can be solved with simple rules.

C : When personalized recommendations are needed.

D : When quick adaptation to new data is necessary.

Answer: B

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