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MLS-C01 Practice Questions

AWS Certified Machine Learning - Specialty

Last Update 2 months ago
Total Questions : 330

Dive into our fully updated and stable MLS-C01 practice test platform, featuring all the latest AWS Certified Specialty exam questions added this week. Our preparation tool is more than just a Amazon Web Services study aid; it's a strategic advantage.

Our free AWS Certified Specialty practice questions crafted to reflect the domains and difficulty of the actual exam. The detailed rationales explain the 'why' behind each answer, reinforcing key concepts about MLS-C01. Use this test to pinpoint which areas you need to focus your study on.

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Question # 31

A university wants to develop a targeted recruitment strategy to increase new student enrollment. A data scientist gathers information about the academic performance history of students. The data scientist wants to use the data to build student profiles. The university will use the profiles to direct resources to recruit students who are likely to enroll in the university.

Which combination of steps should the data scientist take to predict whether a particular student applicant is likely to enroll in the university? (Select TWO)

Options:

A.  

Use Amazon SageMaker Ground Truth to sort the data into two groups named "enrolled" or "not enrolled."

B.  

Use a forecasting algorithm to run predictions.

C.  

Use a regression algorithm to run predictions.

D.  

Use a classification algorithm to run predictions

E.  

Use the built-in Amazon SageMaker k-means algorithm to cluster the data into two groups named "enrolled" or "not enrolled."

Discussion 0
Question # 32

A data scientist wants to improve the fit of a machine learning (ML) model that predicts house prices. The data scientist makes a first attempt to fit the model, but the fitted model has poor accuracy on both the training dataset and the test dataset.

Which steps must the data scientist take to improve model accuracy? (Select THRE

E.  

)

Options:

A.  

Increase the amount of regularization that the model uses.

B.  

Decrease the amount of regularization that the model uses.

C.  

Increase the number of training examples that that model uses.

D.  

Increase the number of test examples that the model uses.

E.  

Increase the number of model features that the model uses.

F.  

Decrease the number of model features that the model uses.

Discussion 0
Question # 33

A trucking company is collecting live image data from its fleet of trucks across the globe. The data is growing rapidly and approximately 100 GB of new data is generated every day. The company wants to explore machine learning uses cases while ensuring the data is only accessible to specific IAM users.

Which storage option provides the most processing flexibility and will allow access control with IAM?

Options:

A.  

Use a database, such as Amazon DynamoDB, to store the images, and set the IAM policies to restrict access to only the desired IAM users.

B.  

Use an Amazon S3-backed data lake to store the raw images, and set up the permissions using bucket policies.

C.  

Setup up Amazon EMR with Hadoop Distributed File System (HDFS) to store the files, and restrict access to the EMR instances using IAM policies.

D.  

Configure Amazon EFS with IAM policies to make the data available to Amazon EC2 instances owned by the IAM users.

Discussion 0
Question # 34

A wildlife research company has a set of images of lions and cheetahs. The company created a dataset of the images. The company labeled each image with a binary label that indicates whether an image contains a lion or cheetah. The company wants to train a model to identify whether new images contain a lion or cheetah.

.... Dh Amazon SageMaker algorithm will meet this requirement?

Options:

A.  

XGBoost

B.  

Image Classification - TensorFlow

C.  

Object Detection - TensorFlow

D.  

Semantic segmentation - MXNet

Discussion 0
Question # 35

A Machine Learning Specialist needs to move and transform data in preparation for training Some of the data needs to be processed in near-real time and other data can be moved hourly There are existing Amazon EMR MapReduce jobs to clean and feature engineering to perform on the data

Which of the following services can feed data to the MapReduce jobs? (Select TWO )

Options:

A.  

AWSDMS

B.  

Amazon Kinesis

C.  

AWS Data Pipeline

D.  

Amazon Athena

E.  

Amazon ES

Discussion 0
Question # 36

A Data Science team is designing a dataset repository where it will store a large amount of training data commonly used in its machine learning models. As Data Scientists may create an arbitrary number of new datasets every day the solution has to scale automatically and be cost-effective. Also, it must be possible to explore the data using SQL.

Which storage scheme is MOST adapted to this scenario?

Options:

A.  

Store datasets as files in Amazon S3.

B.  

Store datasets as files in an Amazon EBS volume attached to an Amazon EC2 instance.

C.  

Store datasets as tables in a multi-node Amazon Redshift cluster.

D.  

Store datasets as global tables in Amazon DynamoD

B.  

Discussion 0
Question # 37

A data scientist is designing a repository that will contain many images of vehicles. The repository must scale automatically in size to store new images every day. The repository must support versioning of the images. The data scientist must implement a solution that maintains multiple immediately accessible copies of the data in different AWS Regions.

Which solution will meet these requirements?

Options:

A.  

Amazon S3 with S3 Cross-Region Replication (CRR)

B.  

Amazon Elastic Block Store (Amazon EBS) with snapshots that are shared in a secondary Region

C.  

Amazon Elastic File System (Amazon EFS) Standard storage that is configured with Regional availability

D.  

AWS Storage Gateway Volume Gateway

Discussion 0
Question # 38

A company decides to use Amazon SageMaker to develop machine learning (ML) models. The company will host SageMaker notebook instances in a VP

C.  

The company stores training data in an Amazon S3 bucket. Company security policy states that SageMaker notebook instances must not have internet connectivity.

Which solution will meet the company's security requirements?

Options:

A.  

Connect the SageMaker notebook instances that are in the VPC by using AWS Site-to-Site VPN to encrypt all internet-bound traffic. Configure VPC flow logs. Monitor all network traffic to detect and prevent any malicious activity.

B.  

Configure the VPC that contains the SageMaker notebook instances to use VPC interface endpoints to establish connections for training and hosting. Modify any existing security groups that are associated with the VPC interface endpoint to only allow outbound connections for training and hosting.

C.  

Create an IAM policy that prevents access to the internet. Apply the IAM policy to an IAM role. Assign the IAM role to the SageMaker notebook instances in addition to any IAM roles that are already assigned to the instances.

D.  

Create VPC security groups to prevent all incoming and outgoing traffic. Assign the security groups to the SageMaker notebook instances.

Discussion 0
Question # 39

A Machine Learning Specialist kicks off a hyperparameter tuning job for a tree-based ensemble model using Amazon SageMaker with Area Under the ROC Curve (AUC) as the objective metric This workflow will eventually be deployed in a pipeline that retrains and tunes hyperparameters each night to model click-through on data that goes stale every 24 hours

With the goal of decreasing the amount of time it takes to train these models, and ultimately to decrease costs, the Specialist wants to reconfigure the input hyperparameter range(s)

Which visualization will accomplish this?

Options:

A.  

A histogram showing whether the most important input feature is Gaussian.

B.  

A scatter plot with points colored by target variable that uses (-Distributed Stochastic Neighbor Embedding (I-SNE) to visualize the large number of input variables in an easier-to-read dimension.

C.  

A scatter plot showing (he performance of the objective metric over each training iteration

D.  

A scatter plot showing the correlation between maximum tree depth and the objective metric.

Discussion 0
Question # 40

A data scientist is training a large PyTorch model by using Amazon SageMaker. It takes 10 hours on average to train the model on GPU instances. The data scientist suspects that training is not converging and that

resource utilization is not optimal.

What should the data scientist do to identify and address training issues with the LEAST development effort?

Options:

A.  

Use CPU utilization metrics that are captured in Amazon CloudWatch. Configure a CloudWatch alarm to stop the training job early if low CPU utilization occurs.

B.  

Use high-resolution custom metrics that are captured in Amazon CloudWatch. Configure an AWS Lambda function to analyze the metrics and to stop the training job early if issues are detected.

C.  

Use the SageMaker Debugger vanishing_gradient and LowGPUUtilization built-in rules to detect issues and to launch the StopTrainingJob action if issues are detected.

D.  

Use the SageMaker Debugger confusion and feature_importance_overweight built-in rules to detect issues and to launch the StopTrainingJob action if issues are detected.

Discussion 0
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