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  • Exam Name: Oracle Cloud Infrastructure Data Science 2023 Professional
  • Last Update: May 9, 2024
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1z0-1110-23 Practice Exam Questions with Answers Oracle Cloud Infrastructure Data Science 2023 Professional Certification

Question # 6

While reviewing your data, you discover that your data set has a class imbalance. You are aware that the Accelerated Data Science (ADS) SDK provides multiple built-in automatic transformation tools for data set transformation. Which would be the right tool to correct any imbalance between the classes?

A.

sample()

B.

suggeste_recoomendations()

C.

auto_transform()

D.

visualize_transforms()

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Question # 7

You are a data scientist leveraging the Oracle Cloud Infrastructure (OCI) Language AI service for various types of text analyses. Which TWO capabilities can you utilize with this tool?

A.

Table extraction

B.

Punctuation correction

C.

Sentence diagramming

D.

Topic classification

E.

Sentiment analysis

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Question # 8

The Accelerated Data Science (ADS) model evaluation classes support different types of machine

learning modeling techniques. Which three types of modeling techniques are supported by ADS

Evaluators?

A.

Principal Component Analysis

B.

Multiclass Classification

C.

K-means Clustering

D.

Recurrent Neural Network

E.

Binary Classification

F.

Regression Analysis

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Question # 9

Which of the following TWO non-open source JupyterLab extensions has Oracle Cloud In-frastructure (OCI) Data Science developed and added to the notebook session experience?

A.

Environment Explorer

B.

Table of Contents

C.

Command Palette

D.

Notebook Examples

E.

Terminal

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Question # 10

You want to make your model more parsimonious to reduce the cost of collecting and processing data. You plan to do this by removing features that are highly correlated. You would like to create a heat map that displays the correlation so that you can identify candidate features to remove. Which Accelerated Data Science (ADS) SDK method would be appropriate to display the correlation between Continuous and Categorical features?

A.

Corr{}

B.

Correlation_ratio_plot{}

C.

Pearson_plot{}

D.

Cramersv_plot{}

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Question # 11

When preparing your model artifact to save it to the Oracle Cloud Infrastructure (OCI) Data Science model catalog, you create a score.py file. What is the purpose of the score.py fie?

A.

Define the compute scaling strategy.

B.

Configure the deployment infrastructure.

C.

Define the inference server dependencies.

D.

Execute the inference logic code

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Question # 12

You want to evaluate the relationship between feature values and target variables. You have a

large number of observations having a near uniform distribution and the features are highly

correlated.

Which model explanation technique should you choose?

A.

Feature Permutation Importance Explanations

B.

Local Interpretable Model-Agnostic Explanations

C.

Feature Dependence Explanations

D.

Accumulated Local Effects

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Question # 13

In the Oracle Cloud Infrastructure (OCI) Data Science service, how does Model Catalog help with

model deployment and management in MLOps?

A.

It is a database that stores all the features used in a machine learning model.

B.

It helps to automate the feature engineering process.

C.

It provides a centralized and scalable way to manage models and their metadata.

D.

It helps to package the model and its dependencies into a lightweight, portable container.

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Question # 14

As a data scientist, you are working on a global health data set that has data from more than 50

countries. You want to encode three features such as 'countries', 'race' and 'body organ' as

categories.

Which option would you use to encode the categorical feature?

A.

OneHotEncoder ()

B.

DataFrameLabelEncoder ()

C.

show_in_notebook ()

D.

auto_transform()

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Question # 15

As a data scientist, you are tasked with creating a model training job that is expected to take

different hyperparameter values on every run. What is the most efficient way to set those

parameters with Oracle Data Science Jobs?

A.

Create a new job every time you need to run your code and pass the parameters as

environment variables.

B.

Create a new job by setting the required parameters in your code and create a new job for

every code change.

C.

Create your code to expect different parameters either as environment variables or as

command line arguments, which are set on every job run with different values.

D.

Create your code to expect different parameters as command line arguments and create a

new job every time you run the code.

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Question # 16

As you are working in your notebook session, you find that your notebook session does not have

enough compute CPU and memory for your workload.

How would you scale up your notebook session without losing your work?

A.

Create a temporary bucket on Object Storage, write all your files and data to Object Storage,

delete your notebook session, provision a new notebook session on a larger compute shape,

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and copy your files and data from your temporary bucket onto your new notebook session.

B.

Ensure your files and environments are written to the block volume storage under the

/home/datascience directory, deactivate the notebook session, and activate the notebook

session with a larger compute shape selected.

C.

Download all your files and data to your local machine, delete your notebook session,

provision a new notebook session on a larger compute shape, and upload your files from

your local machine to the new notebook session.

D.

Deactivate your notebook session, provision a new notebook session on a larger compute

shape and re-create all of your file changes.

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Question # 17

You are creating an Oracle Cloud Infrastructure (OCI) Data Science job that will run on a recurring

basis in a production environment. This job will pick up sensitive data from an Object Storage

bucket, train a model, and save it to the model catalog.

How would you design the authentication mechanism for the job?

A.

Create a pre-authenticated request (PAR) for the Object Storage bucket, and use that in the

job code.

B.

Use the resource principal of the job run as the signer in the job code, ensuring there is a

dynamic group for this job run with appropriate access to Object Storage and the model

catalog.

C.

Store your personal OCI config file and keys in the Vault and access the Vault through the job

run resource principal.

D.

Package your personal OCI config file and keys in the job artifact

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Question # 18

During a job run, you receive an error message that no space is left on your disk device. To solve

the problem, you must increase the size of the job storage. What would be the most efficient way to

do this with Data Science Jobs?

A.

Create a new job with increased storage size and then run the job.

B.

On the job run, set the environment variable that helps increase the size-of the storage.

C.

Your code is using too much disk space. Refactor the code to identify the problem.

D.

Edit the job, change the size of the storage of your job, and start a new job run.

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Question # 19

You have an embarrassingly parallel or distributed batch job on a large amount of data that you

consider running using Data Science Jobs. What would be the best approach to run the workload?

A.

Create the job in Data Science Jobs and start a job run. When it is done, start a new job run

until you achieve the number of runs required.

B.

Create the job in Data Science Jobs and then start the number of simultaneous jobs runs

required for your workload.

C.

Reconfigure the job run because Data Science Jobs does not support embarrassingly parallel

workloads.

D.

Create a new job for every job run that you have to run in parallel, because the Data Science

Jobs service can have only one job run per job.

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Question # 20

Which Oracle Accelerated Data Science (ADS) classes can be used for easy access to data sets from

reference libraries and index websites such as scikit-learn?

A.

DataLabeling

B.

DatasetBrowser

C.

SecretKeeper

D.

ADSTuner

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Question # 21

As a data scientist, you are trying to automate a machine learning (ML) workflow and have

decided to use Oracle Cloud Infrastructure (OCI) AutoML Pipeline.

Which three are part of the AutoML Pipeline?

A.

Feature Selection

B.

Adaptive Sampling

C.

Model Deployment

D.

Feature Extraction

E.

Algorithm Selection

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Question # 22

For your next data science project, you need access to public geospatial images.

Which Oracle Cloud service provides free access to those images?

A.

Oracle Open Data

B.

Oracle Big Data Service

C.

Oracle Cloud Infrastructure Data Science

D.

Oracle Analytics Cloud

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Question # 23

Select two reasons why it is important to rotate encryption keys when using Oracle Cloud

Infrastructure (OCI) Vault to store credentials or other secrets.

A.

Key rotation allows you to encrypt no more than five keys at a time.

B.

Key rotation improves encryption efficiency.

C.

Periodically rotating keys make it easier to reuse keys.

D.

Key rotation reduces risk if a key is ever compromised.

E.

Periodically rotating keys limits the amount of data encrypted by one key version.

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Question # 24

Using Oracle AutoML, you are tuning hyperparameters on a supported model class and have

specified a time budget. AutoML terminates computation once the time budget is exhausted. What

would you expect AutoML to return in case the time budget is exhausted before hyperparameter

tuning is completed?

A.

The current best-known hyperparameter configuration is returned.

B.

A random hyperparameter configuration is returned.

C.

A hyperparameter configuration with a minimum learning rate is returned.

D.

The last generated hyperparameter configuration is returned

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